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* Add "zstd-fast" to help options for "compression" propertyJake Howard2021-03-031-1/+1
| | | | | | | This value does work as expected, and is documented in the manpage. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Jake Howard <[email protected]> Closes #11670
* FreeBSD: Do zcommon_init sooner to avoid FPU panicRyan Moeller2020-12-091-1/+1
| | | | | | | | | | | | | | | | | | | | | There has been a panic affecting some system configurations where the thread FPU context is disturbed during the fletcher 4 benchmarks, leading to a panic at boot. module_init() registers zcommon_init to run in the last subsystem (SI_SUB_LAST). Running it as soon as interrupts have been configured (SI_SUB_INT_CONFIG_HOOKS) makes sure we have finished the benchmarks before we start doing other things. While it's not clear *how* the FPU context was being disturbed, this does seem to avoid it. Add a module_init_early() macro to run zcommon_init() at this earlier point on FreeBSD. On Linux this is defined as module_init(). Authored by: Konstantin Belousov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #11302
* Update references to nonexistent man pages in codeRyan Moeller2020-10-301-2/+2
| | | | | | | | Refer to the correct section or alternative for FreeBSD and Linux. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #11132
* Cross-platform acltypeRyan Moeller2020-10-131-10/+9
| | | | | | | | | | | | | | | | | The acltype property is currently hidden on FreeBSD and does not reflect the NFSv4 style ZFS ACLs used on the platform. This makes it difficult to observe that a pool imported from FreeBSD on Linux has a different type of ACL that is being ignored, and vice versa. Add an nfsv4 acltype and expose the property on FreeBSD. Make the default acltype nfsv4 on FreeBSD. Setting acltype to an unhanded style is treated the same as setting it to off. The ACLs will not be removed, but they will be ignored. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #10520
* Rename acltype=posixacl to acltype=posixRyan Moeller2020-09-161-5/+6
| | | | | | | Prefer acltype=off|posix, retaining the old names as aliases. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #10918
* Make formatting of dedup values string consistentClint Armstrong2020-08-221-2/+2
| | | | | | | | | | | All other prop values return options separated by ` | `, dedup values do not, they are separated by `, `. This change makes the dedup value formatting consistent with other properties. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Ryan Moeller <[email protected]> Signed-off-by: Clint Armstrong <[email protected]> Closes #10761
* Add zstd support to zfsMichael Niewöhner2020-08-201-2/+87
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This PR adds two new compression types, based on ZStandard: - zstd: A basic ZStandard compression algorithm Available compression. Levels for zstd are zstd-1 through zstd-19, where the compression increases with every level, but speed decreases. - zstd-fast: A faster version of the ZStandard compression algorithm zstd-fast is basically a "negative" level of zstd. The compression decreases with every level, but speed increases. Available compression levels for zstd-fast: - zstd-fast-1 through zstd-fast-10 - zstd-fast-20 through zstd-fast-100 (in increments of 10) - zstd-fast-500 and zstd-fast-1000 For more information check the man page. Implementation details: Rather than treat each level of zstd as a different algorithm (as was done historically with gzip), the block pointer `enum zio_compress` value is simply zstd for all levels, including zstd-fast, since they all use the same decompression function. The compress= property (a 64bit unsigned integer) uses the lower 7 bits to store the compression algorithm (matching the number of bits used in a block pointer, as the 8th bit was borrowed for embedded block pointers). The upper bits are used to store the compression level. It is necessary to be able to determine what compression level was used when later reading a block back, so the concept used in LZ4, where the first 32bits of the on-disk value are the size of the compressed data (since the allocation is rounded up to the nearest ashift), was extended, and we store the version of ZSTD and the level as well as the compressed size. This value is returned when decompressing a block, so that if the block needs to be recompressed (L2ARC, nop-write, etc), that the same parameters will be used to result in the matching checksum. All of the internal ZFS code ( `arc_buf_hdr_t`, `objset_t`, `zio_prop_t`, etc.) uses the separated _compress and _complevel variables. Only the properties ZAP contains the combined/bit-shifted value. The combined value is split when the compression_changed_cb() callback is called, and sets both objset members (os_compress and os_complevel). The userspace tools all use the combined/bit-shifted value. Additional notes: zdb can now also decode the ZSTD compression header (flag -Z) and inspect the size, version and compression level saved in that header. For each record, if it is ZSTD compressed, the parameters of the decoded compression header get printed. ZSTD is included with all current tests and new tests are added as-needed. Per-dataset feature flags now get activated when the property is set. If a compression algorithm requires a feature flag, zfs activates the feature when the property is set, rather than waiting for the first block to be born. This is currently only used by zstd but can be extended as needed. Portions-Sponsored-By: The FreeBSD Foundation Co-authored-by: Allan Jude <[email protected]> Co-authored-by: Brian Behlendorf <[email protected]> Co-authored-by: Sebastian Gottschall <[email protected]> Co-authored-by: Kjeld Schouten-Lebbing <[email protected]> Co-authored-by: Michael Niewöhner <[email protected]> Signed-off-by: Allan Jude <[email protected]> Signed-off-by: Allan Jude <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Sebastian Gottschall <[email protected]> Signed-off-by: Kjeld Schouten-Lebbing <[email protected]> Signed-off-by: Michael Niewöhner <[email protected]> Closes #6247 Closes #9024 Closes #10277 Closes #10278
* Add include files for prototypesArvind Sankar2020-06-181-0/+1
| | | | | | | | | | Include the header with prototypes in the file that provides definitions as well, to catch any mismatch between prototype and definition. Reviewed-by: Ryan Moeller <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Arvind Sankar <[email protected]> Closes #10470
* OpenZFS 3254 - add support in zfs for aclmode=restrictedPaul B. Henson2020-04-301-7/+2
| | | | | | | | | | | | | Authored-by: Paul B. Henson <[email protected]> Reviewed by: Albert Lee <[email protected]> Reviewed by: Gordon Ross <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Approved by: Richard Lowe <[email protected]> Ported-by: Paul B. Henson <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/3254 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/71dbfc287c Closes #10266
* OpenZFS 742 - Resurrect the ZFS "aclmode" property OpenZFS 664 - Umask ↵Paul B. Henson2020-04-301-8/+7
| | | | | | | | | | | | | | | | | | | | | | | masking "deny" ACL entries OpenZFS 279 - Bug in the new ACL (post-PSARC/2010/029) semantics Porting notes: * Updated zfs_acl_chmod to take 'boolean_t isdir' as first parameter rather than 'zfsvfs_t *zfsvfs' * zfs man pages changes mixed between zfs and new zfsprops man pages Reviewed by: Aram Hvrneanu <[email protected]> Reviewed by: Gordon Ross <[email protected]> Reviewed by: Robert Gordon <[email protected]> Reviewed by: [email protected] Reviewed by: Brian Behlendorf <[email protected]> Approved by: Garrett D'Amore <[email protected]> Ported-by: Paul B. Henson <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/742 OpenZFS-issue: https://www.illumos.org/issues/664 OpenZFS-issue: https://www.illumos.org/issues/279 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/a3c49ce110 Closes #10266
