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kyber-iosched: update shallow depth when setting up hardware queue

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We don't expect the async depth to be smaller than the wake batch
count for sbitmap, but just in case, inform sbitmap of what shallow
depth kyber may use.

Acked-by: Paolo Valente <paolo.valente@linaro.org>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2018-05-09 13:55:14 -06:00
parent 483b7bf2e4
commit 2882064076
1 changed files with 3 additions and 0 deletions
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3
block/kyber-iosched.c
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@ -378,6 +378,7 @@ static void kyber_exit_sched(struct elevator_queue *e)
static int kyber_init_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
{
struct kyber_queue_data *kqd = hctx->queue->elevator->elevator_data;
struct kyber_hctx_data *khd;
int i;
@ -400,6 +401,8 @@ static int kyber_init_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_idx)
khd->batching = 0;
hctx->sched_data = khd;
sbitmap_queue_min_shallow_depth(&hctx->sched_tags->bitmap_tags,
kqd->async_depth);
return 0;
}