illumos/illumos-gate: usr/src/uts/common/fs/zfs/zfs

annotate usr/src/uts/common/fs/zfs/zfs_vfsops.c @ 11022:63ab26072e41

PSARC 2009/510 ZFS received properties 6850025 want to preserve local properties for zfs_recv 6839260 want zfs send with properties 6855486 zfs_receive should keep trying to set properties even after some fail 6850030 snapshots on read-only dataset shouldn't affect zfs_receive

author	Tom Erickson <Tom.Erickson@Sun.COM>
date	Mon, 09 Nov 2009 20:45:32 -0800
parents	bf1fc133a515
children	f0c31008e395

rev	line source
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2 * CDDL HEADER START
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	3 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	4 * The contents of this file are subject to the terms of the
1484 d330e98f8ed7 6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS ek110237 parents: 1298 diff changeset	5 * Common Development and Distribution License (the "License").
d330e98f8ed7 6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS ek110237 parents: 1298 diff changeset	6 * You may not use this file except in compliance with the License.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	7 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	9 * or http://www.opensolaris.org/os/licensing.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	10 * See the License for the specific language governing permissions
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	11 * and limitations under the License.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	12 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	13 * When distributing Covered Code, include this CDDL HEADER in each
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	15 * If applicable, add the following below this CDDL HEADER, with the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	16 * fields enclosed by brackets "[]" replaced with your own identifying
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	17 * information: Portions Copyright [yyyy] [name of copyright owner]
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	18 *
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	19 * CDDL HEADER END
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	20 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	21 /*
9030 243fd360d81f 6815893 hang mounting a dataset after booting into a new boot environment Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 8227 diff changeset	22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	23 * Use is subject to license terms.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	24 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	25
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	26 #include <sys/types.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	27 #include <sys/param.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	28 #include <sys/systm.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	29 #include <sys/sysmacros.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	30 #include <sys/kmem.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	31 #include <sys/pathname.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	32 #include <sys/vnode.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	33 #include <sys/vfs.h>
3898 c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	34 #include <sys/vfs_opreg.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	35 #include <sys/mntent.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	36 #include <sys/mount.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	37 #include <sys/cmn_err.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	38 #include "fs/fs_subr.h"
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	39 #include <sys/zfs_znode.h>
3461 c19b22f347d6 6514331 in-memory delete queue is not needed ahrens parents: 3265 diff changeset	40 #include <sys/zfs_dir.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	41 #include <sys/zil.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	42 #include <sys/fs/zfs.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	43 #include <sys/dmu.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	44 #include <sys/dsl_prop.h>
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	45 #include <sys/dsl_dataset.h>
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	46 #include <sys/dsl_deleg.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	47 #include <sys/spa.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	48 #include <sys/zap.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	49 #include <sys/varargs.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	50 #include <sys/policy.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	51 #include <sys/atomic.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	52 #include <sys/mkdev.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	53 #include <sys/modctl.h>
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	54 #include <sys/refstr.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	55 #include <sys/zfs_ioctl.h>
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	56 #include <sys/zfs_ctldir.h>
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	57 #include <sys/zfs_fuid.h>
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	58 #include <sys/bootconf.h>
849 8d799fd81a9b 6345023 /dev/zfs fails to open once ZFS module is unloaded bonwick parents: 789 diff changeset	59 #include <sys/sunddi.h>
1484 d330e98f8ed7 6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS ek110237 parents: 1298 diff changeset	60 #include <sys/dnlc.h>
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	61 #include <sys/dmu_objset.h>
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	62 #include <sys/spa_boot.h>
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	63
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	64 int zfsfstype;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	65 vfsops_t *zfs_vfsops = NULL;
849 8d799fd81a9b 6345023 /dev/zfs fails to open once ZFS module is unloaded bonwick parents: 789 diff changeset	66 static major_t zfs_major;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	67 static minor_t zfs_minor;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	68 static kmutex_t zfs_dev_mtx;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	69
9234 bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	70 extern int sys_shutdown;
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	71
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	72 static int zfs_mount(vfs_t vfsp, vnode_t mvp, struct mounta uap, cred_t cr);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	73 static int zfs_umount(vfs_t vfsp, int fflag, cred_t cr);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	74 static int zfs_mountroot(vfs_t *vfsp, enum whymountroot);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	75 static int zfs_root(vfs_t vfsp, vnode_t *vpp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	76 static int zfs_statvfs(vfs_t vfsp, struct statvfs64 statp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	77 static int zfs_vget(vfs_t vfsp, vnode_t vpp, fid_t fidp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	78 static void zfs_freevfs(vfs_t *vfsp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	79
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	80 static const fs_operation_def_t zfs_vfsops_template[] = {
3898 c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	81 VFSNAME_MOUNT, { .vfs_mount = zfs_mount },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	82 VFSNAME_MOUNTROOT, { .vfs_mountroot = zfs_mountroot },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	83 VFSNAME_UNMOUNT, { .vfs_unmount = zfs_umount },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	84 VFSNAME_ROOT, { .vfs_root = zfs_root },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	85 VFSNAME_STATVFS, { .vfs_statvfs = zfs_statvfs },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	86 VFSNAME_SYNC, { .vfs_sync = zfs_sync },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	87 VFSNAME_VGET, { .vfs_vget = zfs_vget },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	88 VFSNAME_FREEVFS, { .vfs_freevfs = zfs_freevfs },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	89 NULL, NULL
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	90 };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	91
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	92 static const fs_operation_def_t zfs_vfsops_eio_template[] = {
3898 c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	93 VFSNAME_FREEVFS, { .vfs_freevfs = zfs_freevfs },
c788126f2a20 PSARC/2007/124 Strong Type-Checking for VFS Operation Registration Mechanism rsb parents: 3461 diff changeset	94 NULL, NULL
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	95 };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	96
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	97 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	98 * We need to keep a count of active fs's.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	99 * This is necessary to prevent our module
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	100 * from being unloaded after a umount -f
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	101 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	102 static uint32_t zfs_active_fs_count = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	103
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	104 static char *noatime_cancel[] = { MNTOPT_ATIME, NULL };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	105 static char *atime_cancel[] = { MNTOPT_NOATIME, NULL };
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	106 static char *noxattr_cancel[] = { MNTOPT_XATTR, NULL };
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	107 static char *xattr_cancel[] = { MNTOPT_NOXATTR, NULL };
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	108
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	109 /*
4596 3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	110 * MO_DEFAULT is not used since the default value is determined
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	111 * by the equivalent property.
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	112 */
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	113 static mntopt_t mntopts[] = {
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	114 { MNTOPT_NOXATTR, noxattr_cancel, NULL, 0, NULL },
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	115 { MNTOPT_XATTR, xattr_cancel, NULL, 0, NULL },
4596 3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	116 { MNTOPT_NOATIME, noatime_cancel, NULL, 0, NULL },
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	117 { MNTOPT_ATIME, atime_cancel, NULL, 0, NULL }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	118 };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	119
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	120 static mntopts_t zfs_mntopts = {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	121 sizeof (mntopts) / sizeof (mntopt_t),
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	122 mntopts
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	123 };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	124
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	125 /ARGSUSED/
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	126 int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	127 zfs_sync(vfs_t vfsp, short flag, cred_t cr)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	128 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	129 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	130 * Data integrity is job one. We don't want a compromised kernel
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	131 * writing to the storage pool, so we never sync during panic.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	132 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	133 if (panicstr)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	134 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	135
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	136 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	137 * SYNC_ATTR is used by fsflush() to force old filesystems like UFS
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	138 * to sync metadata, which they would otherwise cache indefinitely.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	139 * Semantically, the only requirement is that the sync be initiated.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	140 * The DMU syncs out txgs frequently, so there's nothing to do.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	141 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	142 if (flag & SYNC_ATTR)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	143 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	144
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	145 if (vfsp != NULL) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	146 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	147 * Sync a specific filesystem.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	148 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	149 zfsvfs_t *zfsvfs = vfsp->vfs_data;
9234 bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	150 dsl_pool_t *dp;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	151
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	152 ZFS_ENTER(zfsvfs);
9234 bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	153 dp = dmu_objset_pool(zfsvfs->z_os);
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	154
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	155 /*
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	156 * If the system is shutting down, then skip any
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	157 * filesystems which may exist on a suspended pool.
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	158 */
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	159 if (sys_shutdown && spa_suspended(dp->dp_spa)) {
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	160 ZFS_EXIT(zfsvfs);
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	161 return (0);
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	162 }
bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	163
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	164 if (zfsvfs->z_log != NULL)
2638 4f583dfeae92 6413510 zfs: writing to ZFS filesystem slows down fsync() on other files in the same FS perrin parents: 2474 diff changeset	165 zil_commit(zfsvfs->z_log, UINT64_MAX, 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	166 else
9234 bffdc4fc05c4 6792139 recovering from a suspended pool needs some work George Wilson <George.Wilson@Sun.COM> parents: 9214 diff changeset	167 txg_wait_synced(dp, 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	168 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	169 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	170 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	171 * Sync all ZFS filesystems. This is what happens when you
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	172 * run sync(1M). Unlike other filesystems, ZFS honors the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	173 * request by waiting for all pools to commit all dirty data.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	174 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	175 spa_sync_allpools();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	176 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	177
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	178 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	179 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	180
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	181 static int
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	182 zfs_create_unique_device(dev_t *dev)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	183 {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	184 major_t new_major;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	185
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	186 do {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	187 ASSERT3U(zfs_minor, <=, MAXMIN32);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	188 minor_t start = zfs_minor;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	189 do {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	190 mutex_enter(&zfs_dev_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	191 if (zfs_minor >= MAXMIN32) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	192 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	193 * If we're still using the real major
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	194 * keep out of /dev/zfs and /dev/zvol minor
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	195 * number space. If we're using a getudev()'ed
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	196 * major number, we can use all of its minors.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	197 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	198 if (zfs_major == ddi_name_to_major(ZFS_DRIVER))
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	199 zfs_minor = ZFS_MIN_MINOR;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	200 else
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	201 zfs_minor = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	202 } else {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	203 zfs_minor++;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	204 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	205 *dev = makedevice(zfs_major, zfs_minor);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	206 mutex_exit(&zfs_dev_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	207 } while (vfs_devismounted(*dev) && zfs_minor != start);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	208 if (zfs_minor == start) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	209 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	210 * We are using all ~262,000 minor numbers for the
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	211 * current major number. Create a new major number.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	212 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	213 if ((new_major = getudev()) == (major_t)-1) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	214 cmn_err(CE_WARN,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	215 "zfs_mount: Can't get unique major "
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	216 "device number.");
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	217 return (-1);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	218 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	219 mutex_enter(&zfs_dev_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	220 zfs_major = new_major;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	221 zfs_minor = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	222
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	223 mutex_exit(&zfs_dev_mtx);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	224 } else {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	225 break;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	226 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	227 /* CONSTANTCONDITION */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	228 } while (1);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	229
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	230 return (0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	231 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	232
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	233 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	234 atime_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	235 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	236 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	237
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	238 if (newval == TRUE) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	239 zfsvfs->z_atime = TRUE;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	240 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOATIME);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	241 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_ATIME, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	242 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	243 zfsvfs->z_atime = FALSE;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	244 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_ATIME);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	245 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOATIME, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	246 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	247 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	248
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	249 static void
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	250 xattr_changed_cb(void *arg, uint64_t newval)
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	251 {
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	252 zfsvfs_t *zfsvfs = arg;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	253
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	254 if (newval == TRUE) {
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	255 /* XXX locking on vfs_flag? */
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	256 zfsvfs->z_vfs->vfs_flag \|= VFS_XATTR;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	257 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOXATTR);
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	258 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_XATTR, NULL, 0);
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	259 } else {
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	260 /* XXX locking on vfs_flag? */
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	261 zfsvfs->z_vfs->vfs_flag &= ~VFS_XATTR;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	262 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_XATTR);
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	263 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOXATTR, NULL, 0);
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	264 }
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	265 }
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	266
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	267 static void
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	268 blksz_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	269 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	270 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	271
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	272 if (newval < SPA_MINBLOCKSIZE \|\|
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	273 newval > SPA_MAXBLOCKSIZE \|\| !ISP2(newval))
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	274 newval = SPA_MAXBLOCKSIZE;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	275
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	276 zfsvfs->z_max_blksz = newval;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	277 zfsvfs->z_vfs->vfs_bsize = newval;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	278 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	279
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	280 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	281 readonly_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	282 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	283 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	284
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	285 if (newval) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	286 /* XXX locking on vfs_flag? */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	287 zfsvfs->z_vfs->vfs_flag \|= VFS_RDONLY;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	288 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_RW);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	289 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_RO, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	290 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	291 /* XXX locking on vfs_flag? */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	292 zfsvfs->z_vfs->vfs_flag &= ~VFS_RDONLY;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	293 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_RO);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	294 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_RW, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	295 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	296 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	297
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	298 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	299 devices_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	300 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	301 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	302
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	303 if (newval == FALSE) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	304 zfsvfs->z_vfs->vfs_flag \|= VFS_NODEVICES;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	305 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_DEVICES);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	306 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NODEVICES, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	307 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	308 zfsvfs->z_vfs->vfs_flag &= ~VFS_NODEVICES;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	309 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NODEVICES);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	310 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_DEVICES, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	311 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	312 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	313
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	314 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	315 setuid_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	316 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	317 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	318
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	319 if (newval == FALSE) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	320 zfsvfs->z_vfs->vfs_flag \|= VFS_NOSETUID;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	321 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_SETUID);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	322 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOSETUID, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	323 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	324 zfsvfs->z_vfs->vfs_flag &= ~VFS_NOSETUID;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	325 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOSETUID);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	326 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_SETUID, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	327 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	328 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	329
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	330 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	331 exec_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	332 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	333 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	334
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	335 if (newval == FALSE) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	336 zfsvfs->z_vfs->vfs_flag \|= VFS_NOEXEC;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	337 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_EXEC);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	338 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOEXEC, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	339 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	340 zfsvfs->z_vfs->vfs_flag &= ~VFS_NOEXEC;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	341 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOEXEC);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	342 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_EXEC, NULL, 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	343 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	344 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	345
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	346 /*
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	347 * The nbmand mount option can be changed at mount time.