* Change default to overlay=onRyan Moeller2020-03-061-1/+1
| | | | | | | | | | | | | | Filesystems allow overlay mounts by default on FreeBSD and Linux. Respect the native convention by switching the default to overlay=on, while retaining the option to turn the property off for compatibility with other operating systems' conventions. Update documentation and tests accordingly. Reviewed-by: Richard Laager <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #10030
* Restore aclmode and remove acltype on FreeBSDRyan Moeller2020-02-041-3/+26
| | | | | | | | | | | | | | This replaces the placeholder ZFS_PROP_PRIVATE with ZFS_PROP_ACLMODE, matching what is done in the NFSv4 ACLs PR (#9709). On FreeBSD we hide ZFS_PROP_ACLTYPE, while on Linux we hide ZFS_PROP_ACLMODE. The tests already assume this arrangement. Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Alexander Motin <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #9913
* Add FreeBSD jail support hooksMatthew Macy2019-12-111-0/+5
| | | | | | | | | | | | Add the 'zfs jail/unjail' subcommands along with the relevant documentation from FreeBSD. This feature is not supported on Linux and still requires the match kernel ioctls which will be included when the FreeBSD platform code is integrated. Reviewed-by: Jorgen Lundman <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matt Macy <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #9686
* Disable EDONR on FreeBSDMatthew Macy2019-12-051-3/+19
| | | | | | | | | | | FreeBSD uses its own crypto framework in-kernel which, at this time, has no EDONR implementation. Reviewed-by: Jorgen Lundman <[email protected]> Reviewed-by: Allan Jude <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matt Macy <[email protected]> Signed-off-by: Ryan Moeller <[email protected]> Closes #9664
* Increase allowed 'special_small_blocks' maximum valueBrian Behlendorf2019-12-031-1/+1
| | | | | | | | | | | | | | There may be circumstances where it's desirable that all blocks in a specified dataset be stored on the special device. Relax the artificial 128K limit and allow the special_small_blocks property to be set up to 1M. When blocks >1MB have been enabled via the zfs_max_recordsize module option, this limit is increased accordingly. Reviewed-by: Don Brady <[email protected]> Reviewed-by: Kjeld Schouten <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #9131 Closes #9355
* Wrap Linux module macrosMatthew Macy2019-11-011-6/+6
| | | | | | | | | | MODULE_VERSION is already defined on FreeBSD. Wrap all of the used MODULE_* macros for the sake of consistency and portability. Add a user space noop version to reduce the need for _KERNEL ifdefs. Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matt Macy <[email protected]> Closes #9542
* Linux 4.14, 4.19, 5.0+ compat: SIMD save/restoreBrian Behlendorf2019-10-241-0/+14
| | | | | | | | | | | | | | | | | | | | Contrary to initial testing we cannot rely on these kernels to invalidate the per-cpu FPU state and restore the FPU registers. Nor can we guarantee that the kernel won't modify the FPU state which we saved in the task struck. Therefore, the kfpu_begin() and kfpu_end() functions have been updated to save and restore the FPU state using our own dedicated per-cpu FPU state variables. This has the additional advantage of allowing us to use the FPU again in user threads. So we remove the code which was added to use task queues to ensure some functions ran in kernel threads. Reviewed-by: Fabian Grünbichler <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #9346 Closes #9403
* Remove code for zfs remapMatthew Ahrens2019-06-241-3/+5
| | | | | | | | | | | | | | | | The "zfs remap" command was disabled by 6e91a72fe3ff8bb282490773bd687632f3e8c79d, because it has little utility and introduced some tricky bugs. This commit removes the code for it, the associated ZFS_IOC_REMAP ioctl, and tests. Note that the ioctl and property will remain, but have no functionality. This allows older software to fail gracefully if it attempts to use these, and avoids a backwards incompatibility that would be introduced if we renumbered the later ioctls/props. Reviewed-by: Tom Caputi <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Matthew Ahrens <[email protected]> Closes #8944
* Implement Redacted Send/ReceivePaul Dagnelie2019-06-191-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Redacted send/receive allows users to send subsets of their data to a target system. One possible use case for this feature is to not transmit sensitive information to a data warehousing, test/dev, or analytics environment. Another is to save space by not replicating unimportant data within a given dataset, for example in backup tools like zrepl. Redacted send/receive is a three-stage process. First, a clone (or clones) is made of the snapshot to be sent to the target. In this clone (or clones), all unnecessary or unwanted data is removed or modified. This clone is then snapshotted to create the "redaction snapshot" (or snapshots). Second, the new zfs redact command is used to create a redaction bookmark. The redaction bookmark stores the list of blocks in a snapshot that were modified by the redaction snapshot(s). Finally, the redaction bookmark is passed as a parameter to zfs send. When sending to the snapshot that was redacted, the redaction bookmark is used to filter out blocks that contain sensitive or unwanted information, and those blocks are not included in the send stream. When sending from the redaction bookmark, the blocks it contains are considered as candidate blocks in addition to those blocks in the destination snapshot that were modified since the creation_txg of the redaction bookmark. This step is necessary to allow the target to rehydrate data in the case where some blocks are accidentally or unnecessarily modified in the redaction snapshot. The changes to bookmarks to enable fast space estimation involve adding deadlists to bookmarks. There is also logic to manage the life cycles of these deadlists. The new size estimation process operates in cases where previously an accurate estimate could not be provided. In those cases, a send is performed where no data blocks are read, reducing the runtime significantly and providing a byte-accurate size estimate. Reviewed-by: Dan Kimmel <[email protected]> Reviewed-by: Matt Ahrens <[email protected]> Reviewed-by: Prashanth Sreenivasa <[email protected]> Reviewed-by: John Kennedy <[email protected]> Reviewed-by: George Wilson <[email protected]> Reviewed-by: Chris Williamson <[email protected]> Reviewed-by: Pavel Zhakarov <[email protected]> Reviewed-by: Sebastien Roy <[email protected]> Reviewed-by: Prakash Surya <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Paul Dagnelie <[email protected]> Closes #7958
