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| author | Aoi Shinkai <shinkoi2005@gmail.com> | 2009-06-10 16:15:42 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-06-11 09:31:55 +0300 |
| commit | 4c7c99788631bab177bd51e15e893be4689bb085 (patch) | |
| tree | 52e50e0b2a30b31dc8c6460e98279b3c1b47c476 /arch/sh/include/asm/spinlock.h | |
| parent | f168dd00a9440a6f644db73bda47718fd12008e4 (diff) | |
| download | op-kernel-dev-4c7c99788631bab177bd51e15e893be4689bb085.zip op-kernel-dev-4c7c99788631bab177bd51e15e893be4689bb085.tar.gz | |
sh: Fix sh4a llsc-based cmpxchg()
This fixes up a typo in the ll/sc based cmpxchg code which apparently
wasn't getting a lot of testing due to the swapped old/new pair. With
that fixed up, the ll/sc code also starts using it and provides its own
atomic_add_unless().
Signed-off-by: Aoi Shinkai <shinkoi2005@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/spinlock.h')
| -rw-r--r-- | arch/sh/include/asm/spinlock.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/include/asm/spinlock.h b/arch/sh/include/asm/spinlock.h index 6028356..a28c9f0 100644 --- a/arch/sh/include/asm/spinlock.h +++ b/arch/sh/include/asm/spinlock.h @@ -26,7 +26,7 @@ #define __raw_spin_is_locked(x) ((x)->lock <= 0) #define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock) #define __raw_spin_unlock_wait(x) \ - do { cpu_relax(); } while ((x)->lock) + do { while (__raw_spin_is_locked(x)) cpu_relax(); } while (0) /* * Simple spin lock operations. There are two variants, one clears IRQ's |
