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From: Christoph Hellwig <hch@infradead.org>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org
Subject: Re: [PATCH 4/4] block: move update request helpers into blk-mq.c
Date: Wed, 13 Oct 2021 18:32:07 +0100	[thread overview]
Message-ID: <YWcYFywO7J0R4oMb@infradead.org> (raw)
In-Reply-To: <20211013164937.985367-5-axboe@kernel.dk>

On Wed, Oct 13, 2021 at 10:49:37AM -0600, Jens Axboe wrote:
> For some reason we still have them in blk-core, with the rest of the
> request completion being in blk-mq. That causes and out-of-line call
> for each completion.
> 
> Move them into blk-mq.c instead.

The status/errno helpers really are core code.  And if we change
the block_rq_complete tracepoint to just take the status and do the
conversion inside the trace event to avoid the fast path out of line
call.

  reply	other threads:[~2021-10-13 17:33 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 16:49 [PATCHSET 0/4] Various block optimizations Jens Axboe
2021-10-13 16:49 ` [PATCH 1/4] block: provide helpers for rq_list manipulation Jens Axboe
2021-10-13 17:11   ` Christoph Hellwig
2021-10-13 17:47     ` Jens Axboe
2021-10-13 16:49 ` [PATCH 2/4] block: inline fast path of driver tag allocation Jens Axboe
2021-10-13 17:22   ` Christoph Hellwig
2021-10-13 17:46     ` Jens Axboe
2021-10-13 17:57       ` Christoph Hellwig
2021-10-13 18:07         ` Jens Axboe
2021-10-13 16:49 ` [PATCH 3/4] block: don't bother iter advancing a fully done bio Jens Axboe
2021-10-13 17:26   ` Christoph Hellwig
2021-10-13 17:46     ` Jens Axboe
2021-10-13 16:49 ` [PATCH 4/4] block: move update request helpers into blk-mq.c Jens Axboe
2021-10-13 17:32   ` Christoph Hellwig [this message]
2021-10-13 17:46     ` Jens Axboe
2021-10-13 17:54       ` Christoph Hellwig
2021-10-13 17:57         ` Jens Axboe
2021-10-14  5:00           ` Christoph Hellwig
2021-10-14 15:14             ` Jens Axboe

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