mirror_zfs/include
Serapheim Dimitropoulos 1c4b0fc745 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
2019-09-25 11:27:50 -07:00
..
linux Minor style cleanup 2019-09-25 11:27:49 -07:00
spl Retire unused spl_{mutex,rwlock}_{init_fini} 2019-09-25 11:27:49 -07:00
sys Race condition between spa async threads and export 2019-09-25 11:27:50 -07:00
.gitignore Create /proc/sys/kernel/spl/gitrev with git hash 2018-10-08 21:57:02 -07:00
libnvpair.h Add JSON output support to channel programs 2018-03-19 12:40:58 -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 Correct cppcheck errors 2017-09-19 12:17:29 -07:00
libzfs_core.h Add TRIM support 2019-03-29 09:13:20 -07:00
libzfs_impl.h OpenZFS 8115 - parallel zfs mount 2018-11-15 11:33:58 -08:00
libzfs.h Race condition between spa async threads and export 2019-09-25 11:27:50 -07:00
libzutil.h Fix libudev dependency in libzutil 2018-11-06 17:47:52 -08:00
Makefile.am Add libzutil for libzfs or libzpool consumers 2018-11-05 11:22:33 -08:00
thread_pool.h Add libtpool (thread pools) 2017-08-09 15:31:08 -07:00
zfeature_common.h Add bookmark v2 on-disk feature 2019-03-13 10:58:39 -07:00
zfs_comutil.h OpenZFS 9337 - zfs get all is slow due to uncached metadata 2018-07-12 10:49:27 -07:00
zfs_deleg.h OpenZFS 7614, 9064 - zfs device evacuation/removal 2018-04-14 12:16:17 -07:00
zfs_fletcher.h DLPX-44812 integrate EP-220 large memory scalability 2016-11-29 14:34:27 -08:00
zfs_namecheck.h Restrict filesystem creation if name referred either '.' or '..' 2019-09-25 11:27:47 -07:00
zfs_prop.h Add zfs module feature and property info to sysfs 2018-09-02 12:09:53 -07:00