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freebsd-nq/include/zfs_comutil.h

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Initial Linux ZFS GIT Repo
2008-11-20 20:01:55 +00:00
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
Update core ZFS code from build 121 to build 141.
2010-05-28 20:45:14 +00:00
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
OpenZFS 9235 - rename zpool_rewind_policy_t to zpool_load_policy_t We want to be able to pass various settings during import/open of a pool, which are not only related to rewind. Instead of adding a new policy and duplicate a bunch of code, we should just rename rewind_policy to a more generic term like load_policy. For instance, we'd like to set spa->spa_import_flags from the nvlist, rather from a flags parameter passed to spa_import as in some cases we want those flags not only for the import case, but also for the open case. One such flag could be ZFS_IMPORT_MISSING_LOG (as used in zdb) which would allow zfs to open a pool when logs are missing. Authored by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: Matt Ahrens <matt@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://illumos.org/issues/9235 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d2b1e44 Closes #7532
2017-02-10 22:51:09 +00:00
* Copyright (c) 2012, 2017 by Delphix. All rights reserved.
Initial Linux ZFS GIT Repo
2008-11-20 20:01:55 +00:00
*/
#ifndef _ZFS_COMUTIL_H
#define _ZFS_COMUTIL_H
#include <sys/fs/zfs.h>
#include <sys/types.h>
#ifdef __cplusplus
extern "C" {
#endif
Update core ZFS code from build 121 to build 141.
2010-05-28 20:45:14 +00:00
extern boolean_t zfs_allocatable_devs(nvlist_t *);
OpenZFS 9235 - rename zpool_rewind_policy_t to zpool_load_policy_t We want to be able to pass various settings during import/open of a pool, which are not only related to rewind. Instead of adding a new policy and duplicate a bunch of code, we should just rename rewind_policy to a more generic term like load_policy. For instance, we'd like to set spa->spa_import_flags from the nvlist, rather from a flags parameter passed to spa_import as in some cases we want those flags not only for the import case, but also for the open case. One such flag could be ZFS_IMPORT_MISSING_LOG (as used in zdb) which would allow zfs to open a pool when logs are missing. Authored by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed by: Matt Ahrens <matt@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Approved by: Robert Mustacchi <rm@joyent.com> Ported-by: Brian Behlendorf <behlendorf1@llnl.gov> OpenZFS-issue: https://illumos.org/issues/9235 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/d2b1e44 Closes #7532
2017-02-10 22:51:09 +00:00
extern void zpool_get_load_policy(nvlist_t *, zpool_load_policy_t *);
Update core ZFS code from build 121 to build 141.
2010-05-28 20:45:14 +00:00
extern int zfs_zpl_version_map(int spa_version);
extern int zfs_spa_version_map(int zpl_version);
OpenZFS 9337 - zfs get all is slow due to uncached metadata This project's goal is to make read-heavy channel programs and zfs(1m) administrative commands faster by caching all the metadata that they will need in the dbuf layer. This will prevent the data from being evicted, so that any future call to i.e. zfs get all won't have to go to disk (very much). There are two parts: The dbuf_metadata_cache. We identify what to put into the cache based on the object type of each dbuf. Caching objset properties os {version,normalization,utf8only,casesensitivity} in the objset_t. The reason these needed to be cached is that although they are queried frequently, they aren't stored in a dbuf type which we can easily recognize and cache in the dbuf layer; instead, we have to explicitly store them. There's already existing infrastructure for maintaining cached properties in the objset setup code, so I simply used that. Performance Testing: - Disabled kmem_flags - Tuned dbuf_cache_max_bytes very low (128K) - Tuned zfs_arc_max very low (64M) Created test pool with 400 filesystems, and 100 snapshots per filesystem. Later on in testing, added 600 more filesystems (with no snapshots) to make sure scaling didn't look different between snapshots and filesystems. Results: | Test | Time (trunk / diff) | I/Os (trunk / diff) | +------------------------+---------------------+---------------------+ | zpool import | 0:05 / 0:06 | 12.9k / 12.9k | | zfs get all (uncached) | 1:36 / 0:53 | 16.7k / 5.7k | | zfs get all (cached) | 1:36 / 0:51 | 16.0k / 6.0k | Authored by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Prakash Surya <prakash.surya@delphix.com> Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Thomas Caputi <tcaputi@datto.com> Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Approved by: Richard Lowe <richlowe@richlowe.net> Ported-by: Alek Pinchuk <apinchuk@datto.com> Signed-off-by: Alek Pinchuk <apinchuk@datto.com> OpenZFS-issue: https://illumos.org/issues/9337 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/7dec52f Closes #7668
2018-07-10 17:49:50 +00:00
extern boolean_t zfs_dataset_name_hidden(const char *);
Illumos #2882, #2883, #2900 2882 implement libzfs_core 2883 changing "canmount" property to "on" should not always remount dataset 2900 "zfs snapshot" should be able to create multiple, arbitrary snapshots at once Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed by: Chris Siden <christopher.siden@delphix.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Reviewed by: Bill Pijewski <wdp@joyent.com> Reviewed by: Dan Kruchinin <dan.kruchinin@gmail.com> Approved by: Eric Schrock <Eric.Schrock@delphix.com> References: https://www.illumos.org/issues/2882 https://www.illumos.org/issues/2883 https://www.illumos.org/issues/2900 illumos/illumos-gate@4445fffbbb1ea25fd0e9ea68b9380dd7a6709025 Ported-by: Tim Chase <tim@chase2k.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1293 Porting notes: WARNING: This patch changes the user/kernel ABI. That means that the zfs/zpool utilities built from master are NOT compatible with the 0.6.2 kernel modules. Ensure you load the matching kernel modules from master after updating the utilities. Otherwise the zfs/zpool commands will be unable to interact with your pool and you will see errors similar to the following: $ zpool list failed to read pool configuration: bad address no pools available $ zfs list no datasets available Add zvol minor device creation to the new zfs_snapshot_nvl function. Remove the logging of the "release" operation in dsl_dataset_user_release_sync(). The logging caused a null dereference because ds->ds_dir is zeroed in dsl_dataset_destroy_sync() and the logging functions try to get the ds name via the dsl_dataset_name() function. I've got no idea why this particular code would have worked in Illumos. This code has subsequently been completely reworked in Illumos commit 3b2aab1 (3464 zfs synctask code needs restructuring). Squash some "may be used uninitialized" warning/erorrs. Fix some printf format warnings for %lld and %llu. Apply a few spa_writeable() changes that were made to Illumos in illumos/illumos-gate.git@cd1c8b8 as part of the 3112, 3113, 3114 and 3115 fixes. Add a missing call to fnvlist_free(nvl) in log_internal() that was added in Illumos to fix issue 3085 but couldn't be ported to ZoL at the time (zfsonlinux/zfs@9e11c73) because it depended on future work.
2013-08-28 11:45:09 +00:00
#define ZFS_NUM_LEGACY_HISTORY_EVENTS 41
extern const char *zfs_history_event_names[ZFS_NUM_LEGACY_HISTORY_EVENTS];
Initial Linux ZFS GIT Repo
2008-11-20 20:01:55 +00:00
#ifdef __cplusplus
}
#endif
#endif /* _ZFS_COMUTIL_H */
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