Rohan Puri fd7265c646 Fix deadlock between zfs umount & snapentry_expire ...

zfs umount -> zfsctl_destroy() takes the zfs_snapshot_lock as a
writer and calls zfsctl_snapshot_unmount_cancel(), which waits
for snapentry_expire() if present (when snap is automounted).
This snapentry_expire() itself then waits for zfs_snapshot_lock
as a reader, resulting in a deadlock.

The fix is to only hold the zfs_snapshot_lock over the tree
lookup and removal.  After a successful lookup the lock can
be dropped and zfs_snapentry_t will remain valid until the
reference taken by the lookup is released.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rohan Puri <rohan.puri15@gmail.com>
Closes #7751
Closes #7752

2018-08-01 15:00:02 -07:00

..

abd.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

aggsum.c

Fix preemptible warning in aggsum_add()

2018-06-07 15:55:11 -07:00

arc.c

OpenZFS 9465 - ARC check for 'anon_size > arc_c/2' can stall the system

2018-07-30 11:30:41 -07:00

blkptr.c

Undo c89 workarounds to match with upstream

2017-11-04 13:25:13 -07:00

bplist.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

bpobj.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

bptree.c

Native Encryption for ZFS on Linux

2017-08-14 10:36:48 -07:00

bqueue.c

Call cv_signal() with mutex held

2017-06-26 14:36:49 -07:00

cityhash.c

OpenZFS 8484 - Implement aggregate sum and use for arc counters

2018-06-06 09:35:59 -07:00

dbuf_stats.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

dbuf.c

OpenZFS 9337 - zfs get all is slow due to uncached metadata

2018-07-12 10:49:27 -07:00

ddt_zap.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

ddt.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

dmu_diff.c

Fix issues found with zfs diff

2018-05-01 11:24:20 -07:00

dmu_object.c

OpenZFS 9438 - Holes can lose birth time info if a block has a mix of birth times

