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Date: Wed, 22 Jul 2020 08:18:50 +0200 From: Christoph Hellwig <hch@....de> To: "Darrick J. Wong" <darrick.wong@...cle.com> Cc: Christoph Hellwig <hch@....de>, Dave Chinner <david@...morbit.com>, Goldwyn Rodrigues <rgoldwyn@...e.de>, 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, Dave Chinner <dchinner@...hat.com>, Goldwyn Rodrigues <rgoldwyn@...e.com> Subject: Re: [PATCH 3/3] iomap: fall back to buffered writes for invalidation failures On Tue, Jul 21, 2020 at 01:37:49PM -0700, Darrick J. Wong wrote: > On Tue, Jul 21, 2020 at 08:31:57PM +0200, Christoph Hellwig wrote: > > Failing to invalid the page cache means data in incoherent, which is > > a very bad state for the system. Always fall back to buffered I/O > > through the page cache if we can't invalidate mappings. > > > > Signed-off-by: Christoph Hellwig <hch@....de> > > Acked-by: Dave Chinner <dchinner@...hat.com> > > Reviewed-by: Goldwyn Rodrigues <rgoldwyn@...e.com> > > For the iomap and xfs parts, > Reviewed-by: Darrick J. Wong <darrick.wong@...cle.com> > > But I'd still like acks from Ted, Andreas, and Damien for ext4, gfs2, > and zonefs, respectively. > > (Particularly if anyone was harboring ideas about trying to get this in > before 5.10, though I've not yet heard anyone say that explicitly...) Why would we want to wait another whole merge window?
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