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	348 * We can't allow it to be toggled on live file systems or incorrect
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	349 * behavior may be seen from cifs clients
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	350 *
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	351 * This property isn't registered via dsl_prop_register(), but this callback
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	352 * will be called when a file system is first mounted
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	353 */
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	354 static void
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	355 nbmand_changed_cb(void *arg, uint64_t newval)
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	356 {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	357 zfsvfs_t *zfsvfs = arg;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	358 if (newval == FALSE) {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	359 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NBMAND);
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	360 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NONBMAND, NULL, 0);
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	361 } else {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	362 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NONBMAND);
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	363 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NBMAND, NULL, 0);
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	364 }
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	365 }
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	366
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	367 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	368 snapdir_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	369 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	370 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	371
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	372 zfsvfs->z_show_ctldir = newval;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	373 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	374
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	375 static void
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	376 vscan_changed_cb(void *arg, uint64_t newval)
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	377 {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	378 zfsvfs_t *zfsvfs = arg;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	379
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	380 zfsvfs->z_vscan = newval;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	381 }
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	382
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	383 static void
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	384 acl_mode_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	385 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	386 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	387
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	388 zfsvfs->z_acl_mode = newval;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	389 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	390
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	391 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	392 acl_inherit_changed_cb(void *arg, uint64_t newval)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	393 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	394 zfsvfs_t *zfsvfs = arg;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	395
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	396 zfsvfs->z_acl_inherit = newval;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	397 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	398
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	399 static int
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	400 zfs_register_callbacks(vfs_t *vfsp)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	401 {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	402 struct dsl_dataset *ds = NULL;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	403 objset_t *os = NULL;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	404 zfsvfs_t *zfsvfs = NULL;
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	405 uint64_t nbmand;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	406 int readonly, do_readonly = B_FALSE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	407 int setuid, do_setuid = B_FALSE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	408 int exec, do_exec = B_FALSE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	409 int devices, do_devices = B_FALSE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	410 int xattr, do_xattr = B_FALSE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	411 int atime, do_atime = B_FALSE;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	412 int error = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	413
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	414 ASSERT(vfsp);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	415 zfsvfs = vfsp->vfs_data;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	416 ASSERT(zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	417 os = zfsvfs->z_os;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	418
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	419 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	420 * The act of registering our callbacks will destroy any mount
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	421 * options we may have. In order to enable temporary overrides
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	422 * of mount options, we stash away the current values and
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	423 * restore them after we register the callbacks.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	424 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	425 if (vfs_optionisset(vfsp, MNTOPT_RO, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	426 readonly = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	427 do_readonly = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	428 } else if (vfs_optionisset(vfsp, MNTOPT_RW, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	429 readonly = B_FALSE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	430 do_readonly = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	431 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	432 if (vfs_optionisset(vfsp, MNTOPT_NOSUID, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	433 devices = B_FALSE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	434 setuid = B_FALSE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	435 do_devices = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	436 do_setuid = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	437 } else {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	438 if (vfs_optionisset(vfsp, MNTOPT_NODEVICES, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	439 devices = B_FALSE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	440 do_devices = B_TRUE;
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	441 } else if (vfs_optionisset(vfsp, MNTOPT_DEVICES, NULL)) {
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	442 devices = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	443 do_devices = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	444 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	445
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	446 if (vfs_optionisset(vfsp, MNTOPT_NOSETUID, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	447 setuid = B_FALSE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	448 do_setuid = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	449 } else if (vfs_optionisset(vfsp, MNTOPT_SETUID, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	450 setuid = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	451 do_setuid = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	452 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	453 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	454 if (vfs_optionisset(vfsp, MNTOPT_NOEXEC, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	455 exec = B_FALSE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	456 do_exec = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	457 } else if (vfs_optionisset(vfsp, MNTOPT_EXEC, NULL)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	458 exec = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	459 do_exec = B_TRUE;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	460 }
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	461 if (vfs_optionisset(vfsp, MNTOPT_NOXATTR, NULL)) {
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	462 xattr = B_FALSE;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	463 do_xattr = B_TRUE;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	464 } else if (vfs_optionisset(vfsp, MNTOPT_XATTR, NULL)) {
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	465 xattr = B_TRUE;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	466 do_xattr = B_TRUE;
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	467 }
4596 3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	468 if (vfs_optionisset(vfsp, MNTOPT_NOATIME, NULL)) {
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	469 atime = B_FALSE;
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	470 do_atime = B_TRUE;
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	471 } else if (vfs_optionisset(vfsp, MNTOPT_ATIME, NULL)) {
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	472 atime = B_TRUE;
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	473 do_atime = B_TRUE;
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	474 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	475
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	476 /*
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	477 * nbmand is a special property. It can only be changed at
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	478 * mount time.
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	479 *
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	480 * This is weird, but it is documented to only be changeable
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	481 * at mount time.
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	482 */
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	483 if (vfs_optionisset(vfsp, MNTOPT_NONBMAND, NULL)) {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	484 nbmand = B_FALSE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	485 } else if (vfs_optionisset(vfsp, MNTOPT_NBMAND, NULL)) {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	486 nbmand = B_TRUE;
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	487 } else {
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	488 char osname[MAXNAMELEN];
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	489
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	490 dmu_objset_name(os, osname);
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	491 if (error = dsl_prop_get_integer(osname, "nbmand", &nbmand,
7265 cc18862247da PSARC/2008/483 ZFS clone -o ahrens parents: 7184 diff changeset	492 NULL)) {
cc18862247da PSARC/2008/483 ZFS clone -o ahrens parents: 7184 diff changeset	493 return (error);
cc18862247da PSARC/2008/483 ZFS clone -o ahrens parents: 7184 diff changeset	494 }
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	495 }
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	496
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	497 /*
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	498 * Register property callbacks.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	499 *
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	500 * It would probably be fine to just check for i/o error from
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	501 * the first prop_register(), but I guess I like to go
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	502 * overboard...
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	503 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	504 ds = dmu_objset_ds(os);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	505 error = dsl_prop_register(ds, "atime", atime_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	506 error = error ? error : dsl_prop_register(ds,
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	507 "xattr", xattr_changed_cb, zfsvfs);
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	508 error = error ? error : dsl_prop_register(ds,
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	509 "recordsize", blksz_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	510 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	511 "readonly", readonly_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	512 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	513 "devices", devices_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	514 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	515 "setuid", setuid_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	516 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	517 "exec", exec_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	518 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	519 "snapdir", snapdir_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	520 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	521 "aclmode", acl_mode_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	522 error = error ? error : dsl_prop_register(ds,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	523 "aclinherit", acl_inherit_changed_cb, zfsvfs);
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	524 error = error ? error : dsl_prop_register(ds,
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	525 "vscan", vscan_changed_cb, zfsvfs);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	526 if (error)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	527 goto unregister;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	528
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	529 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	530 * Invoke our callbacks to restore temporary mount options.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	531 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	532 if (do_readonly)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	533 readonly_changed_cb(zfsvfs, readonly);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	534 if (do_setuid)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	535 setuid_changed_cb(zfsvfs, setuid);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	536 if (do_exec)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	537 exec_changed_cb(zfsvfs, exec);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	538 if (do_devices)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	539 devices_changed_cb(zfsvfs, devices);
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	540 if (do_xattr)
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	541 xattr_changed_cb(zfsvfs, xattr);
4596 3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	542 if (do_atime)
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	543 atime_changed_cb(zfsvfs, atime);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	544
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	545 nbmand_changed_cb(zfsvfs, nbmand);
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	546
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	547 return (0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	548
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	549 unregister:
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	550 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	551 * We may attempt to unregister some callbacks that are not
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	552 * registered, but this is OK; it will simply return ENOMSG,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	553 * which we will ignore.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	554 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	555 (void) dsl_prop_unregister(ds, "atime", atime_changed_cb, zfsvfs);
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	556 (void) dsl_prop_unregister(ds, "xattr", xattr_changed_cb, zfsvfs);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	557 (void) dsl_prop_unregister(ds, "recordsize", blksz_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	558 (void) dsl_prop_unregister(ds, "readonly", readonly_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	559 (void) dsl_prop_unregister(ds, "devices", devices_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	560 (void) dsl_prop_unregister(ds, "setuid", setuid_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	561 (void) dsl_prop_unregister(ds, "exec", exec_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	562 (void) dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	563 (void) dsl_prop_unregister(ds, "aclmode", acl_mode_changed_cb, zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	564 (void) dsl_prop_unregister(ds, "aclinherit", acl_inherit_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	565 zfsvfs);
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	566 (void) dsl_prop_unregister(ds, "vscan", vscan_changed_cb, zfsvfs);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	567 return (error);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	568
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	569 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	570
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	571 static void
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	572 uidacct(objset_t *os, boolean_t isgroup, uint64_t fuid,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	573 int64_t delta, dmu_tx_t *tx)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	574 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	575 uint64_t used = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	576 char buf[32];
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	577 int err;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	578 uint64_t obj = isgroup ? DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	579
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	580 if (delta == 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	581 return;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	582
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	583 (void) snprintf(buf, sizeof (buf), "%llx", (longlong_t)fuid);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	584 err = zap_lookup(os, obj, buf, 8, 1, &used);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	585 ASSERT(err == 0 \|\| err == ENOENT);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	586 /* no underflow/overflow */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	587 ASSERT(delta > 0 \|\| used >= -delta);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	588 ASSERT(delta < 0 \|\| used + delta > used);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	589 used += delta;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	590 if (used == 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	591 err = zap_remove(os, obj, buf, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	592 else
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	593 err = zap_update(os, obj, buf, 8, 1, &used, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	594 ASSERT(err == 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	595 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	596
10407 34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	597 static int
34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	598 zfs_space_delta_cb(dmu_object_type_t bonustype, void *bonus,
34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	599 uint64_t userp, uint64_t groupp)
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	600 {
10407 34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	601 znode_phys_t *znp = bonus;
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	602
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	603 if (bonustype != DMU_OT_ZNODE)
10407 34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	604 return (ENOENT);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	605
10407 34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	606 *userp = znp->zp_uid;
34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	607 *groupp = znp->zp_gid;
