| Commit message (Collapse) | Author | Age | Files | Lines |
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For short transactions overhead of context switch can be too large.
Skipping it gives significant latency reduction. For large ones,
including multiple ZIOs, latency is less critical, while throughput
there may become limited by checksumming speed of single CPU core.
To get best of both cases, execute last ZIO directly from calling
thread context to save latency, while all others (if there are any)
enqueue to taskqueues in traditional way.
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Fix ZIL records ordering when ZVOL opened both with and without FSYNC.
Before this an earlier writes to a ZVOL opened without FSYNC could get to
ZIL after later writes to the same ZVOL opened with FSYNC. Fix this by
replicating functionality of ZPL (zv_sync_cnt equivalent to z_sync_cnt),
marking all log records sync if anybody opened the ZVOL with FSYNC.
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illumos/illumos-gate@dcbf3bd6a1f1360fc1afcee9e22c6dcff7844bf2
https://github.com/illumos/illumos-gate/commit/dcbf3bd6a1f1360fc1afcee9e22c6dcff
7844bf2
https://www.illumos.org/issues/6950
When reading compressed data from disk, the ARC should keep the compressed
block cached and only decompress it when consumers access the block. The
uncompressed data should be short-lived allowing the ARC to cache a much large
r
amount of data. The DMU would also maintain a smaller cache of uncompressed
blocks to minimize the impact of decompressing frequently accessed blocks.
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Don Brady <don.brady@intel.com>
Reviewed by: Richard Elling <Richard.Elling@RichardElling.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
Author: George Wilson <george.wilson@delphix.com>
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illumos/illumos-gate@9adfa60d484ce2435f5af77cc99dcd4e692b6660
https://github.com/illumos/illumos-gate/commit/9adfa60d484ce2435f5af77cc99dcd4e6
92b6660
https://www.illumos.org/issues/6314
Callers of dsl_dataset_name pass a buffer of size ZFS_MAXNAMELEN, but
dsl_dataset_name copies the datasets' name PLUS the snapshot name to it,
resulting in a max of 2 * ZFS_MAXNAMELEN + '@'.
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Matthew Ahrens <mahrens@delphix.com>
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Author: Matthew Ahrens <matt@mahrens.org>
illumos/illumos-gate@c3d26abc9ee97b4f60233556aadeb57e0bd30bb9
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illumos/illumos-gate@12380e1e701fda28c9e9f32d01cafb54af279eb5
https://www.illumos.org/issues/5269
When importing a pool (at boot or with zpool import) with many
filesystem, the process can take minutes. It doesn't matter whether
the pool has been exported cleanly or uncleanly. The problem is that
each dataset has its own log chain. On import, all datasets have to be
checked if there are logs to replay. The idea is to speed up this
process by paralellizing it.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Arne Jansen <jansen@webgods.de>
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Reviewed by: Will Andrews <willa@spectralogic.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Justin Gibbs <justing@spectralogic.com>
illumos/illumos-gate@bc9014e6a81272073b9854d9f65dd59e18d18c35
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Convert ARC flags to use enum. Previously, public flags are defined in
arc.h and private flags are defined in arc.c which can lead to confusion
and programming errors.
Consistently use 'hdr' (when referencing arc_buf_hdr_t) instead of 'buf'
or 'ab' because arc_buf_t are often named 'buf' as well.
Illumos issue:
5369 arc flags should be an enum
5370 consistent arc_buf_hdr_t naming scheme
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ZFS large block support. The default recordsize remains at 128KB.
A new tunable/sysctl variable, vfs.zfs.max_recordsize is added to
allow adjusting the permitted maximum record size, or
zfs_max_recordsize, with a default of 1MB. ZFS will not allow
setting recordsize greater than zfs_max_recordsize as a safety
belt, because larger recordsize means greater read and write
latency and more memory usage.
Please note that booting from datasets that have recordsize greater
than 128KB is not supported (but it's Okay to enable the feature on
the pool).
Limited safety belt is provided for mounted root filesystem but use
caution when using a larger value.
Illumos issue:
5027 zfs large block support
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In zil_claim, don't issue warning if we get EBUSY (inconsistent) when
opening an objset, instead, ignore it silently.
