From: Josef Bacik josef@toxicpanda.com
[ Upstream commit c7e54b5102bf3614cadb9ca32d7be73bad6cecf0 ]
We can just abort the transaction here, and in fact do that for every other failure in this function except these two cases.
CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Filipe Manana fdmanana@suse.com Reviewed-by: Johannes Thumshirn jthumshirn@suse.de Signed-off-by: Josef Bacik josef@toxicpanda.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/ioctl.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 3379490ce54d..119b1c5c279b 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -594,12 +594,18 @@ static noinline int create_subvol(struct inode *dir,
btrfs_i_size_write(dir, dir->i_size + namelen * 2); ret = btrfs_update_inode(trans, root, dir); - BUG_ON(ret); + if (ret) { + btrfs_abort_transaction(trans, root, ret); + goto fail; + }
ret = btrfs_add_root_ref(trans, root->fs_info->tree_root, objectid, root->root_key.objectid, btrfs_ino(dir), index, name, namelen); - BUG_ON(ret); + if (ret) { + btrfs_abort_transaction(trans, root, ret); + goto fail; + }
ret = btrfs_uuid_tree_add(trans, root->fs_info->uuid_root, root_item.uuid, BTRFS_UUID_KEY_SUBVOL,