Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/zfs_vfsops.c @ 13952:7a22d0770fc8
3522 zfs module should not allow uninitialized variables
Reviewed by: Sebastien Roy <seb@delphix.com>
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>
author | George Wilson <george.wilson@delphix.com> |
---|---|
date | Sun, 10 Feb 2013 22:21:05 -0800 |
parents | eea81edc4f14 |
children | 4972ab336f54 |
rev | line source |
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789 | 1 /* |
2 * CDDL HEADER START | |
3 * | |
4 * The contents of this file are subject to the terms of the | |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
789 | 7 * |
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 * or http://www.opensolaris.org/os/licensing. | |
10 * See the License for the specific language governing permissions | |
11 * and limitations under the License. | |
12 * | |
13 * When distributing Covered Code, include this CDDL HEADER in each | |
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 * If applicable, add the following below this CDDL HEADER, with the | |
16 * fields enclosed by brackets "[]" replaced with your own identifying | |
17 * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 * | |
19 * CDDL HEADER END | |
20 */ | |
21 /* | |
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22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
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23 * Copyright (c) 2012 by Delphix. All rights reserved. |
789 | 24 */ |
25 | |
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26 /* Portions Copyright 2010 Robert Milkowski */ |
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27 |
789 | 28 #include <sys/types.h> |
29 #include <sys/param.h> | |
30 #include <sys/systm.h> | |
31 #include <sys/sysmacros.h> | |
32 #include <sys/kmem.h> | |
33 #include <sys/pathname.h> | |
34 #include <sys/vnode.h> | |
35 #include <sys/vfs.h> | |
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36 #include <sys/vfs_opreg.h> |
789 | 37 #include <sys/mntent.h> |
38 #include <sys/mount.h> | |
39 #include <sys/cmn_err.h> | |
40 #include "fs/fs_subr.h" | |
41 #include <sys/zfs_znode.h> | |
3461 | 42 #include <sys/zfs_dir.h> |
789 | 43 #include <sys/zil.h> |
44 #include <sys/fs/zfs.h> | |
45 #include <sys/dmu.h> | |
46 #include <sys/dsl_prop.h> | |
3912 | 47 #include <sys/dsl_dataset.h> |
4543 | 48 #include <sys/dsl_deleg.h> |
789 | 49 #include <sys/spa.h> |
50 #include <sys/zap.h> | |
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51 #include <sys/sa.h> |
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52 #include <sys/sa_impl.h> |
789 | 53 #include <sys/varargs.h> |
54 #include <sys/policy.h> | |
55 #include <sys/atomic.h> | |
56 #include <sys/mkdev.h> | |
57 #include <sys/modctl.h> | |
4543 | 58 #include <sys/refstr.h> |
789 | 59 #include <sys/zfs_ioctl.h> |
60 #include <sys/zfs_ctldir.h> | |
5331 | 61 #include <sys/zfs_fuid.h> |
1544 | 62 #include <sys/bootconf.h> |
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63 #include <sys/sunddi.h> |
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64 #include <sys/dnlc.h> |
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65 #include <sys/dmu_objset.h> |
6423 | 66 #include <sys/spa_boot.h> |
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67 #include "zfs_comutil.h" |
789 | 68 |
69 int zfsfstype; | |
70 vfsops_t *zfs_vfsops = NULL; | |
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71 static major_t zfs_major; |
789 | 72 static minor_t zfs_minor; |
73 static kmutex_t zfs_dev_mtx; | |
74 | |
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75 extern int sys_shutdown; |
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76 |
789 | 77 static int zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr); |
78 static int zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr); | |
1544 | 79 static int zfs_mountroot(vfs_t *vfsp, enum whymountroot); |
789 | 80 static int zfs_root(vfs_t *vfsp, vnode_t **vpp); |
81 static int zfs_statvfs(vfs_t *vfsp, struct statvfs64 *statp); | |
82 static int zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp); | |
83 static void zfs_freevfs(vfs_t *vfsp); | |
84 | |
85 static const fs_operation_def_t zfs_vfsops_template[] = { | |
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86 VFSNAME_MOUNT, { .vfs_mount = zfs_mount }, |
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87 VFSNAME_MOUNTROOT, { .vfs_mountroot = zfs_mountroot }, |
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88 VFSNAME_UNMOUNT, { .vfs_unmount = zfs_umount }, |
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89 VFSNAME_ROOT, { .vfs_root = zfs_root }, |
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90 VFSNAME_STATVFS, { .vfs_statvfs = zfs_statvfs }, |
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91 VFSNAME_SYNC, { .vfs_sync = zfs_sync }, |
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92 VFSNAME_VGET, { .vfs_vget = zfs_vget }, |
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93 VFSNAME_FREEVFS, { .vfs_freevfs = zfs_freevfs }, |
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94 NULL, NULL |
789 | 95 }; |
96 | |
97 static const fs_operation_def_t zfs_vfsops_eio_template[] = { | |
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98 VFSNAME_FREEVFS, { .vfs_freevfs = zfs_freevfs }, |
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99 NULL, NULL |
789 | 100 }; |
101 | |
102 /* | |
103 * We need to keep a count of active fs's. | |
104 * This is necessary to prevent our module | |
105 * from being unloaded after a umount -f | |
106 */ | |
107 static uint32_t zfs_active_fs_count = 0; | |
108 | |
109 static char *noatime_cancel[] = { MNTOPT_ATIME, NULL }; | |
110 static char *atime_cancel[] = { MNTOPT_NOATIME, NULL }; | |
3234 | 111 static char *noxattr_cancel[] = { MNTOPT_XATTR, NULL }; |
112 static char *xattr_cancel[] = { MNTOPT_NOXATTR, NULL }; | |
789 | 113 |
3234 | 114 /* |
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115 * MO_DEFAULT is not used since the default value is determined |
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116 * by the equivalent property. |
3234 | 117 */ |
789 | 118 static mntopt_t mntopts[] = { |
3234 | 119 { MNTOPT_NOXATTR, noxattr_cancel, NULL, 0, NULL }, |
120 { MNTOPT_XATTR, xattr_cancel, NULL, 0, NULL }, | |
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121 { MNTOPT_NOATIME, noatime_cancel, NULL, 0, NULL }, |
789 | 122 { MNTOPT_ATIME, atime_cancel, NULL, 0, NULL } |
123 }; | |
124 | |
125 static mntopts_t zfs_mntopts = { | |
126 sizeof (mntopts) / sizeof (mntopt_t), | |
127 mntopts | |
128 }; | |
129 | |
130 /*ARGSUSED*/ | |
131 int | |
132 zfs_sync(vfs_t *vfsp, short flag, cred_t *cr) | |
133 { | |
134 /* | |
135 * Data integrity is job one. We don't want a compromised kernel | |
136 * writing to the storage pool, so we never sync during panic. | |
137 */ | |
138 if (panicstr) | |
139 return (0); | |
140 | |
141 /* | |
142 * SYNC_ATTR is used by fsflush() to force old filesystems like UFS | |
143 * to sync metadata, which they would otherwise cache indefinitely. | |
144 * Semantically, the only requirement is that the sync be initiated. | |
145 * The DMU syncs out txgs frequently, so there's nothing to do. | |
146 */ | |
147 if (flag & SYNC_ATTR) | |
148 return (0); | |
149 | |
150 if (vfsp != NULL) { | |
151 /* | |
152 * Sync a specific filesystem. | |
153 */ | |
154 zfsvfs_t *zfsvfs = vfsp->vfs_data; | |
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155 dsl_pool_t *dp; |
789 | 156 |
157 ZFS_ENTER(zfsvfs); | |
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158 dp = dmu_objset_pool(zfsvfs->z_os); |
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159 |
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160 /* |
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161 * If the system is shutting down, then skip any |
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162 * filesystems which may exist on a suspended pool. |
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163 */ |
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164 if (sys_shutdown && spa_suspended(dp->dp_spa)) { |
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165 ZFS_EXIT(zfsvfs); |
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166 return (0); |
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167 } |
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168 |
789 | 169 if (zfsvfs->z_log != NULL) |
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170 zil_commit(zfsvfs->z_log, 0); |
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171 |
789 | 172 ZFS_EXIT(zfsvfs); |
173 } else { | |
174 /* | |
175 * Sync all ZFS filesystems. This is what happens when you | |
176 * run sync(1M). Unlike other filesystems, ZFS honors the | |
177 * request by waiting for all pools to commit all dirty data. | |
178 */ | |
179 spa_sync_allpools(); | |
180 } | |
181 | |
182 return (0); | |
183 } | |
184 | |
1544 | 185 static int |
186 zfs_create_unique_device(dev_t *dev) | |
187 { | |
188 major_t new_major; | |
189 | |
190 do { | |
191 ASSERT3U(zfs_minor, <=, MAXMIN32); | |
192 minor_t start = zfs_minor; | |
193 do { | |
194 mutex_enter(&zfs_dev_mtx); | |
195 if (zfs_minor >= MAXMIN32) { | |
196 /* | |
197 * If we're still using the real major | |
198 * keep out of /dev/zfs and /dev/zvol minor | |
199 * number space. If we're using a getudev()'ed | |
200 * major number, we can use all of its minors. | |
201 */ | |
202 if (zfs_major == ddi_name_to_major(ZFS_DRIVER)) | |
203 zfs_minor = ZFS_MIN_MINOR; | |
204 else | |
205 zfs_minor = 0; | |
206 } else { | |
207 zfs_minor++; | |
208 } | |
209 *dev = makedevice(zfs_major, zfs_minor); | |
210 mutex_exit(&zfs_dev_mtx); | |
211 } while (vfs_devismounted(*dev) && zfs_minor != start); | |
212 if (zfs_minor == start) { | |
213 /* | |
214 * We are using all ~262,000 minor numbers for the | |
215 * current major number. Create a new major number. | |
216 */ | |
217 if ((new_major = getudev()) == (major_t)-1) { | |
218 cmn_err(CE_WARN, | |
219 "zfs_mount: Can't get unique major " | |
220 "device number."); | |
221 return (-1); | |
222 } | |
223 mutex_enter(&zfs_dev_mtx); | |
224 zfs_major = new_major; | |
225 zfs_minor = 0; | |
226 | |
227 mutex_exit(&zfs_dev_mtx); | |
228 } else { | |
229 break; | |
230 } | |
231 /* CONSTANTCONDITION */ | |
232 } while (1); | |
233 | |
234 return (0); | |
235 } | |
236 | |
789 | 237 static void |
238 atime_changed_cb(void *arg, uint64_t newval) | |
239 { | |
240 zfsvfs_t *zfsvfs = arg; | |
241 | |
242 if (newval == TRUE) { | |
243 zfsvfs->z_atime = TRUE; | |
244 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOATIME); | |
245 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_ATIME, NULL, 0); | |
246 } else { | |
247 zfsvfs->z_atime = FALSE; | |
248 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_ATIME); | |
249 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOATIME, NULL, 0); | |
250 } | |
251 } | |
252 | |
253 static void | |
3234 | 254 xattr_changed_cb(void *arg, uint64_t newval) |
255 { | |
256 zfsvfs_t *zfsvfs = arg; | |
257 | |
258 if (newval == TRUE) { | |
259 /* XXX locking on vfs_flag? */ | |
260 zfsvfs->z_vfs->vfs_flag |= VFS_XATTR; | |
261 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOXATTR); | |
262 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_XATTR, NULL, 0); | |
263 } else { | |
264 /* XXX locking on vfs_flag? */ | |
265 zfsvfs->z_vfs->vfs_flag &= ~VFS_XATTR; | |
266 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_XATTR); | |
267 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOXATTR, NULL, 0); | |
268 } | |
269 } | |
270 | |
271 static void | |
789 | 272 blksz_changed_cb(void *arg, uint64_t newval) |
273 { | |
274 zfsvfs_t *zfsvfs = arg; | |
275 | |
276 if (newval < SPA_MINBLOCKSIZE || | |
277 newval > SPA_MAXBLOCKSIZE || !ISP2(newval)) | |
278 newval = SPA_MAXBLOCKSIZE; | |
279 | |
280 zfsvfs->z_max_blksz = newval; | |
281 zfsvfs->z_vfs->vfs_bsize = newval; | |
282 } | |
283 | |
284 static void | |
285 readonly_changed_cb(void *arg, uint64_t newval) | |
286 { | |
287 zfsvfs_t *zfsvfs = arg; | |
288 | |
289 if (newval) { | |
290 /* XXX locking on vfs_flag? */ | |
291 zfsvfs->z_vfs->vfs_flag |= VFS_RDONLY; | |
292 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_RW); | |
293 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_RO, NULL, 0); | |
294 } else { | |
295 /* XXX locking on vfs_flag? */ | |
296 zfsvfs->z_vfs->vfs_flag &= ~VFS_RDONLY; | |
297 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_RO); | |
298 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_RW, NULL, 0); | |
299 } | |
300 } | |
301 | |
302 static void | |
303 devices_changed_cb(void *arg, uint64_t newval) | |
304 { | |
305 zfsvfs_t *zfsvfs = arg; | |
306 | |
307 if (newval == FALSE) { | |
308 zfsvfs->z_vfs->vfs_flag |= VFS_NODEVICES; | |
309 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_DEVICES); | |
310 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NODEVICES, NULL, 0); | |
311 } else { | |
312 zfsvfs->z_vfs->vfs_flag &= ~VFS_NODEVICES; | |
313 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NODEVICES); | |
314 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_DEVICES, NULL, 0); | |
315 } | |
316 } | |
317 | |
318 static void | |
319 setuid_changed_cb(void *arg, uint64_t newval) | |
320 { | |
321 zfsvfs_t *zfsvfs = arg; | |
322 | |
323 if (newval == FALSE) { | |
324 zfsvfs->z_vfs->vfs_flag |= VFS_NOSETUID; | |
325 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_SETUID); | |
326 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOSETUID, NULL, 0); | |
327 } else { | |
328 zfsvfs->z_vfs->vfs_flag &= ~VFS_NOSETUID; | |
329 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOSETUID); | |
330 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_SETUID, NULL, 0); | |
331 } | |
332 } | |
333 | |
334 static void | |
335 exec_changed_cb(void *arg, uint64_t newval) | |
336 { | |
337 zfsvfs_t *zfsvfs = arg; | |
338 | |
339 if (newval == FALSE) { | |
340 zfsvfs->z_vfs->vfs_flag |= VFS_NOEXEC; | |
341 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_EXEC); | |
342 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NOEXEC, NULL, 0); | |
343 } else { | |
344 zfsvfs->z_vfs->vfs_flag &= ~VFS_NOEXEC; | |
345 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NOEXEC); | |
346 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_EXEC, NULL, 0); | |
347 } | |
348 } | |
349 | |
5331 | 350 /* |
351 * The nbmand mount option can be changed at mount time. | |
352 * We can't allow it to be toggled on live file systems or incorrect | |
353 * behavior may be seen from cifs clients | |
354 * | |
355 * This property isn't registered via dsl_prop_register(), but this callback | |
356 * will be called when a file system is first mounted | |
357 */ | |
358 static void | |
359 nbmand_changed_cb(void *arg, uint64_t newval) | |
360 { | |
361 zfsvfs_t *zfsvfs = arg; | |
362 if (newval == FALSE) { | |
363 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NBMAND); | |
364 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NONBMAND, NULL, 0); | |
365 } else { | |
366 vfs_clearmntopt(zfsvfs->z_vfs, MNTOPT_NONBMAND); | |
367 vfs_setmntopt(zfsvfs->z_vfs, MNTOPT_NBMAND, NULL, 0); | |
368 } | |
369 } | |
370 | |
789 | 371 static void |
372 snapdir_changed_cb(void *arg, uint64_t newval) | |
373 { | |
374 zfsvfs_t *zfsvfs = arg; | |
375 | |
376 zfsvfs->z_show_ctldir = newval; | |
377 } | |
378 | |
379 static void | |
5331 | 380 vscan_changed_cb(void *arg, uint64_t newval) |
381 { | |
382 zfsvfs_t *zfsvfs = arg; | |
383 | |
384 zfsvfs->z_vscan = newval; | |
385 } | |
386 | |
387 static void | |
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388 acl_mode_changed_cb(void *arg, uint64_t newval) |
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389 { |
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390 zfsvfs_t *zfsvfs = arg; |
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391 |
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392 zfsvfs->z_acl_mode = newval; |
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393 } |
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394 |
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395 static void |
789 | 396 acl_inherit_changed_cb(void *arg, uint64_t newval) |
397 { | |
398 zfsvfs_t *zfsvfs = arg; | |
399 | |
400 zfsvfs->z_acl_inherit = newval; | |
401 } | |
402 | |
1544 | 403 static int |
404 zfs_register_callbacks(vfs_t *vfsp) | |
405 { | |
406 struct dsl_dataset *ds = NULL; | |
407 objset_t *os = NULL; | |
408 zfsvfs_t *zfsvfs = NULL; | |
5331 | 409 uint64_t nbmand; |
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410 boolean_t readonly = B_FALSE; |
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411 boolean_t do_readonly = B_FALSE; |
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412 boolean_t setuid = B_FALSE; |
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413 boolean_t do_setuid = B_FALSE; |
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414 boolean_t exec = B_FALSE; |
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415 boolean_t do_exec = B_FALSE; |
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416 boolean_t devices = B_FALSE; |
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417 boolean_t do_devices = B_FALSE; |
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418 boolean_t xattr = B_FALSE; |
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419 boolean_t do_xattr = B_FALSE; |
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420 boolean_t atime = B_FALSE; |
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421 boolean_t do_atime = B_FALSE; |
1544 | 422 int error = 0; |
423 | |
424 ASSERT(vfsp); | |
425 zfsvfs = vfsp->vfs_data; | |
426 ASSERT(zfsvfs); | |
427 os = zfsvfs->z_os; | |
428 | |
429 /* | |
430 * The act of registering our callbacks will destroy any mount | |