Illumos issue:
5140 message about "%recv could not be opened" is printed when
booting after crash
Approved by: re (gjb)
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4914 zfs on-disk bookmark structure should be named *_phys_t
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4757 ZFS embedded-data block pointers ("zero block compression")
4913 zfs release should not be subject to space checks
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4370 avoid transmitting holes during zfs send
4371 DMU code clean up
illumos/illumos-gate@43466aae47bfcd2ad9bf501faec8e75c08095e4f
NOTE: Make sure the boot code is updated if a zpool upgrade is
done on boot zpool.
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performance work
Sponsored by: HybridCluster [merge]
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ZFS comments need cleaner, more consistent style
Illumos ZFS issues:
3741 zfs comments need cleaner, more consistent style
MFC after: 2 weeks
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Enabled ZFS TRIM by default
Reviewed by: pjd (mentor)
Approved by: pjd (mentor)
MFC after: 2 weeks
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Merge change from vendor to reduce diff only.
ZFS dtrace probes are not supported on FreeBSD yet.
Illumos ZFS issues:
3598 want to dtrace when errors are generated in zfs
MFC after: 3 weeks
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Merge synctask code restructuring from vendor.
Modify forward and backward compatibility to support new change.
Illumos ZFS issues:
3464 zfs synctask code needs restructuring
Sponsored by: Hybrid Logic Ltd.
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Import vendor ZFS bugfix fixing a possible deadlock in arc_read().
Illumos ZFS issues:
3498 panic in arc_read(): !refcount_is_zero(&pbuf->b_hdr->b_refcnt)
References:
https://www.illumos.org/issues/3498
MFC after: 2 weeks
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The code builds a map of regions that were freed. On every write the
code consults the map and eventually removes ranges that were freed
before, but are now overwritten.
Freed blocks are not TRIMed immediately. There is a tunable that defines
how many txg we should wait with TRIMming freed blocks (64 by default).
There is a low priority thread that TRIMs ranges when the time comes.
During TRIM we keep in-flight ranges on a list to detect colliding
writes - we have to delay writes that collide with in-flight TRIMs in
case something will be reordered and write will reached the disk before
the TRIM. We don't have to do the same for in-flight writes, as
colliding writes just remove ranges to TRIM.
Sponsored by: multiplay.co.uk
This work includes some important fixes and some improvements obtained
from the zfsonlinux project, including TRIMming entire vdevs on pool
create/add/attach and on pool import for spare and cache vdevs.
Obtained from: zfsonlinux
Submitted by: Etienne Dechamps <etienne.dechamps@ovh.net>
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Illumos issued covered:
1884 Empty "used" field for zfs *space commands
3006 VERIFY[S,U,P] and ASSERT[S,U,P] frequently check if first argument
is zero
3028 zfs {group,user}space -n prints (null) instead of numeric GID/UID
3048 zfs {user,group}space [-s|-S] is broken
3049 zfs {user,group}space -t doesn't really filter the results
3060 zfs {user,group}space -H output isn't tab-delimited
3061 zfs {user,group}space -o doesn't use specified fields order
3064 usr/src/cmd/zpool/zpool_main.c misspells "successful"
3093 zfs {user,group}space's -i is noop
3098 zfs userspace/groupspace fail without saying why when run as non-root
References:
https://www.illumos.org/issues/ + [issue_id]
Obtained from: illumos (vendor/illumos, vendor/illumos-sys)
MFC after: 2 weeks
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3086 unnecessarily setting DS_FLAG_INCONSISTENT on async destroyed datasets
3090 vdev_reopen() during reguid causes vdev to be treated as corrupt
3102 vdev_uberblock_load() and vdev_validate() may read the wrong label
Referenes:
https://www.illumos.org/issues/3086
https://www.illumos.org/issues/3090
https://www.illumos.org/issues/3102
PR: kern/170912, kern/170914
Obtained from: illumos (changeset #13776, #13777)
MFC after: 2 weeks
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in the case of a held dataset during remount.
Detailed description is available at:
https://www.illumos.org/issues/883
illumos-gate revision: 13380:161b964a0e10
Reviewed by: pjd
Approved by: re (kib)
Obtained from: Illumos (Bug #883)
MFC after: 3 days
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Few new things available from now on:
- Data deduplication.
- Triple parity RAIDZ (RAIDZ3).
- zfs diff.
- zpool split.
- Snapshot holds.
- zpool import -F. Allows to rewind corrupted pool to earlier
transaction group.
