tree 7205eff1242051818b57423142394690620c2731
parent 278f6679f454bf185a07d9a4ca355b153482d17a
author Jeff Mahoney <jeffm@suse.com> 1375997687 -0400
committer Jeff Mahoney <jeffm@suse.de> 1375997687 -0400

reiserfs: locking, release lock around quota operations

Previous commits released the write lock across quota operations but
missed several places.  In particular, the free operations can also
call into the file system code and take the write lock, causing
deadlocks.

This patch introduces some more helpers and uses them for quota call
sites.  Without this patch applied, reiserfs + quotas runs into deadlocks
under anything more than trivial load.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>