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| author | David Woodhouse <dwmw2@infradead.org> | 2008-07-24 10:09:43 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:05 -0400 |
| commit | 64f26f745084872b916cd1bef6054e21b15c5784 (patch) | |
| tree | 1007982e9ed04b39ff98957f4eb527c88e87632f /fs/btrfs/extent_map.c | |
| parent | b3c3da71ed88c06bc18a4d8919c6e4af3b933566 (diff) | |
| download | linux-64f26f745084872b916cd1bef6054e21b15c5784.tar.gz linux-64f26f745084872b916cd1bef6054e21b15c5784.tar.bz2 linux-64f26f745084872b916cd1bef6054e21b15c5784.zip | |
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>
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 6 |
1 files changed, 3 insertions, 3 deletions
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; |