- Possibility to import pool in read-only mode.
MFC after: 1 month
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OpenSolaris onnv-revision: 10209:91f47f0e7728
6830541 zfs_get_data_trips on a verify
6696242 multiple zfs_fillpage() zfs: accessing past end of object panics
6785914 zfs fails to drop dn_struct_rwlock in recovery code path
Approved by: delphij (mentor)
Obtained from: OpenSolaris (Bug ID 6830541, 6696242, 6785914)
MFC after: 2 weeks
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OpenSolaris revision and Bug IDs:
9701:cc5b64682e64
6803605 should be able to offline log devices
6726045 vdev_deflate_ratio is not set when offlining a log device
6599442 zpool import has faults in the display
Approved by: delphij (mentor)
Obtained from: OpenSolaris (Bug ID 6803605, 6726045, 6599442)
MFC after: 3 weeks
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in Solaris 10 updates 141445-09 and 142901-14.
Detailed information:
(OpenSolaris revisions and Bug IDs, Solaris 10 patch numbers)
7844:effed23820ae
6755435 zfs_open() and zfs_close() needs to use ZFS_ENTER/ZFS_VERIFY_ZP (141445-01)
7897:e520d8258820
6748436 inconsistent zpool.cache in boot_archive could panic a zfs root filesystem upon boot-up (141445-01)
7965:b795da521357
6740164 zpool attach can create an illegal root pool (141909-02)
8084:b811cc60d650
6769612 zpool_import() will continue to write to cachefile even if altroot is set (N/A)
8121:7fd09d4ebd9c
6757430 want an option for zdb to disable space map loading and leak tracking (141445-01)
8129:e4f45a0bfbb0
6542860 ASSERT: reason != VDEV_LABEL_REMOVE||vdev_inuse(vd, crtxg, reason, 0) (141445-01)
8188:fd00c0a81e80
6761100 want zdb option to select older uberblocks (141445-01)
8190:6eeea43ced42
6774886 zfs_setattr() won't allow ndmp to restore SUNWattr_rw (141445-01)
8225:59a9961c2aeb
6737463 panic while trying to write out config file if root pool import fails (141445-01)
8227:f7d7be9b1f56
6765294 Refactor replay (141445-01)
8228:51e9ca9ee3a5
6572357 libzfs should do more to avoid mnttab lookups (141909-01)
6572376 zfs_iter_filesystems and zfs_iter_snapshots get objset stats twice (141909-01)
8241:5a60f16123ba
6328632 zpool offline is a bit too conservative (141445-01)
6739487 ASSERT: txg <= spa_final_txg due to scrub/export race (141445-01)
6767129 ASSERT: cvd->vdev_isspare, in spa_vdev_detach() (141445-01)
6747698 checksum failures after offline -t / export / import / scrub (141445-01)
6745863 ZFS writes to disk after it has been offlined (141445-01)
6722540 50% slowdown on scrub/resilver with certain vdev configurations (141445-01)
6759999 resilver logic rewrites ditto blocks on both source and destination (141445-01)
6758107 I/O should never suspend during spa_load() (141445-01)
6776548 codereview(1) runs off the page when faced with multi-line comments (N/A)
6761406 AMD errata 91 workaround doesn't work on 64-bit systems (141445-01)
8242:e46e4b2f0a03
6770866 GRUB/ZFS should require physical path or devid, but not both (141445-01)
8269:03a7e9050cfd
6674216 "zfs share" doesn't work, but "zfs set sharenfs=on" does (141445-01)
6621164 $SRC/cmd/zfs/zfs_main.c seems to have a syntax error in the translation note (141445-01)
6635482 i18n problems in libzfs_dataset.c and zfs_main.c (141445-01)
6595194 "zfs get" VALUE column is as wide as NAME (141445-01)
6722991 vdev_disk.c: error checking for ddi_pathname_to_dev_t() must test for NODEV (141445-01)
6396518 ASSERT strings shouldn't be pre-processed (141445-01)
8274:846b39508aff
6713916 scrub/resilver needlessly decompress data (141445-01)
8343:655db2375fed
6739553 libzfs_status msgid table is out of sync (141445-01)
6784104 libzfs unfairly rejects numerical values greater than 2^63 (141445-01)
6784108 zfs_realloc() should not free original memory on failure (141445-01)
8525:e0e0e525d0f8
6788830 set large value to reservation cause core dump (141445-01)
6791064 want sysevents for ZFS scrub (141445-01)