* Detect and prevent mixed raw and non-raw sendsTom Caputi2019-03-131-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, there is an issue in the raw receive code where raw receives are allowed to happen on top of previously non-raw received datasets. This is a problem because the source-side dataset doesn't know about how the blocks on the destination were encrypted. As a result, any MAC in the objset's checksum-of-MACs tree that is a parent of both blocks encrypted on the source and blocks encrypted by the destination will be incorrect. This will result in authentication errors when we decrypt the dataset. This patch fixes this issue by adding a new check to the raw receive code. The code now maintains an "IVset guid", which acts as an identifier for the set of IVs used to encrypt a given snapshot. When a snapshot is raw received, the destination snapshot will take this value from the DRR_BEGIN payload. Non-raw receives and normal "zfs snap" operations will cause ZFS to generate a new IVset guid. When a raw incremental stream is received, ZFS will check that the "from" IVset guid in the stream matches that of the "from" destination snapshot. If they do not match, the code will error out the receive, preventing the problem. This patch requires an on-disk format change to add the IVset guids to snapshots and bookmarks. As a result, this patch has errata handling and a tunable to help affected users resolve the issue with as little interruption as possible. Reviewed-by: Paul Dagnelie <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Matt Ahrens <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #8308
* Pool allocation classesDon Brady2018-09-051-0/+3
| | | | | | | | | | | | | | | | | | | | Allocation Classes add the ability to have allocation classes in a pool that are dedicated to serving specific block categories, such as DDT data, metadata, and small file blocks. A pool can opt-in to this feature by adding a 'special' or 'dedup' top-level VDEV. Reviewed by: Pavel Zakharov <[email protected]> Reviewed-by: Richard Laager <[email protected]> Reviewed-by: Alek Pinchuk <[email protected]> Reviewed-by: Håkan Johansson <[email protected]> Reviewed-by: Andreas Dilger <[email protected]> Reviewed-by: DHE <[email protected]> Reviewed-by: Richard Elling <[email protected]> Reviewed-by: Gregor Kopka <[email protected]> Reviewed-by: Kash Pande <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Matthew Ahrens <[email protected]> Signed-off-by: Don Brady <[email protected]> Closes #5182
* Add zfs module feature and property info to sysfsDon Brady2018-09-021-1/+2
| | | | | | | | | | | | | | | | | | | | | This extends our sysfs '/sys/module/zfs' entry to include feature and property attributes. The primary consumer of this information is user processes, like the zfs CLI, that need to know what the current loaded ZFS module supports. The libzfs binary will consult this information when instantiating the zfs and zpool property tables and the pool features table. This introduces 4 kernel objects (dirs) into '/sys/module/zfs' with corresponding attributes (files): features.runtime features.pool properties.dataset properties.pool Reviewed-by: Matthew Ahrens <[email protected]> Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Don Brady <[email protected]> Closes #7706
* Introduce read/write kstats per datasetSerapheim Dimitropoulos2018-08-201-2/+2
| | | | | | | | | | | | | The following patch introduces a few statistics on reads and writes grouped by dataset. These statistics are implemented as kstats (backed by aggregate sums for performance) and can be retrieved by using the dataset objset ID number. The motivation for this change is to provide some preliminary analytics on dataset usage/performance. Reviewed-by: Richard Elling <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Signed-off-by: Serapheim Dimitropoulos <[email protected]> Closes #7705
* Update build system and packagingBrian Behlendorf2018-05-291-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minimal changes required to integrate the SPL sources in to the ZFS repository build infrastructure and packaging. Build system and packaging: * Renamed SPL_* autoconf m4 macros to ZFS_*. * Removed redundant SPL_* autoconf m4 macros. * Updated the RPM spec files to remove SPL package dependency. * The zfs package obsoletes the spl package, and the zfs-kmod package obsoletes the spl-kmod package. * The zfs-kmod-devel* packages were updated to add compatibility symlinks under /usr/src/spl-x.y.z until all dependent packages can be updated. They will be removed in a future release. * Updated copy-builtin script for in-kernel builds. * Updated DKMS package to include the spl.ko. * Updated stale AUTHORS file to include all contributors. * Updated stale COPYRIGHT and included the SPL as an exception. * Renamed README.markdown to README.md * Renamed OPENSOLARIS.LICENSE to LICENSE. * Renamed DISCLAIMER to NOTICE. Required code changes: * Removed redundant HAVE_SPL macro. * Removed _BOOT from nvpairs since it doesn't apply for Linux. * Initial header cleanup (removal of empty headers, refactoring). * Remove SPL repository clone/build from zimport.sh. * Use of DEFINE_RATELIMIT_STATE and DEFINE_SPINLOCK removed due to build issues when forcing C99 compilation. * Replaced legacy ACCESS_ONCE with READ_ONCE. * Include needed headers for `current` and `EXPORT_SYMBOL`. Reviewed-by: Tony Hutter <[email protected]> Reviewed-by: Olaf Faaland <[email protected]> Reviewed-by: Matthew Ahrens <[email protected]> Reviewed-by: Pavel Zakharov <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> TEST_ZIMPORT_SKIP="yes" Closes #7556
* OpenZFS 7614, 9064 - zfs device evacuation/removalMatthew Ahrens2018-04-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OpenZFS 7614 - zfs device evacuation/removal OpenZFS 9064 - remove_mirror should wait for device removal to complete This project allows top-level vdevs to be removed from the storage pool with "zpool remove", reducing the total amount of storage in the pool. This operation copies all allocated regions of the device to be removed onto other devices, recording the mapping from old to new location. After the removal is complete, read and free operations to the removed (now "indirect") vdev must be remapped and performed at the new location on disk. The indirect mapping table is kept in memory whenever the pool is loaded, so there is minimal performance overhead when doing operations on the indirect vdev. The size of the in-memory mapping table will be reduced when its entries become "obsolete" because they are no longer used by any block pointers in the pool. An entry becomes obsolete when all the blocks that use it are freed. An entry can also become obsolete when all the snapshots that reference it are deleted, and the block pointers that reference it have been "remapped" in all filesystems/zvols (and clones). Whenever an indirect block is written, all the block pointers in it will be "remapped" to their new (concrete) locations if possible. This process can be accelerated by using the "zfs remap" command to proactively rewrite all indirect blocks that reference indirect (removed) vdevs. Note that when a device is removed, we do not verify the checksum of the data that is copied. This makes the process much faster, but if it were used on redundant vdevs (i.e. mirror or raidz vdevs), it would be possible to copy the wrong data, when we have the correct data on e.g. the other side of the mirror. At the moment, only mirrors and simple top-level vdevs can be removed and no removal is allowed if any of the top-level vdevs are raidz. Porting Notes: * Avoid zero-sized kmem_alloc() in vdev_compact_children(). The device evacuation code adds a dependency that vdev_compact_children() be able to properly empty the vdev_child array by setting it to NULL and zeroing vdev_children. Under Linux, kmem_alloc() and related functions return a sentinel pointer rather than NULL for zero-sized allocations. * Remove comment regarding "mpt" driver where zfs_remove_max_segment is initialized to SPA_MAXBLOCKSIZE. Change zfs_condense_indirect_commit_entry_delay_ticks to zfs_condense_indirect_commit_entry_delay_ms for consistency with most