Mercurial > illumos > illumos-gate
annotate usr/src/uts/common/fs/zfs/sys/zvol.h @ 13967:92bec6d87f59
3557 dumpvp_size is not updated correctly when a dump zvol's size is changed
3558 setting the volsize on a dump device does not return back ENOSPC
3559 setting a volsize larger than the space available sometimes succeeds
3560 dumpadm should be able to remove a dump device
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Albert Lee <trisk@nexenta.com>
| author | George Wilson <george.wilson@delphix.com> |
|---|---|
| date | Wed, 20 Feb 2013 22:50:16 -0800 |
| parents | 0ed71edeac88 |
| children |
| rev | line source |
|---|---|
| 2676 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 4 * The contents of this file are subject to the terms of the | |
| 5 * Common Development and Distribution License (the "License"). | |
| 6 * You may not use this file except in compliance with the License. | |
| 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 | |
| 22 /* | |
|
12314
0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
23 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
| 2676 | 24 */ |
| 25 | |
| 26 #ifndef _SYS_ZVOL_H | |
| 27 #define _SYS_ZVOL_H | |
| 28 | |
| 29 #include <sys/zfs_context.h> | |
| 30 | |
| 31 #ifdef __cplusplus | |
| 32 extern "C" { | |
| 33 #endif | |
| 34 | |
| 6423 | 35 #define ZVOL_OBJ 1ULL |
| 36 #define ZVOL_ZAP_OBJ 2ULL | |
| 37 | |
| 2676 | 38 #ifdef _KERNEL |
| 39 extern int zvol_check_volsize(uint64_t volsize, uint64_t blocksize); | |
| 40 extern int zvol_check_volblocksize(uint64_t volblocksize); | |
| 2885 | 41 extern int zvol_get_stats(objset_t *os, nvlist_t *nv); |
| 4543 | 42 extern void zvol_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx); |
|
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
6423
diff
changeset
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43 extern int zvol_create_minor(const char *); |
| 2676 | 44 extern int zvol_remove_minor(const char *); |
|
10588
dc03f981ea18
6438937 if 'zfs destroy' fails, it can leave a zvol device link missing
Eric Taylor <Eric.Taylor@Sun.COM>
parents:
6423
diff
changeset
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45 extern void zvol_remove_minors(const char *); |
|
13967
92bec6d87f59
3557 dumpvp_size is not updated correctly when a dump zvol's size is changed
George Wilson <george.wilson@delphix.com>
parents:
12314
diff
changeset
|
46 extern int zvol_set_volsize(const char *, uint64_t); |
| 2676 | 47 |
| 48 extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr); | |
| 6423 | 49 extern int zvol_dump(dev_t dev, caddr_t addr, daddr_t offset, int nblocks); |
| 2676 | 50 extern int zvol_close(dev_t dev, int flag, int otyp, cred_t *cr); |
| 51 extern int zvol_strategy(buf_t *bp); | |
| 52 extern int zvol_read(dev_t dev, uio_t *uiop, cred_t *cr); | |
| 53 extern int zvol_write(dev_t dev, uio_t *uiop, cred_t *cr); | |
| 54 extern int zvol_aread(dev_t dev, struct aio_req *aio, cred_t *cr); | |
| 55 extern int zvol_awrite(dev_t dev, struct aio_req *aio, cred_t *cr); | |
| 56 extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, | |
| 57 int *rvalp); | |
| 58 extern int zvol_busy(void); | |
| 59 extern void zvol_init(void); | |
| 60 extern void zvol_fini(void); | |
|
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
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61 |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
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62 extern int zvol_get_volume_params(minor_t minor, uint64_t *blksize, |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
63 uint64_t *max_xfer_len, void **minor_hdl, void **objset_hdl, void **zil_hdl, |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
64 void **rl_hdl, void **bonus_hdl); |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
65 extern uint64_t zvol_get_volume_size(void *minor_hdl); |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
66 extern int zvol_get_volume_wce(void *minor_hdl); |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
67 extern void zvol_log_write_minor(void *minor_hdl, dmu_tx_t *tx, offset_t off, |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
68 ssize_t resid, boolean_t sync); |
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0ed71edeac88
6909809 COMSTAR should avoid extra data copy to zvol-based backing store
James Moore <James.Moore@Sun.COM>
parents:
10588
diff
changeset
|
69 |
| 2676 | 70 #endif |
| 71 | |
| 72 #ifdef __cplusplus | |
| 73 } | |
| 74 #endif | |
| 75 | |
| 76 #endif /* _SYS_ZVOL_H */ |