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Btrfs: switch extent_map to a rw lock
[safe/jmp/linux-2.6]
/
fs
/
btrfs
/
extent_map.h
diff --git
a/fs/btrfs/extent_map.h
b/fs/btrfs/extent_map.h
index
fb6eeef
..
6216dfb
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;
-
spin
lock_t lock;
+
rw
lock_t lock;
};
static inline u64 extent_map_end(struct extent_map *em)