freebsd-nq/module
Brian Behlendorf fd23720ae1 Drain iput taskq outside z_teardown_lock
It's unsafe to drain the iput taskq while holding the z_teardown_lock
as a writer.  This is because when the last reference on an inode is
dropped it may still have pages which need to be written to disk.
This will be done through zpl_writepages which will acquire the
z_teardown_lock as a reader in ZFS_ENTER.  Therefore, if we're
holding the lock as a writer in zfs_sb_teardown the unmount will
deadlock.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chris Dunlop <chris@onthe.net.au>
Closes #1988
2014-01-09 15:54:08 -08:00
..
avl Add module versioning 2013-12-06 09:34:41 -08:00
nvpair Fix nvlist 'Bus Error' for Sparc 2014-01-09 15:50:15 -08:00
unicode cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
zcommon Add full SELinux support 2013-12-19 10:37:31 -08:00
zfs Drain iput taskq outside z_teardown_lock 2014-01-09 15:54:08 -08:00
zpios cstyle: Resolve C style issues 2013-12-18 16:46:35 -08:00
.gitignore gitignore: anchor entries at their respective directory 2013-04-02 10:50:17 -07:00
Makefile.in Add KMODDIR to install target 2013-03-06 15:46:40 -08:00