Commit 0b2dee5c authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: hold a ref for the root in btrfs_find_orphan_roots 



We lookup roots for every orphan item we have, we need to hold a ref on
the root while we're doing this work.

Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 9f583209

fs/btrfs/root-tree.c

+3 −0
Original line number Diff line number Diff line
@@ -257,6 +257,8 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) 


		root = btrfs_get_fs_root(fs_info, &root_key, false);

		err = PTR_ERR_OR_ZERO(root);

		if (!err && !btrfs_grab_fs_root(root))

			err = -ENOENT;

		if (err && err != -ENOENT) {

			break;

		} else if (err == -ENOENT) {
@@ -287,6 +289,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) 
			set_bit(BTRFS_ROOT_DEAD_TREE, &root->state);

			btrfs_add_dead_root(root);

		}

		btrfs_put_fs_root(root);

	}



	btrfs_free_path(path);