tree 752b396f409897a4357ca29bc2f9c3384d29e07d
parent 4c5e6c0e70fd6ca2fa67184fd36a261b3b7b38d0
author Andrew Perepechko <andrew.perepechko@sun.com> 1271096210 +0400
committer Jan Kara <jack@suse.cz> 1271099556 +0200

quota: Fix possible dq_flags corruption

dq_flags are modified non-atomically in do_set_dqblk via __set_bit calls and
atomically for example in mark_dquot_dirty or clear_dquot_dirty.  Hence a
change done by an atomic operation can be overwritten by a change done by a
non-atomic one. Fix the problem by using atomic bitops even in do_set_dqblk.

Signed-off-by: Andrew Perepechko <andrew.perepechko@sun.com>
Signed-off-by: Jan Kara <jack@suse.cz>