34e10c4af053 6875779 zfs user accounting callbacks can be simplified Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10342 diff changeset	608 return (0);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	609 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	610
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	611 static void
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	612 fuidstr_to_sid(zfsvfs_t zfsvfs, const char fuidstr,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	613 char domainbuf, int buflen, uid_t ridp)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	614 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	615 uint64_t fuid;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	616 const char *domain;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	617
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	618 fuid = strtonum(fuidstr, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	619
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	620 domain = zfs_fuid_find_by_idx(zfsvfs, FUID_INDEX(fuid));
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	621 if (domain)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	622 (void) strlcpy(domainbuf, domain, buflen);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	623 else
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	624 domainbuf[0] = '\0';
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	625 *ridp = FUID_RID(fuid);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	626 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	627
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	628 static uint64_t
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	629 zfs_userquota_prop_to_obj(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	630 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	631 switch (type) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	632 case ZFS_PROP_USERUSED:
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	633 return (DMU_USERUSED_OBJECT);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	634 case ZFS_PROP_GROUPUSED:
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	635 return (DMU_GROUPUSED_OBJECT);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	636 case ZFS_PROP_USERQUOTA:
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	637 return (zfsvfs->z_userquota_obj);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	638 case ZFS_PROP_GROUPQUOTA:
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	639 return (zfsvfs->z_groupquota_obj);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	640 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	641 return (0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	642 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	643
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	644 int
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	645 zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	646 uint64_t cookiep, void vbuf, uint64_t *bufsizep)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	647 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	648 int error;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	649 zap_cursor_t zc;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	650 zap_attribute_t za;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	651 zfs_useracct_t *buf = vbuf;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	652 uint64_t obj;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	653
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	654 if (!dmu_objset_userspace_present(zfsvfs->z_os))
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	655 return (ENOTSUP);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	656
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	657 obj = zfs_userquota_prop_to_obj(zfsvfs, type);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	658 if (obj == 0) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	659 *bufsizep = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	660 return (0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	661 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	662
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	663 for (zap_cursor_init_serialized(&zc, zfsvfs->z_os, obj, *cookiep);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	664 (error = zap_cursor_retrieve(&zc, &za)) == 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	665 zap_cursor_advance(&zc)) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	666 if ((uintptr_t)buf - (uintptr_t)vbuf + sizeof (zfs_useracct_t) >
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	667 *bufsizep)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	668 break;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	669
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	670 fuidstr_to_sid(zfsvfs, za.za_name,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	671 buf->zu_domain, sizeof (buf->zu_domain), &buf->zu_rid);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	672
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	673 buf->zu_space = za.za_first_integer;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	674 buf++;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	675 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	676 if (error == ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	677 error = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	678
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	679 ASSERT3U((uintptr_t)buf - (uintptr_t)vbuf, <=, *bufsizep);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	680 *bufsizep = (uintptr_t)buf - (uintptr_t)vbuf;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	681 *cookiep = zap_cursor_serialize(&zc);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	682 zap_cursor_fini(&zc);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	683 return (error);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	684 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	685
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	686 /*
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	687 * buf must be big enough (eg, 32 bytes)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	688 */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	689 static int
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	690 id_to_fuidstr(zfsvfs_t zfsvfs, const char domain, uid_t rid,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	691 char *buf, boolean_t addok)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	692 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	693 uint64_t fuid;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	694 int domainid = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	695
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	696 if (domain && domain[0]) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	697 domainid = zfs_fuid_find_by_domain(zfsvfs, domain, NULL, addok);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	698 if (domainid == -1)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	699 return (ENOENT);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	700 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	701 fuid = FUID_ENCODE(domainid, rid);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	702 (void) sprintf(buf, "%llx", (longlong_t)fuid);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	703 return (0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	704 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	705
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	706 int
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	707 zfs_userspace_one(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	708 const char domain, uint64_t rid, uint64_t valp)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	709 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	710 char buf[32];
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	711 int err;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	712 uint64_t obj;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	713
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	714 *valp = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	715
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	716 if (!dmu_objset_userspace_present(zfsvfs->z_os))
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	717 return (ENOTSUP);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	718
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	719 obj = zfs_userquota_prop_to_obj(zfsvfs, type);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	720 if (obj == 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	721 return (0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	722
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	723 err = id_to_fuidstr(zfsvfs, domain, rid, buf, B_FALSE);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	724 if (err)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	725 return (err);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	726
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	727 err = zap_lookup(zfsvfs->z_os, obj, buf, 8, 1, valp);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	728 if (err == ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	729 err = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	730 return (err);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	731 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	732
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	733 int
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	734 zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	735 const char *domain, uint64_t rid, uint64_t quota)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	736 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	737 char buf[32];
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	738 int err;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	739 dmu_tx_t *tx;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	740 uint64_t *objp;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	741 boolean_t fuid_dirtied;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	742
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	743 if (type != ZFS_PROP_USERQUOTA && type != ZFS_PROP_GROUPQUOTA)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	744 return (EINVAL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	745
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	746 if (zfsvfs->z_version < ZPL_VERSION_USERSPACE)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	747 return (ENOTSUP);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	748
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	749 objp = (type == ZFS_PROP_USERQUOTA) ? &zfsvfs->z_userquota_obj :
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	750 &zfsvfs->z_groupquota_obj;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	751
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	752 err = id_to_fuidstr(zfsvfs, domain, rid, buf, B_TRUE);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	753 if (err)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	754 return (err);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	755 fuid_dirtied = zfsvfs->z_fuid_dirty;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	756
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	757 tx = dmu_tx_create(zfsvfs->z_os);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	758 dmu_tx_hold_zap(tx, objp ? objp : DMU_NEW_OBJECT, B_TRUE, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	759 if (*objp == 0) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	760 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_TRUE,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	761 zfs_userquota_prop_prefixes[type]);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	762 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	763 if (fuid_dirtied)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	764 zfs_fuid_txhold(zfsvfs, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	765 err = dmu_tx_assign(tx, TXG_WAIT);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	766 if (err) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	767 dmu_tx_abort(tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	768 return (err);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	769 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	770
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	771 mutex_enter(&zfsvfs->z_lock);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	772 if (*objp == 0) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	773 *objp = zap_create(zfsvfs->z_os, DMU_OT_USERGROUP_QUOTA,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	774 DMU_OT_NONE, 0, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	775 VERIFY(0 == zap_add(zfsvfs->z_os, MASTER_NODE_OBJ,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	776 zfs_userquota_prop_prefixes[type], 8, 1, objp, tx));
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	777 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	778 mutex_exit(&zfsvfs->z_lock);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	779
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	780 if (quota == 0) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	781 err = zap_remove(zfsvfs->z_os, *objp, buf, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	782 if (err == ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	783 err = 0;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	784 } else {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	785 err = zap_update(zfsvfs->z_os, *objp, buf, 8, 1, &quota, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	786 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	787 ASSERT(err == 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	788 if (fuid_dirtied)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	789 zfs_fuid_sync(zfsvfs, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	790 dmu_tx_commit(tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	791 return (err);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	792 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	793
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	794 boolean_t
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	795 zfs_usergroup_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	796 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	797 char buf[32];
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	798 uint64_t used, quota, usedobj, quotaobj;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	799 int err;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	800
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	801 usedobj = isgroup ? DMU_GROUPUSED_OBJECT : DMU_USERUSED_OBJECT;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	802 quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	803
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	804 if (quotaobj == 0 \|\| zfsvfs->z_replay)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	805 return (B_FALSE);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	806
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	807 (void) sprintf(buf, "%llx", (longlong_t)fuid);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	808 err = zap_lookup(zfsvfs->z_os, quotaobj, buf, 8, 1, &quota);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	809 if (err != 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	810 return (B_FALSE);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	811
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	812 err = zap_lookup(zfsvfs->z_os, usedobj, buf, 8, 1, &used);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	813 if (err != 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	814 return (B_FALSE);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	815 return (used >= quota);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	816 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	817
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	818 int
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	819 zfsvfs_create(const char osname, zfsvfs_t *zvp)
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	820 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	821 objset_t *os;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	822 zfsvfs_t *zfsvfs;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	823 uint64_t zval;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	824 int i, error;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	825
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	826 zfsvfs = kmem_zalloc(sizeof (zfsvfs_t), KM_SLEEP);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	827
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	828 /*
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	829 * We claim to always be readonly so we can open snapshots;
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	830 * other ZPL code will prevent us from writing to snapshots.
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	831 */
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	832 error = dmu_objset_own(osname, DMU_OST_ZFS, B_TRUE, zfsvfs, &os);
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	833 if (error) {
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	834 kmem_free(zfsvfs, sizeof (zfsvfs_t));
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	835 return (error);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	836 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	837
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	838 /*
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	839 * Initialize the zfs-specific filesystem structure.
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	840 * Should probably make this a kmem cache, shuffle fields,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	841 * and just bzero up to z_hold_mtx[].
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	842 */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	843 zfsvfs->z_vfs = NULL;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	844 zfsvfs->z_parent = zfsvfs;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	845 zfsvfs->z_max_blksz = SPA_MAXBLOCKSIZE;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	846 zfsvfs->z_show_ctldir = ZFS_SNAPDIR_VISIBLE;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	847 zfsvfs->z_os = os;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	848
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	849 error = zfs_get_zplprop(os, ZFS_PROP_VERSION, &zfsvfs->z_version);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	850 if (error) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	851 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	852 } else if (zfsvfs->z_version > ZPL_VERSION) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	853 (void) printf("Mismatched versions: File system "
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	854 "is version %llu on-disk format, which is "
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	855 "incompatible with this software version %lld!",
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	856 (u_longlong_t)zfsvfs->z_version, ZPL_VERSION);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	857 error = ENOTSUP;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	858 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	859 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	860
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	861 if ((error = zfs_get_zplprop(os, ZFS_PROP_NORMALIZE, &zval)) != 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	862 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	863 zfsvfs->z_norm = (int)zval;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	864
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	865 if ((error = zfs_get_zplprop(os, ZFS_PROP_UTF8ONLY, &zval)) != 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	866 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	867 zfsvfs->z_utf8 = (zval != 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	868
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	869 if ((error = zfs_get_zplprop(os, ZFS_PROP_CASE, &zval)) != 0)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	870 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	871 zfsvfs->z_case = (uint_t)zval;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	872
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	873 /*
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	874 * Fold case on file systems that are always or sometimes case
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	875 * insensitive.
