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Date: Tue, 21 Jul 2020 07:59:39 -0700 From: "Darrick J. Wong" <darrick.wong@...cle.com> To: Christoph Hellwig <hch@....de> Cc: Goldwyn Rodrigues <rgoldwyn@...e.de>, Dave Chinner <david@...morbit.com>, Damien Le Moal <damien.lemoal@....com>, Naohiro Aota <naohiro.aota@....com>, Johannes Thumshirn <jth@...nel.org>, Matthew Wilcox <willy@...radead.org>, linux-btrfs@...r.kernel.org, linux-fsdevel@...r.kernel.org, cluster-devel@...hat.com, linux-ext4@...r.kernel.org, linux-xfs@...r.kernel.org Subject: Re: RFC: iomap write invalidation On Tue, Jul 21, 2020 at 04:53:13PM +0200, Christoph Hellwig wrote: > On Mon, Jul 20, 2020 at 04:51:25PM -0500, Goldwyn Rodrigues wrote: > > Hi Christoph, > > > > On 9:46 13/07, Christoph Hellwig wrote: > > > Hi all, > > > > > > this series has two parts: the first one picks up Dave's patch to avoid > > > invalidation entierly for reads, picked up deep down from the btrfs iomap > > > thread. The second one falls back to buffered writes if invalidation fails > > > instead of leaving a stale cache around. Let me know what you think about > > > this approch. > > > > Which kernel version are these changes expected? > > btrfs dio switch to iomap depends on this. > > No idea. Darrick, are you ok with picking this up soon so that > Goldwyn can pull it in? Yes; I was nearly about to ping you to see if you were going to have time to push out a corrected patch 2 in time for ... 5.9? 5.10? --D
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