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43a8536260e76dab4a615164f9e6d6397c6b7778
mirror_zfs/include/sys
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Serapheim Dimitropoulos 43a8536260 Race condition between spa async threads and export 
In the past we've seen multiple race conditions that have
to do with open-context threads async threads and concurrent
calls to spa_export()/spa_destroy() (including the one
referenced in issue #9015).

This patch ensures that only one thread can execute the
main body of spa_export_common() at a time, with subsequent
threads returning with a new error code created just for
this situation, eliminating this way any race condition
bugs introduced by concurrent calls to this function.

Reviewed by: Matt Ahrens <matt@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #9015 
Closes #9044
2019-07-18 13:02:33 -07:00
..
crypto
Add support for selecting encryption backend
2018-08-02 11:59:24 -07:00
fm
Add zpool status -s (slow I/Os) and -p (parseable)
2018-11-08 16:47:24 -08:00
fs
Race condition between spa async threads and export
2019-07-18 13:02:33 -07:00
lua
Fix coverity defects: zfs channel programs
2018-02-20 11:19:42 -08:00
sysevent
Add TRIM support
2019-03-29 09:13:20 -07:00
abd.h
single-chunk scatter ABDs can be treated as linear
2019-06-11 09:02:31 -07:00
aggsum.h
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
arc_impl.h
Linux 4.19-rc3+ compat: Remove refcount_t compat
2018-09-26 10:29:26 -07:00
arc.h
Linux 4.19-rc3+ compat: Remove refcount_t compat
2018-09-26 10:29:26 -07:00
avl_impl.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
avl.h
Remove dead code from AVL tree
2017-10-05 19:28:00 -07:00
blkptr.h
OpenZFS 8067 - zdb should be able to dump literal embedded block pointer
2017-07-07 11:28:01 -07:00
bplist.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
bpobj.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
bptree.h
Illumos 4914 - zfs on-disk bookmark structure should be named *_phys_t
2014-08-06 14:48:41 -07:00
bqueue.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
cityhash.h
OpenZFS 8484 - Implement aggregate sum and use for arc counters
2018-06-06 09:35:59 -07:00
dataset_kstats.h
port async unlinked drain from illumos-nexenta
2019-02-12 10:41:15 -08:00
dbuf.h
Decrease contention on dn_struct_rwlock
2019-07-08 13:18:50 -07:00
ddt.h
Remove dedupditto functionality
2019-06-19 14:54:02 -07:00
dmu_impl.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dmu_objset.h
Pool allocation classes
2018-09-05 18:33:36 -07:00
dmu_recv.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dmu_redact.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dmu_send.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dmu_traverse.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dmu_tx.h
Linux 4.19-rc3+ compat: Remove refcount_t compat
2018-09-26 10:29:26 -07:00
dmu_zfetch.h
Decrease contention on dn_struct_rwlock
2019-07-08 13:18:50 -07:00
dmu.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
dnode.h
Remove code for zfs remap
2019-06-24 16:44:01 -07:00
dsl_bookmark.h
Fix comments on zfs_bookmark_phys
2019-06-22 16:32:26 -07:00
dsl_crypt.h
Allow unencrypted children of encrypted datasets
2019-06-20 12:29:51 -07:00
dsl_dataset.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dsl_deadlist.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
dsl_deleg.h
Remove code for zfs remap
2019-06-24 16:44:01 -07:00
dsl_destroy.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
dsl_dir.h
Remove code for zfs remap
2019-06-24 16:44:01 -07:00
dsl_pool.h
port async unlinked drain from illumos-nexenta
2019-02-12 10:41:15 -08:00
dsl_prop.h
Illumos 6171 - dsl_prop_unregister() slows down dataset eviction.