431 * options we may have. In order to enable temporary overrides | |
3234 | 432 * of mount options, we stash away the current values and |
1544 | 433 * restore them after we register the callbacks. |
434 */ | |
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435 if (vfs_optionisset(vfsp, MNTOPT_RO, NULL) || |
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436 !spa_writeable(dmu_objset_spa(os))) { |
1544 | 437 readonly = B_TRUE; |
438 do_readonly = B_TRUE; | |
439 } else if (vfs_optionisset(vfsp, MNTOPT_RW, NULL)) { | |
440 readonly = B_FALSE; | |
441 do_readonly = B_TRUE; | |
442 } | |
443 if (vfs_optionisset(vfsp, MNTOPT_NOSUID, NULL)) { | |
444 devices = B_FALSE; | |
445 setuid = B_FALSE; | |
446 do_devices = B_TRUE; | |
447 do_setuid = B_TRUE; | |
448 } else { | |
449 if (vfs_optionisset(vfsp, MNTOPT_NODEVICES, NULL)) { | |
450 devices = B_FALSE; | |
451 do_devices = B_TRUE; | |
3912 | 452 } else if (vfs_optionisset(vfsp, MNTOPT_DEVICES, NULL)) { |
1544 | 453 devices = B_TRUE; |
454 do_devices = B_TRUE; | |
455 } | |
456 | |
457 if (vfs_optionisset(vfsp, MNTOPT_NOSETUID, NULL)) { | |
458 setuid = B_FALSE; | |
459 do_setuid = B_TRUE; | |
460 } else if (vfs_optionisset(vfsp, MNTOPT_SETUID, NULL)) { | |
461 setuid = B_TRUE; | |
462 do_setuid = B_TRUE; | |
463 } | |
464 } | |
465 if (vfs_optionisset(vfsp, MNTOPT_NOEXEC, NULL)) { | |
466 exec = B_FALSE; | |
467 do_exec = B_TRUE; | |
468 } else if (vfs_optionisset(vfsp, MNTOPT_EXEC, NULL)) { | |
469 exec = B_TRUE; | |
470 do_exec = B_TRUE; | |
471 } | |
3234 | 472 if (vfs_optionisset(vfsp, MNTOPT_NOXATTR, NULL)) { |
473 xattr = B_FALSE; | |
474 do_xattr = B_TRUE; | |
475 } else if (vfs_optionisset(vfsp, MNTOPT_XATTR, NULL)) { | |
476 xattr = B_TRUE; | |
477 do_xattr = B_TRUE; | |
478 } | |
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479 if (vfs_optionisset(vfsp, MNTOPT_NOATIME, NULL)) { |
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480 atime = B_FALSE; |
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481 do_atime = B_TRUE; |
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482 } else if (vfs_optionisset(vfsp, MNTOPT_ATIME, NULL)) { |
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483 atime = B_TRUE; |
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484 do_atime = B_TRUE; |
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485 } |
1544 | 486 |
487 /* | |
5331 | 488 * nbmand is a special property. It can only be changed at |
489 * mount time. | |
490 * | |
491 * This is weird, but it is documented to only be changeable | |
492 * at mount time. | |
493 */ | |
494 if (vfs_optionisset(vfsp, MNTOPT_NONBMAND, NULL)) { | |
495 nbmand = B_FALSE; | |
496 } else if (vfs_optionisset(vfsp, MNTOPT_NBMAND, NULL)) { | |
497 nbmand = B_TRUE; | |
498 } else { | |
499 char osname[MAXNAMELEN]; | |
500 | |
501 dmu_objset_name(os, osname); | |
502 if (error = dsl_prop_get_integer(osname, "nbmand", &nbmand, | |
7265 | 503 NULL)) { |
504 return (error); | |
505 } | |
5331 | 506 } |
507 | |
508 /* | |
1544 | 509 * Register property callbacks. |
510 * | |
511 * It would probably be fine to just check for i/o error from | |
512 * the first prop_register(), but I guess I like to go | |
513 * overboard... | |
514 */ | |
515 ds = dmu_objset_ds(os); | |
516 error = dsl_prop_register(ds, "atime", atime_changed_cb, zfsvfs); | |
517 error = error ? error : dsl_prop_register(ds, | |
3234 | 518 "xattr", xattr_changed_cb, zfsvfs); |
519 error = error ? error : dsl_prop_register(ds, | |
1544 | 520 "recordsize", blksz_changed_cb, zfsvfs); |
521 error = error ? error : dsl_prop_register(ds, | |
522 "readonly", readonly_changed_cb, zfsvfs); | |
523 error = error ? error : dsl_prop_register(ds, | |
524 "devices", devices_changed_cb, zfsvfs); | |
525 error = error ? error : dsl_prop_register(ds, | |
526 "setuid", setuid_changed_cb, zfsvfs); | |
527 error = error ? error : dsl_prop_register(ds, | |
528 "exec", exec_changed_cb, zfsvfs); | |
529 error = error ? error : dsl_prop_register(ds, | |
530 "snapdir", snapdir_changed_cb, zfsvfs); | |
531 error = error ? error : dsl_prop_register(ds, | |
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532 "aclmode", acl_mode_changed_cb, zfsvfs); |
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533 error = error ? error : dsl_prop_register(ds, |
1544 | 534 "aclinherit", acl_inherit_changed_cb, zfsvfs); |
5331 | 535 error = error ? error : dsl_prop_register(ds, |
536 "vscan", vscan_changed_cb, zfsvfs); | |
1544 | 537 if (error) |
538 goto unregister; | |
539 | |
540 /* | |
541 * Invoke our callbacks to restore temporary mount options. | |
542 */ | |
543 if (do_readonly) | |
544 readonly_changed_cb(zfsvfs, readonly); | |
545 if (do_setuid) | |
546 setuid_changed_cb(zfsvfs, setuid); | |
547 if (do_exec) | |
548 exec_changed_cb(zfsvfs, exec); | |
549 if (do_devices) | |
550 devices_changed_cb(zfsvfs, devices); | |
3234 | 551 if (do_xattr) |
552 xattr_changed_cb(zfsvfs, xattr); | |
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553 if (do_atime) |
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554 atime_changed_cb(zfsvfs, atime); |
1544 | 555 |
5331 | 556 nbmand_changed_cb(zfsvfs, nbmand); |
557 | |
1544 | 558 return (0); |
559 | |
560 unregister: | |
561 /* | |
562 * We may attempt to unregister some callbacks that are not | |
563 * registered, but this is OK; it will simply return ENOMSG, | |
564 * which we will ignore. | |
565 */ | |
566 (void) dsl_prop_unregister(ds, "atime", atime_changed_cb, zfsvfs); | |
3234 | 567 (void) dsl_prop_unregister(ds, "xattr", xattr_changed_cb, zfsvfs); |
1544 | 568 (void) dsl_prop_unregister(ds, "recordsize", blksz_changed_cb, zfsvfs); |
569 (void) dsl_prop_unregister(ds, "readonly", readonly_changed_cb, zfsvfs); | |
570 (void) dsl_prop_unregister(ds, "devices", devices_changed_cb, zfsvfs); | |
571 (void) dsl_prop_unregister(ds, "setuid", setuid_changed_cb, zfsvfs); | |
572 (void) dsl_prop_unregister(ds, "exec", exec_changed_cb, zfsvfs); | |
573 (void) dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, zfsvfs); | |
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574 (void) dsl_prop_unregister(ds, "aclmode", acl_mode_changed_cb, zfsvfs); |
1544 | 575 (void) dsl_prop_unregister(ds, "aclinherit", acl_inherit_changed_cb, |
576 zfsvfs); | |
5331 | 577 (void) dsl_prop_unregister(ds, "vscan", vscan_changed_cb, zfsvfs); |
1544 | 578 return (error); |
579 | |
580 } | |
581 | |
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582 static int |
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583 zfs_space_delta_cb(dmu_object_type_t bonustype, void *data, |
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584 uint64_t *userp, uint64_t *groupp) |
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585 { |
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586 int error = 0; |
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587 |
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588 /* |
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589 * Is it a valid type of object to track? |
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590 */ |
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591 if (bonustype != DMU_OT_ZNODE && bonustype != DMU_OT_SA) |
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592 return (ENOENT); |
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593 |
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594 /* |
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595 * If we have a NULL data pointer |
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596 * then assume the id's aren't changing and |
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597 * return EEXIST to the dmu to let it know to |
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598 * use the same ids |
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599 */ |
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600 if (data == NULL) |
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601 return (EEXIST); |
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602 |
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603 if (bonustype == DMU_OT_ZNODE) { |
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604 znode_phys_t *znp = data; |
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605 *userp = znp->zp_uid; |
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606 *groupp = znp->zp_gid; |
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607 } else { |
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608 int hdrsize; |
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609 sa_hdr_phys_t *sap = data; |
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610 sa_hdr_phys_t sa = *sap; |
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611 boolean_t swap = B_FALSE; |
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612 |
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613 ASSERT(bonustype == DMU_OT_SA); |
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614 |
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615 if (sa.sa_magic == 0) { |
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616 /* |
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6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
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parents:
12164
diff
changeset
|
617 * This should only happen for newly created |
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
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parents:
12164
diff
changeset
|
618 * files that haven't had the znode data filled |
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12164
diff
changeset
|
619 * in yet. |
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
12164
diff
changeset
|
620 */ |
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
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parents:
12164
diff
changeset
|
621 *userp = 0; |
93ec1371f750
6939983 assertion failed: zap_count(os, DMU_USERUSED_OBJECT, &count) != 0||count == 0, in dsl_dataset.c
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12164
diff
changeset
|
622 *groupp = 0; |
13835
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
623 return (0); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
624 } |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
625 if (sa.sa_magic == BSWAP_32(SA_MAGIC)) { |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
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parents:
13805
diff
changeset
|
626 sa.sa_magic = SA_MAGIC; |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
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13805
diff
changeset
|
627 sa.sa_layout_info = BSWAP_16(sa.sa_layout_info); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
628 swap = B_TRUE; |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
629 } else { |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
630 VERIFY3U(sa.sa_magic, ==, SA_MAGIC); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
631 } |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
632 |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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13805
diff
changeset
|
633 hdrsize = sa_hdrsize(&sa); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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13805
diff
changeset
|
634 VERIFY3U(hdrsize, >=, sizeof (sa_hdr_phys_t)); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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13805
diff
changeset
|
635 *userp = *((uint64_t *)((uintptr_t)data + hdrsize + |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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13805
diff
changeset
|
636 SA_UID_OFFSET)); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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diff
changeset
|
637 *groupp = *((uint64_t *)((uintptr_t)data + hdrsize + |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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diff
changeset
|
638 SA_GID_OFFSET)); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
parents:
13805
diff
changeset
|
639 if (swap) { |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
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diff
changeset
|
640 *userp = BSWAP_64(*userp); |
eea81edc4f14
3208 moving zpool cross-endian results in incorrect user/group accounting
Matthew Ahrens <mahrens@delphix.com>
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13805
diff
changeset
|
641 *groupp = BSWAP_64(*groupp); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
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11824
diff
changeset
|
642 } |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
643 } |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
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11824
diff
changeset
|
644 return (error); |
9396
f41cf682d0d3
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diff
changeset
|
645 } |
f41cf682d0d3
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diff
changeset
|
646 |
f41cf682d0d3
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diff
changeset
|
647 static void |
f41cf682d0d3
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diff
changeset
|
648 fuidstr_to_sid(zfsvfs_t *zfsvfs, const char *fuidstr, |
f41cf682d0d3
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diff
changeset
|
649 char *domainbuf, int buflen, uid_t *ridp) |
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PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
650 { |
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diff
changeset
|
651 uint64_t fuid; |
f41cf682d0d3
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diff
changeset
|
652 const char *domain; |
f41cf682d0d3
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9292
diff
changeset
|
653 |
f41cf682d0d3
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diff
changeset
|
654 fuid = strtonum(fuidstr, NULL); |
f41cf682d0d3
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diff
changeset
|
655 |
f41cf682d0d3
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diff
changeset
|
656 domain = zfs_fuid_find_by_idx(zfsvfs, FUID_INDEX(fuid)); |
f41cf682d0d3
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diff
changeset
|
657 if (domain) |
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diff
changeset
|
658 (void) strlcpy(domainbuf, domain, buflen); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
659 else |
f41cf682d0d3
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diff
changeset
|
660 domainbuf[0] = '\0'; |
f41cf682d0d3
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diff
changeset
|
661 *ridp = FUID_RID(fuid); |
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diff
changeset
|
662 } |
f41cf682d0d3
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diff
changeset
|
663 |
f41cf682d0d3
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diff
changeset
|
664 static uint64_t |
f41cf682d0d3
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diff
changeset
|
665 zfs_userquota_prop_to_obj(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type) |
f41cf682d0d3
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diff
changeset
|
666 { |
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diff
changeset
|
667 switch (type) { |
f41cf682d0d3
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diff
changeset
|
668 case ZFS_PROP_USERUSED: |
f41cf682d0d3
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diff
changeset
|
669 return (DMU_USERUSED_OBJECT); |
f41cf682d0d3
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diff
changeset
|
670 case ZFS_PROP_GROUPUSED: |
f41cf682d0d3
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diff
changeset
|
671 return (DMU_GROUPUSED_OBJECT); |
f41cf682d0d3
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9292
diff
changeset
|
672 case ZFS_PROP_USERQUOTA: |
f41cf682d0d3
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diff
changeset
|
673 return (zfsvfs->z_userquota_obj); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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9292
diff
changeset
|
674 case ZFS_PROP_GROUPQUOTA: |
f41cf682d0d3
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diff
changeset
|
675 return (zfsvfs->z_groupquota_obj); |
f41cf682d0d3
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9292
diff
changeset
|
676 } |
f41cf682d0d3
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diff
changeset
|
677 return (0); |
f41cf682d0d3
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diff
changeset
|
678 } |
f41cf682d0d3
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9292
diff
changeset
|
679 |
f41cf682d0d3
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diff
changeset
|
680 int |
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diff
changeset
|
681 zfs_userspace_many(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, |
f41cf682d0d3
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diff
changeset
|
682 uint64_t *cookiep, void *vbuf, uint64_t *bufsizep) |
f41cf682d0d3
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diff
changeset
|
683 { |
f41cf682d0d3
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diff
changeset
|
684 int error; |
f41cf682d0d3
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diff
changeset
|
685 zap_cursor_t zc; |
f41cf682d0d3
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diff
changeset
|
686 zap_attribute_t za; |
f41cf682d0d3
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diff
changeset
|
687 zfs_useracct_t *buf = vbuf; |
f41cf682d0d3
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diff
changeset
|
688 uint64_t obj; |
f41cf682d0d3
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9292
diff
changeset
|
689 |
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diff
changeset
|
