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mirror_zfs/include
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Chunwei Chen da8f51e16a Use a dedicated taskq for vdev_file 
The introduction of parallel zvol prefetch causes deadlock when using
vdev_file.

spa_async->(spa_namespace_lock)->txg_wait_synced->(wait for txg_sync)
txg_sync->zio_wait->(wait for vdev_file_io_fsync on system_taskq)
zvol_prefetch_minors_impl (on system_taskq)->spa_open_common->(wait for spa_namespace_lock)

We fix this by using dedicated taskq for vdev_file.  This same change
was originally made in commit bc25c93 but reverted in commit aa9af22
when dynamic taskqs were added.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Closes #5506 
Closes #5495
2016-12-21 10:47:15 -08:00
..
linux Use cstyle -cpP in make cstyle check 2016-12-12 10:46:26 -08:00
sys Use a dedicated taskq for vdev_file 2016-12-21 10:47:15 -08:00
libnvpair.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
libuutil_common.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
libuutil_impl.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
libuutil.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
libzfs_core.h DLPX-40252 integrate EP-476 compressed zfs send/receive 2016-09-13 09:58:58 -07:00
libzfs_impl.h OpenZFS 6314 - buffer overflow in dsl_dataset_name 2016-06-28 13:47:03 -07:00
libzfs.h Add -c to zpool iostat & status to run command 2016-11-29 14:45:38 -07:00
Makefile.am Kernel header installation should respect --prefix 2014-10-28 09:37:06 -07:00
zfeature_common.h Add support for user/group dnode accounting & quota 2016-10-07 09:45:13 -07:00
zfs_comutil.h Illumos #2882, #2883, #2900 2013-09-04 15:49:00 -07:00
zfs_deleg.h Add support for user/group dnode accounting & quota 2016-10-07 09:45:13 -07:00
zfs_fletcher.h DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
zfs_namecheck.h Illumos 4368, 4369. 2014-07-29 10:55:29 -07:00
zfs_prop.h Check the dataset type more rigorously when fetching properties. 2014-05-06 10:41:46 -07:00
zpios-ctl.h Fix coverity defects: CID 147540, 147542 2016-11-09 17:35:26 -08:00
zpios-internal.h Add large block support to zpios(1) benchmark 2015-09-22 09:13:20 -07:00