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George Wilson 080b310015 Illumos #4756 Fix metaslab_group_preload deadlock 
4756 metaslab_group_preload() could deadlock
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com>
Approved by: Garrett D'Amore <garrett@damore.org>

The metaslab_group_preload() function grabs the mg_lock and then later
tries to grab the metaslab lock. This lock ordering may lead to a
deadlock since other consumers of the mg_lock will grab the metaslab
lock first.

References:
  https://www.illumos.org/issues/4756
  https://github.com/illumos/illumos-gate/commit/30beaff

Ported-by: Prakash Surya <surya1@llnl.gov>
Signed-off-by: Prakash Surya <surya1@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2488
2014-07-22 09:41:32 -07:00
..
arc.c
dmu_tx_assign() should not return ENOMEM
2014-05-01 12:08:53 -07:00
bplist.c
Illumos #3464
2013-09-04 16:01:24 -07:00
bpobj.c
Illumos #3603, #3604: bobj improvements
2013-10-31 14:57:51 -07:00
bptree.c
26126 panic system rather than corrupting pool if we hit bug 26100
2013-11-05 13:18:26 -08:00
dbuf_stats.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
dbuf.c
Illumos 4168, 4169, 4170: ztest, zdb and zhack fixes
2014-07-17 11:37:57 -07:00
ddt_zap.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
ddt.c
Add ddt, ddt_entry, and l2arc_hdr caches
2014-01-07 10:33:11 -08:00
dmu_diff.c
Illumos #3598
2013-10-31 14:58:04 -07:00
dmu_object.c
Illumos #3598
2013-10-31 14:58:04 -07:00
dmu_objset.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
dmu_send.c
Add zfs_send_corrupt_data module option
2013-12-18 16:46:35 -08:00
dmu_traverse.c
Illumos 4504 traverse_visitbp: visit group before user
2014-01-29 15:50:49 -08:00
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
Linux 3.14 compat: rq_for_each_segment in dmu_req_copy
2014-04-10 14:28:51 -07:00
dnode_sync.c
Illumos #3742
2013-11-04 10:55:25 -08:00
dnode.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
dsl_dataset.c
Illumos #4574 get_clones_stat does not call zap_count in non-debug kernel
2014-03-04 11:50:13 -08:00
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
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
dsl_dir.c
dmu_tx kstat cleanup
2014-03-04 12:22:24 -08:00
dsl_pool.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
dsl_prop.c
Check the dataset type more rigorously when fetching properties.
2014-05-06 10:41:46 -07:00
dsl_scan.c
Add erratum for issue #2094
2014-02-21 12:10:40 -08:00
dsl_synctask.c
Export symbols dsl_sync_task{_nowait}
2014-03-07 10:01:36 -08:00
dsl_userhold.c
Some nvlist allocations in hold processing need to use KM_PUSHPAGE.
2013-12-02 14:02:46 -08:00
fm.c
Add zpool_events_seek() functionality
2014-03-31 16:10:57 -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
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
metaslab.c
Illumos #4756 Fix metaslab_group_preload deadlock
2014-07-22 09:41:32 -07:00
range_tree.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -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
Implement -t option to zpool import for temporary pool names
2014-03-20 12:05:30 -07:00
spa_errlog.c
Illumos #3743
2013-11-04 10:55:25 -08:00
spa_history.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
spa_misc.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
spa_stats.c
replace nreserved with ndirty in txgs kstat
2014-03-04 12:22:24 -08:00
spa.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
space_map.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
space_reftree.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
txg.c
Use ddi_time_after and friends to compare time
2014-04-14 13:27:56 -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
Use ddi_time_after and friends to compare time
2014-04-14 13:27:56 -07:00
vdev_disk.c
Add assertion to catch 0-count page
2014-04-25 15:41:19 -07:00
vdev_file.c
Honor zfs_nocacheflush for file vdevs
2014-05-19 13:30:48 -07:00
vdev_label.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
vdev_mirror.c
Illumos #4045 write throttle & i/o scheduler performance work
2013-12-06 09:32:43 -08:00
vdev_missing.c
Illumos #3598
2013-10-31 14:58:04 -07:00
vdev_queue.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
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 #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
zap_leaf.c
Illumos #3598
2013-10-31 14:58:04 -07:00
zap_micro.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
zap.c
Illumos #3743
2013-11-04 10:55:25 -08:00
zfeature_common.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
zfeature.c
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
zfs_acl.c
Allow chown/chgrp when no ACL SAs exist.
2014-01-23 11:07:29 -08:00
zfs_byteswap.c
Add linux kernel module support
2010-08-31 13:41:58 -07:00
zfs_ctldir.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
zfs_debug.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
zfs_dir.c
Illumos #4347 ZPL can use dmu_tx_assign(TXG_WAIT)
2013-12-06 09:30:51 -08:00
zfs_fm.c
Add automatic hot spare functionality
2014-04-02 13:10:08 -07:00
zfs_fuid.c
Illumos #3522
2013-10-30 14:51:27 -07:00
zfs_ioctl.c
Allow for lock-free reading zfsdev_state_list.
2014-05-19 11:45:11 -07:00
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
Illumos #3598
2013-10-31 14:58:04 -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
Propagate errors when registering "relatime" property callback.
2014-02-12 09:38:28 -08:00
zfs_vnops.c
Fix zil_commit() NULL dereference
2014-07-17 15:15:07 -07:00
zfs_znode.c
Fix zil_commit() NULL dereference
2014-07-17 15:15:07 -07:00
zil.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
zio_checksum.c
Illumos #3598
2013-10-31 14:58:04 -07:00
zio_compress.c
Illumos #3598
2013-10-31 14:58:04 -07:00
zio_inject.c
Use ddi_time_after and friends to compare time
2014-04-14 13:27:56 -07:00
zio.c
Revert "Fix __zio_execute() asynchronous dispatch"
2014-06-11 16:32:57 -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
Fix zil_commit() NULL dereference
2014-07-17 15:15:07 -07:00
zpl_inode.c
cstyle: Resolve C style issues
2013-12-18 16:46:35 -08:00
zpl_super.c
Prune metadata from ghost lists in arc_adjust_meta
2014-02-21 16:10:49 -08:00
zpl_xattr.c
Fix zil_commit() NULL dereference
2014-07-17 15:15:07 -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