690 if (!dmu_objset_userspace_present(zfsvfs->z_os)) |
f41cf682d0d3
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parents:
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diff
changeset
|
691 return (ENOTSUP); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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9292
diff
changeset
|
692 |
f41cf682d0d3
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diff
changeset
|
693 obj = zfs_userquota_prop_to_obj(zfsvfs, type); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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parents:
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diff
changeset
|
694 if (obj == 0) { |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
695 *bufsizep = 0; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
696 return (0); |
f41cf682d0d3
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diff
changeset
|
697 } |
f41cf682d0d3
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parents:
9292
diff
changeset
|
698 |
f41cf682d0d3
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diff
changeset
|
699 for (zap_cursor_init_serialized(&zc, zfsvfs->z_os, obj, *cookiep); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
700 (error = zap_cursor_retrieve(&zc, &za)) == 0; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
701 zap_cursor_advance(&zc)) { |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
702 if ((uintptr_t)buf - (uintptr_t)vbuf + sizeof (zfs_useracct_t) > |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
703 *bufsizep) |
f41cf682d0d3
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diff
changeset
|
704 break; |
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diff
changeset
|
705 |
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diff
changeset
|
706 fuidstr_to_sid(zfsvfs, za.za_name, |
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diff
changeset
|
707 buf->zu_domain, sizeof (buf->zu_domain), &buf->zu_rid); |
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diff
changeset
|
708 |
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diff
changeset
|
709 buf->zu_space = za.za_first_integer; |
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diff
changeset
|
710 buf++; |
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diff
changeset
|
711 } |
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diff
changeset
|
712 if (error == ENOENT) |
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diff
changeset
|
713 error = 0; |
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diff
changeset
|
714 |
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diff
changeset
|
715 ASSERT3U((uintptr_t)buf - (uintptr_t)vbuf, <=, *bufsizep); |
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diff
changeset
|
716 *bufsizep = (uintptr_t)buf - (uintptr_t)vbuf; |
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diff
changeset
|
717 *cookiep = zap_cursor_serialize(&zc); |
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diff
changeset
|
718 zap_cursor_fini(&zc); |
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diff
changeset
|
719 return (error); |
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diff
changeset
|
720 } |
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diff
changeset
|
721 |
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diff
changeset
|
722 /* |
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diff
changeset
|
723 * buf must be big enough (eg, 32 bytes) |
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diff
changeset
|
724 */ |
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|
725 static int |
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726 id_to_fuidstr(zfsvfs_t *zfsvfs, const char *domain, uid_t rid, |
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727 char *buf, boolean_t addok) |
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|
728 { |
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|
729 uint64_t fuid; |
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|
730 int domainid = 0; |
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|
731 |
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|
732 if (domain && domain[0]) { |
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733 domainid = zfs_fuid_find_by_domain(zfsvfs, domain, NULL, addok); |
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|
734 if (domainid == -1) |
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|
735 return (ENOENT); |
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|
736 } |
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|
737 fuid = FUID_ENCODE(domainid, rid); |
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|
738 (void) sprintf(buf, "%llx", (longlong_t)fuid); |
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|
739 return (0); |
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|
740 } |
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|
741 |
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|
742 int |
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743 zfs_userspace_one(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, |
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744 const char *domain, uint64_t rid, uint64_t *valp) |
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|
745 { |
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746 char buf[32]; |
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|
747 int err; |
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748 uint64_t obj; |
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749 |
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750 *valp = 0; |
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751 |
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752 if (!dmu_objset_userspace_present(zfsvfs->z_os)) |
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753 return (ENOTSUP); |
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|
754 |
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755 obj = zfs_userquota_prop_to_obj(zfsvfs, type); |
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756 if (obj == 0) |
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|
757 return (0); |
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|
758 |
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759 err = id_to_fuidstr(zfsvfs, domain, rid, buf, B_FALSE); |
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760 if (err) |
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|
761 return (err); |
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|
762 |
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763 err = zap_lookup(zfsvfs->z_os, obj, buf, 8, 1, valp); |
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764 if (err == ENOENT) |
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765 err = 0; |
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|
766 return (err); |
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|
767 } |
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|
768 |
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|
769 int |
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770 zfs_set_userquota(zfsvfs_t *zfsvfs, zfs_userquota_prop_t type, |
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771 const char *domain, uint64_t rid, uint64_t quota) |
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772 { |
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773 char buf[32]; |
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|
774 int err; |
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775 dmu_tx_t *tx; |
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776 uint64_t *objp; |
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777 boolean_t fuid_dirtied; |
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|
778 |
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779 if (type != ZFS_PROP_USERQUOTA && type != ZFS_PROP_GROUPQUOTA) |
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|
780 return (EINVAL); |
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|
781 |
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|
782 if (zfsvfs->z_version < ZPL_VERSION_USERSPACE) |
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|
783 return (ENOTSUP); |
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|
784 |
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785 objp = (type == ZFS_PROP_USERQUOTA) ? &zfsvfs->z_userquota_obj : |
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|
786 &zfsvfs->z_groupquota_obj; |
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|
787 |
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|
788 err = id_to_fuidstr(zfsvfs, domain, rid, buf, B_TRUE); |
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|
789 if (err) |
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|
790 return (err); |
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791 fuid_dirtied = zfsvfs->z_fuid_dirty; |
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|
792 |
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|
793 tx = dmu_tx_create(zfsvfs->z_os); |
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|
794 dmu_tx_hold_zap(tx, *objp ? *objp : DMU_NEW_OBJECT, B_TRUE, NULL); |
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changeset
|
795 if (*objp == 0) { |
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|
796 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_TRUE, |
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|
797 zfs_userquota_prop_prefixes[type]); |
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|
798 } |
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changeset
|
799 if (fuid_dirtied) |
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|
800 zfs_fuid_txhold(zfsvfs, tx); |
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|
801 err = dmu_tx_assign(tx, TXG_WAIT); |
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changeset
|
802 if (err) { |
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|
803 dmu_tx_abort(tx); |
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|
804 return (err); |
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|
805 } |
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changeset
|
806 |
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|
807 mutex_enter(&zfsvfs->z_lock); |
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changeset
|
808 if (*objp == 0) { |
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|
809 *objp = zap_create(zfsvfs->z_os, DMU_OT_USERGROUP_QUOTA, |
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|
810 DMU_OT_NONE, 0, tx); |
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changeset
|
811 VERIFY(0 == zap_add(zfsvfs->z_os, MASTER_NODE_OBJ, |
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|
812 zfs_userquota_prop_prefixes[type], 8, 1, objp, tx)); |
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|
813 } |
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|
814 mutex_exit(&zfsvfs->z_lock); |
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|
815 |
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diff
changeset
|
816 if (quota == 0) { |
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|
817 err = zap_remove(zfsvfs->z_os, *objp, buf, tx); |
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|
818 if (err == ENOENT) |
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changeset
|
819 err = 0; |
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|
820 } else { |
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changeset
|
821 err = zap_update(zfsvfs->z_os, *objp, buf, 8, 1, "a, tx); |
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diff
changeset
|
822 } |
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changeset
|
823 ASSERT(err == 0); |
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changeset
|
824 if (fuid_dirtied) |
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|
825 zfs_fuid_sync(zfsvfs, tx); |
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changeset
|
826 dmu_tx_commit(tx); |
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changeset
|
827 return (err); |
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changeset
|
828 } |
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changeset
|
829 |
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diff
changeset
|
830 boolean_t |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
831 zfs_fuid_overquota(zfsvfs_t *zfsvfs, boolean_t isgroup, uint64_t fuid) |
9396
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diff
changeset
|
832 { |
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changeset
|
833 char buf[32]; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
834 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
|
835 int err; |
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 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
|
838 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
|
839 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
840 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
|
841 return (B_FALSE); |
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 (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
|
844 err = zap_lookup(zfsvfs->z_os, quotaobj, buf, 8, 1, "a); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
845 if (err != 0) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
846 return (B_FALSE); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
847 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
848 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
|
849 if (err != 0) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
850 return (B_FALSE); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
851 return (used >= quota); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
852 } |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
853 |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
854 boolean_t |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
855 zfs_owner_overquota(zfsvfs_t *zfsvfs, znode_t *zp, boolean_t isgroup) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
856 { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
857 uint64_t fuid; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
858 uint64_t quotaobj; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
859 |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
860 quotaobj = isgroup ? zfsvfs->z_groupquota_obj : zfsvfs->z_userquota_obj; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
861 |
13081
79b387e27d99
6971929 Unable to add/remove ACE after doing idmap flush -a
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13061
diff
changeset
|
862 fuid = isgroup ? zp->z_gid : zp->z_uid; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
863 |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
864 if (quotaobj == 0 || zfsvfs->z_replay) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
865 return (B_FALSE); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
866 |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
867 return (zfs_fuid_overquota(zfsvfs, isgroup, fuid)); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
868 } |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
869 |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
870 int |
11185
f0c31008e395
6887924 PP_ISKAS needs to be defined in terms of VN_ISKAS for vnodes
Sean McEnroe <Sean.McEnroe@Sun.COM>
parents:
11022
diff
changeset
|
871 zfsvfs_create(const char *osname, zfsvfs_t **zfvp) |
9396
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 objset_t *os; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
874 zfsvfs_t *zfsvfs; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
875 uint64_t zval; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
876 int i, error; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
877 uint64_t sa_obj; |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
878 |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
879 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
|
880 |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
881 /* |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
882 * 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
|
883 * 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
|
884 */ |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
885 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
|
886 if (error) { |
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
887 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
|
888 return (error); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
889 } |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
890 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
891 /* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
892 * 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
|
893 * 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
|
894 * 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
|
895 */ |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
896 zfsvfs->z_vfs = NULL; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
897 zfsvfs->z_parent = zfsvfs; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
898 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
|
899 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
|
900 zfsvfs->z_os = os; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
901 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
902 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
|
903 if (error) { |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
904 goto out; |
12070
01261b276236
6940770 panic in sa_find_idx_tab() after receiving into pool when version shouldn't have allowed it
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
905 } else if (zfsvfs->z_version > |
01261b276236
