diff options
Diffstat (limited to 'fs/btrfs/free-space-cache.c')
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index e9cfe9da6bbe..3c353a337b91 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -3762,47 +3762,6 @@ out: return ret; } -void btrfs_freeze_block_group(struct btrfs_block_group *cache) -{ - atomic_inc(&cache->frozen); -} - -void btrfs_unfreeze_block_group(struct btrfs_block_group *block_group) -{ - struct btrfs_fs_info *fs_info = block_group->fs_info; - struct extent_map_tree *em_tree; - struct extent_map *em; - bool cleanup; - - spin_lock(&block_group->lock); - cleanup = (atomic_dec_and_test(&block_group->frozen) && - block_group->removed); - spin_unlock(&block_group->lock); - - if (cleanup) { - mutex_lock(&fs_info->chunk_mutex); - em_tree = &fs_info->mapping_tree; - write_lock(&em_tree->lock); - em = lookup_extent_mapping(em_tree, block_group->start, - 1); - BUG_ON(!em); /* logic error, can't happen */ - remove_extent_mapping(em_tree, em); - write_unlock(&em_tree->lock); - mutex_unlock(&fs_info->chunk_mutex); - - /* once for us and once for the tree */ - free_extent_map(em); - free_extent_map(em); - - /* - * We may have left one free space entry and other possible - * tasks trimming this block group have left 1 entry each one. - * Free them if any. - */ - __btrfs_remove_free_space_cache(block_group->free_space_ctl); - } -} - int btrfs_trim_block_group(struct btrfs_block_group *block_group, u64 *trimmed, u64 start, u64 end, u64 minlen) { |