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| author |   Will Deacon <will.deacon@arm.com> | 2018-06-19 13:53:12 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-06-21 12:52:12 +0200 |
| commit | 84c6591103dbeaf393a092a3fc7b09510825f6b9 (patch) | |
| tree | a5c66f057f1ba7db4c9a4725b5827f40206f6d86 /arch | |
| parent | locking/atomics, asm-generic/bitops/atomic.h: Rewrite using atomic_*() APIs (diff) | |
| download | linux-dev-84c6591103dbeaf393a092a3fc7b09510825f6b9.tar.xz linux-dev-84c6591103dbeaf393a092a3fc7b09510825f6b9.zip | |
locking/atomics, asm-generic/bitops/lock.h: Rewrite using atomic_fetch_*()
The lock bitops can be implemented more efficiently using the atomic_fetch_*()
ops, which provide finer-grained control over the memory ordering semantics
than the bitops.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: yamada.masahiro@socionext.com
Link: https://lore.kernel.org/lkml/1529412794-17720-8-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions