Hou Tao 3288666c72 fscache: Use clear_and_wake_up_bit() in fscache_create_volume_work()
fscache_create_volume_work() uses wake_up_bit() to wake up the processes
which are waiting for the completion of volume creation. According to
comments in wake_up_bit() and waitqueue_active(), an extra smp_mb() is
needed to guarantee the memory order between FSCACHE_VOLUME_CREATING
flag and waitqueue_active() before invoking wake_up_bit().

Fixing it by using clear_and_wake_up_bit() to add the missing memory
barrier.

Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/20230113115211.2895845-3-houtao@huaweicloud.com/ # v3
2023-01-30 12:51:54 +00:00
..
2022-12-23 11:39:18 -08:00
2023-01-20 11:59:01 -08:00
2022-12-13 10:43:59 -08:00
2022-12-15 18:14:21 -08:00
\n
2022-12-12 20:32:50 -08:00
2022-12-13 19:29:45 -08:00
2022-12-13 19:29:45 -08:00
2022-12-11 18:12:18 -08:00
2022-12-14 10:11:51 -08:00
2022-10-20 10:13:27 +02:00
2022-12-13 19:29:45 -08:00
2022-12-12 20:54:39 -08:00
2022-09-24 07:00:00 +02:00
2023-01-07 10:38:11 -08:00
2023-01-24 12:58:47 -08:00
2022-12-11 18:12:18 -08:00
2022-12-15 11:12:21 -08:00
2022-12-23 11:55:54 -08:00
2022-10-10 19:45:17 -07:00
2022-12-13 09:47:48 -08:00
2022-05-09 16:21:46 -04:00
2022-12-12 20:24:51 -08:00
2023-01-06 15:44:32 +01:00
2022-09-11 20:26:07 -07:00
2023-01-05 07:34:21 -08:00
2022-10-20 10:13:27 +02:00
2022-12-14 12:20:00 -08:00
2022-08-20 11:34:33 -04:00
2022-12-11 18:12:17 -08:00
2022-10-10 19:45:17 -07:00
2022-12-12 19:20:05 -08:00
2022-12-15 18:09:48 -08:00
2022-12-12 19:20:05 -08:00
2022-12-12 19:03:10 -08:00
2022-04-01 19:35:56 -07:00
2022-10-10 14:21:11 -07:00
2022-08-03 10:35:43 -07:00
2022-12-13 09:14:50 -08:00
2022-12-12 19:30:18 -08:00
2022-12-13 09:14:50 -08:00
2022-12-21 14:45:25 +01:00
2022-12-12 19:30:18 -08:00
2022-06-28 13:58:05 -04:00
2022-12-13 10:26:38 -08:00
2022-10-26 10:02:34 +02:00
2022-12-12 18:38:47 -08:00