From d3cb351221ce4b61b0a88c214b25dd6512209e5a Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 3 Feb 2005 13:34:45 +0000
Subject: [PATCH] --- yaml --- r: 10971 b: refs/heads/master c:
 e3c4807825501f0b445fe34b627669be24b59320 h: refs/heads/master i:   10969:
 394d90e80086b7501813888214f538d013bc5c10   10967:
 9a3a417b4c4e135e64a1d675b0552d59dd662bae v: v3

---
 [refs]                            |  2 +-
 trunk/include/asm-mips/spinlock.h | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index f9794caf8639..821ea5f3613b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f638d1971e3135025471c99bf079a24fbb1f3bfa
+refs/heads/master: e3c4807825501f0b445fe34b627669be24b59320
diff --git a/trunk/include/asm-mips/spinlock.h b/trunk/include/asm-mips/spinlock.h
index 4d0135b11156..075e9701d6bc 100644
--- a/trunk/include/asm-mips/spinlock.h
+++ b/trunk/include/asm-mips/spinlock.h
@@ -119,6 +119,18 @@ static inline unsigned int __raw_spin_trylock(raw_spinlock_t *lock)
  * read-locks.
  */
 
+/*
+ * read_can_lock - would read_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define __raw_read_can_lock(rw)	((rw)->lock >= 0)
+
+/*
+ * write_can_lock - would write_trylock() succeed?
+ * @lock: the rwlock in question.
+ */
+#define __raw_write_can_lock(rw)	(!(rw)->lock)
+
 static inline void __raw_read_lock(raw_rwlock_t *rw)
 {
 	unsigned int tmp;