other tunables in which delays are specified in ms. * ZTS changes: Use set_tunable rather than mdb Use zpool sync as appropriate Use sync_pool instead of sync Kill jobs during test_removal_with_operation to allow unmount/export Don't add non-disk names such as "mirror" or "raidz" to $DISKS Use $TEST_BASE_DIR instead of /tmp Increase HZ from 100 to 1000 which is more common on Linux removal_multiple_indirection.ksh Reduce iterations in order to not time out on the code coverage builders. removal_resume_export: Functionally, the test case is correct but there exists a race where the kernel thread hasn't been fully started yet and is not visible. Wait for up to 1 second for the removal thread to be started before giving up on it. Also, increase the amount of data copied in order that the removal not finish before the export has a chance to fail. * MMP compatibility, the concept of concrete versus non-concrete devices has slightly changed the semantics of vdev_writeable(). Update mmp_random_leaf_impl() accordingly. * Updated dbuf_remap() to handle the org.zfsonlinux:large_dnode pool feature which is not supported by OpenZFS. * Added support for new vdev removal tracepoints. * Test cases removal_with_zdb and removal_condense_export have been intentionally disabled. When run manually they pass as intended, but when running in the automated test environment they produce unreliable results on the latest Fedora release. They may work better once the upstream pool import refectoring is merged into ZoL at which point they will be re-enabled. Authored by: Matthew Ahrens <[email protected]> Reviewed-by: Alex Reece <[email protected]> Reviewed-by: George Wilson <[email protected]> Reviewed-by: John Kennedy <[email protected]> Reviewed-by: Prakash Surya <[email protected]> Reviewed by: Richard Laager <[email protected]> Reviewed by: Tim Chase <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Approved by: Garrett D'Amore <[email protected]> Ported-by: Tim Chase <[email protected]> Signed-off-by: Tim Chase <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7614 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/f539f1eb Closes #6900
* Project Quota on ZFSNasf-Fan2018-02-131-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Project quota is a new ZFS system space/object usage accounting and enforcement mechanism. Similar as user/group quota, project quota is another dimension of system quota. It bases on the new object attribute - project ID. Project ID is a numerical value to indicate to which project an object belongs. An object only can belong to one project though you (the object owner or privileged user) can change the object project ID via 'chattr -p' or 'zfs project [-s] -p' explicitly. The object also can inherit the project ID from its parent when created if the parent has the project inherit flag (that can be set via 'chattr +P' or 'zfs project -s [-p]'). By accounting the spaces/objects belong to the same project, we can know how many spaces/objects used by the project. And if we set the upper limit then we can control the spaces/objects that are consumed by such project. It is useful when multiple groups and users cooperate for the same project, or a user/group needs to participate in multiple projects. Support the following commands and functionalities: zfs set projectquota@project zfs set projectobjquota@project zfs get projectquota@project zfs get projectobjquota@project zfs get projectused@project zfs get projectobjused@project zfs projectspace zfs allow projectquota zfs allow projectobjquota zfs allow projectused zfs allow projectobjused zfs unallow projectquota zfs unallow projectobjquota zfs unallow projectused zfs unallow projectobjused chattr +/-P chattr -p project_id lsattr -p This patch also supports tree quota based on the project quota via "zfs project" commands set as following: zfs project [-d|-r] <file|directory ...> zfs project -C [-k] [-r] <file|directory ...> zfs project -c [-0] [-d|-r] [-p id] <file|directory ...> zfs project [-p id] [-r] [-s] <file|directory ...> For "df [-i] $DIR" command, if we set INHERIT (project ID) flag on the $DIR, then the proejct [obj]quota and [obj]used values for the $DIR's project ID will be shown as the total/free (avail) resource. Keep the same behavior as EXT4/XFS does. Reviewed-by: Andreas Dilger <[email protected]> Reviewed-by Ned Bass <[email protected]> Reviewed-by: Matthew Ahrens <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Signed-off-by: Fan Yong <[email protected]> TEST_ZIMPORT_POOLS="zol-0.6.1 zol-0.6.2 master" Change-Id: Ib4f0544602e03fb61fd46a849d7ba51a6005693c Closes #6290
* OpenZFS 7431 - ZFS Channel ProgramsChris Williamson2018-02-081-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | Authored by: Chris Williamson <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: John Kennedy <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Approved by: Garrett D'Amore <[email protected]> Ported-by: Don Brady <[email protected]> Ported-by: John Kennedy <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7431 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/dfc11533 Porting Notes: * The CLI long option arguments for '-t' and '-m' don't parse on linux * Switched from kmem_alloc to vmem_alloc in zcp_lua_alloc * Lua implementation is built as its own module (zlua.ko) * Lua headers consumed directly by zfs code moved to 'include/sys/lua/' * There is no native setjmp/longjump available in stock Linux kernel. Brought over implementations from illumos and FreeBSD * The get_temporary_prop() was adapted due to VFS platform differences * Use of inline functions in lua parser to reduce stack usage per C call * Skip some ZFS Test Suite ZCP tests on sparc64 to avoid stack overflow
* Native Encryption for ZFS on LinuxTom Caputi2017-08-141-3/+96
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This change incorporates three major pieces: The first change is a keystore that manages wrapping and encryption keys for encrypted datasets. These commands mostly involve manipulating the new DSL Crypto Key ZAP Objects that live in the MOS. Each encrypted dataset has its own DSL Crypto Key that is protected with a user's key. This level of indirection allows users to change their keys without re-encrypting their entire datasets. The change implements the new subcommands "zfs load-key", "zfs unload-key" and "zfs change-key" which allow the user to manage their encryption keys and settings. In addition, several new flags and properties have been added to allow dataset creation and to make mounting and unmounting more convenient. The second piece of this patch provides the ability to encrypt, decyrpt, and authenticate protected datasets. Each object set maintains a Merkel tree of Message Authentication Codes that protect the lower layers, similarly to how checksums are maintained. This part impacts the zio layer, which handles the actual encryption and generation of MACs, as well as the ARC and DMU, which need to be able to handle encrypted buffers and protected data. The last addition is the ability to do raw, encrypted sends and receives. The idea here is to send raw encrypted and compressed data and receive it exactly as is on a backup system. This means that the dataset on the receiving system is protected using the same user key that is in use on the sending side. By doing so, datasets can be efficiently backed up to an untrusted system without fear of data being compromised. Reviewed by: Matthew Ahrens <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: Jorgen Lundman <[email protected]> Signed-off-by: Tom Caputi <[email protected]> Closes #494 Closes #5769
