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block, bfq: remove unused bfq_wr_max_time in struct bfq_data

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bfqd->bfq_wr_max_time is set to 0 in bfq_init_queue and is never changed.
It is only used in bfq_wr_duration when bfq_wr_max_time > 0 which never
meets, so bfqd->bfq_wr_max_time is not used actually. Just remove it.

Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230116095153.3810101-9-shikemeng@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Kemeng Shi 2023-01-16 17:51:53 +08:00 committed by Jens Axboe
parent 87c971de81
commit 323745a3aa
2 changed files with 0 additions and 6 deletions
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4
block/bfq-iosched.c
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@ -1093,9 +1093,6 @@ static unsigned int bfq_wr_duration(struct bfq_data *bfqd)
{
u64 dur;
if (bfqd->bfq_wr_max_time > 0)
return bfqd->bfq_wr_max_time;
dur = bfqd->rate_dur_prod;
do_div(dur, bfqd->peak_rate);
@ -7299,7 +7296,6 @@ static int bfq_init_queue(struct request_queue *q, struct elevator_type *e)
*/
bfqd->bfq_wr_coeff = 30;
bfqd->bfq_wr_rt_max_time = msecs_to_jiffies(300);
bfqd->bfq_wr_max_time = 0;
bfqd->bfq_wr_min_idle_time = msecs_to_jiffies(2000);
bfqd->bfq_wr_min_inter_arr_async = msecs_to_jiffies(500);
bfqd->bfq_wr_max_softrt_rate = 7000; /*

2
block/bfq-iosched.h
View File

@ -769,8 +769,6 @@ struct bfq_data {
* is multiplied.
*/
unsigned int bfq_wr_coeff;
/* maximum duration of a weight-raising period (jiffies) */
unsigned int bfq_wr_max_time;
/* Maximum weight-raising duration for soft real-time processes */
unsigned int bfq_wr_rt_max_time;