Define __raw_read_can_lock / __raw_write_can_lock.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/spinlock.h b/include/asm-mips/spinlock.h
index 4d0135b..075e970 100644
--- a/include/asm-mips/spinlock.h
+++ b/include/asm-mips/spinlock.h
@@ -119,6 +119,18 @@
* 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;