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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-21 14:05:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-06-09 11:12:36 +0200 |
| commit | 1996bda2a42480c275656233e631ee0966574be4 (patch) | |
| tree | c4c61b6bde252d3d6f1dc0b62d48cf3a3e486ec1 /arch/ia64/include/asm/local64.h | |
| parent | perf: Simplify the ring-buffer logic: make perf_buffer_alloc() do everything ... (diff) | |
| download | linux-1996bda2a42480c275656233e631ee0966574be4.tar.xz linux-1996bda2a42480c275656233e631ee0966574be4.zip | |
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>
Diffstat (limited to 'arch/ia64/include/asm/local64.h')
| -rw-r--r-- | arch/ia64/include/asm/local64.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/local64.h b/arch/ia64/include/asm/local64.h new file mode 100644 index 000000000000..36c93b5cc239 --- /dev/null +++ b/arch/ia64/include/asm/local64.h @@ -0,0 +1 @@ +#include <asm-generic/local64.h> |