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	876 */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	877 if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE \|\|
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	878 zfsvfs->z_case == ZFS_CASE_MIXED)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	879 zfsvfs->z_norm \|= U8_TEXTPREP_TOUPPER;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	880
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	881 zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	882
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	883 error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	884 &zfsvfs->z_root);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	885 if (error)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	886 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	887 ASSERT(zfsvfs->z_root != 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	888
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	889 error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_UNLINKED_SET, 8, 1,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	890 &zfsvfs->z_unlinkedobj);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	891 if (error)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	892 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	893
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	894 error = zap_lookup(os, MASTER_NODE_OBJ,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	895 zfs_userquota_prop_prefixes[ZFS_PROP_USERQUOTA],
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	896 8, 1, &zfsvfs->z_userquota_obj);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	897 if (error && error != ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	898 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	899
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	900 error = zap_lookup(os, MASTER_NODE_OBJ,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	901 zfs_userquota_prop_prefixes[ZFS_PROP_GROUPQUOTA],
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	902 8, 1, &zfsvfs->z_groupquota_obj);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	903 if (error && error != ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	904 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	905
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	906 error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 8, 1,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	907 &zfsvfs->z_fuid_obj);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	908 if (error && error != ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	909 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	910
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	911 error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SHARES_DIR, 8, 1,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	912 &zfsvfs->z_shares_dir);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	913 if (error && error != ENOENT)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	914 goto out;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	915
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	916 mutex_init(&zfsvfs->z_znodes_lock, NULL, MUTEX_DEFAULT, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	917 mutex_init(&zfsvfs->z_lock, NULL, MUTEX_DEFAULT, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	918 list_create(&zfsvfs->z_all_znodes, sizeof (znode_t),
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	919 offsetof(znode_t, z_link_node));
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	920 rrw_init(&zfsvfs->z_teardown_lock);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	921 rw_init(&zfsvfs->z_teardown_inactive_lock, NULL, RW_DEFAULT, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	922 rw_init(&zfsvfs->z_fuid_lock, NULL, RW_DEFAULT, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	923 for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	924 mutex_init(&zfsvfs->z_hold_mtx[i], NULL, MUTEX_DEFAULT, NULL);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	925
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	926 *zvp = zfsvfs;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	927 return (0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	928
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	929 out:
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	930 dmu_objset_disown(os, zfsvfs);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	931 *zvp = NULL;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	932 kmem_free(zfsvfs, sizeof (zfsvfs_t));
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	933 return (error);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	934 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	935
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	936 static int
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	937 zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	938 {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	939 int error;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	940
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	941 error = zfs_register_callbacks(zfsvfs->z_vfs);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	942 if (error)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	943 return (error);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	944
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	945 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	946 * Set the objset user_ptr to track its zfsvfs.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	947 */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	948 mutex_enter(&zfsvfs->z_os->os_user_ptr_lock);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	949 dmu_objset_set_user(zfsvfs->z_os, zfsvfs);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	950 mutex_exit(&zfsvfs->z_os->os_user_ptr_lock);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	951
9292 e112194b5b73 6798298 zfs rollback or incremental zfs recv results in intent log being closed Neil Perrin <Neil.Perrin@Sun.COM> parents: 9246 diff changeset	952 zfsvfs->z_log = zil_open(zfsvfs->z_os, zfs_get_data);
e112194b5b73 6798298 zfs rollback or incremental zfs recv results in intent log being closed Neil Perrin <Neil.Perrin@Sun.COM> parents: 9246 diff changeset	953 if (zil_disable) {
10685 931790026ac6 6846163 ZFS continues to use faulted logzilla, bringing system to a crawl George Wilson <George.Wilson@Sun.COM> parents: 10407 diff changeset	954 zil_destroy(zfsvfs->z_log, B_FALSE);
9292 e112194b5b73 6798298 zfs rollback or incremental zfs recv results in intent log being closed Neil Perrin <Neil.Perrin@Sun.COM> parents: 9246 diff changeset	955 zfsvfs->z_log = NULL;
e112194b5b73 6798298 zfs rollback or incremental zfs recv results in intent log being closed Neil Perrin <Neil.Perrin@Sun.COM> parents: 9246 diff changeset	956 }
e112194b5b73 6798298 zfs rollback or incremental zfs recv results in intent log being closed Neil Perrin <Neil.Perrin@Sun.COM> parents: 9246 diff changeset	957
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	958 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	959 * If we are not mounting (ie: online recv), then we don't
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	960 * have to worry about replaying the log as we blocked all
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	961 * operations out since we closed the ZIL.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	962 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	963 if (mounting) {
7638 5505e89fa6c8 6741237 zfs hang in txg_wait_open() on boot Neil Perrin <Neil.Perrin@Sun.COM> parents: 7265 diff changeset	964 boolean_t readonly;
5505e89fa6c8 6741237 zfs hang in txg_wait_open() on boot Neil Perrin <Neil.Perrin@Sun.COM> parents: 7265 diff changeset	965
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	966 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	967 * During replay we remove the read only flag to
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	968 * allow replays to succeed.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	969 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	970 readonly = zfsvfs->z_vfs->vfs_flag & VFS_RDONLY;
8227 f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	971 if (readonly != 0)
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	972 zfsvfs->z_vfs->vfs_flag &= ~VFS_RDONLY;
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	973 else
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	974 zfs_unlinked_drain(zfsvfs);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	975
9292 e112194b5b73 6798298 zfs rollback or incremental zfs recv results in intent log being closed Neil Perrin <Neil.Perrin@Sun.COM> parents: 9246 diff changeset	976 if (zfsvfs->z_log) {
8227 f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	977 /*
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	978 * Parse and replay the intent log.
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	979 *
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	980 * Because of ziltest, this must be done after
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	981 * zfs_unlinked_drain(). (Further note: ziltest
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	982 * doesn't use readonly mounts, where
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	983 * zfs_unlinked_drain() isn't called.) This is because
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	984 * ziltest causes spa_sync() to think it's committed,
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	985 * but actually it is not, so the intent log contains
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	986 * many txg's worth of changes.
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	987 *
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	988 * In particular, if object N is in the unlinked set in
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	989 * the last txg to actually sync, then it could be
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	990 * actually freed in a later txg and then reallocated
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	991 * in a yet later txg. This would write a "create
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	992 * object N" record to the intent log. Normally, this
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	993 * would be fine because the spa_sync() would have
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	994 * written out the fact that object N is free, before
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	995 * we could write the "create object N" intent log
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	996 * record.
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	997 *
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	998 * But when we are in ziltest mode, we advance the "open
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	999 * txg" without actually spa_sync()-ing the changes to
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1000 * disk. So we would see that object N is still
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1001 * allocated and in the unlinked set, and there is an
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1002 * intent log record saying to allocate it.
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1003 */
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1004 zfsvfs->z_replay = B_TRUE;
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1005 zil_replay(zfsvfs->z_os, zfsvfs, zfs_replay_vector);
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1006 zfsvfs->z_replay = B_FALSE;
f7d7be9b1f56 6765294 Refactor replay Neil Perrin <Neil.Perrin@Sun.COM> parents: 7757 diff changeset	1007 }
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1008 zfsvfs->z_vfs->vfs_flag \|= readonly; /* restore readonly bit */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1009 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1010
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1011 return (0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1012 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1013
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1014 void
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1015 zfsvfs_free(zfsvfs_t *zfsvfs)
6083 23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1016 {
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1017 int i;
9788 f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1018 extern krwlock_t zfsvfs_lock; /* in zfs_znode.c */
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1019
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1020 /*
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1021 * This is a barrier to prevent the filesystem from going away in
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1022 * zfs_znode_move() until we can safely ensure that the filesystem is
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1023 * not unmounted. We consider the filesystem valid before the barrier
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1024 * and invalid after the barrier.
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1025 */
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1026 rw_enter(&zfsvfs_lock, RW_READER);
f660bc44f2e8 6843700 zfs_znode_move() does not ensure valid file system pointer Tom Erickson <Tom.Erickson@Sun.COM> parents: 9749 diff changeset	1027 rw_exit(&zfsvfs_lock);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1028
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1029 zfs_fuid_destroy(zfsvfs);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1030
6083 23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1031 mutex_destroy(&zfsvfs->z_znodes_lock);
9030 243fd360d81f 6815893 hang mounting a dataset after booting into a new boot environment Mark Shellenbaum <Mark.Shellenbaum@Sun.COM> parents: 8227 diff changeset	1032 mutex_destroy(&zfsvfs->z_lock);
6083 23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1033 list_destroy(&zfsvfs->z_all_znodes);
23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1034 rrw_destroy(&zfsvfs->z_teardown_lock);
23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1035 rw_destroy(&zfsvfs->z_teardown_inactive_lock);
23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1036 rw_destroy(&zfsvfs->z_fuid_lock);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1037 for (i = 0; i != ZFS_OBJ_MTX_SZ; i++)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1038 mutex_destroy(&zfsvfs->z_hold_mtx[i]);
6083 23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1039 kmem_free(zfsvfs, sizeof (zfsvfs_t));
23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1040 }
23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1041
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1042 static void
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1043 zfs_set_fuid_feature(zfsvfs_t *zfsvfs)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1044 {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1045 zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1046 if (zfsvfs->z_use_fuids && zfsvfs->z_vfs) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1047 vfs_set_feature(zfsvfs->z_vfs, VFSFT_XVATTR);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1048 vfs_set_feature(zfsvfs->z_vfs, VFSFT_SYSATTR_VIEWS);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1049 vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACEMASKONACCESS);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1050 vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACLONCREATE);
9749 105f407a2680 PSARC 2009/246 ZFS support for Access Based Enumeration Tim Haley <Tim.Haley@Sun.COM> parents: 9688 diff changeset	1051 vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACCESS_FILTER);
10793 34709091de6d 6886081 Solaris needs reparse point support (PSARC 2009/387) Dai Ngo <dai.ngo@sun.com> parents: 10685 diff changeset	1052 vfs_set_feature(zfsvfs->z_vfs, VFSFT_REPARSE);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1053 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1054 }
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1055
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1056 static int
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6689 diff changeset	1057 zfs_domount(vfs_t vfsp, char osname)
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1058 {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1059 dev_t mount_dev;
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1060 uint64_t recordsize, fsid_guid;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1061 int error = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1062 zfsvfs_t *zfsvfs;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1063
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1064 ASSERT(vfsp);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1065 ASSERT(osname);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1066
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1067 error = zfsvfs_create(osname, &zfsvfs);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1068 if (error)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1069 return (error);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1070 zfsvfs->z_vfs = vfsp;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1071
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1072 /* Initialize the generic filesystem structure. */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1073 vfsp->vfs_bcount = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1074 vfsp->vfs_data = NULL;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1075
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1076 if (zfs_create_unique_device(&mount_dev) == -1) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1077 error = ENODEV;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1078 goto out;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1079 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1080 ASSERT(vfs_devismounted(mount_dev) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1081
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1082 if (error = dsl_prop_get_integer(osname, "recordsize", &recordsize,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1083 NULL))
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1084 goto out;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1085
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1086 vfsp->vfs_dev = mount_dev;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1087 vfsp->vfs_fstype = zfsfstype;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1088 vfsp->vfs_bsize = recordsize;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1089 vfsp->vfs_flag \|= VFS_NOTRUNC;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1090 vfsp->vfs_data = zfsvfs;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1091
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1092 /*
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1093 * The fsid is 64 bits, composed of an 8-bit fs type, which
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1094 * separates our fsid from any other filesystem types, and a
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1095 * 56-bit objset unique ID. The objset unique ID is unique to
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1096 * all objsets open on this system, provided by unique_create().
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1097 * The 8-bit fs type must be put in the low bits of fsid[1]
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1098 * because that's where other Solaris filesystems put it.
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1099 */
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1100 fsid_guid = dmu_objset_fsid_guid(zfsvfs->z_os);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1101 ASSERT((fsid_guid & ~((1ULL<<56)-1)) == 0);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1102 vfsp->vfs_fsid.val[0] = fsid_guid;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1103 vfsp->vfs_fsid.val[1] = ((fsid_guid>>32) << 8) \|
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1104 zfsfstype & 0xFF;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1105
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1106 /*
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1107 * Set features for file system.
