Re: [PATCH v2 3/6] jbd2: remove journal_clean_one_cp_list()

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On Tue 06-06-23 14:14:44, Zhang Yi wrote:
> From: Zhang Yi <yi.zhang@xxxxxxxxxx>
> 
> journal_clean_one_cp_list() and journal_shrink_one_cp_list() are almost
> the same, so merge them into journal_shrink_one_cp_list(), remove the
> nr_to_scan parameter, always scan and try to free the whole checkpoint
> list.
> 
> Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx>

Looks good. Just one nit below:

> @@ -398,15 +358,14 @@ static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
>   * Called with j_list_lock held.
>   */
>  static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
> -						unsigned long *nr_to_scan,
> -						bool *released)
> +						bool destroy, bool *released)
>  {
>  	struct journal_head *last_jh;
>  	struct journal_head *next_jh = jh;
>  	unsigned long nr_freed = 0;
>  	int ret;

When changing this function, I think it will be more robust calling
convention to unconditionally set *released = false at the beginning of
this function. Then we can remove the initialization from
__jbd2_journal_clean_checkpoint_list().

								Honza

-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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