From: William Lee Irwin III Add atomic_sub_and_test() to sparc32, implemented in terms of atomic_sub_return(), so reiser4 can be simultaneously microoptimized for x86 and made to pass compilation testing on sparc32. Signed-off-by: Andrew Morton --- 25-akpm/include/asm-sparc/atomic.h | 1 + 1 files changed, 1 insertion(+) diff -puN include/asm-sparc/atomic.h~sparc32-add-atomic_sub_and_test include/asm-sparc/atomic.h --- 25/include/asm-sparc/atomic.h~sparc32-add-atomic_sub_and_test Tue Sep 14 17:18:30 2004 +++ 25-akpm/include/asm-sparc/atomic.h Tue Sep 14 17:18:30 2004 @@ -46,6 +46,7 @@ extern void atomic_set(atomic_t *, int); #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) #define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) +#define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0) /* This is the old 24-bit implementation. It's still used internally * by some sparc-specific code, notably the semaphore implementation. _