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1108 */
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1109 zfs_set_fuid_feature(zfsvfs);
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1110 if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE) {
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1111 vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS);
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1112 vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE);
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1113 vfs_set_feature(vfsp, VFSFT_NOCASESENSITIVE);
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1114 } else if (zfsvfs->z_case == ZFS_CASE_MIXED) {
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1115 vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS);
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1116 vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE);
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	1117 }
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1118
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1119 if (dmu_objset_is_snapshot(zfsvfs->z_os)) {
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1120 uint64_t pval;
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	1121
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1122 atime_changed_cb(zfsvfs, B_FALSE);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1123 readonly_changed_cb(zfsvfs, B_TRUE);
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1124 if (error = dsl_prop_get_integer(osname, "xattr", &pval, NULL))
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	1125 goto out;
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1126 xattr_changed_cb(zfsvfs, pval);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1127 zfsvfs->z_issnap = B_TRUE;
9688 127be1845343 6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9396 diff changeset	1128
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1129 mutex_enter(&zfsvfs->z_os->os_user_ptr_lock);
9688 127be1845343 6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9396 diff changeset	1130 dmu_objset_set_user(zfsvfs->z_os, zfsvfs);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1131 mutex_exit(&zfsvfs->z_os->os_user_ptr_lock);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1132 } else {
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1133 error = zfsvfs_setup(zfsvfs, B_TRUE);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1134 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1135
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1136 if (!zfsvfs->z_issnap)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1137 zfsctl_create(zfsvfs);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1138 out:
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1139 if (error) {
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1140 dmu_objset_disown(zfsvfs->z_os, zfsvfs);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	1141 zfsvfs_free(zfsvfs);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1142 } else {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1143 atomic_add_32(&zfs_active_fs_count, 1);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1144 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1145
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1146 return (error);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1147 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1148
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1149 void
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1150 zfs_unregister_callbacks(zfsvfs_t *zfsvfs)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1151 {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1152 objset_t *os = zfsvfs->z_os;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1153 struct dsl_dataset *ds;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1154
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1155 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1156 * Unregister properties.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1157 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1158 if (!dmu_objset_is_snapshot(os)) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1159 ds = dmu_objset_ds(os);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1160 VERIFY(dsl_prop_unregister(ds, "atime", atime_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1161 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1162
3234 28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	1163 VERIFY(dsl_prop_unregister(ds, "xattr", xattr_changed_cb,
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	1164 zfsvfs) == 0);
28b36f7bbd7e PSARC/2006/638 noxattr ZFS property ck153898 parents: 2885 diff changeset	1165
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1166 VERIFY(dsl_prop_unregister(ds, "recordsize", blksz_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1167 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1168
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1169 VERIFY(dsl_prop_unregister(ds, "readonly", readonly_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1170 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1171
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1172 VERIFY(dsl_prop_unregister(ds, "devices", devices_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1173 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1174
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1175 VERIFY(dsl_prop_unregister(ds, "setuid", setuid_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1176 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1177
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1178 VERIFY(dsl_prop_unregister(ds, "exec", exec_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1179 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1180
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1181 VERIFY(dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1182 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1183
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1184 VERIFY(dsl_prop_unregister(ds, "aclmode", acl_mode_changed_cb,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1185 zfsvfs) == 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1186
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1187 VERIFY(dsl_prop_unregister(ds, "aclinherit",
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1188 acl_inherit_changed_cb, zfsvfs) == 0);
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1189
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1190 VERIFY(dsl_prop_unregister(ds, "vscan",
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1191 vscan_changed_cb, zfsvfs) == 0);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1192 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1193 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1194
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1195 /*
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1196 * Convert a decimal digit string to a uint64_t integer.
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1197 */
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1198 static int
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1199 str_to_uint64(char str, uint64_t objnum)
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1200 {
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1201 uint64_t num = 0;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1202
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1203 while (*str) {
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1204 if (str < '0' \|\| str > '9')
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1205 return (EINVAL);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1206
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1207 num = num10 + str++ - '0';
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1208 }
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1209
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1210 *objnum = num;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1211 return (0);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1212 }
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1213
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1214 /*
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1215 * The boot path passed from the boot loader is in the form of
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1216 * "rootpool-name/root-filesystem-object-number'. Convert this
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1217 * string to a dataset name: "rootpool-name/root-filesystem-name".
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1218 */
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1219 static int
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1220 zfs_parse_bootfs(char bpath, char outpath)
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1221 {
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1222 char *slashp;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1223 uint64_t objnum;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1224 int error;
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1225
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1226 if (bpath == 0 \|\| bpath == '/')
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1227 return (EINVAL);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1228
7656 2621e50fdf4a PSARC 2008/382 Fast Reboot Sherry Moore <Sherry.Moore@Sun.COM> parents: 7638 diff changeset	1229 (void) strcpy(outpath, bpath);
2621e50fdf4a PSARC 2008/382 Fast Reboot Sherry Moore <Sherry.Moore@Sun.COM> parents: 7638 diff changeset	1230
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1231 slashp = strchr(bpath, '/');
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1232
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1233 /* if no '/', just return the pool name */
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1234 if (slashp == NULL) {
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1235 return (0);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1236 }
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1237
7656 2621e50fdf4a PSARC 2008/382 Fast Reboot Sherry Moore <Sherry.Moore@Sun.COM> parents: 7638 diff changeset	1238 /* if not a number, just return the root dataset name */
2621e50fdf4a PSARC 2008/382 Fast Reboot Sherry Moore <Sherry.Moore@Sun.COM> parents: 7638 diff changeset	1239 if (str_to_uint64(slashp+1, &objnum)) {
2621e50fdf4a PSARC 2008/382 Fast Reboot Sherry Moore <Sherry.Moore@Sun.COM> parents: 7638 diff changeset	1240 return (0);
2621e50fdf4a PSARC 2008/382 Fast Reboot Sherry Moore <Sherry.Moore@Sun.COM> parents: 7638 diff changeset	1241 }
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1242
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1243 *slashp = '\0';
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1244 error = dsl_dsobj_to_dsname(bpath, objnum, outpath);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1245 *slashp = '/';
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1246
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1247 return (error);
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1248 }
f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1249
10972 807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1250 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1251 * zfs_check_global_label:
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1252 * Check that the hex label string is appropriate for the dataset
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1253 * being mounted into the global_zone proper.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1254 *
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1255 * Return an error if the hex label string is not default or
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1256 * admin_low/admin_high. For admin_low labels, the corresponding
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1257 * dataset must be readonly.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1258 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1259 int
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1260 zfs_check_global_label(const char dsname, const char hexsl)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1261 {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1262 if (strcasecmp(hexsl, ZFS_MLSLABEL_DEFAULT) == 0)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1263 return (0);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1264 if (strcasecmp(hexsl, ADMIN_HIGH) == 0)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1265 return (0);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1266 if (strcasecmp(hexsl, ADMIN_LOW) == 0) {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1267 /* must be readonly */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1268 uint64_t rdonly;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1269
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1270 if (dsl_prop_get_integer(dsname,
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1271 zfs_prop_to_name(ZFS_PROP_READONLY), &rdonly, NULL))
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1272 return (EACCES);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1273 return (rdonly ? 0 : EACCES);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1274 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1275 return (EACCES);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1276 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1277
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1278 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1279 * zfs_mount_label_policy:
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1280 * Determine whether the mount is allowed according to MAC check.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1281 * by comparing (where appropriate) label of the dataset against
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1282 * the label of the zone being mounted into. If the dataset has
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1283 * no label, create one.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1284 *
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1285 * Returns:
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1286 * 0 : access allowed
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1287 * >0 : error code, such as EACCES
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1288 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1289 static int
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1290 zfs_mount_label_policy(vfs_t vfsp, char osname)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1291 {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1292 int error, retv;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1293 zone_t *mntzone = NULL;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1294 ts_label_t *mnt_tsl;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1295 bslabel_t *mnt_sl;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1296 bslabel_t ds_sl;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1297 char ds_hexsl[MAXNAMELEN];
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1298
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1299 retv = EACCES; /* assume the worst */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1300
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1301 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1302 * Start by getting the dataset label if it exists.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1303 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1304 error = dsl_prop_get(osname, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1305 1, sizeof (ds_hexsl), &ds_hexsl, NULL);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1306 if (error)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1307 return (EACCES);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1308
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1309 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1310 * If labeling is NOT enabled, then disallow the mount of datasets
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1311 * which have a non-default label already. No other label checks
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1312 * are needed.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1313 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1314 if (!is_system_labeled()) {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1315 if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) == 0)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1316 return (0);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1317 return (EACCES);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1318 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1319
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1320 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1321 * Get the label of the mountpoint. If mounting into the global
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1322 * zone (i.e. mountpoint is not within an active zone and the
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1323 * zoned property is off), the label must be default or
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1324 * admin_low/admin_high only; no other checks are needed.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1325 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1326 mntzone = zone_find_by_any_path(refstr_value(vfsp->vfs_mntpt), B_FALSE);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1327 if (mntzone->zone_id == GLOBAL_ZONEID) {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1328 uint64_t zoned;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1329
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1330 zone_rele(mntzone);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1331
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1332 if (dsl_prop_get_integer(osname,
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1333 zfs_prop_to_name(ZFS_PROP_ZONED), &zoned, NULL))
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1334 return (EACCES);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1335 if (!zoned)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1336 return (zfs_check_global_label(osname, ds_hexsl));
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1337 else
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1338 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1339 * This is the case of a zone dataset being mounted
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1340 * initially, before the zone has been fully created;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1341 * allow this mount into global zone.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1342 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1343 return (0);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1344 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1345
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1346 mnt_tsl = mntzone->zone_slabel;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1347 ASSERT(mnt_tsl != NULL);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1348 label_hold(mnt_tsl);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1349 mnt_sl = label2bslabel(mnt_tsl);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1350
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1351 if (strcasecmp(ds_hexsl, ZFS_MLSLABEL_DEFAULT) == 0) {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1352 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1353 * The dataset doesn't have a real label, so fabricate one.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1354 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1355 char *str = NULL;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1356
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1357 if (l_to_str_internal(mnt_sl, &str) == 0 &&
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1358 dsl_prop_set(osname, zfs_prop_to_name(ZFS_PROP_MLSLABEL),
11022 63ab26072e41 PSARC 2009/510 ZFS received properties Tom Erickson <Tom.Erickson@Sun.COM> parents: 10984 diff changeset	1359 ZPROP_SRC_LOCAL, 1, strlen(str) + 1, str) == 0)
10972 807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1360 retv = 0;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1361 if (str != NULL)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1362 kmem_free(str, strlen(str) + 1);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1363 } else if (hexstr_to_label(ds_hexsl, &ds_sl) == 0) {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1364 /*
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1365 * Now compare labels to complete the MAC check. If the
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1366 * labels are equal then allow access. If the mountpoint
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1367 * label dominates the dataset label, allow readonly access.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1368 * Otherwise, access is denied.
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1369 */
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1370 if (blequal(mnt_sl, &ds_sl))
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1371 retv = 0;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1372 else if (bldominates(mnt_sl, &ds_sl)) {
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1373 vfs_setmntopt(vfsp, MNTOPT_RO, NULL, 0);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1374 retv = 0;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1375 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1376 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1377
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1378 label_rele(mnt_tsl);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1379 zone_rele(mntzone);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1380 return (retv);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1381 }
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1382
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1383 static int
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1384 zfs_mountroot(vfs_t *vfsp, enum whymountroot why)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1385 {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1386 int error = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1387 static int zfsrootdone = 0;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1388 zfsvfs_t *zfsvfs = NULL;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1389 znode_t *zp = NULL;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1390 vnode_t *vp = NULL;
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1391 char *zfs_bootfs;
7147 1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1392 char *zfs_devid;
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1393
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1394 ASSERT(vfsp);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1395
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1396 /*
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1397 * The filesystem that we mount as root is defined in the
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1398 * boot property "zfs-bootfs" with a format of
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1399 * "poolname/root-dataset-objnum".
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1400 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1401 if (why == ROOT_INIT) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1402 if (zfsrootdone++)
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1403 return (EBUSY);
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1404 /*
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1405 * the process of doing a spa_load will require the
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1406 * clock to be set before we could (for example) do
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1407 * something better by looking at the timestamp on
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1408 * an uberblock, so just set it to -1.