* Add port of FreeBSD 'volmode' propertyLOLi2017-07-121-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | The volmode property may be set to control the visibility of ZVOL block devices. This allow switching ZVOL between three modes: full - existing fully functional behaviour (default) dev - hide partitions on ZVOL block devices none - not exposing volumes outside ZFS Additionally the new zvol_volmode module parameter can be used to control the default behaviour. This functionality can be used, for instance, on "backup" pools to avoid cluttering /dev with unneeded zd* devices. Original-patch-by: mav <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: loli10K <[email protected]> Signed-off-by: loli10K <[email protected]> FreeBSD-commit: https://github.com/freebsd/freebsd/commit/dd28e6bb Closes #1796 Closes #3438 Closes #6233
* Make createtxg and guid properties publicChristian Schwarz2017-05-091-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Document the existence of `createtxg` and `guid` native properties in man pages and zfs command output. One of the great features of ZFS is incremental replication of snapshots, possibly between pools on different machines. Shell scripts are commonly used to auomate this procedure. They have to find the most recent common snapshot between both sides and then perform incremental send & recv. Currently, scripts rely on the sorting order of `zfs list`, which defaults to `createtxg`, and the assumption that snapshot names on either side do not change. By making `createtxg` and `guid` part of the public ZFS interface, scripts are enabled to use a) `createtxg` to determine the logical & temporal order of snapshots (the creation property is not an equivalent substitute since multiple snapshots may be created within one second) b) `guid` to uniquely identify a snapshot, independent of its current display name This has the potential of making scripts safer and correct. Reviewed-by: George Melikov <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Reviewed-by: DHE <[email protected]> Reviewed-by: Richard Laager <[email protected]> Signed-off-by: Christian Schwarz <[email protected]> Closes #6102
* OpenZFS 7304 - zfs filesystem/snapshot counts should be read-onlyGeorge Melikov2017-01-231-6/+7
| | | | | | | | | | | | Authored by: Jerry Jelinek <[email protected]> Reviewed by: Garrett D'Amore <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Approved by: Dan McDonald <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/7304 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/007a6c1 Closes #5624
* Fix spellingka72017-01-031-1/+1
| | | | | | | | | Reviewed-by: Brian Behlendorf <[email protected] Reviewed-by: Giuseppe Di Natale <[email protected]>> Reviewed-by: George Melikov <[email protected]> Reviewed-by: Haakan T Johansson <[email protected]> Closes #5547 Closes #5543
* Add support for user/group dnode accounting & quotaJinshan Xiong2016-10-071-1/+5
| | | | | | | | | | | | | | | | This patch tracks dnode usage for each user/group in the DMU_USER/GROUPUSED_OBJECT ZAPs. ZAP entries dedicated to dnode accounting have the key prefixed with "obj-" followed by the UID/GID in string format (as done for the block accounting). A new SPA feature has been added for dnode accounting as well as a new ZPL version. The SPA feature must be enabled in the pool before upgrading the zfs filesystem. During the zfs version upgrade, a "quotacheck" will be executed by marking all dnode as dirty. ZoL-bug-id: https://github.com/zfsonlinux/zfs/issues/3500 Signed-off-by: Jinshan Xiong <[email protected]> Signed-off-by: Johann Lombardi <[email protected]>
* OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-RTony Hutter2016-10-031-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reviewed by: George Wilson <[email protected]> Reviewed by: Prakash Surya <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Reviewed by: Richard Lowe <[email protected]> Approved by: Garrett D'Amore <[email protected]> Ported by: Tony Hutter <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/4185 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/45818ee Porting Notes: This code is ported on top of the Illumos Crypto Framework code: https://github.com/zfsonlinux/zfs/pull/4329/commits/b5e030c8dbb9cd393d313571dee4756fbba8c22d The list of porting changes includes: - Copied module/icp/include/sha2/sha2.h directly from illumos - Removed from module/icp/algs/sha2/sha2.c: #pragma inline(SHA256Init, SHA384Init, SHA512Init) - Added 'ctx' to lib/libzfs/libzfs_sendrecv.c:zio_checksum_SHA256() since it now takes in an extra parameter. - Added CTASSERT() to assert.h from for module/zfs/edonr_zfs.c - Added skein & edonr to libicp/Makefile.am - Added sha512.S. It was generated from sha512-x86_64.pl in Illumos. - Updated ztest.c with new fletcher_4_*() args; used NULL for new CTX argument. - In icp/algs/edonr/edonr_byteorder.h, Removed the #if defined(__linux) section to not #include the non-existant endian.h. - In skein_test.c, renane NULL to 0 in "no test vector" array entries to get around a compiler warning. - Fixup test files: - Rename <sys/varargs.h> -> <varargs.h>, <strings.h> -> <string.h>, - Remove <note.h> and define NOTE() as NOP. - Define u_longlong_t - Rename "#!/usr/bin/ksh" -> "#!/bin/ksh -p" - Rename NULL to 0 in "no test vector" array entries to get around a compiler warning. - Remove "for isa in $($ISAINFO); do" stuff - Add/update Makefiles - Add some userspace headers like stdio.h/stdlib.h in places of sys/types.h. - EXPORT_SYMBOL *_Init/*_Update/*_Final... routines in ICP modules. - Update scripts/zfs2zol-patch.sed - include <sys/sha2.h> in sha2_impl.h - Add sha2.h to include/sys/Makefile.am - Add skein and edonr dirs to icp Makefile - Add new checksums to zpool_get.cfg - Move checksum switch block from zfs_secpolicy_setprop() to zfs_check_settable() - Fix -Wuninitialized error in edonr_byteorder.h on PPC - Fix stack frame size errors on ARM32 - Don't unroll loops in Skein on 32-bit to save stack space - Add memory barriers in sha2.c on 32-bit to save stack space - Add filetest_001_pos.ksh checksum sanity test - Add option to write psudorandom data in file_write utility
* OpenZFS 2605, 6980, 6902Matthew Ahrens2016-06-281-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2605 want to resume interrupted zfs send Reviewed by: George Wilson <[email protected]> Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Xin Li <[email protected]> Reviewed by: Arne Jansen <[email protected]> Approved by: Dan McDonald <[email protected]> Ported-by: kernelOfTruth <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/2605 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/9c3fd12 6980 6902 causes zfs send to break due to 32-bit/64-bit struct mismatch Reviewed by: Paul Dagnelie <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Robert Mustacchi <[email protected]> Ported by: Brian Behlendorf <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/6980 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/ea4a67f Porting notes: - All rsend and snapshop tests enabled and updated for Linux. - Fix misuse of input argument in traverse_visitbp(). - Fix ISO C90 warnings and errors. - Fix gcc 'missing braces around initializer' in 'struct send_thread_arg to_arg =' warning. - Replace 4 argument fletcher_4_native() with 3 argument version, this change was made in OpenZFS 4185 which has not been ported. - Part of the sections for 'zfs receive' and 'zfs send' was rewritten and reordered to approximate upstream. - Fix mktree xattr creation, 'user.' prefix required. - Minor fixes to newly enabled test cases - Long holds for volumes allowed during receive for minor registration.
