tree c4c61b6bde252d3d6f1dc0b62d48cf3a3e486ec1
parent d57e34fdd60be7ffd0b1d86bfa1a553df86b7172
author Peter Zijlstra <a.p.zijlstra@chello.nl> 1274443513 +0200
committer Ingo Molnar <mingo@elte.hu> 1276074756 +0200

arch: Implement local64_t

On 64bit, local_t is of size long, and thus we make local64_t an alias.
On 32bit, we fall back to atomic64_t. (architecture can provide optimized
32-bit version)

(This new facility is to be used by perf events optimizations.)

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: linux-arch@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>