X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=include%2Fasm-sparc%2Fspinlock.h;fp=include%2Fasm-sparc%2Fspinlock.h;h=1c75474ba1df706b1abb5e9c96b50f8fc18dfc5b;hp=3350c90c7869f5da811f8fcb9df38716aec590d0;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57

diff --git a/include/asm-sparc/spinlock.h b/include/asm-sparc/spinlock.h
index 3350c90c7..1c75474ba 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 */