diff options
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 81123277c2b8..71b1ac155355 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -173,6 +173,9 @@ static inline struct rb_node *tree_search(struct rb_root *root, u64 offset) static int mergable_maps(struct extent_map *prev, struct extent_map *next) { + if (test_bit(EXTENT_FLAG_PINNED, &prev->flags)) + return 0; + if (extent_map_end(prev) == next->start && prev->flags == next->flags && prev->bdev == next->bdev && @@ -320,6 +323,7 @@ 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)); rb_erase(&em->rb_node, &tree->map); em->in_tree = 0; |