6940770 panic in sa_find_idx_tab() after receiving into pool when version shouldn't have allowed it
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
906 zfs_zpl_version_map(spa_version(dmu_objset_spa(os)))) { |
01261b276236
6940770 panic in sa_find_idx_tab() after receiving into pool when version shouldn't have allowed it
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
907 (void) printf("Can't mount a version %lld file system " |
01261b276236
6940770 panic in sa_find_idx_tab() after receiving into pool when version shouldn't have allowed it
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
908 "on a version %lld pool\n. Pool must be upgraded to mount " |
01261b276236
6940770 panic in sa_find_idx_tab() after receiving into pool when version shouldn't have allowed it
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
909 "this file system.", (u_longlong_t)zfsvfs->z_version, |
01261b276236
6940770 panic in sa_find_idx_tab() after receiving into pool when version shouldn't have allowed it
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11935
diff
changeset
|
910 (u_longlong_t)spa_version(dmu_objset_spa(os))); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
911 error = ENOTSUP; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
912 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
913 } |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
914 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
|
915 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
916 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
|
917 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
918 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
|
919 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
920 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
|
921 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
922 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
|
923 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
924 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
|
925 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
926 /* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
927 * 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
|
928 * insensitive. |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
929 */ |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
930 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
|
931 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
|
932 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
|
933 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
934 zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os); |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
935 zfsvfs->z_use_sa = USE_SA(zfsvfs->z_version, zfsvfs->z_os); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
936 |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
937 if (zfsvfs->z_use_sa) { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
938 /* should either have both of these objects or none */ |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
939 error = zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 8, 1, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
940 &sa_obj); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
941 if (error) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
942 return (error); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
943 } else { |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
944 /* |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
945 * Pre SA versions file systems should never touch |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
946 * either the attribute registration or layout objects. |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
947 */ |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
948 sa_obj = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
949 } |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
950 |
12493
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
951 error = sa_setup(os, sa_obj, zfs_attr_table, ZPL_END, |
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
952 &zfsvfs->z_attr_table); |
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
953 if (error) |
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
954 goto out; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
955 |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
956 if (zfsvfs->z_version >= ZPL_VERSION_SA) |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
957 sa_register_update_callback(os, zfs_sa_upgrade); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
958 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
959 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
|
960 &zfsvfs->z_root); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
961 if (error) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
962 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
963 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
|
964 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
965 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
|
966 &zfsvfs->z_unlinkedobj); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
967 if (error) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
968 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
969 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
970 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
|
971 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
|
972 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
|
973 if (error && error != ENOENT) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
974 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
975 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
976 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
|
977 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
|
978 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
|
979 if (error && error != ENOENT) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
980 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
981 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
982 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
|
983 &zfsvfs->z_fuid_obj); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
984 if (error && error != ENOENT) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
985 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
986 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
987 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
|
988 &zfsvfs->z_shares_dir); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
989 if (error && error != ENOENT) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
990 goto out; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
991 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
992 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
|
993 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
|
994 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
|
995 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
|
996 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
|
997 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
|
998 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
|
999 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
|
1000 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
|
1001 |
11185
f0c31008e395
6887924 PP_ISKAS needs to be defined in terms of VN_ISKAS for vnodes
Sean McEnroe <Sean.McEnroe@Sun.COM>
parents:
11022
diff
changeset
|
1002 *zfvp = zfsvfs; |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1003 return (0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1004 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1005 out: |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
1006 dmu_objset_disown(os, zfsvfs); |
11185
f0c31008e395
6887924 PP_ISKAS needs to be defined in terms of VN_ISKAS for vnodes
Sean McEnroe <Sean.McEnroe@Sun.COM>
parents:
11022
diff
changeset
|
1007 *zfvp = NULL; |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1008 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
|
1009 return (error); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1010 } |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1011 |
1544 | 1012 static int |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1013 zfsvfs_setup(zfsvfs_t *zfsvfs, boolean_t mounting) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1014 { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1015 int error; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1016 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1017 error = zfs_register_callbacks(zfsvfs->z_vfs); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1018 if (error) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1019 return (error); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1020 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1021 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1022 * 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
|
1023 */ |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
1024 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
|
1025 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
|
1026 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
|
1027 |
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
|
1028 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
|
1029 |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1030 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1031 * 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
|
1032 * 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
|
1033 * operations out since we closed the ZIL. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1034 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1035 if (mounting) { |
7638
5505e89fa6c8
6741237 zfs hang in txg_wait_open() on boot
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
7265
diff
changeset
|
1036 boolean_t readonly; |
5505e89fa6c8
6741237 zfs hang in txg_wait_open() on boot
Neil Perrin <Neil.Perrin@Sun.COM>
parents:
7265
diff
changeset
|
1037 |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1038 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1039 * 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
|
1040 * allow replays to succeed. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1041 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1042 readonly = zfsvfs->z_vfs->vfs_flag & VFS_RDONLY; |
8227 | 1043 if (readonly != 0) |
1044 zfsvfs->z_vfs->vfs_flag &= ~VFS_RDONLY; | |
1045 else | |
1046 zfs_unlinked_drain(zfsvfs); | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1047 |
12294
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1048 /* |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1049 * Parse and replay the intent log. |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1050 * |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1051 * Because of ziltest, this must be done after |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1052 * zfs_unlinked_drain(). (Further note: ziltest |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1053 * doesn't use readonly mounts, where |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1054 * zfs_unlinked_drain() isn't called.) This is because |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1055 * ziltest causes spa_sync() to think it's committed, |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1056 * but actually it is not, so the intent log contains |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1057 * many txg's worth of changes. |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1058 * |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1059 * In particular, if object N is in the unlinked set in |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1060 * the last txg to actually sync, then it could be |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1061 * actually freed in a later txg and then reallocated |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1062 * in a yet later txg. This would write a "create |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1063 * object N" record to the intent log. Normally, this |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1064 * would be fine because the spa_sync() would have |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1065 * written out the fact that object N is free, before |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1066 * we could write the "create object N" intent log |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1067 * record. |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1068 * |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1069 * But when we are in ziltest mode, we advance the "open |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1070 * txg" without actually spa_sync()-ing the changes to |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1071 * disk. So we would see that object N is still |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1072 * allocated and in the unlinked set, and there is an |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1073 * intent log record saying to allocate it. |
2a74b443e6b1
PSARC/2010/108 zil synchronicity
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12178
diff
changeset
|
1074 */ |
13061
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1075 if (spa_writeable(dmu_objset_spa(zfsvfs->z_os))) { |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1076 if (zil_replay_disable) { |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1077 zil_destroy(zfsvfs->z_log, B_FALSE); |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1078 } else { |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1079 zfsvfs->z_replay = B_TRUE; |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1080 zil_replay(zfsvfs->z_os, zfsvfs, |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1081 zfs_replay_vector); |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1082 zfsvfs->z_replay = B_FALSE; |
bda0decf867b
PSARC 2010/306 Read-only ZFS pools
George Wilson <George.Wilson@Sun.COM>
parents:
12722
diff
changeset
|
1083 } |
8227 | 1084 } |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1085 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
|
1086 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1087 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1088 return (0); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1089 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1090 |
9396
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PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1091 void |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1092 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
|
1093 { |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1094 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
|
1095 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
|
1096 |
f660bc44f2e8
6843700 zfs_znode_move() does not ensure valid file system pointer
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
9749
diff
changeset
|
1097 /* |
f660bc44f2e8
6843700 zfs_znode_move() does not ensure valid file system pointer
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
9749
diff
changeset
|
1098 * 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
|
1099 * 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
|
1100 * 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
|
1101 * 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
|
1102 */ |
f660bc44f2e8
6843700 zfs_znode_move() does not ensure valid file system pointer
Tom Erickson <Tom.Erickson@Sun.COM>
parents:
9749
diff
changeset
|
1103 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
|
1104 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
|
1105 |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1106 zfs_fuid_destroy(zfsvfs); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1107 |
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
|
1108 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
|
1109 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
|
1110 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
|
1111 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
|
1112 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
|
1113 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
|
1114 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
|
1115 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
|
1116 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
|
1117 } |
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
|
1118 |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1119 static void |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1120 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
|
1121 { |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1122 zfsvfs->z_use_fuids = USE_FUIDS(zfsvfs->z_version, zfsvfs->z_os); |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1123 if (zfsvfs->z_vfs) { |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1124 if (zfsvfs->z_use_fuids) { |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1125 vfs_set_feature(zfsvfs->z_vfs, VFSFT_XVATTR); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1126 vfs_set_feature(zfsvfs->z_vfs, VFSFT_SYSATTR_VIEWS); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1127 vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACEMASKONACCESS); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1128 vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACLONCREATE); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1129 vfs_set_feature(zfsvfs->z_vfs, VFSFT_ACCESS_FILTER); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1130 vfs_set_feature(zfsvfs->z_vfs, VFSFT_REPARSE); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1131 } else { |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1132 vfs_clear_feature(zfsvfs->z_vfs, VFSFT_XVATTR); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1133 vfs_clear_feature(zfsvfs->z_vfs, VFSFT_SYSATTR_VIEWS); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1134 vfs_clear_feature(zfsvfs->z_vfs, VFSFT_ACEMASKONACCESS); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1135 vfs_clear_feature(zfsvfs->z_vfs, VFSFT_ACLONCREATE); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1136 vfs_clear_feature(zfsvfs->z_vfs, VFSFT_ACCESS_FILTER); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1137 vfs_clear_feature(zfsvfs->z_vfs, VFSFT_REPARSE); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
