linux-kernel - Re: [PATCH 32/32] block: remove __REQ op defs and reduce bi_op/bi

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Message-ID: <20151107102147.GD12117@infradead.org>
Date:	Sat, 7 Nov 2015 02:21:47 -0800
From:	Christoph Hellwig <hch@...radead.org>
To:	mchristi@...hat.com
Cc:	linux-fsdevel@...r.kernel.org, dm-devel@...hat.com,
	linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-scsi@...r.kernel.org, drbd-dev@...ts.linbit.com
Subject: Re: [PATCH 32/32] block: remove __REQ op defs and reduce bi_op/bi_rw
 sizes

I love this series!

Also I think it's very good that we finally split the ioprio out to it's
own field.

Thanks a lot for doing this work.

> I was not sure if or how much or where people wanted to stick things.
> There also appears to be room in the bi_flags field. If bi_flags is
> only using 13 bits and there are only 16 REQ_XYZs bits related bios,
> I could put them all in one variable if we wanted to go wild with trying
> to shrink the bio while I am at it..

This sounds interesting, but I'd rather do it as a separate project
later.
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