6791066 need to be able to set cachefile on faulted pools (141445-01)
6791071 zpool_do_import() should not enable datasets on faulted pools (141445-01)
6792134 getting multiple properties on a faulted pool leads to confusion (141445-01)
8547:bcc7b46e5ff7
6792884 Vista clients cannot access .zfs (141445-01)
8632:36ef517870a3
6798384 It can take a village to raise a zio (141445-01)
8636:7e4ce9158df3
6551866 deadlock between zfs_write(), zfs_freesp(), and zfs_putapage() (141909-01)
6504953 zfs_getpage() misunderstands VOP_GETPAGE() interface (141909-01)
6702206 ZFS read/writer lock contention throttles sendfile() benchmark (141445-01)
6780491 Zone on a ZFS filesystem has poor fork/exec performance (141445-01)
6747596 assertion failed: DVA_EQUAL(BP_IDENTITY(&zio->io_bp_orig), BP_IDENTITY(zio->io_bp))); (141445-01)
8692:692d4668b40d
6801507 ZFS read aggregation should not mind the gap (141445-01)
8697:e62d2612c14d
6633095 creating a filesystem with many properties set is slow (141445-01)
8768:dfecfdbb27ed
6775697 oracle crashes when overwriting after hitting quota on zfs (141909-01)
8811:f8deccf701cf
6790687 libzfs mnttab caching ignores external changes (141445-01)
6791101 memory leak from libzfs_mnttab_init (141445-01)
8845:91af0d9c0790
6800942 smb_session_create() incorrectly stores IP addresses (N/A)
6582163 Access Control List (ACL) for shares (141445-01)
6804954 smb_search - shortname field should be space padded following the NULL terminator (N/A)
6800184 Panic at smb_oplock_conflict+0x35() (N/A)
8876:59d2e67b4b65
6803822 Reboot after replacement of system disk in a ZFS mirror drops to grub> prompt (141445-01)
8924:5af812f84759
6789318 coredump when issue zdb -uuuu poolname/ (141445-01)
6790345 zdb -dddd -e poolname coredump (141445-01)
6797109 zdb: 'zdb -dddddd pool_name/fs_name inode' coredump if the file with inode was deleted (141445-01)
6797118 zdb: 'zdb -dddddd poolname inum' coredump if I miss the fs name (141445-01)
6803343 shareiscsi=on failed, iscsitgtd failed request to share (141445-01)
9030:243fd360d81f
6815893 hang mounting a dataset after booting into a new boot environment (141445-01)
9056:826e1858a846
6809691 'zpool create -f' no longer overwrites ufs infomation (141445-01)
9179:d8fbd96b79b3
6790064 zfs needs to determine uid and gid earlier in create process (141445-01)
9214:8d350e5d04aa
6604992 forced unmount + being in .zfs/snapshot/<snap1> = not happy (141909-01)
6810367 assertion failed: dvp->v_flag & VROOT, file: ../../common/fs/gfs.c, line: 426 (141909-01)
9229:e3f8b41e5db4
6807765 ztest_dsl_dataset_promote_busy needs to clean up after ENOSPC (141445-01)
9230:e4561e3eb1ef
6821169 offlining a device results in checksum errors (141445-01)
6821170 ZFS should not increment error stats for unavailable devices (141445-01)
6824006 need to increase issue and interrupt taskqs threads in zfs (141445-01)
9234:bffdc4fc05c4
6792139 recovering from a suspended pool needs some work (141445-01)
6794830 reboot command hangs on a failed zfs pool (141445-01)
9246:67c03c93c071
6824062 System panicked in zfs_mount due to NULL pointer dereference when running btts and svvs tests (141909-01)
9276:a8a7fc849933
6816124 System crash running zpool destroy on broken zpool (141445-03)
9355:09928982c591
6818183 zfs snapshot -r is slow due to set_snap_props() doing txg_wait_synced() for each new snapshot (141445-03)
9391:413d0661ef33
6710376 log device can show incorrect status when other parts of pool are degraded (141445-03)
9396:f41cf682d0d3 (part already merged)
6501037 want user/group quotas on ZFS (141445-03)
6827260 assertion failed in arc_read(): hdr == pbuf->b_hdr (141445-03)
6815592 panic: No such hold X on refcount Y from zfs_znode_move (141445-03)
6759986 zfs list shows temporary %clone when doing online zfs recv (141445-03)
9404:319573cd93f8
6774713 zfs ignores canmount=noauto when sharenfs property != off (141445-03)
9412:4aefd8704ce0
6717022 ZFS DMU needs zero-copy support (141445-03)
