Commit 76deacf0 authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: hold a ref on the root in create_reloc_inode 



We're creating a reloc inode in the data reloc tree, we need to hold a
ref on the root while we're doing that.

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 3d7babdc

fs/btrfs/relocation.c

+6 −1
Original line number Diff line number Diff line
@@ -4351,10 +4351,14 @@ struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info, 
	root = read_fs_root(fs_info, BTRFS_DATA_RELOC_TREE_OBJECTID);

	if (IS_ERR(root))

		return ERR_CAST(root);

	if (!btrfs_grab_fs_root(root))

		return ERR_PTR(-ENOENT);



	trans = btrfs_start_transaction(root, 6);

	if (IS_ERR(trans))

	if (IS_ERR(trans)) {

		btrfs_put_fs_root(root);

		return ERR_CAST(trans);

	}



	err = btrfs_find_free_objectid(root, &objectid);

	if (err)
@@ -4372,6 +4376,7 @@ struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info, 


	err = btrfs_orphan_add(trans, BTRFS_I(inode));

out:

	btrfs_put_fs_root(root);

	btrfs_end_transaction(trans);

	btrfs_btree_balance_dirty(fs_info);

	if (err) {