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Date:   Thu, 20 Apr 2023 14:46:15 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Breno Leitao <leitao@debian.org>
Cc:     Christoph Hellwig <hch@lst.de>, io-uring@vger.kernel.org,
        linux-nvme@lists.infradead.org, asml.silence@gmail.com,
        axboe@kernel.dk, leit@fb.com, linux-kernel@vger.kernel.org,
        linux-block@vger.kernel.org, sagi@grimberg.me, kbusch@kernel.org,
        ming.lei@redhat.com
Subject: Re: [PATCH 1/2] io_uring: Pass whole sqe to commands
Message-ID: <20230420124615.GA733@lst.de>
References: <20230419102930.2979231-1-leitao@debian.org> <20230419102930.2979231-2-leitao@debian.org> <20230420045712.GA4239@lst.de> <ZEEwHk32Y8IcT20n@gmail.com> <20230420123139.GA32030@lst.de> <ZEEyKolzQgfkEOwv@gmail.com>
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On Thu, Apr 20, 2023 at 05:38:02AM -0700, Breno Leitao wrote:
> Since we are not coping the payload anymore, this is not necessary. Now
> we are copying 64 bytes for the single SQE or 128 bytes for double SQE.
> 
> Do you prefer I create a helper that returns the SQE size, instead of
> doing the left shift?

I think a helper would be nice.  And adding another sizeof(sqe) seems
more self documenting then the shift, but if you really prefer the
shift at least write a good comment explaining it.