bcache: closures: move control bits one bit right
authorMichael Lyle <mlyle@lyle.org>
Tue, 9 Jan 2018 19:13:23 +0000 (11:13 -0800)
committerJens Axboe <axboe@kernel.dk>
Tue, 9 Jan 2018 19:18:51 +0000 (12:18 -0700)
Otherwise, architectures that do negated adds of atomics (e.g. s390)
to do atomic_sub fail in closure_set_stopped.

Signed-off-by: Michael Lyle <mlyle@lyle.org>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/md/bcache/closure.h

index 392a87c..3b9dfc9 100644 (file)
@@ -127,10 +127,10 @@ enum closure_state {
         * annotate where references are being transferred.
         */
 
-       CLOSURE_BITS_START      = (1U << 27),
-       CLOSURE_DESTRUCTOR      = (1U << 27),
-       CLOSURE_WAITING         = (1U << 29),
-       CLOSURE_RUNNING         = (1U << 31),
+       CLOSURE_BITS_START      = (1U << 26),
+       CLOSURE_DESTRUCTOR      = (1U << 26),
+       CLOSURE_WAITING         = (1U << 28),
+       CLOSURE_RUNNING         = (1U << 30),
 };
 
 #define CLOSURE_GUARD_MASK                                     \