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1409 */
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1410 clkset(-1);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1411
7147 1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1412 if ((zfs_bootfs = spa_get_bootprop("zfs-bootfs")) == NULL) {
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1413 cmn_err(CE_NOTE, "spa_get_bootfs: can not get "
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1414 "bootfs name");
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1415 return (EINVAL);
5648 161f8007cab9 6521412 PSARC 2006/525: new boot sparc setje parents: 5642 diff changeset	1416 }
7147 1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1417 zfs_devid = spa_get_bootprop("diskdevid");
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1418 error = spa_import_rootpool(rootfs.bo_name, zfs_devid);
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1419 if (zfs_devid)
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1420 spa_free_bootprop(zfs_devid);
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1421 if (error) {
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1422 spa_free_bootprop(zfs_bootfs);
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1423 cmn_err(CE_NOTE, "spa_import_rootpool: error %d",
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1424 error);
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1425 return (error);
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1426 }
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1427 if (error = zfs_parse_bootfs(zfs_bootfs, rootfs.bo_name)) {
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1428 spa_free_bootprop(zfs_bootfs);
1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1429 cmn_err(CE_NOTE, "zfs_parse_bootfs: error %d",
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1430 error);
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1431 return (error);
437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1432 }
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1433
7147 1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1434 spa_free_bootprop(zfs_bootfs);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1435
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1436 if (error = vfs_lock(vfsp))
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1437 return (error);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1438
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6689 diff changeset	1439 if (error = zfs_domount(vfsp, rootfs.bo_name)) {
7147 1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1440 cmn_err(CE_NOTE, "zfs_domount: error %d", error);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1441 goto out;
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1442 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1443
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1444 zfsvfs = (zfsvfs_t *)vfsp->vfs_data;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1445 ASSERT(zfsvfs);
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1446 if (error = zfs_zget(zfsvfs, zfsvfs->z_root, &zp)) {
7147 1e1d75c88283 6704717 ZFS mirrored root doesn't live up to expectations taylor parents: 7046 diff changeset	1447 cmn_err(CE_NOTE, "zfs_zget: error %d", error);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1448 goto out;
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1449 }
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1450
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1451 vp = ZTOV(zp);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1452 mutex_enter(&vp->v_lock);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1453 vp->v_flag \|= VROOT;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1454 mutex_exit(&vp->v_lock);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1455 rootvp = vp;
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1456
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1457 /*
6570 bbfcb773718e 6698415 on zfs root, ace_walk oversteps its bounds, causing panic when kmem_flags is set to 0x4f marks parents: 6423 diff changeset	1458 * Leave rootvp held. The root file system is never unmounted.
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1459 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1460
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1461 vfs_add((struct vnode *)0, vfsp,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1462 (vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1463 out:
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1464 vfs_unlock(vfsp);
6423 437422a29d3a PSARC 2006/370 ZFS Boot Support gw25295 parents: 6404 diff changeset	1465 return (error);
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1466 } else if (why == ROOT_REMOUNT) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1467 readonly_changed_cb(vfsp->vfs_data, B_FALSE);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1468 vfsp->vfs_flag \|= VFS_REMOUNT;
4596 3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1469
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1470 /* refresh mount options */
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1471 zfs_unregister_callbacks(vfsp->vfs_data);
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1472 return (zfs_register_callbacks(vfsp));
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1473
1544 938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1474 } else if (why == ROOT_UNMOUNT) {
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1475 zfs_unregister_callbacks((zfsvfs_t *)vfsp->vfs_data);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1476 (void) zfs_sync(vfsp, 0, 0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1477 return (0);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1478 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1479
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1480 /*
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1481 * if "why" is equal to anything else other than ROOT_INIT,
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1482 * ROOT_REMOUNT, or ROOT_UNMOUNT, we do not support it.
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1483 */
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1484 return (ENOTSUP);
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1485 }
938876158511 PSARC 2006/077 zpool clear eschrock parents: 1488 diff changeset	1486
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1487 /ARGSUSED/
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1488 static int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1489 zfs_mount(vfs_t vfsp, vnode_t mvp, struct mounta uap, cred_t cr)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1490 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1491 char *osname;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1492 pathname_t spn;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1493 int error = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1494 uio_seg_t fromspace = (uap->flags & MS_SYSSPACE) ?
3912 f6891a60bd72 PSARC 2007/083 ZFS bootable datasets lling parents: 3898 diff changeset	1495 UIO_SYSSPACE : UIO_USERSPACE;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1496 int canwrite;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1497
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1498 if (mvp->v_type != VDIR)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1499 return (ENOTDIR);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1500
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1501 mutex_enter(&mvp->v_lock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1502 if ((uap->flags & MS_REMOUNT) == 0 &&
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1503 (uap->flags & MS_OVERLAY) == 0 &&
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1504 (mvp->v_count != 1 \|\| (mvp->v_flag & VROOT))) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1505 mutex_exit(&mvp->v_lock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1506 return (EBUSY);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1507 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1508 mutex_exit(&mvp->v_lock);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1509
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1510 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1511 * ZFS does not support passing unparsed data in via MS_DATA.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1512 * Users should use the MS_OPTIONSTR interface; this means
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1513 * that all option parsing is already done and the options struct
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1514 * can be interrogated.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1515 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1516 if ((uap->flags & MS_DATA) && uap->datalen > 0)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1517 return (EINVAL);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1518
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1519 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1520 * Get the objset name (the "special" mount argument).
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1521 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1522 if (error = pn_get(uap->spec, fromspace, &spn))
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1523 return (error);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1524
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1525 osname = spn.pn_path;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1526
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1527 /*
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1528 * Check for mount privilege?
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1529 *
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1530 * If we don't have privilege then see if
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1531 * we have local permission to allow it
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1532 */
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1533 error = secpolicy_fs_mount(cr, mvp, vfsp);
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1534 if (error) {
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1535 error = dsl_deleg_access(osname, ZFS_DELEG_PERM_MOUNT, cr);
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1536 if (error == 0) {
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1537 vattr_t vattr;
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1538
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1539 /*
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1540 * Make sure user is the owner of the mount point
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1541 * or has sufficient privileges.
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1542 */
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1543
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1544 vattr.va_mask = AT_UID;
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1545
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1546 if (error = VOP_GETATTR(mvp, &vattr, 0, cr, NULL)) {
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1547 goto out;
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1548 }
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1549
5489 25bfaf065197 6601830 mismatch between zfs_mount() behavior and comment marks parents: 5446 diff changeset	1550 if (secpolicy_vnode_owner(cr, vattr.va_uid) != 0 &&
25bfaf065197 6601830 mismatch between zfs_mount() behavior and comment marks parents: 5446 diff changeset	1551 VOP_ACCESS(mvp, VWRITE, 0, cr, NULL) != 0) {
25bfaf065197 6601830 mismatch between zfs_mount() behavior and comment marks parents: 5446 diff changeset	1552 error = EPERM;
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1553 goto out;
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1554 }
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1555
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1556 secpolicy_fs_mount_clearopts(cr, vfsp);
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1557 } else {
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1558 goto out;
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1559 }
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1560 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1561
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1562 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1563 * Refuse to mount a filesystem if we are in a local zone and the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1564 * dataset is not visible.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1565 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1566 if (!INGLOBALZONE(curproc) &&
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1567 (!zone_dataset_visible(osname, &canwrite) \|\| !canwrite)) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1568 error = EPERM;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1569 goto out;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1570 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1571
10972 807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1572 error = zfs_mount_label_policy(vfsp, osname);
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1573 if (error)
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1574 goto out;
807794d41b3a PSARC 2009/348 Security Labels for ZFS Ric Aleshire <Ric.Aleshire@Sun.COM> parents: 10793 diff changeset	1575
4596 3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1576 /*
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1577 * When doing a remount, we simply refresh our temporary properties
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1578 * according to those options set in the current VFS options.
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1579 */
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1580 if (uap->flags & MS_REMOUNT) {
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1581 /* refresh mount options */
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1582 zfs_unregister_callbacks(vfsp->vfs_data);
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1583 error = zfs_register_callbacks(vfsp);
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1584 goto out;
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1585 }
3aa6e3b5dfca 6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output lling parents: 4577 diff changeset	1586
7046 361307ae060d 6343667 scrub/resilver has to start over when a snapshot is taken ahrens parents: 6689 diff changeset	1587 error = zfs_domount(vfsp, osname);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1588
9214 8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	1589 /*
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	1590 * Add an extra VFS_HOLD on our parent vfs so that it can't
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	1591 * disappear due to a forced unmount.
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	1592 */
9246 67c03c93c071 6824062 System panicked in zfs_mount due to NULL pointer dereference when running btts and svvs tests Chris Kirby <chris.kirby@sun.com> parents: 9234 diff changeset	1593 if (error == 0 && ((zfsvfs_t *)vfsp->vfs_data)->z_issnap)
9214 8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	1594 VFS_HOLD(mvp->v_vfsp);
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	1595
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1596 out:
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1597 pn_free(&spn);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1598 return (error);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1599 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1600
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1601 static int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1602 zfs_statvfs(vfs_t vfsp, struct statvfs64 statp)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1603 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1604 zfsvfs_t *zfsvfs = vfsp->vfs_data;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1605 dev32_t d32;
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1606 uint64_t refdbytes, availbytes, usedobjs, availobjs;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1607
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1608 ZFS_ENTER(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1609
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1610 dmu_objset_space(zfsvfs->z_os,
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1611 &refdbytes, &availbytes, &usedobjs, &availobjs);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1612
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1613 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1614 * The underlying storage pool actually uses multiple block sizes.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1615 * We report the fragsize as the smallest block size we support,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1616 * and we report our blocksize as the filesystem's maximum blocksize.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1617 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1618 statp->f_frsize = 1UL << SPA_MINBLOCKSHIFT;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1619 statp->f_bsize = zfsvfs->z_max_blksz;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1620
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1621 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1622 * The following report "total" blocks of various kinds in the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1623 * file system, but reported in terms of f_frsize - the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1624 * "fragment" size.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1625 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1626
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1627 statp->f_blocks = (refdbytes + availbytes) >> SPA_MINBLOCKSHIFT;
c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1628 statp->f_bfree = availbytes >> SPA_MINBLOCKSHIFT;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1629 statp->f_bavail = statp->f_bfree; /* no root reservation */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1630
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1631 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1632 * statvfs() should really be called statufs(), because it assumes
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1633 * static metadata. ZFS doesn't preallocate files, so the best
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1634 * we can do is report the max that could possibly fit in f_files,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1635 * and that minus the number actually used in f_ffree.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1636 * For f_ffree, report the smaller of the number of object available
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1637 * and the number of blocks (each object will take at least a block).
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1638 */
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1639 statp->f_ffree = MIN(availobjs, statp->f_bfree);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1640 statp->f_favail = statp->f_ffree; /* no "root reservation" */
2885 c0259887ebbc 6460059 zfs destroy <snapshot> leaves behind kruft ahrens parents: 2676 diff changeset	1641 statp->f_files = statp->f_ffree + usedobjs;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1642
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1643 (void) cmpldev(&d32, vfsp->vfs_dev);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1644 statp->f_fsid = d32;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1645
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1646 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1647 * We're a zfs filesystem.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1648 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1649 (void) strcpy(statp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1650
1123 02a0390fbc7d 6363529 UNIX03/UNIX98 vsx CAPI.os/files/fstatvfs/T.fstatvfs 11 FAILS marks parents: 849 diff changeset	1651 statp->f_flag = vf_to_stf(vfsp->vfs_flag);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1652
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1653 statp->f_namemax = ZFS_MAXNAMELEN;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1654
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1655 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1656 * We have all of 32 characters to stuff a string here.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1657 * Is there anything useful we could/should provide?
