From: Jens Axboe <axboe@kernel.dk>
To: Ming Lei <ming.lei@redhat.com>
Cc: linux-block@vger.kernel.org
Subject: Re: [PATCH 0/4] blk-mq: improve dispatch lock & quiesce implementation
Date: Fri, 3 Dec 2021 06:57:45 -0700 [thread overview]
Message-ID: <ba10d6b2-3274-0dec-c726-da3fe99b9e68@kernel.dk> (raw)
In-Reply-To: <20211203131534.3668411-1-ming.lei@redhat.com>
On 12/3/21 6:15 AM, Ming Lei wrote:
> Hello,
>
> The 1st patch replaces hctx_lock/hctx_unlock with
> blk_mq_run_dispatch_ops(), so that the fast dispatch code path gets
> optimized a bit.
>
> The 2nd patch moves srcu from hctx into request queue.
>
> The last two patches call blk_mq_run_dispatch_ops once in case of
> issuing directly from list.
Looks good, and makes it easier to do the list issue on top of as well.
I'll take a closer look, thanks.
--
Jens Axboe
next prev parent reply other threads:[~2021-12-03 13:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-03 13:15 [PATCH 0/4] blk-mq: improve dispatch lock & quiesce implementation Ming Lei
2021-12-03 13:15 ` [PATCH 1/4] blk-mq: remove hctx_lock and hctx_unlock Ming Lei
[not found] ` <CGME20211206103121eucas1p2ac12934f15129fe77d7f8d95c02fe447@eucas1p2.samsung.com>
2021-12-06 10:31 ` Marek Szyprowski
2021-12-06 11:12 ` Ming Lei
2021-12-06 11:27 ` Marek Szyprowski
2021-12-03 13:15 ` [PATCH 2/4] blk-mq: move srcu from blk_mq_hw_ctx to request_queue Ming Lei
2021-12-03 13:15 ` [PATCH 3/4] blk-mq: pass request queue to blk_mq_run_dispatch_ops Ming Lei
2021-12-03 13:15 ` [PATCH 4/4] blk-mq: run dispatch lock once in case of issuing from list Ming Lei
2021-12-03 13:57 ` Jens Axboe [this message]
2021-12-03 19:12 ` [PATCH 0/4] blk-mq: improve dispatch lock & quiesce implementation Jens Axboe
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