Commit 00463c16 authored by Andi Kleen's avatar Andi Kleen Committed by Linus Torvalds
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[PATCH] i386: Use early clobbers for semaphores now



The new code does clobber the result early, so make sure to tell
gcc to not put it into the same register as a input argument
Signed-off-by: default avatarAndi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@osdl.org>
Acked-by: default avatarKyle McMartin <kyle@parisc-linux.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent cdb8355a
......@@ -126,7 +126,7 @@ static inline int down_interruptible(struct semaphore * sem)
"lea %1,%%eax\n\t"
"call __down_failed_interruptible\n"
"2:"
:"=a" (result), "+m" (sem->count)
:"=&a" (result), "+m" (sem->count)
:
:"memory");
return result;
......@@ -148,7 +148,7 @@ static inline int down_trylock(struct semaphore * sem)
"lea %1,%%eax\n\t"
"call __down_failed_trylock\n\t"
"2:\n"
:"=a" (result), "+m" (sem->count)
:"=&a" (result), "+m" (sem->count)
:
:"memory");
return result;
......
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