Files
kernel_google_b1c1/include/linux
Andrea Parri 6aab0ad9a4 bio: fix improper use of smp_mb__before_atomic()
commit f381c6a4bd0ae0fde2d6340f1b9bb0f58d915de6 upstream.

This barrier only applies to the read-modify-write operations; in
particular, it does not apply to the atomic_set() primitive.

Replace the barrier with an smp_mb().

Fixes: dac56212e8 ("bio: skip atomic inc/dec of ->bi_cnt for most use cases")
Cc: stable@vger.kernel.org
Reported-by: "Paul E. McKenney" <paulmck@linux.ibm.com>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-31 06:48:11 -07:00
..
2019-04-17 08:36:45 +02:00
2016-07-08 16:23:11 +02:00
2016-08-25 11:26:48 -04:00
2019-04-20 09:07:54 +02:00
2017-10-08 10:26:06 +02:00
2018-04-24 09:34:18 +02:00
2016-09-14 09:18:06 -06:00
2016-08-11 09:41:35 -06:00
2017-06-14 15:06:00 +02:00
2018-02-28 10:18:33 +01:00
2019-03-23 13:19:52 +01:00
2017-07-15 12:16:11 +02:00
2017-05-14 14:00:22 +02:00
2017-07-12 15:01:02 +02:00
2017-08-06 18:59:43 -07:00
2018-04-24 09:34:12 +02:00
2016-07-22 09:07:02 +02:00
2016-09-24 10:48:18 +02:00
2016-10-20 15:51:28 +11:00
2016-09-16 09:34:15 +01:00
2016-09-14 09:18:09 -06:00
2018-10-10 08:53:18 +02:00
2016-08-10 11:23:44 -04:00
2016-09-15 16:49:39 +02:00
2016-09-27 12:33:47 +02:00
2017-08-24 17:12:19 -07:00
2019-05-10 17:52:09 +02:00
2016-07-29 12:17:52 -07:00
2016-08-28 23:32:41 -04:00
2016-10-19 11:36:22 -06:00
2017-08-24 17:12:21 -07:00
2016-10-14 11:36:59 -07:00
2016-07-12 19:25:38 -07:00
2016-09-27 21:52:00 -04:00
2016-09-08 15:01:10 -07:00
2016-07-06 10:51:14 +01:00
2016-07-26 16:19:19 -07:00
2016-09-08 22:15:25 -07:00
2017-08-30 10:21:40 +02:00
2016-08-28 23:44:55 -04:00
2016-10-05 18:23:36 -04:00
2019-04-17 08:36:39 +02:00
2018-11-13 11:17:02 -08:00
2016-06-20 12:47:15 -07:00
2016-07-19 17:43:38 +03:00
2018-11-27 16:09:41 +01:00
2017-04-21 09:31:21 +02:00
2016-07-26 16:19:19 -07:00
2017-12-25 14:23:37 +01:00
2016-06-25 09:04:48 -07:00
2016-09-30 10:54:03 +02:00
2018-12-05 19:42:42 +01:00