Messages in this thread Patch in this message | | | Date | Mon, 19 Dec 2005 02:34:42 +0100 | From | Ingo Molnar <> | Subject | [patch 02/15] Generic Mutex Subsystem, add-atomic-xchg-x86_64.patch |
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add atomic_cmpxchg() to x86_64. Needed by the new mutex code.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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include/asm-x86_64/atomic.h | 1 + 1 files changed, 1 insertion(+)
Index: linux/include/asm-x86_64/atomic.h =================================================================== --- linux.orig/include/asm-x86_64/atomic.h +++ linux/include/asm-x86_64/atomic.h @@ -389,6 +389,7 @@ static __inline__ long atomic64_sub_retu #define atomic64_dec_return(v) (atomic64_sub_return(1,v)) #define atomic_cmpxchg(v, old, new) ((int)cmpxchg(&((v)->counter), old, new)) +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) /** * atomic_add_unless - add unless the number is a given value - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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