Re: [PATCH 3/3] iomap: fall back to buffered writes for invalidation failures

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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@xxxxxx>
> > Acked-by: Dave Chinner <dchinner@xxxxxxxxxx>
> > Reviewed-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
> 
> For the iomap and xfs parts,
> Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> 
> 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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