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Commit 35ccfb71 authored by H. Peter Anvin's avatar H. Peter Anvin Committed by H. Peter Anvin
Browse files

x86, asm: Use CC_SET()/CC_OUT() in <asm/rwsem.h> 



Remove open-coded uses of set instructions to use CC_SET()/CC_OUT() in
<asm/rwsem.h>.

Signed-off-by: default avatarH. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/r/1465414726-197858-9-git-send-email-hpa@linux.intel.com


Reviewed-by: default avatarAndy Lutomirski <luto@kernel.org>
Reviewed-by: default avatarBorislav Petkov <bp@suse.de>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
parent 64be6d36

arch/x86/include/asm/rwsem.h

+2 −2
Original line number Diff line number Diff line
@@ -149,10 +149,10 @@ static inline bool __down_write_trylock(struct rw_semaphore *sem) 
		     LOCK_PREFIX "  cmpxchg  %2,%0\n\t"

		     "  jnz	     1b\n\t"

		     "2:\n\t"

		     "  sete         %3\n\t"

		     CC_SET(e)

		     "# ending __down_write_trylock\n\t"

		     : "+m" (sem->count), "=&a" (tmp0), "=&r" (tmp1),

		       "=qm" (result)

		       CC_OUT(e) (result)

		     : "er" (RWSEM_ACTIVE_WRITE_BIAS)

		     : "memory", "cc");

	return result;