2018-07-30 09:27:49 -07:00

dmu_objset.c

OpenZFS 9337 - zfs get all is slow due to uncached metadata

2018-07-12 10:49:27 -07:00

dmu_send.c

Fix 'zfs recv' of non large_dnode send streams

2018-06-28 14:55:11 -07:00

dmu_traverse.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

dmu_tx.c

Introduce kstat dmu_tx_dirty_frees_delay

2018-07-25 09:52:27 -07:00

dmu_zfetch.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

dmu.c

Introduce kstat dmu_tx_dirty_frees_delay

2018-07-25 09:52:27 -07:00

dnode_sync.c

OpenZFS 9439 - ZFS double-free due to failure to dirty indirect block

2018-07-30 09:28:09 -07:00

dnode.c

OpenZFS 9439 - ZFS double-free due to failure to dirty indirect block

2018-07-30 09:28:09 -07:00

dsl_bookmark.c

Undo c89 workarounds to match with upstream

2017-11-04 13:25:13 -07:00

dsl_crypt.c

Add support for decryption faults in zinject

2018-05-02 15:36:20 -07:00

dsl_dataset.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

dsl_deadlist.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

dsl_deleg.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

dsl_destroy.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

dsl_dir.c

OpenZFS 9465 - ARC check for 'anon_size > arc_c/2' can stall the system

2018-07-30 11:30:41 -07:00

dsl_pool.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

dsl_prop.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

dsl_scan.c

dsl_scan_scrub_cb: don't double-account non-embedded blocks

2018-07-24 09:33:56 -07:00

dsl_synctask.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

dsl_userhold.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

edonr_zfs.c

DLPX-44812 integrate EP-220 large memory scalability

2016-11-29 14:34:27 -08:00

fm.c

OpenZFS 9580 - Add a hash-table on top of nvlist to speed-up operations

2018-07-30 11:30:03 -07:00

gzip.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

hkdf.c

Encryption patch follow-up

2017-10-11 16:54:48 -04:00

lz4.c

Fix LZ4_uncompress_unknownOutputSize caused panic

2017-05-19 13:45:46 -07:00

lzjb.c

Change KM_PUSHPAGE -> KM_SLEEP

2015-01-16 14:41:26 -08:00

Makefile.in

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

metaslab.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

mmp.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

multilist.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

pathname.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

policy.c

Take user namespaces into account in policy checks

2018-03-07 15:40:42 -08:00

qat_compress.c

Fix inst_num overflow in qat_crypt.c

2018-05-01 20:44:24 -07:00

qat_crypt.c

Fix inst_num overflow in qat_crypt.c

2018-05-01 20:44:24 -07:00

qat.c

SHA256 QAT acceleration

2018-03-15 10:53:58 -07:00

qat.h

Resolve QAT issues with incompressible data

2018-03-29 17:40:34 -07:00

range_tree.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

refcount.c

Linux 4.11 compat: avoid refcount_t name conflict

2017-02-28 16:10:18 -08:00

rrwlock.c

Fix spelling

2017-01-03 11:31:18 -06:00

sa.c

Fix kernel unaligned access on sparc64

2018-07-11 13:10:40 -07:00

sha256.c

SHA256 QAT acceleration

2018-03-15 10:53:58 -07:00

skein_zfs.c

DLPX-44812 integrate EP-220 large memory scalability

2016-11-29 14:34:27 -08:00

spa_boot.c

Add linux kernel module support

2010-08-31 13:41:58 -07:00

spa_checkpoint.c

OpenZFS 9238 - ZFS Spacemap Encoding V2

2018-07-05 12:02:34 -07:00

spa_config.c

OpenZFS 9591 - ms_shift can be incorrectly changed

2018-06-21 09:35:26 -07:00

spa_errlog.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

spa_history.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

spa_misc.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

spa_stats.c

Add pool state /proc entry, "SUSPENDED" pools

2018-06-06 09:33:54 -07:00

spa.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

space_map.c

OpenZFS 9442 - decrease indirect block size of spacemaps

2018-07-25 14:11:35 -07:00

space_reftree.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

THIRDPARTYLICENSE.cityhash

OpenZFS 8484 - Implement aggregate sum and use for arc counters

2018-06-06 09:35:59 -07:00

THIRDPARTYLICENSE.cityhash.descrip

OpenZFS 8484 - Implement aggregate sum and use for arc counters

2018-06-06 09:35:59 -07:00

trace.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

txg.c

OpenZFS 9464 - txg_kick() fails to see that we are quiescing

2018-06-04 14:56:06 -07:00

uberblock.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

unique.c

Performance optimization of AVL tree comparator functions

2016-08-31 14:35:34 -07:00

vdev_cache.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

vdev_disk.c

Add support for autoexpand property

2018-07-23 15:40:15 -07:00

vdev_file.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

vdev_indirect_births.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

vdev_indirect_mapping.c

OpenZFS 9238 - ZFS Spacemap Encoding V2

2018-07-05 12:02:34 -07:00

vdev_indirect.c

OpenZFS 9238 - ZFS Spacemap Encoding V2

2018-07-05 12:02:34 -07:00

vdev_label.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

vdev_mirror.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

vdev_missing.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

vdev_queue.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

vdev_raidz_math_aarch64_neon_common.h

ABD raidz NEON support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_aarch64_neon.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz_math_aarch64_neonx2.c

ABD raidz NEON support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_avx2.c

ABD raidz avx512f support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_avx512bw.c