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1658 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1659 bzero(statp->f_fstr, sizeof (statp->f_fstr));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1660
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1661 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1662 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1663 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1664
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1665 static int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1666 zfs_root(vfs_t vfsp, vnode_t *vpp)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1667 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1668 zfsvfs_t *zfsvfs = vfsp->vfs_data;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1669 znode_t *rootzp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1670 int error;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1671
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1672 ZFS_ENTER(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1673
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1674 error = zfs_zget(zfsvfs, zfsvfs->z_root, &rootzp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1675 if (error == 0)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1676 *vpp = ZTOV(rootzp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1677
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1678 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1679 return (error);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1680 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1681
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1682 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1683 * Teardown the zfsvfs::z_os.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1684 *
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1685 * Note, if 'unmounting' if FALSE, we return with the 'z_teardown_lock'
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1686 * and 'z_teardown_inactive_lock' held.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1687 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1688 static int
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1689 zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1690 {
5642 504c84876fda 6513209 Destroying pools under stress caused a hang in arc_flush maybee parents: 5498 diff changeset	1691 znode_t *zp;
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1692
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1693 rrw_enter(&zfsvfs->z_teardown_lock, RW_WRITER, FTAG);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1694
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1695 if (!unmounting) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1696 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1697 * We purge the parent filesystem's vfsp as the parent
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1698 * filesystem and all of its snapshots have their vnode's
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1699 * v_vfsp set to the parent's filesystem's vfsp. Note,
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1700 * 'z_parent' is self referential for non-snapshots.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1701 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1702 (void) dnlc_purge_vfsp(zfsvfs->z_parent->z_vfs, 0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1703 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1704
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1705 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1706 * Close the zil. NB: Can't close the zil while zfs_inactive
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1707 * threads are blocked as zil_close can call zfs_inactive.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1708 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1709 if (zfsvfs->z_log) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1710 zil_close(zfsvfs->z_log);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1711 zfsvfs->z_log = NULL;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1712 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1713
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1714 rw_enter(&zfsvfs->z_teardown_inactive_lock, RW_WRITER);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1715
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1716 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1717 * If we are not unmounting (ie: online recv) and someone already
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1718 * unmounted this file system while we were doing the switcheroo,
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1719 * or a reopen of z_os failed then just bail out now.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1720 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1721 if (!unmounting && (zfsvfs->z_unmounted \|\| zfsvfs->z_os == NULL)) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1722 rw_exit(&zfsvfs->z_teardown_inactive_lock);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1723 rrw_exit(&zfsvfs->z_teardown_lock, FTAG);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1724 return (EIO);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1725 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1726
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1727 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1728 * At this point there are no vops active, and any new vops will
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1729 * fail with EIO since we have z_teardown_lock for writer (only
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1730 * relavent for forced unmount).
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1731 *
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1732 * Release all holds on dbufs.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1733 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1734 mutex_enter(&zfsvfs->z_znodes_lock);
5642 504c84876fda 6513209 Destroying pools under stress caused a hang in arc_flush maybee parents: 5498 diff changeset	1735 for (zp = list_head(&zfsvfs->z_all_znodes); zp != NULL;
504c84876fda 6513209 Destroying pools under stress caused a hang in arc_flush maybee parents: 5498 diff changeset	1736 zp = list_next(&zfsvfs->z_all_znodes, zp))
5446 51fbc14b301d 6421210 zfs rollback without unmounting ahrens parents: 5429 diff changeset	1737 if (zp->z_dbuf) {
5642 504c84876fda 6513209 Destroying pools under stress caused a hang in arc_flush maybee parents: 5498 diff changeset	1738 ASSERT(ZTOV(zp)->v_count > 0);
504c84876fda 6513209 Destroying pools under stress caused a hang in arc_flush maybee parents: 5498 diff changeset	1739 zfs_znode_dmu_fini(zp);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1740 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1741 mutex_exit(&zfsvfs->z_znodes_lock);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1742
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1743 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1744 * If we are unmounting, set the unmounted flag and let new vops
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1745 * unblock. zfs_inactive will have the unmounted behavior, and all
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1746 * other vops will fail with EIO.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1747 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1748 if (unmounting) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1749 zfsvfs->z_unmounted = B_TRUE;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1750 rrw_exit(&zfsvfs->z_teardown_lock, FTAG);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1751 rw_exit(&zfsvfs->z_teardown_inactive_lock);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1752 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1753
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1754 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1755 * z_os will be NULL if there was an error in attempting to reopen
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1756 * zfsvfs, so just return as the properties had already been
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1757 * unregistered and cached data had been evicted before.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1758 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1759 if (zfsvfs->z_os == NULL)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1760 return (0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1761
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1762 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1763 * Unregister properties.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1764 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1765 zfs_unregister_callbacks(zfsvfs);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1766
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1767 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1768 * Evict cached data
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1769 */
6083 23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1770 if (dmu_objset_evict_dbufs(zfsvfs->z_os)) {
5429 f0cb3b884d95 6597432 cannot rename filesystem and return busy at the first time maybee parents: 5331 diff changeset	1771 txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0);
6083 23e77aa611b1 6655963 Panic: 0 == zap_add(mos, pds->dd_phys->dd_child_dir_zapobj, name, sizeof (uint64_t), 1, &ddobj, tx) ek110237 parents: 5648 diff changeset	1772 (void) dmu_objset_evict_dbufs(zfsvfs->z_os);
5429 f0cb3b884d95 6597432 cannot rename filesystem and return busy at the first time maybee parents: 5331 diff changeset	1773 }
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1774
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1775 return (0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1776 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1777
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1778 /ARGSUSED/
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1779 static int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1780 zfs_umount(vfs_t vfsp, int fflag, cred_t cr)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1781 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1782 zfsvfs_t *zfsvfs = vfsp->vfs_data;
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1783 objset_t *os;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1784 int ret;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1785
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1786 ret = secpolicy_fs_unmount(cr, vfsp);
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1787 if (ret) {
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1788 ret = dsl_deleg_access((char *)refstr_value(vfsp->vfs_resource),
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1789 ZFS_DELEG_PERM_MOUNT, cr);
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1790 if (ret)
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1791 return (ret);
12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1792 }
1484 d330e98f8ed7 6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS ek110237 parents: 1298 diff changeset	1793
4736 f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1794 /*
f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1795 * We purge the parent filesystem's vfsp as the parent filesystem
f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1796 * and all of its snapshots have their vnode's v_vfsp set to the
f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1797 * parent's filesystem's vfsp. Note, 'z_parent' is self
f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1798 * referential for non-snapshots.
f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1799 */
f8714efb3e12 6509628 unmount of a snapshot (from 'zfs destroy') is slow ek110237 parents: 4614 diff changeset	1800 (void) dnlc_purge_vfsp(zfsvfs->z_parent->z_vfs, 0);
1484 d330e98f8ed7 6350001 ZFS lookup performance still much slower than UFS : help tar : help spec SFS ek110237 parents: 1298 diff changeset	1801
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1802 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1803 * Unmount any snapshots mounted under .zfs before unmounting the
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1804 * dataset itself.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1805 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1806 if (zfsvfs->z_ctldir != NULL &&
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1807 (ret = zfsctl_umount_snapshots(vfsp, fflag, cr)) != 0) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1808 return (ret);
4543 12bb2876a62e PSARC/2006/465 ZFS Delegated Administration marks parents: 4480 diff changeset	1809 }
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1810
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1811 if (!(fflag & MS_FORCE)) {
4480 0976678e58c5 6544140 assertion failed: err == 0 (0x11 == 0x0), file: ../../common/fs/zfs/zfs_znode.c, line: 555 gw25295 parents: 3912 diff changeset	1812 /*
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1813 * Check the number of active vnodes in the file system.
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1814 * Our count is maintained in the vfs structure, but the
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1815 * number is off by 1 to indicate a hold on the vfs
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1816 * structure itself.
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1817 *
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1818 * The '.zfs' directory maintains a reference of its
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1819 * own, and any active references underneath are
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1820 * reflected in the vnode count.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1821 */
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1822 if (zfsvfs->z_ctldir == NULL) {
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1823 if (vfsp->vfs_count > 1)
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1824 return (EBUSY);
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1825 } else {
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1826 if (vfsp->vfs_count > 2 \|\|
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1827 zfsvfs->z_ctldir->v_count > 1)
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1828 return (EBUSY);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1829 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1830 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1831
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1832 vfsp->vfs_flag \|= VFS_UNMOUNTED;
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1833
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1834 VERIFY(zfsvfs_teardown(zfsvfs, B_TRUE) == 0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1835 os = zfsvfs->z_os;
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1836
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1837 /*
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1838 * z_os will be NULL if there was an error in
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1839 * attempting to reopen zfsvfs.
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1840 */
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1841 if (os != NULL) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1842 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1843 * Unset the objset user_ptr.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1844 */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1845 mutex_enter(&os->os_user_ptr_lock);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1846 dmu_objset_set_user(os, NULL);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1847 mutex_exit(&os->os_user_ptr_lock);
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1848
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1849 /*
6689 47572a2f5e73 6610506 Eliminate or improve retry logic from callers of dmu_objset_open() maybee parents: 6570 diff changeset	1850 * Finally release the objset
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1851 */
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1852 dmu_objset_disown(os, zfsvfs);
4787 602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1853 }
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1854
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1855 /*
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1856 * We can now safely destroy the '.zfs' directory node.
