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| author | Andrew Perepechko <andrew.perepechko@sun.com> | 2010-04-12 22:16:50 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-26 07:47:58 -0700 |
| commit | 527230ce812fb139ec4047c06acd4db63a15ff3e (patch) | |
| tree | 50047fbe70cb102229b933922a0462cb91e138a3 /fs/compat.c | |
| parent | 5e462ec4eb77a087383a384d2067d04e0b6d0621 (diff) | |
quota: Fix possible dq_flags corruption
commit 08261673cb6dc638c39f44d69b76fffb57b92a8b upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/compat.c')
0 files changed, 0 insertions, 0 deletions