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Re: [PATCH] cfq: get rid of cfqq hash [message #12320 is a reply to message #12299]

Wed, 25 April 2007 06:58

Jens Axboe
Messages: 30
Registered: October 2006

Member

On Tue, Apr 24 2007, Vasily Tarasov wrote:
> @@ -1806,7 +1765,11 @@ static int cfq_may_queue(request_queue_t
> * so just lookup a possibly existing queue, or return 'may queue'
> * if that fails
> */
> - cfqq = cfq_find_cfq_hash(cfqd, key, tsk->ioprio);
> + cic = cfq_get_io_context_noalloc(cfqd, tsk);
> + if (!cic)
> + return ELV_MQUEUE_MAY;
> +
> + cfqq = cic->cfqq[rw & REQ_RW_SYNC];
> if (cfqq) {
> cfq_init_prio_data(cfqq);
> cfq_prio_boost(cfqq);

Ahem, how well did you test this patch?

--
Jens Axboe

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[Message index]

		[PATCH] cfq: get rid of cfqq hash By: Vasily Tarasov on Tue, 24 April 2007 13:53
		Re: [PATCH] cfq: get rid of cfqq hash By: Jens Axboe on Tue, 24 April 2007 17:02
		Re: [PATCH] cfq: get rid of cfqq hash By: Jens Axboe on Wed, 25 April 2007 06:58
		Re: [PATCH] cfq: get rid of cfqq hash By: Vasily Tarasov on Wed, 25 April 2007 07:51
		Re: [PATCH] cfq: get rid of cfqq hash By: Jens Axboe on Wed, 25 April 2007 07:57
		Re: [PATCH] cfq: get rid of cfqq hash By: Jens Axboe on Wed, 25 April 2007 10:27
		Re: [PATCH] cfq: get rid of cfqq hash By: Jens Axboe on Wed, 25 April 2007 07:27

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