Commit b1ada601 authored by Anton Blanchard's avatar Anton Blanchard Committed by Benjamin Herrenschmidt

atomic: Allow atomic_inc_not_zero to be overridden

We want to implement a ppc64 specific version of atomic_inc_not_zero
so wrap it in an ifdef to allow it to be overridden.
Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Acked-by: default avatarMike Frysinger <vapier@gentoo.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 6c15d7af
...@@ -24,7 +24,9 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u) ...@@ -24,7 +24,9 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u)
* Atomically increments @v by 1, so long as @v is non-zero. * Atomically increments @v by 1, so long as @v is non-zero.
* Returns non-zero if @v was non-zero, and zero otherwise. * Returns non-zero if @v was non-zero, and zero otherwise.
*/ */
#ifndef atomic_inc_not_zero
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
#endif
/** /**
* atomic_inc_not_zero_hint - increment if not null * atomic_inc_not_zero_hint - increment if not null
......
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