linux-kernel - Re: [PATCH v6 0/8] block: prepare for multipage bvecs

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Date:	Wed, 1 Jun 2016 07:05:22 -0700
From:	Christoph Hellwig <hch@...radead.org>
To:	Mike Snitzer <snitzer@...hat.com>
Cc:	Christoph Hellwig <hch@...radead.org>,
	Ming Lei <ming.lei@...onical.com>, Jens Axboe <axboe@...com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-block@...r.kernel.org, Al Viro <viro@...iv.linux.org.uk>,
	"open list:DRBD DRIVER" <drbd-dev@...ts.linbit.com>,
	Jan Kara <jack@...e.cz>, Joe Thornber <ejt@...hat.com>,
	Keith Busch <keith.busch@...el.com>,
	Kent Overstreet <kent.overstreet@...il.com>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Michal Hocko <mhocko@...e.com>, NeilBrown <neilb@...e.com>,
	Sagi Grimberg <sagig@...lanox.com>, Shaohua Li <shli@...com>,
	Steven Whitehouse <swhiteho@...hat.com>,
	Tejun Heo <tj@...nel.org>,
	"open list:XFS FILESYSTEM" <xfs@....sgi.com>
Subject: Re: [PATCH v6 0/8] block: prepare for multipage bvecs

On Wed, Jun 01, 2016 at 09:51:51AM -0400, Mike Snitzer wrote:
> So should I not push this type of fix to Linus now?  I was going to send
> the above commit and this one to him this week:
> https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.7&id=57b3001b240629ecc5266d28c845e23ca5f11719
> 
> Instead, should bcache be made to not do what it is doing?

I think that's much preferably.  Otherwise we'll get a constant trickles
of patches like that whenever someone tries bcache on top of another
stacking driver.