locking/atomic: Add generic try_cmpxchg64 support
authorUros Bizjak <ubizjak@gmail.com>
Sun, 15 May 2022 18:42:03 +0000 (20:42 +0200)
committerPeter Zijlstra <peterz@infradead.org>
Tue, 17 May 2022 22:08:27 +0000 (00:08 +0200)
commit0aa7be05d83cc584da0782405e8007e351dfb6cc
tree738f1ca8c97571ac07ed651abd80dcdd43eb5703
parent6829061315065c7af394d556a887fbf847e4e708
locking/atomic: Add generic try_cmpxchg64 support

Add generic support for try_cmpxchg64{,_acquire,_release,_relaxed}
and their falbacks involving cmpxchg64.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220515184205.103089-2-ubizjak@gmail.com
include/linux/atomic/atomic-arch-fallback.h
include/linux/atomic/atomic-instrumented.h
scripts/atomic/gen-atomic-fallback.sh
scripts/atomic/gen-atomic-instrumented.sh