1138 } |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1139 } |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
1140 zfsvfs->z_use_sa = USE_SA(zfsvfs->z_version, zfsvfs->z_os); |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1141 } |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1142 |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1143 static int |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6689
diff
changeset
|
1144 zfs_domount(vfs_t *vfsp, char *osname) |
1544 | 1145 { |
1146 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
|
1147 uint64_t recordsize, fsid_guid; |
1544 | 1148 int error = 0; |
1149 zfsvfs_t *zfsvfs; | |
1150 | |
1151 ASSERT(vfsp); | |
1152 ASSERT(osname); | |
1153 | |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
1154 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
|
1155 if (error) |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1156 return (error); |
1544 | 1157 zfsvfs->z_vfs = vfsp; |
1158 | |
1159 /* Initialize the generic filesystem structure. */ | |
1160 vfsp->vfs_bcount = 0; | |
1161 vfsp->vfs_data = NULL; | |
1162 | |
1163 if (zfs_create_unique_device(&mount_dev) == -1) { | |
1164 error = ENODEV; | |
1165 goto out; | |
1166 } | |
1167 ASSERT(vfs_devismounted(mount_dev) == 0); | |
1168 | |
1169 if (error = dsl_prop_get_integer(osname, "recordsize", &recordsize, | |
1170 NULL)) | |
1171 goto out; | |
1172 | |
1173 vfsp->vfs_dev = mount_dev; | |
1174 vfsp->vfs_fstype = zfsfstype; | |
1175 vfsp->vfs_bsize = recordsize; | |
1176 vfsp->vfs_flag |= VFS_NOTRUNC; | |
1177 vfsp->vfs_data = zfsvfs; | |
1178 | |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1179 /* |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1180 * 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
|
1181 * 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
|
1182 * 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
|
1183 * all objsets open on this system, provided by unique_create(). |
f41cf682d0d3
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
1184 * 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>
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diff
changeset
|
1185 * 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>
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diff
changeset
|
1186 */ |
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Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
1187 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>
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diff
changeset
|
1188 ASSERT((fsid_guid & ~((1ULL<<56)-1)) == 0); |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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9292
diff
changeset
|
1189 vfsp->vfs_fsid.val[0] = fsid_guid; |
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
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diff
changeset
|
1190 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>
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9292
diff
changeset
|
1191 zfsfstype & 0xFF; |
1544 | 1192 |
5331 | 1193 /* |
1194 * Set features for file system. | |
1195 */ | |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
1196 zfs_set_fuid_feature(zfsvfs); |
5498
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5489
diff
changeset
|
1197 if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE) { |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
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parents:
5489
diff
changeset
|
1198 vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS); |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5489
diff
changeset
|
1199 vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE); |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
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parents:
5489
diff
changeset
|
1200 vfs_set_feature(vfsp, VFSFT_NOCASESENSITIVE); |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5489
diff
changeset
|
1201 } else if (zfsvfs->z_case == ZFS_CASE_MIXED) { |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5489
diff
changeset
|
1202 vfs_set_feature(vfsp, VFSFT_DIRENTFLAGS); |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
timh
parents:
5489
diff
changeset
|
1203 vfs_set_feature(vfsp, VFSFT_CASEINSENSITIVE); |
334b476844ca
6622831 normalization properties are not preserved by "zfs send"
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parents:
5489
diff
changeset
|
1204 } |
11539
10d35fc3d7fd
6873106 Need a mechanism to share buffers between fs modules
chunli zhang - Sun Microsystems - Irvine United States <Chunli.Zhang@Sun.COM>
parents:
11185
diff
changeset
|
1205 vfs_set_feature(vfsp, VFSFT_ZEROCOPY_SUPPORTED); |
5331 | 1206 |
1544 | 1207 if (dmu_objset_is_snapshot(zfsvfs->z_os)) { |
5331 | 1208 uint64_t pval; |
3234 | 1209 |
1544 | 1210 atime_changed_cb(zfsvfs, B_FALSE); |
1211 readonly_changed_cb(zfsvfs, B_TRUE); | |
5331 | 1212 if (error = dsl_prop_get_integer(osname, "xattr", &pval, NULL)) |
3234 | 1213 goto out; |
5331 | 1214 xattr_changed_cb(zfsvfs, pval); |
1544 | 1215 zfsvfs->z_issnap = B_TRUE; |
12530
805d6a3f27b5
6957113 accessing a fifo special file in .zfs snapshot dir panics kernel
Mark J Musante <Mark.Musante@Sun.COM>
parents:
12493
diff
changeset
|
1216 zfsvfs->z_os->os_sync = ZFS_SYNC_DISABLED; |
9688
127be1845343
6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9396
diff
changeset
|
1217 |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
1218 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>
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9396
diff
changeset
|
1219 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
|
1220 mutex_exit(&zfsvfs->z_os->os_user_ptr_lock); |
1544 | 1221 } else { |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1222 error = zfsvfs_setup(zfsvfs, B_TRUE); |
1544 | 1223 } |
1224 | |
1225 if (!zfsvfs->z_issnap) | |
1226 zfsctl_create(zfsvfs); | |
1227 out: | |
1228 if (error) { | |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
1229 dmu_objset_disown(zfsvfs->z_os, zfsvfs); |
9396
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PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
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diff
changeset
|
1230 zfsvfs_free(zfsvfs); |
1544 | 1231 } else { |
1232 atomic_add_32(&zfs_active_fs_count, 1); | |
1233 } | |
1234 | |
1235 return (error); | |
1236 } | |
1237 | |
1238 void | |
1239 zfs_unregister_callbacks(zfsvfs_t *zfsvfs) | |
1240 { | |
1241 objset_t *os = zfsvfs->z_os; | |
1242 struct dsl_dataset *ds; | |
1243 | |
1244 /* | |
1245 * Unregister properties. | |
1246 */ | |
1247 if (!dmu_objset_is_snapshot(os)) { | |
1248 ds = dmu_objset_ds(os); | |
1249 VERIFY(dsl_prop_unregister(ds, "atime", atime_changed_cb, | |
1250 zfsvfs) == 0); | |
1251 | |
3234 | 1252 VERIFY(dsl_prop_unregister(ds, "xattr", xattr_changed_cb, |
1253 zfsvfs) == 0); | |
1254 | |
1544 | 1255 VERIFY(dsl_prop_unregister(ds, "recordsize", blksz_changed_cb, |
1256 zfsvfs) == 0); | |
1257 | |
1258 VERIFY(dsl_prop_unregister(ds, "readonly", readonly_changed_cb, | |
1259 zfsvfs) == 0); | |
1260 | |
1261 VERIFY(dsl_prop_unregister(ds, "devices", devices_changed_cb, | |
1262 zfsvfs) == 0); | |
1263 | |
1264 VERIFY(dsl_prop_unregister(ds, "setuid", setuid_changed_cb, | |
1265 zfsvfs) == 0); | |
1266 | |
1267 VERIFY(dsl_prop_unregister(ds, "exec", exec_changed_cb, | |
1268 zfsvfs) == 0); | |
1269 | |
1270 VERIFY(dsl_prop_unregister(ds, "snapdir", snapdir_changed_cb, | |
1271 zfsvfs) == 0); | |
1272 | |
13370
8c04143bd318
742 Resurrect the ZFS "aclmode" property
Albert Lee <trisk@nexenta.com>
parents:
13178
diff
changeset
|
1273 VERIFY(dsl_prop_unregister(ds, "aclmode", acl_mode_changed_cb, |
8c04143bd318
742 Resurrect the ZFS "aclmode" property
Albert Lee <trisk@nexenta.com>
parents:
13178
diff
changeset
|
1274 zfsvfs) == 0); |
8c04143bd318
742 Resurrect the ZFS "aclmode" property
Albert Lee <trisk@nexenta.com>
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13178
diff
changeset
|
1275 |
1544 | 1276 VERIFY(dsl_prop_unregister(ds, "aclinherit", |
1277 acl_inherit_changed_cb, zfsvfs) == 0); | |
5331 | 1278 |
1279 VERIFY(dsl_prop_unregister(ds, "vscan", | |
1280 vscan_changed_cb, zfsvfs) == 0); | |
1544 | 1281 } |
1282 } | |
1283 | |
3912 | 1284 /* |
1285 * Convert a decimal digit string to a uint64_t integer. | |
1286 */ | |
1287 static int | |
1288 str_to_uint64(char *str, uint64_t *objnum) | |
1289 { | |
1290 uint64_t num = 0; | |
1291 | |
1292 while (*str) { | |
1293 if (*str < '0' || *str > '9') | |
1294 return (EINVAL); | |
1295 | |
1296 num = num*10 + *str++ - '0'; | |
1297 } | |
1298 | |
1299 *objnum = num; | |
1300 return (0); | |
1301 } | |
1302 | |
1303 /* | |
1304 * The boot path passed from the boot loader is in the form of | |
1305 * "rootpool-name/root-filesystem-object-number'. Convert this | |
1306 * string to a dataset name: "rootpool-name/root-filesystem-name". | |
1307 */ | |
1308 static int | |
6423 | 1309 zfs_parse_bootfs(char *bpath, char *outpath) |
3912 | 1310 { |
1311 char *slashp; | |
1312 uint64_t objnum; | |
1313 int error; | |
1314 | |
1315 if (*bpath == 0 || *bpath == '/') | |
1316 return (EINVAL); | |
1317 | |
7656
2621e50fdf4a
PSARC 2008/382 Fast Reboot
Sherry Moore <Sherry.Moore@Sun.COM>
parents:
7638
diff
changeset
|
1318 (void) strcpy(outpath, bpath); |
2621e50fdf4a
PSARC 2008/382 Fast Reboot
Sherry Moore <Sherry.Moore@Sun.COM>
parents:
7638
diff
changeset
|
1319 |
3912 | 1320 slashp = strchr(bpath, '/'); |
1321 | |
1322 /* if no '/', just return the pool name */ | |
1323 if (slashp == NULL) { | |
1324 return (0); | |
1325 } | |
1326 | |
7656
2621e50fdf4a
PSARC 2008/382 Fast Reboot
Sherry Moore <Sherry.Moore@Sun.COM>
parents:
7638
diff
changeset
|
1327 /* 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
|
1328 if (str_to_uint64(slashp+1, &objnum)) { |
2621e50fdf4a
PSARC 2008/382 Fast Reboot
Sherry Moore <Sherry.Moore@Sun.COM>
parents:
7638
diff
changeset
|
1329 return (0); |
2621e50fdf4a
PSARC 2008/382 Fast Reboot
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parents:
7638
diff
changeset
|
1330 } |
3912 | 1331 |
1332 *slashp = '\0'; | |
1333 error = dsl_dsobj_to_dsname(bpath, objnum, outpath); | |
1334 *slashp = '/'; | |
1335 | |
1336 return (error); | |
1337 } | |
1338 | |
10972
807794d41b3a
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diff
changeset
|
1339 /* |
807794d41b3a
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diff
changeset
|
1340 * zfs_check_global_label: |
807794d41b3a
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diff
changeset
|
1341 * Check that the hex label string is appropriate for the dataset |
807794d41b3a
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10793
diff
changeset
|
1342 * being mounted into the global_zone proper. |
807794d41b3a
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diff
changeset
|
1343 * |
807794d41b3a
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parents:
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diff
changeset
|
1344 * 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
|
1345 * admin_low/admin_high. For admin_low labels, the corresponding |
807794d41b3a
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diff
changeset
|
1346 * dataset must be readonly. |
807794d41b3a
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diff
changeset
|
1347 */ |
807794d41b3a
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diff
changeset
|
1348 int |
807794d41b3a
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10793
diff
changeset
|
1349 zfs_check_global_label(const char *dsname, const char *hexsl) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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diff
changeset
|
1350 { |
807794d41b3a
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diff
changeset
|
1351 if (strcasecmp(hexsl, ZFS_MLSLABEL_DEFAULT) == 0) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
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diff
changeset
|
1352 return (0); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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10793
diff
changeset
|
1353 if (strcasecmp(hexsl, ADMIN_HIGH) == 0) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1354 return (0); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1355 if (strcasecmp(hexsl, ADMIN_LOW) == 0) { |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
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diff
changeset
|
1356 /* must be readonly */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
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diff
changeset
|
1357 uint64_t rdonly; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
10793
diff
changeset
|
1358 |
807794d41b3a
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parents:
10793
diff
changeset
|
1359 if (dsl_prop_get_integer(dsname, |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
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10793
diff
changeset
|
1360 zfs_prop_to_name(ZFS_PROP_READONLY), &rdonly, NULL)) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
10793
diff
changeset
|
1361 return (EACCES); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
10793
diff
changeset
|
1362 return (rdonly ? 0 : EACCES); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
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diff
changeset
|
1363 } |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
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diff
changeset
|
1364 return (EACCES); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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diff
changeset
|
1365 } |
807794d41b3a
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changeset
|
1366 |
807794d41b3a
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diff
changeset
|
1367 /* |
807794d41b3a
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diff
changeset
|
1368 * zfs_mount_label_policy: |
807794d41b3a
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diff
changeset
|
1369 * Determine whether the mount is allowed according to MAC check. |
807794d41b3a
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diff
changeset
|
1370 * by comparing (where appropriate) label of the dataset against |
807794d41b3a
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diff
changeset
|
1371 * the label of the zone being mounted into. If the dataset has |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
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diff
changeset
|
1372 * no label, create one. |
807794d41b3a
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diff
changeset
|
1373 * |
807794d41b3a
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diff
changeset
|
1374 * Returns: |
807794d41b3a
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diff
changeset
|
1375 * 0 : access allowed |
807794d41b3a
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diff
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|
1376 * >0 : error code, such as EACCES |
807794d41b3a
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diff
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|
1377 */ |
807794d41b3a
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diff
changeset
|
1378 static int |
807794d41b3a
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diff
changeset
|
1379 zfs_mount_label_policy(vfs_t *vfsp, char *osname) |
807794d41b3a
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|
1380 { |
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changeset
|
1381 int error, retv; |
807794d41b3a
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|
1382 zone_t *mntzone = NULL; |
807794d41b3a
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diff
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|
1383 ts_label_t *mnt_tsl; |
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diff
changeset
|
1384 bslabel_t *mnt_sl; |
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diff
changeset
|
1385 bslabel_t ds_sl; |
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diff
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|
1386 char ds_hexsl[MAXNAMELEN]; |
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|
1387 |
807794d41b3a
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changeset
|
1388 retv = EACCES; /* assume the worst */ |
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|
1389 |
807794d41b3a
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changeset
|
1390 /* |
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changeset
|
1391 * Start by getting the dataset label if it exists. |
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diff
changeset
|
1392 */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1393 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
|
1394 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
|
1395 if (error) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1396 return (EACCES); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1397 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1398 /* |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1399 * 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
|
