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Diffstat (limited to 'arch/x86/include/asm/rwsem.h')
-rw-r--r--arch/x86/include/asm/rwsem.h8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
index df4cd32b4cc6..2dbe4a721ce5 100644
--- a/arch/x86/include/asm/rwsem.h
+++ b/arch/x86/include/asm/rwsem.h
@@ -204,13 +204,7 @@ static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
*/
static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
{
- long tmp = delta;
-
- asm volatile(LOCK_PREFIX "xadd %0,%1"
- : "+r" (tmp), "+m" (sem->count)
- : : "memory");
-
- return tmp + delta;
+ return delta + xadd(&sem->count, delta);
}
#endif /* __KERNEL__ */