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Date: Tue, 22 May 2018 22:33:34 +0200
From: Christoph Hellwig <hch@lst.de>
Subject: Re: buffered I/O without buffer heads in xfs and iomap v2
Message-ID: <20180522203334.GA24978@lst.de>
References: <20180518164830.1552-1-hch@lst.de> <20180521204610.GC4507@magnolia>
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To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-mm@kvack.org

On Mon, May 21, 2018 at 01:46:10PM -0700, Darrick J. Wong wrote:
> On Fri, May 18, 2018 at 06:47:56PM +0200, Christoph Hellwig wrote:
> > Hi all,
> > 
> > this series adds support for buffered I/O without buffer heads to
> > the iomap and XFS code.
> > 
> > For now this series only contains support for block size == PAGE_SIZE,
> > with the 4k support split into a separate series.
> > 
> > 
> > A git tree is available at:
> > 
> >     git://git.infradead.org/users/hch/xfs.git xfs-iomap-read.2
> > 
> > Gitweb:
> > 
> >     http://git.infradead.org/users/hch/xfs.git/shortlog/refs/heads/xfs-iomap-read.2
> 
> Hmm, so I pulled this and ran my trivial stupid benchmark on for-next.
> It's a stupid VM with a 2G of RAM and a 12GB virtio-scsi disk backed by
> tmpfs:

The xfs-iomap-read.3 branch in the above repo should sort out these
issues.  Still waiting for some more feedback before reposting.