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authorArun Sharma <asharma@fb.com>2011-07-27 03:09:07 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-27 03:49:47 +0400
commitf24219b4e90cf70ec4a211b17fbabc725a0ddf3c (patch)
treec1c753bd425d61a5094995d9835b23b46383d9b2 /arch/x86/include/asm/atomic64_64.h
parent60063497a95e716c9a689af3be2687d261f115b4 (diff)
downloadlinux-f24219b4e90cf70ec4a211b17fbabc725a0ddf3c.tar.xz
atomic: move atomic_add_unless to generic code
This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma <asharma@fb.com> Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86/include/asm/atomic64_64.h')
-rw-r--r--arch/x86/include/asm/atomic64_64.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 49fd1ea22951..017594d403f6 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -202,7 +202,7 @@ static inline long atomic64_xchg(atomic64_t *v, long new)
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as it was not @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
+ * Returns the old value of @v.
*/
static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
{