1400 * 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
|
1401 * are needed. |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1402 */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
10793
diff
changeset
|
1403 if (!is_system_labeled()) { |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1404 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
|
1405 return (0); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1406 return (EACCES); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1407 } |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1408 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1409 /* |
807794d41b3a
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parents:
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diff
changeset
|
1410 * 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
|
1411 * 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
|
1412 * 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
|
1413 * 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
|
1414 */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1415 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
|
1416 if (mntzone->zone_id == GLOBAL_ZONEID) { |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1417 uint64_t zoned; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1418 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
10793
diff
changeset
|
1419 zone_rele(mntzone); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1420 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1421 if (dsl_prop_get_integer(osname, |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1422 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
|
1423 return (EACCES); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1424 if (!zoned) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1425 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
|
1426 else |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1427 /* |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
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parents:
10793
diff
changeset
|
1428 * 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
|
1429 * 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
|
1430 * allow this mount into global zone. |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1431 */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1432 return (0); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1433 } |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
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diff
changeset
|
1434 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1435 mnt_tsl = mntzone->zone_slabel; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1436 ASSERT(mnt_tsl != NULL); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1437 label_hold(mnt_tsl); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1438 mnt_sl = label2bslabel(mnt_tsl); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1439 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1440 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
|
1441 /* |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1442 * 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
|
1443 */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1444 char *str = NULL; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1445 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1446 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
|
1447 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
|
1448 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
|
1449 retv = 0; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1450 if (str != NULL) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1451 kmem_free(str, strlen(str) + 1); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1452 } 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
|
1453 /* |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1454 * 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
|
1455 * 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
|
1456 * 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
|
1457 * Otherwise, access is denied. |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1458 */ |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1459 if (blequal(mnt_sl, &ds_sl)) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1460 retv = 0; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1461 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
|
1462 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
|
1463 retv = 0; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1464 } |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1465 } |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1466 |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1467 label_rele(mnt_tsl); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1468 zone_rele(mntzone); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1469 return (retv); |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1470 } |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1471 |
1544 | 1472 static int |
1473 zfs_mountroot(vfs_t *vfsp, enum whymountroot why) | |
1474 { | |
1475 int error = 0; | |
1476 static int zfsrootdone = 0; | |
1477 zfsvfs_t *zfsvfs = NULL; | |
1478 znode_t *zp = NULL; | |
1479 vnode_t *vp = NULL; | |
6423 | 1480 char *zfs_bootfs; |
7147
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1481 char *zfs_devid; |
1544 | 1482 |
1483 ASSERT(vfsp); | |
1484 | |
1485 /* | |
3912 | 1486 * The filesystem that we mount as root is defined in the |
6423 | 1487 * boot property "zfs-bootfs" with a format of |
1488 * "poolname/root-dataset-objnum". | |
1544 | 1489 */ |
1490 if (why == ROOT_INIT) { | |
1491 if (zfsrootdone++) | |
1492 return (EBUSY); | |
6423 | 1493 /* |
1494 * the process of doing a spa_load will require the | |
1495 * clock to be set before we could (for example) do | |
1496 * something better by looking at the timestamp on | |
1497 * an uberblock, so just set it to -1. | |
1498 */ | |
1499 clkset(-1); | |
1544 | 1500 |
7147
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1501 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
|
1502 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
|
1503 "bootfs name"); |
6423 | 1504 return (EINVAL); |
5648 | 1505 } |
7147
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1506 zfs_devid = spa_get_bootprop("diskdevid"); |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1507 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
|
1508 if (zfs_devid) |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1509 spa_free_bootprop(zfs_devid); |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1510 if (error) { |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1511 spa_free_bootprop(zfs_bootfs); |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1512 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
|
1513 error); |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1514 return (error); |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1515 } |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1516 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
|
1517 spa_free_bootprop(zfs_bootfs); |
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1518 cmn_err(CE_NOTE, "zfs_parse_bootfs: error %d", |
6423 | 1519 error); |
1520 return (error); | |
1521 } | |
3912 | 1522 |
7147
1e1d75c88283
6704717 ZFS mirrored root doesn't live up to expectations
taylor
parents:
7046
diff
changeset
|
1523 spa_free_bootprop(zfs_bootfs); |
1544 | 1524 |
1525 if (error = vfs_lock(vfsp)) | |
1526 return (error); | |
1527 | |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6689
diff
changeset
|
1528 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
|
1529 cmn_err(CE_NOTE, "zfs_domount: error %d", error); |
1544 | 1530 goto out; |
6423 | 1531 } |
1544 | 1532 |
1533 zfsvfs = (zfsvfs_t *)vfsp->vfs_data; | |
1534 ASSERT(zfsvfs); | |
6423 | 1535 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
|
1536 cmn_err(CE_NOTE, "zfs_zget: error %d", error); |
1544 | 1537 goto out; |
6423 | 1538 } |
1544 | 1539 |
1540 vp = ZTOV(zp); | |
1541 mutex_enter(&vp->v_lock); | |
1542 vp->v_flag |= VROOT; | |
1543 mutex_exit(&vp->v_lock); | |
1544 rootvp = vp; | |
1545 | |
1546 /* | |
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
|
1547 * Leave rootvp held. The root file system is never unmounted. |
1544 | 1548 */ |
1549 | |
1550 vfs_add((struct vnode *)0, vfsp, | |
1551 (vfsp->vfs_flag & VFS_RDONLY) ? MS_RDONLY : 0); | |
1552 out: | |
1553 vfs_unlock(vfsp); | |
6423 | 1554 return (error); |
1544 | 1555 } else if (why == ROOT_REMOUNT) { |
1556 readonly_changed_cb(vfsp->vfs_data, B_FALSE); | |
1557 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
|
1558 |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1559 /* refresh mount options */ |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1560 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
|
1561 return (zfs_register_callbacks(vfsp)); |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1562 |
1544 | 1563 } else if (why == ROOT_UNMOUNT) { |
1564 zfs_unregister_callbacks((zfsvfs_t *)vfsp->vfs_data); | |
1565 (void) zfs_sync(vfsp, 0, 0); | |
1566 return (0); | |
1567 } | |
1568 | |
1569 /* | |
1570 * if "why" is equal to anything else other than ROOT_INIT, | |
1571 * ROOT_REMOUNT, or ROOT_UNMOUNT, we do not support it. | |
1572 */ | |
1573 return (ENOTSUP); | |
1574 } | |
1575 | |
789 | 1576 /*ARGSUSED*/ |
1577 static int | |
1578 zfs_mount(vfs_t *vfsp, vnode_t *mvp, struct mounta *uap, cred_t *cr) | |
1579 { | |
1580 char *osname; | |
1581 pathname_t spn; | |
1582 int error = 0; | |
1583 uio_seg_t fromspace = (uap->flags & MS_SYSSPACE) ? | |
3912 | 1584 UIO_SYSSPACE : UIO_USERSPACE; |
789 | 1585 int canwrite; |
1586 | |
1587 if (mvp->v_type != VDIR) | |
1588 return (ENOTDIR); | |
1589 | |
1590 mutex_enter(&mvp->v_lock); | |
1591 if ((uap->flags & MS_REMOUNT) == 0 && | |
1592 (uap->flags & MS_OVERLAY) == 0 && | |
1593 (mvp->v_count != 1 || (mvp->v_flag & VROOT))) { | |
1594 mutex_exit(&mvp->v_lock); | |
1595 return (EBUSY); | |
1596 } | |
1597 mutex_exit(&mvp->v_lock); | |
1598 | |
1599 /* | |
1600 * ZFS does not support passing unparsed data in via MS_DATA. | |
1601 * Users should use the MS_OPTIONSTR interface; this means | |
1602 * that all option parsing is already done and the options struct | |
1603 * can be interrogated. | |
1604 */ | |
1605 if ((uap->flags & MS_DATA) && uap->datalen > 0) | |
1606 return (EINVAL); | |
1607 | |
1608 /* | |
1609 * Get the objset name (the "special" mount argument). | |
1610 */ | |
1611 if (error = pn_get(uap->spec, fromspace, &spn)) | |
1612 return (error); | |
1613 | |
1614 osname = spn.pn_path; | |
1615 | |
4543 | 1616 /* |
1617 * Check for mount privilege? | |
1618 * | |
1619 * If we don't have privilege then see if | |
1620 * we have local permission to allow it | |
1621 */ | |
1622 error = secpolicy_fs_mount(cr, mvp, vfsp); | |
1623 if (error) { | |
11824
53128e5db7cf
6863610 ZFS mount can lose correct error return
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11539
diff
changeset
|
1624 if (dsl_deleg_access(osname, ZFS_DELEG_PERM_MOUNT, cr) == 0) { |
4543 | 1625 vattr_t vattr; |
1626 | |
1627 /* | |
1628 * Make sure user is the owner of the mount point | |
1629 * or has sufficient privileges. | |
1630 */ | |
1631 | |
1632 vattr.va_mask = AT_UID; | |
1633 | |
11824
53128e5db7cf
6863610 ZFS mount can lose correct error return
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11539
diff
changeset
|
1634 if (VOP_GETATTR(mvp, &vattr, 0, cr, NULL)) { |
4543 | 1635 goto out; |
1636 } | |
1637 | |
5489
25bfaf065197
6601830 mismatch between zfs_mount() behavior and comment
marks
parents:
5446
diff
changeset
|
1638 if (secpolicy_vnode_owner(cr, vattr.va_uid) != 0 && |
25bfaf065197
6601830 mismatch between zfs_mount() behavior and comment
marks
parents:
5446
diff
changeset
|
1639 VOP_ACCESS(mvp, VWRITE, 0, cr, NULL) != 0) { |
4543 | 1640 goto out; |
1641 } | |
1642 secpolicy_fs_mount_clearopts(cr, vfsp); | |
1643 } else { | |
1644 goto out; | |
1645 } | |
1646 } | |
789 | 1647 |
1648 /* | |
1649 * Refuse to mount a filesystem if we are in a local zone and the | |
1650 * dataset is not visible. | |
1651 */ | |
1652 if (!INGLOBALZONE(curproc) && | |
1653 (!zone_dataset_visible(osname, &canwrite) || !canwrite)) { | |
1654 error = EPERM; | |
1655 goto out; | |
1656 } | |
1657 | |
10972
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1658 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
|
1659 if (error) |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1660 goto out; |
807794d41b3a
PSARC 2009/348 Security Labels for ZFS
Ric Aleshire <Ric.Aleshire@Sun.COM>
parents:
10793
diff
changeset
|
1661 |
4596
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
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parents:
4577
diff
changeset
|
1662 /* |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
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parents:
4577
diff
changeset
|
1663 * 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
|
1664 * 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
|
1665 */ |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1666 if (uap->flags & MS_REMOUNT) { |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1667 /* refresh mount options */ |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1668 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
|
1669 error = zfs_register_callbacks(vfsp); |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1670 goto out; |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1671 } |
3aa6e3b5dfca
6561658 xattrs aren't enabled on zfs root filesystem, weirdness with mount output
lling
parents:
4577
diff
changeset
|
1672 |
7046
361307ae060d
6343667 scrub/resilver has to start over when a snapshot is taken
ahrens
parents:
6689
diff
changeset
|
1673 error = zfs_domount(vfsp, osname); |
789 | 1674 |
9214
8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy
Chris Kirby <chris.kirby@sun.com>
parents:
9179
diff
changeset
|
1675 /* |
8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy
Chris Kirby <chris.kirby@sun.com>
parents:
9179
diff
changeset
|
1676 * 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
|
1677 * 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
|
1678 */ |
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
|
1679 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
|
1680 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
|
1681 |
789 | 1682 out: |
1683 pn_free(&spn); | |
1684 return (error); | |
1685 } | |
1686 | |
1687 static int | |
1688 zfs_statvfs(vfs_t *vfsp, struct statvfs64 *statp) | |
1689 { | |
1690 zfsvfs_t *zfsvfs = vfsp->vfs_data; | |
1691 dev32_t d32; | |
2885 | 1692 uint64_t refdbytes, availbytes, usedobjs, availobjs; |
789 | 1693 |
1694 ZFS_ENTER(zfsvfs); | |
1695 | |
2885 | 1696 dmu_objset_space(zfsvfs->z_os, |
1697 &refdbytes, &availbytes, &usedobjs, &availobjs); | |
789 | 1698 |
1699 /* | |
1700 * The underlying storage pool actually uses multiple block sizes. | |
1701 * We report the fragsize as the smallest block size we support, | |
1702 * and we report our blocksize as the filesystem's maximum blocksize. | |
1703 */ | |
1704 statp->f_frsize = 1UL << SPA_MINBLOCKSHIFT; | |
1705 statp->f_bsize = zfsvfs->z_max_blksz; | |
1706 | |
1707 /* | |
1708 * The following report "total" blocks of various kinds in the | |
1709 * file system, but reported in terms of f_frsize - the | |
1710 * "fragment" size. | |
1711 */ | |
1712 | |
2885 | 1713 statp->f_blocks = (refdbytes + availbytes) >> SPA_MINBLOCKSHIFT; |
1714 statp->f_bfree = availbytes >> SPA_MINBLOCKSHIFT; | |
789 | 1715 statp->f_bavail = statp->f_bfree; /* no root reservation */ |
1716 | |
1717 /* | |
1718 * statvfs() should really be called statufs(), because it assumes | |
1719 * static metadata. ZFS doesn't preallocate files, so the best | |
1720 * we can do is report the max that could possibly fit in f_files, | |
1721 * and that minus the number actually used in f_ffree. | |
1722 * For f_ffree, report the smaller of the number of object available | |
1723 * and the number of blocks (each object will take at least a block). | |
1724 */ | |
2885 | 1725 statp->f_ffree = MIN(availobjs, statp->f_bfree); |
789 | 1726 statp->f_favail = statp->f_ffree; /* no "root reservation" */ |
2885 | 1727 statp->f_files = statp->f_ffree + usedobjs; |
789 | 1728 |
1729 (void) cmpldev(&d32, vfsp->vfs_dev); | |
1730 statp->f_fsid = d32; | |
1731 | |
1732 /* | |
1733 * We're a zfs filesystem. | |
1734 */ | |
1735 (void) strcpy(statp->f_basetype, vfssw[vfsp->vfs_fstype].vsw_name); | |
1736 | |
1123
02a0390fbc7d
6363529 UNIX03/UNIX98 *vsx* CAPI.os/files/fstatvfs/T.fstatvfs 11 FAILS
marks
parents:
849
diff
changeset
|
1737 statp->f_flag = vf_to_stf(vfsp->vfs_flag); |
789 | 1738 |
1739 statp->f_namemax = ZFS_MAXNAMELEN; | |
1740 | |
1741 /* | |
1742 * We have all of 32 characters to stuff a string here. | |
1743 * Is there anything useful we could/should provide? | |
1744 */ | |
1745 bzero(statp->f_fstr, sizeof (statp->f_fstr)); | |
1746 | |
1747 ZFS_EXIT(zfsvfs); | |
1748 return (0); | |
1749 } | |
1750 | |
1751 static int | |
1752 zfs_root(vfs_t *vfsp, vnode_t **vpp) | |
1753 { | |
1754 zfsvfs_t *zfsvfs = vfsp->vfs_data; | |
1755 znode_t *rootzp; | |
1756 int error; | |
1757 | |
1758 ZFS_ENTER(zfsvfs); | |
1759 | |
1760 error = zfs_zget(zfsvfs, zfsvfs->z_root, &rootzp); | |
1761 if (error == 0) | |
1762 *vpp = ZTOV(rootzp); | |
1763 | |
1764 ZFS_EXIT(zfsvfs); | |
1765 return (error); | |
1766 } | |
1767 | |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1768 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1769 * Teardown the zfsvfs::z_os. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1770 * |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1771 * 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