ABD: Adapt avx512bw raidz assembly

2016-12-15 17:31:33 -08:00

vdev_raidz_math_avx512f.c

Use cstyle -cpP in make cstyle check

2016-12-12 10:46:26 -08:00

vdev_raidz_math_impl.h

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz_math_scalar.c

ABD Vectorized raidz

2016-11-29 14:34:33 -08:00

vdev_raidz_math_sse2.c

ABD raidz avx512f support

2016-11-29 14:34:33 -08:00

vdev_raidz_math_ssse3.c

codebase style improvements for OpenZFS 6459 port

2017-01-22 13:25:40 -08:00

vdev_raidz_math.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

vdev_raidz.c

OpenZFS 7614, 9064 - zfs device evacuation/removal

2018-04-14 12:16:17 -07:00

vdev_removal.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

vdev_root.c

OpenZFS 9075 - Improve ZFS pool import/load process and corrupted pool recovery

2018-05-08 21:35:27 -07:00

vdev.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

zap_leaf.c

OpenZFS 9328 - zap code can take advantage of c99

2018-05-31 10:53:11 -07:00

zap_micro.c

OpenZFS 9329 - panic in zap_leaf_lookup() due to concurrent zapification

2018-05-31 10:53:49 -07:00

zap.c

OpenZFS 9328 - zap code can take advantage of c99

2018-05-31 10:53:11 -07:00

zcp_get.c

Fix coverity defects: zfs channel programs

2018-02-20 11:19:42 -08:00

zcp_global.c

OpenZFS 8600 - ZFS channel programs - snapshot

2018-02-08 15:29:24 -08:00

zcp_iter.c

OpenZFS 9337 - zfs get all is slow due to uncached metadata

2018-07-12 10:49:27 -07:00

zcp_synctask.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

zcp.c

OpenZFS 9424 - ztest failure: "unprotected error in call to Lua API (Invalid value type 'function' for key 'error')"

2018-07-10 21:29:23 -07:00

zfeature.c

Undo c89 workarounds to match with upstream

2017-11-04 13:25:13 -07:00

zfs_acl.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_byteswap.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_ctldir.c

Fix deadlock between zfs umount & snapentry_expire

2018-08-01 15:00:02 -07:00

zfs_debug.c

enable zfs_dbgmsg() by default, without dprintf()

2018-03-21 15:37:32 -07:00

zfs_dir.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_fm.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_fuid.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_ioctl.c

OpenZFS 8906 - uts: illumos rootfs should support salted cksum

2018-07-27 08:35:28 -07:00

zfs_log.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_onexit.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_ratelimit.c

Change checksum & IO delay ratelimit values

2018-03-04 17:34:51 -08:00

zfs_replay.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_rlock.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zfs_sa.c

Project Quota on ZFS

2018-02-13 14:54:54 -08:00

zfs_vfsops.c

OpenZFS 9337 - zfs get all is slow due to uncached metadata

2018-07-12 10:49:27 -07:00

zfs_vnops.c

Linux 4.18 compat: inode timespec -> timespec64

2018-06-19 21:51:18 -07:00

zfs_znode.c

Linux 4.18 compat: inode timespec -> timespec64

2018-06-19 21:51:18 -07:00

zil.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

zio_checksum.c

Undo c89 workarounds to match with upstream

2017-11-04 13:25:13 -07:00

zio_compress.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zio_crypt.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zio_inject.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zio.c

OpenZFS 9112 - Improve allocation performance on high-end systems

2018-07-31 10:52:33 -07:00

zle.c

Fix zle_decompress out of bound access

2018-02-09 10:08:05 -08:00

zpl_ctldir.c

RHEL 7.5 compat: FMODE_KABI_ITERATE

2018-05-02 15:01:24 -07:00

zpl_export.c

Use cstyle -cpP in make cstyle check

2016-12-12 10:46:26 -08:00

zpl_file.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zpl_inode.c

Linux 4.18 compat: inode timespec -> timespec64

2018-06-19 21:51:18 -07:00

zpl_super.c

Fix zpl_mount() deadlock

2018-07-11 15:49:10 -07:00

zpl_xattr.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zrlock.c

Update build system and packaging

2018-05-29 16:00:33 -07:00

zthr.c

OpenZFS 9166 - zfs storage pool checkpoint

2018-06-26 10:07:42 -07:00

zvol.c

Linux compat 4.18: check_disk_size_change()

2018-06-15 15:05:21 -07:00