Btrfs: switch extent_map to a rw lock

[net-next-2.6.git] / fs / btrfs / extent_map.h

diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index fb6eeef06bb0a88abcf9297c2c6d9156a35af552..6216dfbcf9be7a195632d733248b1cb766c6139e 100644 (file)
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -31,7 +31,7 @@ struct extent_map {
 
 struct extent_map_tree {
        struct rb_root map;
-       spinlock_t lock;
+       rwlock_t lock;
 };
 
 static inline u64 extent_map_end(struct extent_map *em)