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Commit 2a43abd3 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
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[PATCH] sparc64: implement atomic_add_negative()

parent bcd599c6
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include/asm-sparc64/atomic.h
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...@@ -62,6 +62,9 @@ extern int __atomic64_sub(__s64, atomic64_t *); ...@@ -62,6 +62,9 @@ extern int __atomic64_sub(__s64, atomic64_t *);
#define atomic_dec(v) ((void)__atomic_sub(1, v)) #define atomic_dec(v) ((void)__atomic_sub(1, v))
#define atomic64_dec(v) ((void)__atomic64_sub(1, v)) #define atomic64_dec(v) ((void)__atomic64_sub(1, v))
#define atomic_add_negative(i, v) (__atomic_add(i, v) < 0)
#define atomic64_add_negative(i, v) (__atomic64_add(i, v) < 0)
/* Atomic operations are already serializing */ /* Atomic operations are already serializing */
#define smp_mb__before_atomic_dec() barrier() #define smp_mb__before_atomic_dec() barrier()
#define smp_mb__after_atomic_dec() barrier() #define smp_mb__after_atomic_dec() barrier()
......
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