On 2018/10/26 下午7:43, Nikolay Borisov wrote:
> It's unnecessary to check map->stripes[i].dev for NULL given its value
> is already set and dereferenced above the the check. No functional changes.
>
> Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>
Thanks,
Qu
> ---
> fs/btrfs/volumes.c | 12 +++++-------
> 1 file changed, 5 insertions(+), 7 deletions(-)
>
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index dc53d94a62aa..f0db43d08456 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -2797,13 +2797,11 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, u64 chunk_offset)
> mutex_unlock(&fs_info->chunk_mutex);
> }
>
> - if (map->stripes[i].dev) {
> - ret = btrfs_update_device(trans, map->stripes[i].dev);
> - if (ret) {
> - mutex_unlock(&fs_devices->device_list_mutex);
> - btrfs_abort_transaction(trans, ret);
> - goto out;
> - }
> + ret = btrfs_update_device(trans, device);
> + if (ret) {
> + mutex_unlock(&fs_devices->device_list_mutex);
> + btrfs_abort_transaction(trans, ret);
> + goto out;
> }
> }
> mutex_unlock(&fs_devices->device_list_mutex);
>