|
1772 * and 'z_teardown_inactive_lock' held. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1773 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1774 static int |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1775 zfsvfs_teardown(zfsvfs_t *zfsvfs, boolean_t unmounting) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1776 { |
5642
504c84876fda
6513209 Destroying pools under stress caused a hang in arc_flush
maybee
parents:
5498
diff
changeset
|
1777 znode_t *zp; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1778 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1779 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
|
1780 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1781 if (!unmounting) { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1782 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1783 * 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
|
1784 * 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
|
1785 * 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
|
1786 * 'z_parent' is self referential for non-snapshots. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1787 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1788 (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
|
1789 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1790 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1791 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1792 * 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
|
1793 * 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
|
1794 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1795 if (zfsvfs->z_log) { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1796 zil_close(zfsvfs->z_log); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1797 zfsvfs->z_log = NULL; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1798 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1799 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1800 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
|
1801 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1802 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1803 * 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
|
1804 * 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
|
1805 * 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
|
1806 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1807 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
|
1808 rw_exit(&zfsvfs->z_teardown_inactive_lock); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
1809 rrw_exit(&zfsvfs->z_teardown_lock, FTAG); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
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diff
changeset
|
1810 return (EIO); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
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diff
changeset
|
1811 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
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diff
changeset
|
1812 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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parents:
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diff
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|
1813 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
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parents:
5147
diff
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|
1814 * 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
|
1815 * fail with EIO since we have z_teardown_lock for writer (only |
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1816 * relavent for forced unmount). |
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1817 * |
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1818 * Release all holds on dbufs. |
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1819 */ |
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1820 mutex_enter(&zfsvfs->z_znodes_lock); |
5642
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1821 for (zp = list_head(&zfsvfs->z_all_znodes); zp != NULL; |
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1822 zp = list_next(&zfsvfs->z_all_znodes, zp)) |
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1823 if (zp->z_sa_hdl) { |
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1824 ASSERT(ZTOV(zp)->v_count > 0); |
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1825 zfs_znode_dmu_fini(zp); |
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1826 } |
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1827 mutex_exit(&zfsvfs->z_znodes_lock); |
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1828 |
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1829 /* |
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1830 * If we are unmounting, set the unmounted flag and let new vops |
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1831 * unblock. zfs_inactive will have the unmounted behavior, and all |
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1832 * other vops will fail with EIO. |
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1833 */ |
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1834 if (unmounting) { |
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1835 zfsvfs->z_unmounted = B_TRUE; |
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1836 rrw_exit(&zfsvfs->z_teardown_lock, FTAG); |
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1837 rw_exit(&zfsvfs->z_teardown_inactive_lock); |
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1838 } |
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1839 |
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1840 /* |
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1841 * z_os will be NULL if there was an error in attempting to reopen |
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1842 * zfsvfs, so just return as the properties had already been |
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1843 * unregistered and cached data had been evicted before. |
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1844 */ |
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1845 if (zfsvfs->z_os == NULL) |
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1846 return (0); |
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1847 |
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1848 /* |
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1849 * Unregister properties. |
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1850 */ |
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1851 zfs_unregister_callbacks(zfsvfs); |
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1852 |
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1853 /* |
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1854 * Evict cached data |
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1855 */ |
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1856 if (dsl_dataset_is_dirty(dmu_objset_ds(zfsvfs->z_os)) && |
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1857 !(zfsvfs->z_vfs->vfs_flag & VFS_RDONLY)) |
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1858 txg_wait_synced(dmu_objset_pool(zfsvfs->z_os), 0); |
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1859 (void) dmu_objset_evict_dbufs(zfsvfs->z_os); |
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1860 |
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1861 return (0); |
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1862 } |
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1863 |
789 | 1864 /*ARGSUSED*/ |
1865 static int | |
1866 zfs_umount(vfs_t *vfsp, int fflag, cred_t *cr) | |
1867 { | |
1868 zfsvfs_t *zfsvfs = vfsp->vfs_data; | |
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1869 objset_t *os; |
789 | 1870 int ret; |
1871 | |
4543 | 1872 ret = secpolicy_fs_unmount(cr, vfsp); |
1873 if (ret) { | |
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1874 if (dsl_deleg_access((char *)refstr_value(vfsp->vfs_resource), |
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1875 ZFS_DELEG_PERM_MOUNT, cr)) |
4543 | 1876 return (ret); |
1877 } | |
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1878 |
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1879 /* |
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1880 * We purge the parent filesystem's vfsp as the parent filesystem |
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1881 * and all of its snapshots have their vnode's v_vfsp set to the |
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1882 * parent's filesystem's vfsp. Note, 'z_parent' is self |
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1883 * referential for non-snapshots. |
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1884 */ |
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1885 (void) dnlc_purge_vfsp(zfsvfs->z_parent->z_vfs, 0); |
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1886 |
789 | 1887 /* |
1888 * Unmount any snapshots mounted under .zfs before unmounting the | |
1889 * dataset itself. | |
1890 */ | |
1891 if (zfsvfs->z_ctldir != NULL && | |
4543 | 1892 (ret = zfsctl_umount_snapshots(vfsp, fflag, cr)) != 0) { |
789 | 1893 return (ret); |
4543 | 1894 } |
789 | 1895 |
4787 | 1896 if (!(fflag & MS_FORCE)) { |
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1897 /* |
4787 | 1898 * Check the number of active vnodes in the file system. |
1899 * Our count is maintained in the vfs structure, but the | |
1900 * number is off by 1 to indicate a hold on the vfs | |
1901 * structure itself. | |
1902 * | |
1903 * The '.zfs' directory maintains a reference of its | |
1904 * own, and any active references underneath are | |
1905 * reflected in the vnode count. | |
789 | 1906 */ |
4787 | 1907 if (zfsvfs->z_ctldir == NULL) { |
1908 if (vfsp->vfs_count > 1) | |
1909 return (EBUSY); | |
1910 } else { | |
1911 if (vfsp->vfs_count > 2 || | |
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1912 zfsvfs->z_ctldir->v_count > 1) |
4787 | 1913 return (EBUSY); |
789 | 1914 } |
1915 } | |
1916 | |
1917 vfsp->vfs_flag |= VFS_UNMOUNTED; | |
4787 | 1918 |
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1919 VERIFY(zfsvfs_teardown(zfsvfs, B_TRUE) == 0); |
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1920 os = zfsvfs->z_os; |
4787 | 1921 |
1922 /* | |
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1923 * z_os will be NULL if there was an error in |
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1924 * attempting to reopen zfsvfs. |
4787 | 1925 */ |
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1926 if (os != NULL) { |
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1927 /* |
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1928 * Unset the objset user_ptr. |
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1929 */ |
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1930 mutex_enter(&os->os_user_ptr_lock); |
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1931 dmu_objset_set_user(os, NULL); |
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1932 mutex_exit(&os->os_user_ptr_lock); |
4787 | 1933 |
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1934 /* |
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1935 * Finally release the objset |
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1936 */ |
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1937 dmu_objset_disown(os, zfsvfs); |
4787 | 1938 } |
1939 | |
1940 /* | |
1941 * We can now safely destroy the '.zfs' directory node. | |
1942 */ | |
1943 if (zfsvfs->z_ctldir != NULL) | |
1944 zfsctl_destroy(zfsvfs); | |
789 | 1945 |
1946 return (0); | |
1947 } | |
1948 | |
1949 static int | |
1950 zfs_vget(vfs_t *vfsp, vnode_t **vpp, fid_t *fidp) | |
1951 { | |
1952 zfsvfs_t *zfsvfs = vfsp->vfs_data; | |
1953 znode_t *zp; | |
1954 uint64_t object = 0; | |
1955 uint64_t fid_gen = 0; | |
1956 uint64_t gen_mask; | |
1957 uint64_t zp_gen; | |
1958 int i, err; | |
1959 | |
1960 *vpp = NULL; | |
1961 | |
1962 ZFS_ENTER(zfsvfs); | |
1963 | |
1964 if (fidp->fid_len == LONG_FID_LEN) { | |
1965 zfid_long_t *zlfid = (zfid_long_t *)fidp; | |
1966 uint64_t objsetid = 0; | |
1967 uint64_t setgen = 0; | |
1968 | |
1969 for (i = 0; i < sizeof (zlfid->zf_setid); i++) | |
1970 objsetid |= ((uint64_t)zlfid->zf_setid[i]) << (8 * i); | |
1971 | |
1972 for (i = 0; i < sizeof (zlfid->zf_setgen); i++) | |
1973 setgen |= ((uint64_t)zlfid->zf_setgen[i]) << (8 * i); | |
1974 | |
1975 ZFS_EXIT(zfsvfs); | |
1976 | |
1977 err = zfsctl_lookup_objset(vfsp, objsetid, &zfsvfs); | |
1978 if (err) | |
1979 return (EINVAL); | |
1980 ZFS_ENTER(zfsvfs); | |
1981 } | |
1982 | |
1983 if (fidp->fid_len == SHORT_FID_LEN || fidp->fid_len == LONG_FID_LEN) { | |
1984 zfid_short_t *zfid = (zfid_short_t *)fidp; | |
1985 | |
1986 for (i = 0; i < sizeof (zfid->zf_object); i++) | |
1987 object |= ((uint64_t)zfid->zf_object[i]) << (8 * i); | |
1988 | |
1989 for (i = 0; i < sizeof (zfid->zf_gen); i++) | |
1990 fid_gen |= ((uint64_t)zfid->zf_gen[i]) << (8 * i); | |
1991 } else { | |
1992 ZFS_EXIT(zfsvfs); | |
1993 return (EINVAL); | |
1994 } | |
1995 | |
1996 /* A zero fid_gen means we are in the .zfs control directories */ | |
1997 if (fid_gen == 0 && | |
1998 (object == ZFSCTL_INO_ROOT || object == ZFSCTL_INO_SNAPDIR)) { | |
1999 *vpp = zfsvfs->z_ctldir; | |
2000 ASSERT(*vpp != NULL); | |
2001 if (object == ZFSCTL_INO_SNAPDIR) { | |
2002 VERIFY(zfsctl_root_lookup(*vpp, "snapshot", vpp, NULL, | |
5331 | 2003 0, NULL, NULL, NULL, NULL, NULL) == 0); |
789 | 2004 } else { |
2005 VN_HOLD(*vpp); | |
2006 } | |
2007 ZFS_EXIT(zfsvfs); | |
2008 return (0); | |
2009 } | |
2010 | |
2011 gen_mask = -1ULL >> (64 - 8 * i); | |
2012 | |
2013 dprintf("getting %llu [%u mask %llx]\n", object, fid_gen, gen_mask); | |
2014 if (err = zfs_zget(zfsvfs, object, &zp)) { | |
2015 ZFS_EXIT(zfsvfs); | |
2016 return (err); | |
2017 } | |
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2018 (void) sa_lookup(zp->z_sa_hdl, SA_ZPL_GEN(zfsvfs), &zp_gen, |
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2019 sizeof (uint64_t)); |
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2020 zp_gen = zp_gen & gen_mask; |
789 | 2021 if (zp_gen == 0) |
2022 zp_gen = 1; | |
3461 | 2023 if (zp->z_unlinked || zp_gen != fid_gen) { |
789 | 2024 dprintf("znode gen (%u) != fid gen (%u)\n", zp_gen, fid_gen); |
2025 VN_RELE(ZTOV(zp)); | |
2026 ZFS_EXIT(zfsvfs); | |
2027 return (EINVAL); | |
2028 } | |
2029 | |
2030 *vpp = ZTOV(zp); | |
2031 ZFS_EXIT(zfsvfs); | |
2032 return (0); | |
2033 } | |
2034 | |
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2035 /* |
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2036 * Block out VOPs and close zfsvfs_t::z_os |
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2037 * |
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2038 * Note, if successful, then we return with the 'z_teardown_lock' and |
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2039 * 'z_teardown_inactive_lock' write held. |
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2040 */ |
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2041 int |
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changeset
|
2042 zfs_suspend_fs(zfsvfs_t *zfsvfs) |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2043 { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2044 int error; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2045 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2046 if ((error = zfsvfs_teardown(zfsvfs, B_FALSE)) != 0) |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2047 return (error); |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
2048 dmu_objset_disown(zfsvfs->z_os, zfsvfs); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2049 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2050 return (0); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2051 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2052 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2053 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2054 * Reopen zfsvfs_t::z_os and release VOPs. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2055 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2056 int |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
2057 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
|
2058 { |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2059 int err; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2060 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2061 ASSERT(RRW_WRITE_HELD(&zfsvfs->z_teardown_lock)); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2062 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
|
2063 |
10298
a0d52501437c
6860996 %temporary clones are not automatically destroyed on error
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
10204
diff
changeset
|
2064 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
|
2065 &zfsvfs->z_os); |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2066 if (err) { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2067 zfsvfs->z_os = NULL; |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2068 } else { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2069 znode_t *zp; |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2070 uint64_t sa_obj = 0; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2071 |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2072 /* |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2073 * Make sure version hasn't changed |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2074 */ |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2075 |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2076 err = zfs_get_zplprop(zfsvfs->z_os, ZFS_PROP_VERSION, |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2077 &zfsvfs->z_version); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2078 |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2079 if (err) |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2080 goto bail; |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2081 |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2082 err = zap_lookup(zfsvfs->z_os, MASTER_NODE_OBJ, |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2083 ZFS_SA_ATTRS, 8, 1, &sa_obj); |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2084 |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2085 if (err && zfsvfs->z_version >= ZPL_VERSION_SA) |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2086 goto bail; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2087 |