2016-01-12 10:53:12 -08:00
dsl_scan.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
dsl_synctask.h
OpenZFS 9425 - channel programs can be interrupted
2019-06-22 16:51:46 -07:00
dsl_userhold.h
Illumos #3740
2013-11-04 11:17:48 -08:00
edonr.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
efi_partition.h
Fix spelling
2017-01-03 11:31:18 -06:00
frame.h
Suppress incorrect objtool warnings
2017-12-07 10:28:50 -08:00
hkdf.h
Encryption patch follow-up
2017-10-11 16:54:48 -04:00
Makefile.am
Log Spacemap Project
2019-07-16 10:11:49 -07:00
metaslab_impl.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
metaslab.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
mmp.h
MMP interval and fail_intervals in uberblock
2019-03-21 12:47:57 -07:00
mntent.h
Make zfs mount according to relatime config in dataset
2016-04-05 18:55:59 -07:00
multilist.h
Avoid extra taskq_dispatch() calls by DMU
2019-06-25 12:03:38 -07:00
note.h
Update build system and packaging
2018-05-29 16:00:33 -07:00
nvpair_impl.h
OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations
2018-07-30 11:30:03 -07:00
nvpair.h
Add new fnvlist_lookup_* functions
2018-10-03 15:30:55 -07:00
objlist.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
pathname.h
Disable unused pathname::pn_path* (unneeded in Linux)
2019-07-15 13:57:56 -07:00
policy.h
Add zfs allow and zfs unallow support
2016-06-07 09:16:52 -07:00
range_tree.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
refcount.h
Add zfs_refcount_transfer_ownership_many()
2018-10-09 10:05:48 -07:00
rrwlock.h
Linux 4.19-rc3+ compat: Remove refcount_t compat
2018-09-26 10:29:26 -07:00
sa_impl.h
Linux 4.19-rc3+ compat: Remove refcount_t compat
2018-09-26 10:29:26 -07:00
sa.h
Project Quota on ZFS
2018-02-13 14:54:54 -08:00
sdt.h
Add line info and SET_ERROR() to ZFS debug log
2017-07-25 23:09:48 -07:00
sha2.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
skein.h
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
2016-10-03 14:51:15 -07:00
spa_boot.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
spa_checkpoint.h
Serialize ZTHR operations to eliminate races
2019-01-13 10:09:46 -08:00
spa_checksum.h
Implementation of AVX2 optimized Fletcher-4
2016-06-02 14:30:51 -07:00
spa_impl.h
Race condition between spa async threads and export
2019-07-18 13:02:33 -07:00
spa_log_spacemap.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
spa.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
space_map.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
space_reftree.h
Illumos #4101, #4102, #4103, #4105, #4106
2014-07-22 09:39:16 -07:00
sysevent.h
OpenZFS 6939 - add sysevents to zfs core for commands
2017-07-12 21:28:13 -07:00
trace_acl.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_arc.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_common.h
OpenZFS 6531 - Provide mechanism to artificially limit disk performance
2016-05-26 10:11:51 -07:00
trace_dbgmsg.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_dbuf.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_dmu.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_dnode.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_multilist.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_rrwlock.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_txg.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_vdev.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_zil.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_zio.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace_zrlock.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
trace.h
8659 static dtrace probes unavailable on non-GPL modules
2019-07-08 11:20:53 -07:00
txg_impl.h
OpenZFS 9464 - txg_kick() fails to see that we are quiescing
2018-06-04 14:56:06 -07:00
txg.h
OpenZFS 9425 - channel programs can be interrupted
2019-06-22 16:51:46 -07:00
u8_textprep_data.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
u8_textprep.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
uberblock_impl.h
MMP interval and fail_intervals in uberblock
2019-03-21 12:47:57 -07:00
uberblock.h
Multi-modifier protection (MMP)
2017-07-13 13:54:00 -04:00
uio_impl.h
deadlock between mm_sem and tx assign in zfs_write() and page fault
2018-10-16 11:11:24 -07:00
unique.h
Illumos #3742
2013-11-04 10:55:25 -08:00
uuid.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
vdev_disk.h
Add support for autoexpand property
2018-07-23 15:40:15 -07:00
vdev_file.h
Use a dedicated taskq for vdev_file
2016-12-21 10:47:15 -08:00
vdev_impl.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
vdev_indirect_births.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
vdev_indirect_mapping.h
OpenZFS 7614, 9064 - zfs device evacuation/removal
2018-04-14 12:16:17 -07:00
vdev_initialize.h
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev_raidz_impl.h
Linux 5.0 compat: SIMD compatibility
2019-07-12 09:31:20 -07:00
vdev_raidz.h
Linux 5.0 compat: SIMD compatibility
2019-07-12 09:31:20 -07:00
vdev_removal.h
panic in removal_remap test on 4K devices
2019-06-13 13:12:39 -07:00
vdev_trim.h
Add TRIM support
2019-03-29 09:13:20 -07:00
vdev.h
Add TRIM support
2019-03-29 09:13:20 -07:00
xvattr.h
Linux 4.18 compat: inode timespec -> timespec64
2018-06-19 21:51:18 -07:00
zap_impl.h
OpenZFS 7793 - ztest fails assertion in dmu_tx_willuse_space
2017-03-07 09:51:59 -08:00
zap_leaf.h
Fix ENOSPC in "Handle zap_add() failures in ..."
