linux-kernel - Re: [PATCH v4 07/14] blk-mq: make blk_mq_commit

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Message-ID: <20230118173745.GC12399@lst.de>
Date:   Wed, 18 Jan 2023 18:37:45 +0100
From:   Christoph Hellwig <hch@....de>
To:     Kemeng Shi <shikemeng@...weicloud.com>
Cc:     hch@....de, axboe@...nel.dk, dwagner@...e.de, hare@...e.de,
        ming.lei@...hat.com, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, john.garry@...wei.com, jack@...e.cz
Subject: Re: [PATCH v4 07/14] blk-mq: make blk_mq_commit_rqs a general
 function for all commits

On Wed, Jan 18, 2023 at 05:37:19PM +0800, Kemeng Shi wrote:
> +/*
> + * blk_mq_commit_rqs will notify driver using bd->last that there is no
> + * more requests. (See comment in struct blk_mq_ops for commit_rqs for
> + * details)
> + * Attention, we should explicitly call this in unusual cases:
> + *  1) did not queue everything initially scheduled to queue
> + *  2) the last attempt to queue a request failed
> + */
> +static void blk_mq_commit_rqs(struct blk_mq_hw_ctx *hctx, int queued,
> +			      bool from_schedule)

Isn't from_schedule always false here as well now?

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@....de>