On Sat 08-02-14 17:18:31, Frederic Weisbecker wrote:
> rq_fifo_clear() reset the csd.list through INIT_LIST_HEAD for no clear
> purpose. The csd.list doesn't need to be initialized as a list head
> because it's only ever used as a list node.
>
> Lets remove this useless initialization.
>
> Cc: Andrew Morton <a...@linux-foundation.org>
> Cc: Christoph Hellwig <h...@infradead.org>
> Cc: Ingo Molnar <mi...@kernel.org>
> Cc: Jan Kara <j...@suse.cz>
> Cc: Jens Axboe <jens.ax...@oracle.com>
> Signed-off-by: Frederic Weisbecker <fweis...@gmail.com>
Looks good. You can add:
Reviewed-by: Jan Kara <j...@suse.cz>
Honza
> ---
> include/linux/elevator.h | 5 +----
> 1 file changed, 1 insertion(+), 4 deletions(-)
>
> diff --git a/include/linux/elevator.h b/include/linux/elevator.h
> index 0bdfd46..df63bd3 100644
> --- a/include/linux/elevator.h
> +++ b/include/linux/elevator.h
> @@ -203,10 +203,7 @@ enum {
> #define rb_entry_rq(node) rb_entry((node), struct request, rb_node)
>
> #define rq_entry_fifo(ptr) list_entry((ptr), struct request, queuelist)
> -#define rq_fifo_clear(rq) do { \
> - list_del_init(&(rq)->queuelist); \
> - INIT_LIST_HEAD(&(rq)->csd.list); \
> - } while (0)
> +#define rq_fifo_clear(rq) list_del_init(&(rq)->queuelist)
>
> #else /* CONFIG_BLOCK */
>
> --
> 1.8.3.1
>
--
Jan Kara <j...@suse.cz>
SUSE Labs, CR
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