Re: [PATCH] jbd2: remove repeated assignments in __jbd2_log_wait_for_space

From: Jan Kara
Date: Wed Mar 27 2019 - 12:25:41 EST


On Wed 27-03-19 22:31:35, Liu Song wrote:
> From: Liu Song <liu.song11@xxxxxxxxxx>
>
> At the beginning, nblocks has been assigned. There is no need
> to repeat the assignment in the while loop, and remove it.
>
> Signed-off-by: Liu Song <liu.song11@xxxxxxxxxx>

Looks good. You can add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

Honza

> ---
> fs/jbd2/checkpoint.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
> index 26f8d7e46462..23053de5e999 100644
> --- a/fs/jbd2/checkpoint.c
> +++ b/fs/jbd2/checkpoint.c
> @@ -132,7 +132,6 @@ void __jbd2_log_wait_for_space(journal_t *journal)
> return;
> }
> spin_lock(&journal->j_list_lock);
> - nblocks = jbd2_space_needed(journal);
> space_left = jbd2_log_space_left(journal);
> if (space_left < nblocks) {
> int chkpt = journal->j_checkpoint_transactions != NULL;
> --
> 2.19.1
>
>
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR