linux-kernel - Re: [PATCH RFT 1/3] blk-mq: Drop busy_iter_fn blk_mq_hw

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Date:   Sun, 28 Nov 2021 11:39:59 +0100
From:   Hannes Reinecke <hare@...e.de>
To:     John Garry <john.garry@...wei.com>, axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        ming.lei@...hat.com, kashyap.desai@...adcom.com
Subject: Re: [PATCH RFT 1/3] blk-mq: Drop busy_iter_fn blk_mq_hw_ctx argument

On 11/2/21 12:27 PM, John Garry wrote:
> The only user of blk_mq_hw_ctx blk_mq_hw_ctx argument is
> blk_mq_rq_inflight().
> 
> Function blk_mq_rq_inflight() uses the hctx to find the associated request
> queue to match against the request. However this same check is already
> done in caller bt_iter(), so drop this check.
> 
> With that change there are no more users of busy_iter_fn blk_mq_hw_ctx
> argument, so drop the argument.
> 
> Signed-off-by: John Garry <john.garry@...wei.com>
> ---
>   block/blk-mq-tag.c     |  2 +-
>   block/blk-mq.c         | 17 ++++++++---------
>   include/linux/blk-mq.h |  3 +--
>   3 files changed, 10 insertions(+), 12 deletions(-)
> 
Reviewed-by Hannes Reinecke <hare@...e.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
hare@...e.de                              +49 911 74053 688
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