X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-powerpc%2Frwsem.h;h=2c2fe9647595bd3de91342000551ae8baae26b9a;hb=a2308b7f0838406c346a2b0259ff88c7fcf41e79;hp=0a5b83a3c9491a7e8f6bc59065d9577cb4539370;hpb=51a0885ed7f883758462926b35fbd6f09f9c717c;p=linux-2.6

diff --git a/include/asm-powerpc/rwsem.h b/include/asm-powerpc/rwsem.h
index 0a5b83a3c9..2c2fe96475 100644
--- a/include/asm-powerpc/rwsem.h
+++ b/include/asm-powerpc/rwsem.h
@@ -4,7 +4,7 @@
 #ifdef __KERNEL__
 
 /*
- * include/asm-ppc64/rwsem.h: R/W semaphores for PPC using the stuff
+ * include/asm-powerpc/rwsem.h: R/W semaphores for PPC using the stuff
  * in lib/rwsem.c.  Adapted largely from include/asm-i386/rwsem.h
  * by Paul Mackerras <paulus@samba.org>.
  */
@@ -159,5 +159,10 @@ static inline int rwsem_atomic_update(int delta, struct rw_semaphore *sem)
 	return atomic_add_return(delta, (atomic_t *)(&sem->count));
 }
 
+static inline int rwsem_is_locked(struct rw_semaphore *sem)
+{
+	return (sem->count != 0);
+}
+
 #endif	/* __KERNEL__ */
 #endif	/* _ASM_POWERPC_RWSEM_H */