9425:e7ffacaec3a8
6799895 spa_add_spares() needs to be protected by config lock (141445-03)
6826466 want to post sysevents on hot spare activation (141445-03)
6826468 spa 'allowfaulted' needs some work (141445-03)
6826469 kernel support for storing vdev FRU information (141445-03)
6826470 skip posting checksum errors from DTL regions of leaf vdevs (141445-03)
6826471 I/O errors after device remove probe can confuse FMA (141445-03)
6826472 spares should enjoy some of the benefits of cache devices (141445-03)
9443:2a96d8478e95
6833711 gang leaders shouldn't have to be logical (141445-03)
9463:d0bd231c7518
6764124 want zdb to be able to checksum metadata blocks only (141445-03)
9465:8372081b8019
6830237 zfs panic in zfs_groupmember() (141445-03)
9466:1fdfd1fed9c4
6833162 phantom log device in zpool status (141445-03)
9469:4f68f041ddcd
6824968 add ZFS userquota support to rquotad (141445-03)
9470:6d827468d7b5
6834217 godfather I/O should reexecute (141445-03)
9480:fcff33da767f
6596237 Stop looking and start ganging (141909-02)
9493:9933d599bc93
6623978 lwb->lwb_buf != NULL, file ../../../uts/common/fs/zfs/zil.c, line 787, function zil_lwb_commit (141445-06)
9512:64cafcbcc337
6801810 Commit of aligned streaming rewrites to ZIL device causes unwanted disk reads (N/A)
9515:d3b739d9d043
6586537 async zio taskqs can block out userland commands (142901-09)
9554:787363635b6a
6836768 zfs_userspace() callback has no way to indicate failure (N/A)
9574:1eb6a6ab2c57
6838062 zfs panics when an error is encountered in space_map_load() (141909-02)
9583:b0696cd037cc
6794136 Panic BAD TRAP: type=e when importing degraded zraid pool. (141909-03)
9630:e25a03f552e0
6776104 "zfs import" deadlock between spa_unload() and spa_async_thread() (141445-06)
9653:a70048a304d1
6664765 Unable to remove files when using fat-zap and quota exceeded on ZFS filesystem (141445-06)
9688:127be1845343
6841321 zfs userspace / zfs get userused@ doesn't work on mounted snapshot (N/A)
6843069 zfs get userused@S-1-... doesn't work (N/A)
9873:8ddc892eca6e
6847229 assertion failed: refcount_count(&tx->tx_space_written) + delta <= tx->tx_space_towrite in dmu_tx.c (141445-06)
9904:d260bd3fd47c
6838344 kernel heap corruption detected on zil while stress testing (141445-06)
9951:a4895b3dd543
6844900 zfs_ioc_userspace_upgrade leaks (N/A)
10040:38b25aeeaf7a
6857012 zfs panics on zpool import (141445-06)
10000:241a51d8720c
6848242 zdb -e no longer works as expected (N/A)
10100:4a6965f6bef8
6856634 snv_117 not booting: zfs_parse_bootfs: error2 (141445-07)
10160:a45b03783d44
6861983 zfs should use new name <-> SID interfaces (N/A)
6862984 userquota commands can hang (141445-06)
10299:80845694147f
6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (N/A)
10302:a9e3d1987706
6696858 zfs receive of incremental replication stream can dereference NULL pointer and crash (fix lint) (N/A)
10575:2a8816c5173b (partial merge)
6882227 spa_async_remove() shouldn't do a full clear (142901-14)
10800:469478b180d9
6880764 fsync on zfs is broken if writes are greater than 32kb on a hard crash and no log attached (142901-09)
6793430 zdb -ivvvv assertion failure: bp->blk_cksum.zc_word[2] == dmu_objset_id(zilog->zl_os) (N/A)
10801:e0bf032e8673 (partial merge)
6822816 assertion failed: zap_remove_int(ds_next_clones_obj) returns ENOENT (142901-09)
10810:b6b161a6ae4a
6892298 buf->b_hdr->b_state != arc_anon, file: ../../common/fs/zfs/arc.c, line: 2849 (142901-09)
10890:499786962772
6807339 spurious checksum errors when replacing a vdev (142901-13)
11249:6c30f7dfc97b
6906110 bad trap panic in zil_replay_log_record (142901-13)
6906946 zfs replay isn't handling uid/gid correctly (142901-13)
11454:6e69bacc1a5a
6898245 suspended zpool should not cause rest of the zfs/zpool commands to hang (142901-10)
11546:42ea6be8961b (partial merge)
6833999 3-way deadlock in dsl_dataset_hold_ref() and dsl_sync_task_group_sync() (142901-09)
Discussed with: pjd
Approved by: delphij (mentor)