12493
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
2088 if ((err = sa_setup(zfsvfs->z_os, sa_obj, |
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
2089 zfs_attr_table, ZPL_END, &zfsvfs->z_attr_table)) != 0) |
89ce40422cea
6952177 SA handling of on-disk corruption can be improved
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
12296
diff
changeset
|
2090 goto bail; |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2091 |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2092 if (zfsvfs->z_version >= ZPL_VERSION_SA) |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2093 sa_register_update_callback(zfsvfs->z_os, |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2094 zfs_sa_upgrade); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2095 |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2096 VERIFY(zfsvfs_setup(zfsvfs, B_FALSE) == 0); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2097 |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2098 zfs_set_fuid_feature(zfsvfs); |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2099 |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2100 /* |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2101 * 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
|
2102 * 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
|
2103 * 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
|
2104 * when they try to use their znode. |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2105 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2106 mutex_enter(&zfsvfs->z_znodes_lock); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2107 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
|
2108 zp = list_next(&zfsvfs->z_all_znodes, zp)) { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2109 (void) zfs_rezget(zp); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2110 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2111 mutex_exit(&zfsvfs->z_znodes_lock); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2112 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2113 |
11935
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
Mark Shellenbaum <Mark.Shellenbaum@Sun.COM>
parents:
11824
diff
changeset
|
2114 bail: |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2115 /* release the VOPs */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2116 rw_exit(&zfsvfs->z_teardown_inactive_lock); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2117 rrw_exit(&zfsvfs->z_teardown_lock, FTAG); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2118 |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2119 if (err) { |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2120 /* |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2121 * Since we couldn't reopen zfsvfs::z_os, or |
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
parents:
13081
diff
changeset
|
2122 * setup the sa framework force unmount this file system. |
5326
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2123 */ |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2124 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
|
2125 (void) dounmount(zfsvfs->z_vfs, MS_FORCE, CRED()); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2126 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2127 return (err); |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2128 } |
6752aa2bd5bc
6425096 want online 'zfs recv' (read only and read/write)
ek110237
parents:
5147
diff
changeset
|
2129 |
789 | 2130 static void |
2131 zfs_freevfs(vfs_t *vfsp) | |
2132 { | |
2133 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
|
2134 |
8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy
Chris Kirby <chris.kirby@sun.com>
parents:
9179
diff
changeset
|
2135 /* |
8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy
Chris Kirby <chris.kirby@sun.com>
parents:
9179
diff
changeset
|
2136 * If this is a snapshot, we have an extra VFS_HOLD on our parent |
12095
6596d5361407
6891449 zvol_strategy() check for zv == NULL too late
Chris Kirby <Chris.Kirby@sun.com>
parents:
12070
diff
changeset
|
2137 * from zfs_mount(). Release it here. If we came through |
6596d5361407
6891449 zvol_strategy() check for zv == NULL too late
Chris Kirby <Chris.Kirby@sun.com>
parents:
12070
diff
changeset
|
2138 * zfs_mountroot() instead, we didn't grab an extra hold, so |
6596d5361407
6891449 zvol_strategy() check for zv == NULL too late
Chris Kirby <Chris.Kirby@sun.com>
parents:
12070
diff
changeset
|
2139 * skip the VFS_RELE for rootvfs. |
9214
8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy
Chris Kirby <chris.kirby@sun.com>
parents:
9179
diff
changeset
|
2140 */ |
12095
6596d5361407
6891449 zvol_strategy() check for zv == NULL too late
Chris Kirby <Chris.Kirby@sun.com>
parents:
12070
diff
changeset
|
2141 if (zfsvfs->z_issnap && (vfsp != rootvfs)) |
9214
8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy
Chris Kirby <chris.kirby@sun.com>
parents:
9179
diff
changeset
|
2142 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
|
2143 |
9396
f41cf682d0d3
PSARC/2009/204 ZFS user/group quotas & space accounting
Matthew Ahrens <Matthew.Ahrens@Sun.COM>
parents:
9292
diff
changeset
|
2144 zfsvfs_free(zfsvfs); |
789 | 2145 |
2146 atomic_add_32(&zfs_active_fs_count, -1); | |
2147 } | |
2148 | |
2149 /* | |
2150 * VFS_INIT() initialization. Note that there is no VFS_FINI(), | |
2151 * so we can't safely do any non-idempotent initialization here. | |
2152 * Leave that to zfs_init() and zfs_fini(), which are called | |
2153 * from the module's _init() and _fini() entry points. | |
2154 */ | |
2155 /*ARGSUSED*/ | |
2156 static int | |
2157 zfs_vfsinit(int fstype, char *name) | |
2158 { | |
2159 int error; | |
2160 | |
2161 zfsfstype = fstype; | |
2162 | |
2163 /* | |
2164 * Setup vfsops and vnodeops tables. | |
2165 */ | |
2166 error = vfs_setfsops(fstype, zfs_vfsops_template, &zfs_vfsops); | |
2167 if (error != 0) { | |
2168 cmn_err(CE_WARN, "zfs: bad vfs ops template"); | |
2169 } | |
2170 | |
2171 error = zfs_create_op_tables(); | |
2172 if (error) { | |
2173 zfs_remove_op_tables(); | |
2174 cmn_err(CE_WARN, "zfs: bad vnode ops template"); | |
2175 (void) vfs_freevfsops_by_type(zfsfstype); | |
2176 return (error); | |
2177 } | |
2178 | |
2179 mutex_init(&zfs_dev_mtx, NULL, MUTEX_DEFAULT, NULL); | |
2180 | |
2181 /* | |
849
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
2182 * Unique major number for all zfs mounts. |
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
2183 * If we run out of 32-bit minors, we'll getudev() another major. |
789 | 2184 */ |
849
8d799fd81a9b
6345023 /dev/zfs fails to open once ZFS module is unloaded
bonwick
parents:
789
diff
changeset
|
2185 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
|
2186 zfs_minor = ZFS_MIN_MINOR; |
789 | 2187 |
2188 return (0); | |
2189 } | |
2190 | |
2191 void | |
2192 zfs_init(void) | |
2193 { | |
2194 /* | |
2195 * Initialize .zfs directory structures | |
2196 */ | |
2197 zfsctl_init(); | |
2198 | |
2199 /* | |
2200 * Initialize znode cache, vnode ops, etc... | |
2201 */ | |
2202 zfs_znode_init(); | |
9396
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2203 |
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|
2204 dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb); |
789 | 2205 } |
2206 | |
2207 void | |
2208 zfs_fini(void) | |
2209 { | |
2210 zfsctl_fini(); | |
2211 zfs_znode_fini(); | |
2212 } | |
2213 | |
2214 int | |
2215 zfs_busy(void) | |
2216 { | |
2217 return (zfs_active_fs_count != 0); | |
2218 } | |
2219 | |
4577 | 2220 int |
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|
2221 zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers) |
4577 | 2222 { |
2223 int error; | |
9396
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|
2224 objset_t *os = zfsvfs->z_os; |
4577 | 2225 dmu_tx_t *tx; |
2226 | |
2227 if (newvers < ZPL_VERSION_INITIAL || newvers > ZPL_VERSION) | |
2228 return (EINVAL); | |
2229 | |
9396
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2230 if (newvers < zfsvfs->z_version) |
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|
2231 return (EINVAL); |
4577 | 2232 |
11935
538c866aaac6
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11824
diff
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|
2233 if (zfs_spa_version_map(newvers) > |
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2234 spa_version(dmu_objset_spa(zfsvfs->z_os))) |
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|
2235 return (ENOTSUP); |
538c866aaac6
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|
2236 |
4577 | 2237 tx = dmu_tx_create(os); |
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|
2238 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_FALSE, ZPL_VERSION_STR); |
11935
538c866aaac6
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|
2239 if (newvers >= ZPL_VERSION_SA && !zfsvfs->z_use_sa) { |
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|
2240 dmu_tx_hold_zap(tx, MASTER_NODE_OBJ, B_TRUE, |
538c866aaac6
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2241 ZFS_SA_ATTRS); |
538c866aaac6
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|
2242 dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, FALSE, NULL); |
538c866aaac6
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|
2243 } |
4577 | 2244 error = dmu_tx_assign(tx, TXG_WAIT); |
2245 if (error) { | |
2246 dmu_tx_abort(tx); | |
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|
2247 return (error); |
4577 | 2248 } |
11935
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|
2249 |
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2250 error = zap_update(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, |
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|
2251 8, 1, &newvers, tx); |
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2252 |
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2253 if (error) { |
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2254 dmu_tx_commit(tx); |
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|
2255 return (error); |
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|
2256 } |
4577 | 2257 |
11935
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|
2258 if (newvers >= ZPL_VERSION_SA && !zfsvfs->z_use_sa) { |
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|
2259 uint64_t sa_obj; |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
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|
2260 |
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|
2261 ASSERT3U(spa_version(dmu_objset_spa(zfsvfs->z_os)), >=, |
538c866aaac6
6716117 ZFS needs native system attribute infrastructure
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|
2262 SPA_VERSION_SA); |
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|
2263 sa_obj = zap_create(os, DMU_OT_SA_MASTER_NODE, |
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2264 DMU_OT_NONE, 0, tx); |
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2265 |
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2266 error = zap_add(os, MASTER_NODE_OBJ, |
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|
2267 ZFS_SA_ATTRS, 8, 1, &sa_obj, tx); |
13805
e3a9ae14a119
3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument is zero
Madhav Suresh <madhav.suresh@delphix.com>
parents:
13780
diff
changeset
|
2268 ASSERT0(error); |
11935
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|
2269 |
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|
2270 VERIFY(0 == sa_set_sa_object(os, sa_obj)); |
538c866aaac6
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|
2271 sa_register_update_callback(os, zfs_sa_upgrade); |
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diff
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|
2272 } |
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|
2273 |
13743
95aba6e49b9f
2882 implement libzfs_core
Matthew Ahrens <mahrens@delphix.com>
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13370
diff
changeset
|
2274 spa_history_log_internal_ds(dmu_objset_ds(os), "upgrade", tx, |
95aba6e49b9f
2882 implement libzfs_core
Matthew Ahrens <mahrens@delphix.com>
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13370
diff
changeset
|
2275 "from %llu to %llu", zfsvfs->z_version, newvers); |
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2276 |
4577 | 2277 dmu_tx_commit(tx); |
2278 | |
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|
2279 zfsvfs->z_version = newvers; |
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|
2280 |
13178
5f70b43d6386
6977619 NULL pointer deference in sa_handle_get_from_db()
Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
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13081
diff
changeset
|
2281 zfs_set_fuid_feature(zfsvfs); |
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2282 |
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2283 return (0); |
4577 | 2284 } |
2285 | |
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|
2286 /* |
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|
2287 * Read a property stored within the master node. |
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|
2288 */ |
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|
2289 int |
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5489
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|
2290 zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value) |
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|
2291 { |
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|
2292 const char *pname; |
7184
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|
2293 int error = ENOENT; |
5498
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|
2294 |
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changeset
|
2295 /* |
334b476844ca
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|
2296 * Look up the file system's value for the property. For the |
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5489
diff
changeset
|
2297 * version property, we look up a slightly different string. |
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|
2298 */ |
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|
2299 if (prop == ZFS_PROP_VERSION) |
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|
2300 pname = ZPL_VERSION_STR; |
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diff
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|
2301 else |
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|
2302 pname = zfs_prop_to_name(prop); |
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|
2303 |
7184
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7147
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|
2304 if (os != NULL) |
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|
2305 error = zap_lookup(os, MASTER_NODE_OBJ, pname, 8, 1, value); |
5498
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2306 |
6404 | 2307 if (error == ENOENT) { |
5498
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|
2308 /* No value set, use the default value */ |
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5489
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|
2309 switch (prop) { |
6404 | 2310 case ZFS_PROP_VERSION: |
2311 *value = ZPL_VERSION; | |
2312 break; | |
5498
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5489
diff
changeset
|
2313 case ZFS_PROP_NORMALIZE: |
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6622831 normalization properties are not preserved by "zfs send"
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parents:
5489
diff
changeset
|
2314 case ZFS_PROP_UTF8ONLY: |
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5489
diff
changeset
|
2315 *value = 0; |
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5489
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|
2316 break; |
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5489
diff
changeset
|
2317 case ZFS_PROP_CASE: |
334b476844ca
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5489
diff
changeset
|
2318 *value = ZFS_CASE_SENSITIVE; |
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5489
diff
changeset
|
2319 break; |
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5489
diff
changeset
|
2320 default: |
6404 | 2321 return (error); |
5498
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5489
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|
2322 } |
6404 | 2323 error = 0; |
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2324 } |
6404 | 2325 return (error); |
5498
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|
2326 } |
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|
2327 |
789 | 2328 static vfsdef_t vfw = { |
2329 VFSDEF_VERSION, | |
2330 MNTTYPE_ZFS, | |
2331 zfs_vfsinit, | |
5331 | 2332 VSW_HASPROTO|VSW_CANRWRO|VSW_CANREMOUNT|VSW_VOLATILEDEV|VSW_STATS| |
12633
9f2cda0ed938
PSARC 2010/144 lofi(7D) in non global zones
John Levon <john.levon@sun.com>
parents:
12530
diff
changeset
|
2333 VSW_XID|VSW_ZMOUNT, |
789 | 2334 &zfs_mntopts |
2335 }; | |
2336 | |
2337 struct modlfs zfs_modlfs = { | |
4577 | 2338 &mod_fsops, "ZFS filesystem version " SPA_VERSION_STRING, &vfw |
789 | 2339 }; |