* Implement large_dnode pool featureNed Bass2016-06-241-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Justification ------------- This feature adds support for variable length dnodes. Our motivation is to eliminate the overhead associated with using spill blocks. Spill blocks are used to store system attribute data (i.e. file metadata) that does not fit in the dnode's bonus buffer. By allowing a larger bonus buffer area the use of a spill block can be avoided. Spill blocks potentially incur an additional read I/O for every dnode in a dnode block. As a worst case example, reading 32 dnodes from a 16k dnode block and all of the spill blocks could issue 33 separate reads. Now suppose those dnodes have size 1024 and therefore don't need spill blocks. Then the worst case number of blocks read is reduced to from 33 to two--one per dnode block. In practice spill blocks may tend to be co-located on disk with the dnode blocks so the reduction in I/O would not be this drastic. In a badly fragmented pool, however, the improvement could be significant. ZFS-on-Linux systems that make heavy use of extended attributes would benefit from this feature. In particular, ZFS-on-Linux supports the xattr=sa dataset property which allows file extended attribute data to be stored in the dnode bonus buffer as an alternative to the traditional directory-based format. Workloads such as SELinux and the Lustre distributed filesystem often store enough xattr data to force spill bocks when xattr=sa is in effect. Large dnodes may therefore provide a performance benefit to such systems. Other use cases that may benefit from this feature include files with large ACLs and symbolic links with long target names. Furthermore, this feature may be desirable on other platforms in case future applications or features are developed that could make use of a larger bonus buffer area. Implementation -------------- The size of a dnode may be a multiple of 512 bytes up to the size of a dnode block (currently 16384 bytes). A dn_extra_slots field was added to the current on-disk dnode_phys_t structure to describe the size of the physical dnode on disk. The 8 bits for this field were taken from the zero filled dn_pad2 field. The field represents how many "extra" dnode_phys_t slots a dnode consumes in its dnode block. This convention results in a value of 0 for 512 byte dnodes which preserves on-disk format compatibility with older software. Similarly, the in-memory dnode_t structure has a new dn_num_slots field to represent the total number of dnode_phys_t slots consumed on disk. Thus dn->dn_num_slots is 1 greater than the corresponding dnp->dn_extra_slots. This difference in convention was adopted because, unlike on-disk structures, backward compatibility is not a concern for in-memory objects, so we used a more natural way to represent size for a dnode_t. The default size for newly created dnodes is determined by the value of a new "dnodesize" dataset property. By default the property is set to "legacy" which is compatible with older software. Setting the property to "auto" will allow the filesystem to choose the most suitable dnode size. Currently this just sets the default dnode size to 1k, but future code improvements could dynamically choose a size based on observed workload patterns. Dnodes of varying sizes can coexist within the same dataset and even within the same dnode block. For example, to enable automatically-sized dnodes, run # zfs set dnodesize=auto tank/fish The user can also specify literal values for the dnodesize property. These are currently limited to powers of two from 1k to 16k. The power-of-2 limitation is only for simplicity of the user interface. Internally the implementation can handle any multiple of 512 up to 16k, and consumers of the DMU API can specify any legal dnode value. The size of a new dnode is determined at object allocation time and stored as a new field in the znode in-memory structure. New DMU interfaces are added to allow the consumer to specify the dnode size that a newly allocated object should use. Existing interfaces are unchanged to avoid having to update every call site and to preserve compatibility with external consumers such as Lustre. The new interfaces names are given below. The versions of these functions that don't take a dnodesize parameter now just call the _dnsize() versions with a dnodesize of 0, which means use the legacy dnode size. New DMU interfaces: dmu_object_alloc_dnsize() dmu_object_claim_dnsize() dmu_object_reclaim_dnsize() New ZAP interfaces: zap_create_dnsize() zap_create_norm_dnsize() zap_create_flags_dnsize() zap_create_claim_norm_dnsize() zap_create_link_dnsize() The constant DN_MAX_BONUSLEN is renamed to DN_OLD_MAX_BONUSLEN. The spa_maxdnodesize() function should be used to determine the maximum bonus length for a pool. These are a few noteworthy changes to key functions: * The prototype for dnode_hold_impl() now takes a "slots" parameter. When the DNODE_MUST_BE_FREE flag is set, this parameter is used to ensure the hole at the specified object offset is large enough to hold the dnode being created. The slots parameter is also used to ensure a dnode does not span multiple dnode blocks. In both of these cases, if a failure occurs, ENOSPC is returned. Keep in mind, these failure cases are only possible when using DNODE_MUST_BE_FREE. If the DNODE_MUST_BE_ALLOCATED flag is set, "slots" must be 0. dnode_hold_impl() will check if the requested dnode is already consumed as an extra dnode slot by an large dnode, in which case it returns ENOENT. * The function dmu_object_alloc() advances to the next dnode block if dnode_hold_impl() returns an error for a requested object. This is because the beginning of the next dnode block is the only location it can safely assume to either be a hole or a valid starting point for a dnode. * dnode_next_offset_level() and other functions that iterate through dnode blocks may no longer use a simple array indexing scheme. These now use the current dnode's dn_num_slots field to advance to the next dnode in the block. This is to ensure we properly skip the current dnode's bonus area and don't interpret it as a valid dnode. zdb --- The zdb command was updated to display a dnode's size under the "dnsize" column when the object is dumped. For ZIL create log records, zdb will now display the slot count for the object. ztest ----- Ztest chooses a random dnodesize for every newly created object. The random distribution is more heavily weighted toward small dnodes to better simulate real-world datasets. Unused bonus buffer space is filled with non-zero values computed from the object number, dataset id, offset, and generation number. This helps ensure that the dnode traversal code properly skips the interior regions of large dnodes, and that these interior regions are not overwritten by data belonging to other dnodes. A new test visits each object in a dataset. It verifies that the actual dnode size matches what was stored in the ztest block tag when it was created. It also verifies that the unused bonus buffer space is filled with the expected data patterns. ZFS Test Suite -------------- Added six new large