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4254acb057
mirror_zfs/module/zfs
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Tim Chase 4254acb057 Undirty freed spill blocks. 
If a spill block's dbuf hasn't yet been written when a spill block is
freed, the unwritten version will still be written.  This patch handles
the case in which a spill block's dbuf is freed and undirties it to
prevent it from being written.

The most common case in which this could happen is when xattr=sa is being
used and a long xattr is immediately replaced by a short xattr as in:

	setfattr -n user.test -v very_very_very..._long_value  <file>
	setfattr -n user.test -v short_value  <file>

The first value must be sufficiently long that a spill block is generated
and the second value must be short enough to not require a spill block.
In practice, this would typically happen due to internal xattr operations
as a result of setting acltype=posixacl.

Signed-off-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2663
Closes #2700
Closes #2701
Closes #2717
Closes #2863
Closes #2884
2014-11-17 11:25:48 -08:00
..
arc.c Fix dprintf format specifiers 2014-11-17 11:13:45 -08:00
blkptr.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bplist.c Illumos #3464 2013-09-04 16:01:24 -07:00
bpobj.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
bptree.c Fix dprintf format specifiers 2014-11-17 11:13:45 -08:00
dbuf_stats.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
dbuf.c Undirty freed spill blocks. 2014-11-17 11:25:48 -08:00
ddt_zap.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
ddt.c Change the default 'zfs_dedup_prefetch' value to '0' 2014-09-04 09:50:45 -07:00
dmu_diff.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_object.c Illumos 3693 - restore_object uses at least two transactions to restore an object 2014-10-21 15:26:50 -07:00
dmu_objset.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_send.c Illumos 5162 - zfs recv should use loaned arc buffer to avoid copy 2014-10-21 16:32:11 -07:00
dmu_traverse.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dmu_tx.c Improve reporting of tx assignment wait times 2014-03-04 12:22:24 -08:00
dmu_zfetch.c Use enum type(zfetch_dirn_t) instead 2014-01-23 12:56:33 -08:00
dmu.c Illumos 5162 - zfs recv should use loaned arc buffer to avoid copy 2014-10-21 16:32:11 -07:00
dnode_sync.c Illumos 5117 - spacemap reallocation can cause corruption 2014-09-08 09:42:39 -07:00
dnode.c Illumos 5139 - SEEK_HOLE failed to report a hole at end of file 2014-09-23 10:38:45 -07:00
dsl_bookmark.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
dsl_dataset.c Illumos 5150 - zfs clone of a defer_destroy snapshot causes strangeness 2014-10-21 15:26:58 -07:00
dsl_deadlist.c Illumos #3104: eliminate empty bpobjs 2013-01-08 10:35:43 -08:00
dsl_deleg.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
dsl_destroy.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
dsl_dir.c Illumos 4171, 4172 2014-07-25 16:40:07 -07:00
dsl_pool.c Illumos 4958 zdb trips assert on pools with ashift >= 0xe 2014-10-23 15:30:32 -07:00
dsl_prop.c Check the dataset type more rigorously when fetching properties. 2014-05-06 10:41:46 -07:00
dsl_scan.c Illumos 5138 - add tunable for maximum number of blocks freed in one txg 2014-09-23 14:26:34 -07:00
dsl_synctask.c Export symbols dsl_sync_task{_nowait} 2014-03-07 10:01:36 -08:00
dsl_userhold.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
fm.c Fixed memory leaks in zevent handling 2014-08-20 10:45:16 -07:00
gzip.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
lz4.c Illumos #4936 fix potential overflow in lz4 2014-07-01 14:10:47 -07:00
lzjb.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
Makefile.in Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
metaslab.c Illumos 5213 - panic in metaslab_init due to space_map_open returning ENXIO 2014-11-14 15:37:45 -08:00
range_tree.c Illumos 4976-4984 - metaslab improvements 2014-08-18 08:40:49 -07:00
refcount.c Illumos #3464 2013-09-04 16:01:24 -07:00
rrwlock.c Fix several new KM_SLEEP warnings 2013-09-25 15:44:22 -07:00
sa.c Calculate header size correctly in sa_find_sizes() 2014-05-19 11:55:50 -07:00
sha256.c Add linux sha2 support 2010-08-31 13:41:59 -07:00
