diff options
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index b4e3ab115f5f..c21cd85a2e3a 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3162,7 +3162,19 @@ next_block_group(struct btrfs_root *root, struct btrfs_block_group_cache *cache) { struct rb_node *node; + spin_lock(&root->fs_info->block_group_cache_lock); + + /* If our block group was removed, we need a full search. */ + if (RB_EMPTY_NODE(&cache->cache_node)) { + const u64 next_bytenr = cache->key.objectid + cache->key.offset; + + spin_unlock(&root->fs_info->block_group_cache_lock); + btrfs_put_block_group(cache); + cache = btrfs_lookup_first_block_group(root->fs_info, + next_bytenr); + return cache; + } node = rb_next(&cache->cache_node); btrfs_put_block_group(cache); if (node) { @@ -9389,6 +9401,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, spin_lock(&root->fs_info->block_group_cache_lock); rb_erase(&block_group->cache_node, &root->fs_info->block_group_cache_tree); + RB_CLEAR_NODE(&block_group->cache_node); if (root->fs_info->first_logical_byte == block_group->key.objectid) root->fs_info->first_logical_byte = (u64)-1; |