dnode-specific tests, and integrated the dnodesize property into existing tests for zfs allow and send/recv. Send/Receive ------------ ZFS send streams for datasets containing large dnodes cannot be received on pools that don't support the large_dnode feature. A send stream with large dnodes sets a DMU_BACKUP_FEATURE_LARGE_DNODE flag which will be unrecognized by an incompatible receiving pool so that the zfs receive will fail gracefully. While not implemented here, it may be possible to generate a backward-compatible send stream from a dataset containing large dnodes. The implementation may be tricky, however, because the send object record for a large dnode would need to be resized to a 512 byte dnode, possibly kicking in a spill block in the process. This means we would need to construct a new SA layout and possibly register it in the SA layout object. The SA layout is normally just sent as an ordinary object record. But if we are constructing new layouts while generating the send stream we'd have to build the SA layout object dynamically and send it at the end of the stream. For sending and receiving between pools that do support large dnodes, the drr_object send record type is extended with a new field to store the dnode slot count. This field was repurposed from unused padding in the structure. ZIL Replay ---------- The dnode slot count is stored in the uppermost 8 bits of the lr_foid field. The bits were unused as the object id is currently capped at 48 bits. Resizing Dnodes --------------- It should be possible to resize a dnode when it is dirtied if the current dnodesize dataset property differs from the dnode's size, but this functionality is not currently implemented. Clearly a dnode can only grow if there are sufficient contiguous unused slots in the dnode block, but it should always be possible to shrink a dnode. Growing dnodes may be useful to reduce fragmentation in a pool with many spill blocks in use. Shrinking dnodes may be useful to allow sending a dataset to a pool that doesn't support the large_dnode feature. Feature Reference Counting -------------------------- The reference count for the large_dnode pool feature tracks the number of datasets that have ever contained a dnode of size larger than 512 bytes. The first time a large dnode is created in a dataset the dataset is converted to an extensible dataset. This is a one-way operation and the only way to decrement the feature count is to destroy the dataset, even if the dataset no longer contains any large dnodes. The complexity of reference counting on a per-dnode basis was too high, so we chose to track it on a per-dataset basis similarly to the large_block feature. Signed-off-by: Ned Bass <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #3542
* Implementation of AVX2 optimized Fletcher-4Jinshan Xiong2016-06-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | New functionality: - Preserves existing scalar implementation. - Adds AVX2 optimized Fletcher-4 computation. - Fastest routines selected on module load (benchmark). - Test case for Fletcher-4 added to ztest. New zcommon module parameters: - zfs_fletcher_4_impl (str): selects the implementation to use. "fastest" - use the fastest version available "cycle" - cycle trough all available impl for ztest "scalar" - use the original version "avx2" - new AVX2 implementation if available Performance comparison (Intel i7 CPU, 1MB data buffers): - Scalar: 4216 MB/s - AVX2: 14499 MB/s See contents of `/sys/module/zcommon/parameters/zfs_fletcher_4_impl` to get list of supported values. If an implementation is not supported on the system, it will not be shown. Currently selected option is enclosed in `[]`. Signed-off-by: Jinshan Xiong <[email protected]> Signed-off-by: Andreas Dilger <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #4330
* Illumos 4929 - want prevsnap propertyMatthew Ahrens2016-01-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | 4929 want prevsnap property Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Matt Amdur <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Reviewed by: Boris Protopopov <[email protected]> Reviewed by: Richard Lowe <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/4929 https://github.com/illumos/illumos-gate/commit/b461c74 Porting notes: - [include/sys/fs/zfs.h] - f67d70 Create an 'overlay' property - 11b9ec Add full SELinux support - [fs/zfs/dsl_dataset.c] - This increases the stack size of dsl_dataset_stats() but nothing has been changed until this is shown to be an issue. Ported-by: kernelOfTruth [email protected] Signed-off-by: Brian Behlendorf <[email protected]>
* Illumos 5027 - zfs large block supportMatthew Ahrens2015-05-111-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 5027 zfs large block support Reviewed by: Alek Pinchuk <[email protected]> Reviewed by: George Wilson <[email protected]> Reviewed by: Josef 'Jeff' Sipek <[email protected]> Reviewed by: Richard Elling <[email protected]> Reviewed by: Saso Kiselkov <[email protected]> Reviewed by: Brian Behlendorf <[email protected]> Approved by: Dan McDonald <[email protected]> References: https://www.illumos.org/issues/5027 https://github.com/illumos/illumos-gate/commit/b515258 Porting Notes: * Included in this patch is a tiny ISP2() cleanup in zio_init() from Illumos 5255. * Unlike the upstream Illumos commit this patch does not impose an arbitrary 128K block size limit on volumes. Volumes, like filesystems, are limited by the zfs_max_recordsize=1M module option. * By default the maximum record size is limited to 1M by the module option zfs_max_recordsize. This value may be safely increased up to 16M which is the largest block size supported by the on-disk format. At the moment, 1M blocks clearly offer a significant performance improvement but the benefits of going beyond this for the majority of workloads are less clear. * The illumos version of this patch increased DMU_MAX_ACCESS to 32M. This was determined not to be large enough when using 16M blocks because the zfs_make_xattrdir() function will fail (EFBIG) when assigning a TX. This was immediately observed under Linux because all newly created files must have a security xattr created and that was failing. Therefore, we've set DMU_MAX_ACCESS to 64M. * On 32-bit platforms a hard limit of 1M is set for blocks due to the limited virtual address space. We should be able to relax this one the ABD patches are merged. Ported-by: Brian Behlendorf <[email protected]> Closes #354
* Illumos 3897 - zfs filesystem and snapshot limitsJerry Jelinek2015-04-281-0/+12
| | | | | | | | | | | | | | | | | | 3897 zfs filesystem and snapshot limits Author: Jerry Jelinek <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Approved by: Christopher Siden <[email protected]> References: https://www.illumos.org/issues/3897 https://github.com/illumos/illumos-gate/commit/a2afb61 Porting Notes: dsl_dataset_snapshot_check(): reduce stack usage using kmem_alloc(). Ported-by: Chris Dunlop <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]>
* Retire spl_module_init()/spl_module_fini()Brian Behlendorf2015-02-241-5/+11