spa_boot.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
spa_config.c Update utsname support 2014-10-17 14:58:57 -07:00
spa_errlog.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
spa_history.c Update utsname support 2014-10-17 14:58:57 -07:00
spa_misc.c Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
spa_stats.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
spa.c Illumos 4924 - LZ4 Compression for metadata 2014-10-20 16:17:49 -07:00
space_map.c Fix dprintf format specifiers 2014-11-17 11:13:45 -08:00
space_reftree.c Illumos #4101, #4102, #4103, #4105, #4106 2014-07-22 09:39:16 -07:00
trace.c Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
txg.c Illumos 4753 - increase number of outstanding async writes when sync task is waiting 2014-09-23 13:50:55 -07:00
uberblock.c Illumos #3598 2013-10-31 14:58:04 -07:00
unique.c Switch KM_SLEEP to KM_PUSHPAGE 2012-08-27 12:01:37 -07:00
vdev_cache.c Illumos 4370, 4371 2014-07-28 14:29:58 -07:00
vdev_disk.c Illumos #4374 2014-07-30 09:20:35 -07:00
vdev_file.c Honor zfs_nocacheflush for file vdevs 2014-05-19 13:30:48 -07:00
vdev_label.c Fix function call with uninitialized value in vdev_inuse 2014-09-23 10:32:45 -07:00
vdev_mirror.c Handle NULL mirror child vdev 2014-10-17 14:59:05 -07:00
vdev_missing.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev_queue.c Illumos 4753 - increase number of outstanding async writes when sync task is waiting 2014-09-23 13:50:55 -07:00
vdev_raidz.c Illumos #4045 write throttle & i/o scheduler performance work 2013-12-06 09:32:43 -08:00
vdev_root.c Illumos #3598 2013-10-31 14:58:04 -07:00
vdev.c Illumos 5213 - panic in metaslab_init due to space_map_open returning ENXIO 2014-11-14 15:37:45 -08:00
zap_leaf.c Illumos #4374 2014-07-30 09:20:35 -07:00
zap_micro.c Add object type checking to zap_lockdir() 2014-09-08 09:15:38 -07:00
zap.c Fix dprintf format specifiers 2014-11-17 11:13:45 -08:00
zfeature_common.c Illumos 4924 - LZ4 Compression for metadata 2014-10-20 16:17:49 -07:00
zfeature.c Illumos 4370, 4371 2014-07-28 14:29:58 -07:00
zfs_acl.c Don't perform ACL-to-mode translation on empty ACL 2014-10-21 09:23:27 -07:00
zfs_byteswap.c Add linux kernel module support 2010-08-31 13:41:58 -07:00
zfs_ctldir.c Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
zfs_debug.c Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
zfs_dir.c Revert "Revert "Revert "Fix unlink/xattr deadlock""" 2014-08-11 16:12:36 -07:00
zfs_fm.c Fixed memory leaks in zevent handling 2014-08-20 10:45:16 -07:00
zfs_fuid.c Illumos #3522 2013-10-30 14:51:27 -07:00
zfs_ioctl.c Swap DTRACE_PROBE* with Linux tracepoints 2014-11-17 11:13:55 -08:00
zfs_log.c Only commit the ZIL once in zpl_writepages() (msync() case). 2013-11-23 15:08:29 -08:00
zfs_onexit.c Illumos #3598 2013-10-31 14:58:04 -07:00
zfs_replay.c Linux AIO Support 2014-09-05 15:11:43 -07:00
zfs_rlock.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zfs_sa.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zfs_vfsops.c Fix dprintf format specifiers 2014-11-17 11:13:45 -08:00
zfs_vnops.c Remove checks for mandatory locks 2014-10-22 11:06:53 -07:00
zfs_znode.c Remove checks for mandatory locks 2014-10-22 11:06:53 -07:00
zil.c Export symbols for ZIL interface 2014-11-14 14:39:43 -08:00
zio_checksum.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_compress.c Illumos 4757, 4913 2014-08-01 14:28:05 -07:00
zio_inject.c Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t 2014-08-06 14:48:41 -07:00
zio.c Illumos 4958 zdb trips assert on pools with ashift >= 0xe 2014-10-23 15:30:32 -07:00
zle.c Update core ZFS code from build 121 to build 141. 2010-05-28 13:45:14 -07:00
zpl_ctldir.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_export.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_file.c Suppress AIO kmem warnings 2014-10-20 16:10:25 -07:00
zpl_inode.c cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zpl_super.c Remove shrink_dcache_memory() and shrink_icache_memory() 2014-10-17 14:58:50 -07:00
zpl_xattr.c Linux AIO Support 2014-09-05 15:11:43 -07:00
zrlock.c Export ZFS symbols needed by Lustre. 2010-09-17 16:24:15 -07:00
zvol.c Use long holds in zvol_set_volsize() 2014-01-14 14:46:12 -08:00