Bob Peterson b897da780f gfs2: use i_lock spin_lock for inode qadata
[ Upstream commit 5fcff61eea9efd1f4b60e89d2d686b5feaea100f ]

Before this patch, functions gfs2_qa_get and _put used the i_rw_mutex to
prevent simultaneous access to its i_qadata. But i_rw_mutex is now used
for many other things, including iomap_begin and end, which causes a
conflict according to lockdep. We cannot just remove the lock since
simultaneous opens (gfs2_open -> gfs2_open_common -> gfs2_qa_get) can
then stomp on each others values for i_qadata.

This patch solves the conflict by using the i_lock spin_lock in the inode
to prevent simultaneous access.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-06-09 10:22:40 +02:00
..
2022-02-08 18:34:04 +01:00
2021-08-19 09:02:55 +09:00
2021-09-02 12:32:12 -07:00
2021-08-26 22:28:02 +02:00
2022-04-13 20:59:13 +02:00
2021-12-29 12:28:59 +01:00
2021-09-03 15:33:47 -07:00
2021-08-16 10:50:32 -06:00
2022-05-15 20:18:52 +02:00
2021-08-19 09:02:55 +09:00
2021-11-25 09:48:46 +01:00
2021-08-31 11:13:35 -07:00
2021-09-09 13:25:49 -07:00
2021-11-25 09:49:08 +01:00
2021-08-18 22:08:24 +02:00
2021-12-14 10:57:15 +01:00
2021-08-10 17:57:22 +02:00