Btrfs: Use assert_spin_locked instead of spin_trylock
On UP systems spin_trylock always succeeds
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 8a502ee..954b047 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -208,7 +208,7 @@
struct extent_map *merge = NULL;
struct rb_node *rb;
- BUG_ON(spin_trylock(&tree->lock));
+ assert_spin_locked(&tree->lock);
rb = tree_insert(&tree->map, em->start, &em->rb_node);
if (rb) {
ret = -EEXIST;
@@ -270,7 +270,7 @@
struct rb_node *next = NULL;
u64 end = range_end(start, len);
- BUG_ON(spin_trylock(&tree->lock));
+ assert_spin_locked(&tree->lock);
rb_node = __tree_search(&tree->map, start, &prev, &next);
if (!rb_node && prev) {
em = rb_entry(prev, struct extent_map, rb_node);
@@ -317,7 +317,7 @@
int ret = 0;
WARN_ON(test_bit(EXTENT_FLAG_PINNED, &em->flags));
- BUG_ON(spin_trylock(&tree->lock));
+ assert_spin_locked(&tree->lock);
rb_erase(&em->rb_node, &tree->map);
em->in_tree = 0;
return ret;