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Subject: Re: [PATCH] block: account statistics for passthrough requests
To:     Logan Gunthorpe <logang@deltatee.com>, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     Stephen Bates <sbates@raithlin.com>, Christoph Hellwig <hch@lst.de>
References: <20191010233626.15998-1-logang@deltatee.com>
From:   Jens Axboe <axboe@kernel.dk>
Message-ID: <303a3cd8-e95f-651d-83c2-d283a89a8208@kernel.dk>
Date:   Thu, 10 Oct 2019 17:52:18 -0600
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On 10/10/19 5:36 PM, Logan Gunthorpe wrote:
> Presently, passthrough requests are not accounted for because
> blk_do_io_stat() expressly rejects them. Based on some digging
> in the history, this doesn't seem like a concious decision but
> one that evolved from the change from blk_fs_request() to
> blk_rq_is_passthrough().
> 
> To support this, call blk_account_io_start() in blk_execute_rq_nowait()
> and remove the passthrough check in blk_do_io_stat().

Looks good to me, applied.

-- 
Jens Axboe