2018-04-18 14:19:50 -07:00
zap.h
fat zap should prefetch when iterating
2019-06-12 13:13:09 -07:00
zcp_global.h
OpenZFS 7431 - ZFS Channel Programs
2018-02-08 15:28:18 -08:00
zcp_iter.h
OpenZFS 7431 - ZFS Channel Programs
2018-02-08 15:28:18 -08:00
zcp_prop.h
OpenZFS 7431 - ZFS Channel Programs
2018-02-08 15:28:18 -08:00
zcp.h
OpenZFS 9425 - channel programs can be interrupted
2019-06-22 16:51:46 -07:00
zfeature.h
Revert "zhack: Add 'feature disable' command"
2016-05-17 11:52:07 -07:00
zfs_acl.h
Project Quota on ZFS
2018-02-13 14:54:54 -08:00
zfs_context.h
Fix lockdep recursive locking false positive in dbuf_destroy
2019-07-17 09:18:24 -07:00
zfs_ctldir.h
Rename zfs_sb_t -> zfsvfs_t
2017-03-10 09:51:33 -08:00
zfs_debug.h
Log Spacemap Project
2019-07-16 10:11:49 -07:00
zfs_delay.h
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_dir.h
port async unlinked drain from illumos-nexenta
2019-02-12 10:41:15 -08:00
zfs_fuid.h
Update build system and packaging
2018-05-29 16:00:33 -07:00
zfs_ioctl.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
zfs_onexit.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
zfs_project.h
Project Quota on ZFS
2018-02-13 14:54:54 -08:00
zfs_ratelimit.h
Change checksum & IO delay ratelimit values
2018-03-04 17:34:51 -08:00
zfs_rlock.h
OpenZFS 9689 - zfs range lock code should not be zpl-specific
2018-10-11 10:19:33 -07:00
zfs_sa.h
Project Quota on ZFS
2018-02-13 14:54:54 -08:00
zfs_stat.h
Support custom build directories and move includes
2010-09-08 12:38:56 -07:00
zfs_sysfs.h
Fix in-kernel sysfs entries
2018-09-06 21:44:52 -07:00
zfs_vfsops.h
Implement Redacted Send/Receive
2019-06-19 09:48:12 -07:00
zfs_vnops.h
RHEL 7.5 compat: FMODE_KABI_ITERATE
2018-05-02 15:01:24 -07:00
zfs_znode.h
Fix zfs set atime|relatime=off|on behavior on inherited datasets
2019-05-07 10:06:30 -07:00
zil_impl.h
make zil max block size tunable
2019-06-10 11:48:42 -07:00
zil.h
make zil max block size tunable
2019-06-10 11:48:42 -07:00
zio_checksum.h
Remove dependency on linear ABD
2017-03-29 12:24:51 -07:00
zio_compress.h
lz4_decompress_abd declared but not defined
2019-06-13 13:14:34 -07:00
zio_crypt.h
Add support for decryption faults in zinject
2018-05-02 15:36:20 -07:00
zio_impl.h
Add TRIM support
2019-03-29 09:13:20 -07:00
zio_priority.h
Add TRIM support
2019-03-29 09:13:20 -07:00
zio.h
Remove dedupditto functionality
2019-06-19 14:54:02 -07:00
zpl.h
Linux 4.18 compat: inode timespec -> timespec64
2018-06-19 21:51:18 -07:00
zrlock.h
OpenZFS 6328 - Fix cstyle errors in zfs codebase
2017-01-12 09:42:11 -08:00
zthr.h
Serialize ZTHR operations to eliminate races
2019-01-13 10:09:46 -08:00
zvol.h
Add port of FreeBSD 'volmode' property
2017-07-12 13:05:37 -07:00