From: David Woodhouse Date: Thu, 24 Jul 2008 14:09:43 +0000 (-0400) Subject: Btrfs: Use assert_spin_locked instead of spin_trylock X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=64f26f745084872b916cd1bef6054e21b15c5784;p=linux-beck.git Btrfs: Use assert_spin_locked instead of spin_trylock On UP systems spin_trylock always succeeds Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 8a502ee2f231..954b047639ab 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -208,7 +208,7 @@ int add_extent_mapping(struct extent_map_tree *tree, 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 extent_map *lookup_extent_mapping(struct extent_map_tree *tree, 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 remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em) 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;