diff options
| author | Will Deacon <will.deacon@arm.com> | 2017-10-24 11:22:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-10-24 13:17:34 +0200 |
| commit | 5a8897cc7631fa544d079c443800f4420d1b173f (patch) | |
| tree | 85ebb227577173a8744d47fb220379651aa4235b /include/asm-generic | |
| parent | 59ecbbe7b31cd2d86ff9a9f461a00f7e7533aedc (diff) | |
locking/atomics/alpha: Add smp_read_barrier_depends() to _release()/_relaxed() atomics
As part of the fight against smp_read_barrier_depends(), we require
dependency ordering to be preserved when a dependency is headed by a load
performed using an atomic operation.
This patch adds smp_read_barrier_depends() to the _release() and _relaxed()
atomics on alpha, which otherwise lack anything to enforce dependency
ordering.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1508840570-22169-6-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/asm-generic')
0 files changed, 0 insertions, 0 deletions