| | | | | | | | | | | | | | In the original implementation of the SPL wrappers were provided for module initialization and cleanup. This was done to abstract away any compatibility code which might be needed for the SPL. As it turned out the only significant compatibility issue was that the default pwd during module load differed under Illumos and Linux. Since this is such as minor thing and the wrappers complicate the code they are being retired. Signed-off-by: Brian Behlendorf <[email protected]> Closes #2985
* Explicitly include SPL compat headersNed Bass2014-11-191-0/+1
| | | | | | | | | | | Inclusion of SPL compatibility headers was moved out of the public header sys/types.h to avoid conflicts with external packages. Include a few compatiblity headers explicitly to cope with that change. Also, sort some linux-specific inclusions alphabetically. Signed-off-by: Ned Bass <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2898
* Create an 'overlay' propertyTurbo Fredriksson2014-08-151-0/+2
| | | | | | | | | | | | | | | Add a new 'overlay' property (default 'off') that controls whether the filesystem should be mounted even if the mountpoint is busy or if it should fail with a 'mountpoint not empty'. Doing overlay mounts is the default mount behavior on Linux, but not in ZFS. It have been decided that following the ZFS behavior should be the default, but this overlay allows for site administrator to override this decision on a per-dataset basis. Signed-off-by: Turbo Fredriksson <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes: #2503
* Illumos 3835 zfs need not store 2 copies of all metadataMatthew Ahrens2014-07-311-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reviewed by: George Wilson <[email protected]> Reviewed by: Adam Leventhal <[email protected]> Reviewed by: Dan McDonald <[email protected]> Approved by: Richard Lowe <[email protected]> Description from Matt Ahrens's bug report at Delphix: Add a new zfs property, "redundant_metadata" which can have values "all" or "most". The default will be "all", which is the current behavior. Setting to "most" will cause us to only store 1 copy of level-1 indirect blocks of user data files. Additional notes: The new man page section for this property states "The exact behavior of which metadata blocks are stored redundantly may change in future releases." and: "When set to most, ZFS stores an extra copy of most types of metadata. This can improve performance of random writes, because less metadata must be written." The current implementation is as described above in Matt's blog. It is controlled by a new global integer "zfs_redundant_metadata_most_ditto_level", currently initialized to 2. When "redundant_metadata" is set to "most", only indirect blocks of the specified level and higher will have additional ditto blocks created. Ported by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2542
* Illumos 4368, 4369.Matthew Ahrens2014-07-291-6/+7
| | | | | | | | | | | | | | | | | 4369 implement zfs bookmarks 4368 zfs send filesystems from readonly pools Reviewed by: Christopher Siden <[email protected]> Reviewed by: George Wilson <[email protected]> Approved by: Garrett D'Amore <[email protected]> References: https://www.illumos.org/issues/4369 https://www.illumos.org/issues/4368 https://github.com/illumos/illumos-gate/commit/78f1710 Ported by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2530
* Check the dataset type more rigorously when fetching properties.Tim Chase2014-05-061-3/+3
| | | | | | | | | | | | | | | | | | | | | | When fetching property values of snapshots, a check against the head dataset type must be performed. Previously, this additional check was performed only when fetching "version", "normalize", "utf8only" or "case". This caused the ZPL properties "acltype", "exec", "devices", "nbmand", "setuid" and "xattr" to be erroneously displayed with meaningless values for snapshots of volumes. It also did not allow for the display of "volsize" of a snapshot of a volume. This patch adds the headcheck flag paramater to zfs_prop_valid_for_type() and zprop_valid_for_type() to indicate the check is being done against a head dataset's type in order that properties valid only for snapshots are handled correctly. This allows the the head check in get_numeric_property() to be performed when fetching a property for a snapshot. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2265
* Implement relatime.Tim Chase2014-01-291-0/+2
| | | | | | | | | | | | Add the "relatime" property. When set to "on", a file's atime will only be updated if the existing atime at least a day old or if the existing ctime or mtime has been updated since the last access. This behavior is compatible with the Linux "relatime" mount option. Signed-off-by: Tim Chase <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #2064 Closes #1917
* Add full SELinux supportMatthew Thode2013-12-191-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Four new dataset properties have been added to support SELinux. They are 'context', 'fscontext', 'defcontext' and 'rootcontext' which map directly to the context options described in mount(8). When one of these properties is set to something other than 'none'. That string will be passed verbatim as a mount option for the given context when the filesystem is mounted. For example, if you wanted the rootcontext for a filesystem to be set to 'system_u:object_r:fs_t' you would set the property as follows: $ zfs set rootcontext="system_u:object_r:fs_t" storage-pool/media This will ensure the filesystem is automatically mounted with that rootcontext. It is equivalent to manually specifying the rootcontext with the -o option like this: $ zfs mount -o rootcontext=system_u:object_r:fs_t storage-pool/media By default all four contexts are set to 'none'. Further information on SELinux contexts is detailed in mount(8) and selinux(8) man pages. Signed-off-by: Matthew Thode <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Signed-off-by: Richard Yao <[email protected]> Closes #1504
* Add module versioningBrian Behlendorf2013-12-061-0/+1
| | | | | | | | | | | | | | | | | | | | | | | Use the standard Linux MODULE_VERSION macro to expose the installed zavl, znvpair, zunicode, zcommon, zfs, and zpios module versions. This will also automatically add a checksum of the .c files and headers in "srcversion". See: /sys/module/zavl/version /sys/module/zavl/srcversion /sys/module/znvpair/version /sys/module/znvpair/srcversion /sys/module/zunicode/version /sys/module/zunicode/srcversion /sys/module/zcommon/version /sys/module/zcommon/srcversion /sys/module/zfs/version /sys/module/zfs/srcversion /sys/module/zpios/version /sys/module/zpios/srcversion Signed-off-by: Brian Behlendorf <[email protected]> Closes #1923
* Illumos #3894Keith M Wesolowski2013-11-041-0/+2
| | | | | | | | | | | | | | 3894 zfs should not allow snapshot of inconsistent dataset Reviewed by: Matthew Ahrens <[email protected]> Approved by: Gordon Ross <[email protected]> References: https://www.illumos.org/issues/3894 illumos/illumos-gate@ca48f36f20f6098ceb19d5b084b6b3d4b8eca9fa Ported-by: Richard Yao <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue #1775
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