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1857 */
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1858 if (zfsvfs->z_ctldir != NULL)
602d3f97842c 6393351 unique_* could be improved ahrens parents: 4736 diff changeset	1859 zfsctl_destroy(zfsvfs);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1860
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1861 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1862 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1863
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1864 static int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1865 zfs_vget(vfs_t vfsp, vnode_t vpp, fid_t fidp)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1866 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1867 zfsvfs_t *zfsvfs = vfsp->vfs_data;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1868 znode_t *zp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1869 uint64_t object = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1870 uint64_t fid_gen = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1871 uint64_t gen_mask;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1872 uint64_t zp_gen;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1873 int i, err;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1874
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1875 *vpp = NULL;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1876
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1877 ZFS_ENTER(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1878
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1879 if (fidp->fid_len == LONG_FID_LEN) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1880 zfid_long_t zlfid = (zfid_long_t )fidp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1881 uint64_t objsetid = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1882 uint64_t setgen = 0;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1883
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1884 for (i = 0; i < sizeof (zlfid->zf_setid); i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1885 objsetid \|= ((uint64_t)zlfid->zf_setid[i]) << (8 * i);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1886
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1887 for (i = 0; i < sizeof (zlfid->zf_setgen); i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1888 setgen \|= ((uint64_t)zlfid->zf_setgen[i]) << (8 * i);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1889
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1890 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1891
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1892 err = zfsctl_lookup_objset(vfsp, objsetid, &zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1893 if (err)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1894 return (EINVAL);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1895 ZFS_ENTER(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1896 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1897
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1898 if (fidp->fid_len == SHORT_FID_LEN \|\| fidp->fid_len == LONG_FID_LEN) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1899 zfid_short_t zfid = (zfid_short_t )fidp;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1900
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1901 for (i = 0; i < sizeof (zfid->zf_object); i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1902 object \|= ((uint64_t)zfid->zf_object[i]) << (8 * i);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1903
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1904 for (i = 0; i < sizeof (zfid->zf_gen); i++)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1905 fid_gen \|= ((uint64_t)zfid->zf_gen[i]) << (8 * i);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1906 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1907 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1908 return (EINVAL);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1909 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1910
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1911 /* A zero fid_gen means we are in the .zfs control directories */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1912 if (fid_gen == 0 &&
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1913 (object == ZFSCTL_INO_ROOT \|\| object == ZFSCTL_INO_SNAPDIR)) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1914 *vpp = zfsvfs->z_ctldir;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1915 ASSERT(*vpp != NULL);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1916 if (object == ZFSCTL_INO_SNAPDIR) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1917 VERIFY(zfsctl_root_lookup(*vpp, "snapshot", vpp, NULL,
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	1918 0, NULL, NULL, NULL, NULL, NULL) == 0);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1919 } else {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1920 VN_HOLD(*vpp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1921 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1922 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1923 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1924 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1925
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1926 gen_mask = -1ULL >> (64 - 8 * i);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1927
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1928 dprintf("getting %llu [%u mask %llx]\n", object, fid_gen, gen_mask);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1929 if (err = zfs_zget(zfsvfs, object, &zp)) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1930 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1931 return (err);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1932 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1933 zp_gen = zp->z_phys->zp_gen & gen_mask;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1934 if (zp_gen == 0)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1935 zp_gen = 1;
3461 c19b22f347d6 6514331 in-memory delete queue is not needed ahrens parents: 3265 diff changeset	1936 if (zp->z_unlinked \|\| zp_gen != fid_gen) {
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1937 dprintf("znode gen (%u) != fid gen (%u)\n", zp_gen, fid_gen);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1938 VN_RELE(ZTOV(zp));
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1939 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1940 return (EINVAL);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1941 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1942
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1943 *vpp = ZTOV(zp);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1944 ZFS_EXIT(zfsvfs);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1945 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1946 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	1947
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1948 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1949 * Block out VOPs and close zfsvfs_t::z_os
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1950 *
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1951 * Note, if successful, then we return with the 'z_teardown_lock' and
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1952 * 'z_teardown_inactive_lock' write held.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1953 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1954 int
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1955 zfs_suspend_fs(zfsvfs_t *zfsvfs)
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1956 {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1957 int error;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1958
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1959 if ((error = zfsvfs_teardown(zfsvfs, B_FALSE)) != 0)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1960 return (error);
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1961 dmu_objset_disown(zfsvfs->z_os, zfsvfs);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1962
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1963 return (0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1964 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1965
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1966 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1967 * Reopen zfsvfs_t::z_os and release VOPs.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1968 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1969 int
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1970 zfs_resume_fs(zfsvfs_t zfsvfs, const char osname)
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1971 {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1972 int err;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1973
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1974 ASSERT(RRW_WRITE_HELD(&zfsvfs->z_teardown_lock));
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1975 ASSERT(RW_WRITE_HELD(&zfsvfs->z_teardown_inactive_lock));
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1976
10298 a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1977 err = dmu_objset_own(osname, DMU_OST_ZFS, B_FALSE, zfsvfs,
a0d52501437c 6860996 %temporary clones are not automatically destroyed on error Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 10204 diff changeset	1978 &zfsvfs->z_os);
5326 6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1979 if (err) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1980 zfsvfs->z_os = NULL;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1981 } else {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1982 znode_t *zp;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1983
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1984 VERIFY(zfsvfs_setup(zfsvfs, B_FALSE) == 0);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1985
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1986 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1987 * Attempt to re-establish all the active znodes with
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1988 * their dbufs. If a zfs_rezget() fails, then we'll let
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1989 * any potential callers discover that via ZFS_ENTER_VERIFY_VP
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1990 * when they try to use their znode.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1991 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1992 mutex_enter(&zfsvfs->z_znodes_lock);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1993 for (zp = list_head(&zfsvfs->z_all_znodes); zp;
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1994 zp = list_next(&zfsvfs->z_all_znodes, zp)) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1995 (void) zfs_rezget(zp);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1996 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1997 mutex_exit(&zfsvfs->z_znodes_lock);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1998
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	1999 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2000
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2001 /* release the VOPs */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2002 rw_exit(&zfsvfs->z_teardown_inactive_lock);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2003 rrw_exit(&zfsvfs->z_teardown_lock, FTAG);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2004
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2005 if (err) {
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2006 /*
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2007 * Since we couldn't reopen zfsvfs::z_os, force
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2008 * unmount this file system.
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2009 */
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2010 if (vn_vfswlock(zfsvfs->z_vfs->vfs_vnodecovered) == 0)
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2011 (void) dounmount(zfsvfs->z_vfs, MS_FORCE, CRED());
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2012 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2013 return (err);
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2014 }
6752aa2bd5bc 6425096 want online 'zfs recv' (read only and read/write) ek110237 parents: 5147 diff changeset	2015
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2016 static void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2017 zfs_freevfs(vfs_t *vfsp)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2018 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2019 zfsvfs_t *zfsvfs = vfsp->vfs_data;
9214 8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2020
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2021 /*
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2022 * If this is a snapshot, we have an extra VFS_HOLD on our parent
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2023 * from zfs_mount(). Release it here.
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2024 */
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2025 if (zfsvfs->z_issnap)
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2026 VFS_RELE(zfsvfs->z_parent->z_vfs);
8d350e5d04aa 6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy Chris Kirby <chris.kirby@sun.com> parents: 9179 diff changeset	2027
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2028 zfsvfs_free(zfsvfs);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2029
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2030 atomic_add_32(&zfs_active_fs_count, -1);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2031 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2032
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2033 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2034 * VFS_INIT() initialization. Note that there is no VFS_FINI(),
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2035 * so we can't safely do any non-idempotent initialization here.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2036 * Leave that to zfs_init() and zfs_fini(), which are called
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2037 * from the module's _init() and _fini() entry points.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2038 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2039 /ARGSUSED/
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2040 static int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2041 zfs_vfsinit(int fstype, char *name)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2042 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2043 int error;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2044
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2045 zfsfstype = fstype;
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2046
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2047 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2048 * Setup vfsops and vnodeops tables.
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2049 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2050 error = vfs_setfsops(fstype, zfs_vfsops_template, &zfs_vfsops);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2051 if (error != 0) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2052 cmn_err(CE_WARN, "zfs: bad vfs ops template");
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2053 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2054
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2055 error = zfs_create_op_tables();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2056 if (error) {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2057 zfs_remove_op_tables();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2058 cmn_err(CE_WARN, "zfs: bad vnode ops template");
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2059 (void) vfs_freevfsops_by_type(zfsfstype);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2060 return (error);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2061 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2062
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2063 mutex_init(&zfs_dev_mtx, NULL, MUTEX_DEFAULT, NULL);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2064
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2065 /*
849 8d799fd81a9b 6345023 /dev/zfs fails to open once ZFS module is unloaded bonwick parents: 789 diff changeset	2066 * Unique major number for all zfs mounts.
8d799fd81a9b 6345023 /dev/zfs fails to open once ZFS module is unloaded bonwick parents: 789 diff changeset	2067 * If we run out of 32-bit minors, we'll getudev() another major.
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2068 */
849 8d799fd81a9b 6345023 /dev/zfs fails to open once ZFS module is unloaded bonwick parents: 789 diff changeset	2069 zfs_major = ddi_name_to_major(ZFS_DRIVER);
8d799fd81a9b 6345023 /dev/zfs fails to open once ZFS module is unloaded bonwick parents: 789 diff changeset	2070 zfs_minor = ZFS_MIN_MINOR;
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2071
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2072 return (0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2073 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2074
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2075 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2076 zfs_init(void)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2077 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2078 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2079 * Initialize .zfs directory structures
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2080 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2081 zfsctl_init();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2082
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2083 /*
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2084 * Initialize znode cache, vnode ops, etc...
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2085 */
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2086 zfs_znode_init();
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2087
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2088 dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb);
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2089 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2090
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2091 void
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2092 zfs_fini(void)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2093 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2094 zfsctl_fini();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2095 zfs_znode_fini();
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2096 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2097
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2098 int
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2099 zfs_busy(void)
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2100 {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2101 return (zfs_active_fs_count != 0);
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2102 }
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2103
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2104 int
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2105 zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2106 {
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2107 int error;
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2108 objset_t *os = zfsvfs->z_os;
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2109 dmu_tx_t *tx;
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2110
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2111 if (newvers < ZPL_VERSION_INITIAL \|\| newvers > ZPL_VERSION)
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2112 return (EINVAL);
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2113
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2114 if (newvers < zfsvfs->z_version)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2115 return (EINVAL);
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2116
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2117 tx = dmu_tx_create(os);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2118 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_FALSE, ZPL_VERSION_STR);
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2119 error = dmu_tx_assign(tx, TXG_WAIT);
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2120 if (error) {
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2121 dmu_tx_abort(tx);
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2122 return (error);
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2123 }
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2124 error = zap_update(os, MASTER_NODE_OBJ, ZPL_VERSION_STR,
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2125 8, 1, &newvers, tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2126
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2127 if (error) {
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2128 dmu_tx_commit(tx);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2129 return (error);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2130 }
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2131
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2132 spa_history_internal_log(LOG_DS_UPGRADE,
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2133 dmu_objset_spa(os), tx, CRED(),
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2134 "oldver=%llu newver=%llu dataset = %llu",
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2135 zfsvfs->z_version, newvers, dmu_objset_id(os));
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2136
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2137 dmu_tx_commit(tx);
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2138
9396 f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2139 zfsvfs->z_version = newvers;
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2140
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2141 if (zfsvfs->z_version >= ZPL_VERSION_FUID)
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2142 zfs_set_fuid_feature(zfsvfs);
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2143
f41cf682d0d3 PSARC/2009/204 ZFS user/group quotas & space accounting Matthew Ahrens <Matthew.Ahrens@Sun.COM> parents: 9292 diff changeset	2144 return (0);
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2145 }
ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2146
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2147 /*
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2148 * Read a property stored within the master node.
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2149 */
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2150 int
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2151 zfs_get_zplprop(objset_t os, zfs_prop_t prop, uint64_t value)
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2152 {
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2153 const char *pname;
7184 9508660f9c27 PSARC 2008/223 Pool root file system properties via zpool(1M) timh parents: 7147 diff changeset	2154 int error = ENOENT;
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2155
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2156 /*
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2157 * Look up the file system's value for the property. For the
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2158 * version property, we look up a slightly different string.
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2159 */
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2160 if (prop == ZFS_PROP_VERSION)
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2161 pname = ZPL_VERSION_STR;
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2162 else
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2163 pname = zfs_prop_to_name(prop);
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2164
7184 9508660f9c27 PSARC 2008/223 Pool root file system properties via zpool(1M) timh parents: 7147 diff changeset	2165 if (os != NULL)
9508660f9c27 PSARC 2008/223 Pool root file system properties via zpool(1M) timh parents: 7147 diff changeset	2166 error = zap_lookup(os, MASTER_NODE_OBJ, pname, 8, 1, value);
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2167
6404 6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2168 if (error == ENOENT) {
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2169 /* No value set, use the default value */
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2170 switch (prop) {
6404 6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2171 case ZFS_PROP_VERSION:
6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2172 *value = ZPL_VERSION;
6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2173 break;
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2174 case ZFS_PROP_NORMALIZE:
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2175 case ZFS_PROP_UTF8ONLY:
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2176 *value = 0;
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2177 break;
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2178 case ZFS_PROP_CASE:
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2179 *value = ZFS_CASE_SENSITIVE;
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2180 break;
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2181 default:
6404 6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2182 return (error);
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2183 }
6404 6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2184 error = 0;
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2185 }
6404 6377536e1718 6668659 zfs send/recv loses properties maybee parents: 6083 diff changeset	2186 return (error);
5498 334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2187 }
334b476844ca 6622831 normalization properties are not preserved by "zfs send" timh parents: 5489 diff changeset	2188
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2189 static vfsdef_t vfw = {
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2190 VFSDEF_VERSION,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2191 MNTTYPE_ZFS,
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2192 zfs_vfsinit,
5331 3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	2193 VSW_HASPROTO\|VSW_CANRWRO\|VSW_CANREMOUNT\|VSW_VOLATILEDEV\|VSW_STATS\|
3047ad28a67b PSARC/2007/218 caller_context_t in all VOPs amw parents: 5326 diff changeset	2194 VSW_XID,
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2195 &zfs_mntopts
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2196 };
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2197
b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2198 struct modlfs zfs_modlfs = {
4577 ed36b0e652bc PSARC/2007/328 zfs upgrade ahrens parents: 4543 diff changeset	2199 &mod_fsops, "ZFS filesystem version " SPA_VERSION_STRING, &vfw
789 b348f31ed315 PSARC 2002/240 ZFS ahrens parents: diff changeset	2200 };

Mercurial > illumos > illumos-gate

annotate usr/src/uts/common/fs/zfs/zfs_vfsops.c @ 11022:63ab26072e41