Obtained from: OpenSolaris (multiple Bug IDs)
MFC after: 2 months
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OpenSolaris onnv-revision: 8746:e1d96ca6808c
Approved by: pjd, delphij (mentor)
Obtained from: OpenSolaris (Bug ID 6796377)
MCF after: 1 week
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OpenSolaris onnv revision: 7904:6a124a4ca9c5
Approved by: pjd, delphij (mentor)
Obtained from: OpenSolaris (Bug ID 6761624)
MFC after: 3 days
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OpenSolaris onnv revision: 8109:6147a1bdd359
Approved by: pjd, delphij (mentor)
Obtained from: OpenSolaris (Bug ID 6760048)
MFC after: 3 days
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filesystem was busy.
Submitted by: mm
Approved by: pjd
MFC after: 2 weeks
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back in to zfs.
This is based on a fix that went in to opensolaris on March 9th. However, it uses a dedicated
thread instead of a Solaris' taskq to avoid doing a blocking memory allocation with the vnode
interlock held.
This fixes a long-time deadlock in ZFS. This is not, strictly speaking, an LOR. The spa_zio
thread releases a vnode, this calls in to vn_reclaim which in turn needs to acquire range locks
to sync dirty data out to disk. The range locks are already held by a user-level process waiting
on a condition variable that it the process is waiting on a spa_zio thread to signal it on. The
process could not be signalled because the spa_zio thread could not proceed.
The nature of this problem was not apparent due to ZFS locks opting out of witness which meant
that DDB did not know about the locks that were held by ZFS.
Reviewed by: pjd
MFC after: 7 days
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This bring huge amount of changes, I'll enumerate only user-visible changes:
- Delegated Administration
Allows regular users to perform ZFS operations, like file system
creation, snapshot creation, etc.
- L2ARC
Level 2 cache for ZFS - allows to use additional disks for cache.
Huge performance improvements mostly for random read of mostly
static content.
- slog
Allow to use additional disks for ZFS Intent Log to speed up
operations like fsync(2).
- vfs.zfs.super_owner
Allows regular users to perform privileged operations on files stored
on ZFS file systems owned by him. Very careful with this one.
- chflags(2)
Not all the flags are supported. This still needs work.
- ZFSBoot
Support to boot off of ZFS pool. Not finished, AFAIK.
Submitted by: dfr
- Snapshot properties
- New failure modes
Before if write requested failed, system paniced. Now one
can select from one of three failure modes:
- panic - panic on write error
- wait - wait for disk to reappear
- continue - serve read requests if possible, block write requests
- Refquota, refreservation properties
Just quota and reservation properties, but don't count space consumed
by children file systems, clones and snapshots.
- Sparse volumes
ZVOLs that don't reserve space in the pool.
- External attributes
Compatible with extattr(2).
- NFSv4-ACLs
Not sure about the status, might not be complete yet.
Submitted by: trasz
- Creation-time properties
- Regression tests for zpool(8) command.
Obtained from: OpenSolaris
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* Use LBOLT rather than lbolt to avoid a clash with a FreeBSD global
variable.
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it is only used when dataset is beeing mounted to decide if log should also
be opened.
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ZFS file system was ported from OpenSolaris operating system. The code in under
CDDL license.
I'd like to thank all SUN developers that created this great piece of software.
Supported by: Wheel LTD (http://www.wheel.pl/)
Supported by: The FreeBSD Foundation (http://www.freebsdfoundation.org/)
Supported by: Sentex (http://www.sentex.net/)
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