diff options
Diffstat (limited to 'fs/btrfs/extent_map.c')
| -rw-r--r-- | fs/btrfs/extent_map.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 4a8e02f7b6c7..6fee14ce2e6b 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -261,6 +261,7 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em) em->mod_len = (em->mod_len + em->mod_start) - merge->mod_start; em->mod_start = merge->mod_start; em->generation = max(em->generation, merge->generation); + set_bit(EXTENT_FLAG_MERGED, &em->flags); rb_erase_cached(&merge->rb_node, &tree->map); RB_CLEAR_NODE(&merge->rb_node); @@ -278,6 +279,7 @@ static void try_merge_map(struct extent_map_tree *tree, struct extent_map *em) RB_CLEAR_NODE(&merge->rb_node); em->mod_len = (merge->mod_start + merge->mod_len) - em->mod_start; em->generation = max(em->generation, merge->generation); + set_bit(EXTENT_FLAG_MERGED, &em->flags); free_extent_map(merge); } } @@ -360,7 +362,7 @@ static void extent_map_device_set_bits(struct extent_map *em, unsigned bits) int i; for (i = 0; i < map->num_stripes; i++) { - struct btrfs_bio_stripe *stripe = &map->stripes[i]; + struct btrfs_io_stripe *stripe = &map->stripes[i]; struct btrfs_device *device = stripe->dev; set_extent_bits_nowait(&device->alloc_state, stripe->physical, @@ -375,7 +377,7 @@ static void extent_map_device_clear_bits(struct extent_map *em, unsigned bits) int i; for (i = 0; i < map->num_stripes; i++) { - struct btrfs_bio_stripe *stripe = &map->stripes[i]; + struct btrfs_io_stripe *stripe = &map->stripes[i]; struct btrfs_device *device = stripe->dev; __clear_extent_bit(&device->alloc_state, stripe->physical, @@ -490,6 +492,8 @@ struct extent_map *search_extent_mapping(struct extent_map_tree *tree, */ void remove_extent_mapping(struct extent_map_tree *tree, struct extent_map *em) { + lockdep_assert_held_write(&tree->lock); + WARN_ON(test_bit(EXTENT_FLAG_PINNED, &em->flags)); rb_erase_cached(&em->rb_node, &tree->map); if (!test_bit(EXTENT_FLAG_LOGGING, &em->flags)) @@ -504,6 +508,8 @@ void replace_extent_mapping(struct extent_map_tree *tree, struct extent_map *new, int modified) { + lockdep_assert_held_write(&tree->lock); + WARN_ON(test_bit(EXTENT_FLAG_PINNED, &cur->flags)); ASSERT(extent_map_in_tree(cur)); if (!test_bit(EXTENT_FLAG_LOGGING, &cur->flags)) |