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atomic: move atomic_add_unless to generic code

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This is in preparation for more generic atomic primitives based on
__atomic_add_unless.

Signed-off-by: Arun Sharma <asharma@fb.com>
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Miller <davem@davemloft.net>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arun Sharma
2011-07-26 16:09:07 -07:00
committed by Linus Torvalds
parent 60063497a9
commit f24219b4e9
26 changed files with 109 additions and 102 deletions
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4
arch/s390/include/asm/atomic.h
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@ -93,7 +93,7 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
return old;
}
static inline int atomic_add_unless(atomic_t *v, int a, int u)
static inline int __atomic_add_unless(atomic_t *v, int a, int u)
{
int c, old;
c = atomic_read(v);
@ -105,7 +105,7 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
break;
c = old;
}
return c != u;
return c;
}