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Date: Mon, 19 Nov 2018 12:59:21 +1100
From: Dave Chinner <david@fromorbit.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, linux-aio@kvack.org,
        linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 3/5] aio: add iocb->ki_blk_qc field
Message-ID: <20181119015921.GQ6311@dastard>
References: <20181117235317.7366-1-axboe@kernel.dk>
 <20181117235317.7366-4-axboe@kernel.dk>
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On Sat, Nov 17, 2018 at 04:53:15PM -0700, Jens Axboe wrote:
> Add the field and have the blockdev direct_IO() helpers set it.
> This is in preparation for being able to poll for iocb completion.

What purpose does this field serve?

And why add it to just blockdev direct_IO and not the other direct
IO paths, too?

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com