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Commit ef8bbdfe authored by Josef Bacik's avatar Josef Bacik Committed by Chris Mason
Browse files

Btrfs: fix cache_block_group error handling 



cache block group had a few bugs in the error handling code,
this makes sure paths get properly released and the correct return value
goes out.

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent f25956cc

fs/btrfs/extent-tree.c

+5 −4
Original line number Diff line number Diff line
@@ -66,7 +66,7 @@ static int cache_block_group(struct btrfs_root *root, 
			     struct btrfs_block_group_cache *block_group)

{

	struct btrfs_path *path;

	int ret;

	int ret = 0;

	struct btrfs_key key;

	struct extent_buffer *leaf;

	struct extent_io_tree *free_space_cache;
@@ -102,10 +102,10 @@ static int cache_block_group(struct btrfs_root *root, 
	btrfs_set_key_type(&key, BTRFS_EXTENT_ITEM_KEY);

	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);

	if (ret < 0)

		return ret;

		goto err;

	ret = btrfs_previous_item(root, path, 0, BTRFS_EXTENT_ITEM_KEY);

	if (ret < 0)

		return ret;

		goto err;

	if (ret == 0) {

		leaf = path->nodes[0];

		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
@@ -161,9 +161,10 @@ static int cache_block_group(struct btrfs_root *root, 
				 last + hole_size - 1, GFP_NOFS);

	}

	block_group->cached = 1;

	ret = 0;

err:

	btrfs_free_path(path);

	return 0;

	return ret;

}



struct btrfs_block_group_cache *btrfs_lookup_first_block_group(struct