1 files changed, 3 insertions, 0 deletions

diff --git a/fs/xfs/linux-2.6/spin.h b/fs/xfs/linux-2.6/spin.h
index bcf60a0b8df0..0039504069a5 100644
--- a/fs/xfs/linux-2.6/spin.h
+++ b/fs/xfs/linux-2.6/spin.h
@@ -45,6 +45,9 @@
 typedef spinlock_t lock_t;
 
 #define SPLDECL(s)                      unsigned long s
+#ifndef DEFINE_SPINLOCK
+#define DEFINE_SPINLOCK(s)              spinlock_t s = SPIN_LOCK_UNLOCKED
+#endif
 
 #define spinlock_init(lock, name)       spin_lock_init(lock)
 #define spinlock_destroy(lock)