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authorBob Breuer <breuerr@mc.net>2006-06-20 00:35:13 -0700
committerDavid S. Miller <davem@davemloft.net>2006-06-20 00:35:13 -0700
commit61fc12d8e5c94176e7c2e04a2eab4c6e36d8dd41 (patch)
treed58e41a70395f3638435ba9f09c4bf5fa994a38f
parent7202fb496af235506a3c6fea836fe4c9957f730e (diff)
[SPARC]: Add missing rw can_lock macros
Fix a link failure by adding the missing can_lock macros for the rw locks. Signed-off-by: Bob Breuer <breuerr@mc.net> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/asm-sparc/spinlock.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-sparc/spinlock.h b/include/asm-sparc/spinlock.h
index 3350c90c786..1c75474ba1d 100644
--- a/include/asm-sparc/spinlock.h
+++ b/include/asm-sparc/spinlock.h
@@ -154,6 +154,9 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
#define __raw_read_trylock(lock) generic__raw_read_trylock(lock)
+#define __raw_read_can_lock(rw) (!((rw)->lock & 0xff))
+#define __raw_write_can_lock(rw) (!(rw)->lock)
+
#endif /* !(__ASSEMBLY__) */
#endif /* __SPARC_SPINLOCK_H */