From: Christoph Hellwig <hch@lst.de>
To: Matthew Wilcox <willy@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>,
Goldwyn Rodrigues <rgoldwyn@suse.de>,
Dave Chinner <david@fromorbit.com>,
Damien Le Moal <damien.lemoal@wdc.com>,
Naohiro Aota <naohiro.aota@wdc.com>,
Johannes Thumshirn <jth@kernel.org>,
linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
cluster-devel@redhat.com, linux-ext4@vger.kernel.org,
linux-xfs@vger.kernel.org
Subject: Re: RFC: iomap write invalidation
Date: Tue, 21 Jul 2020 17:06:15 +0200 [thread overview]
Message-ID: <20200721150615.GA10330@lst.de> (raw)
In-Reply-To: <20200721150432.GH15516@casper.infradead.org>
On Tue, Jul 21, 2020 at 04:04:32PM +0100, Matthew Wilcox wrote:
> 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?
>
> I thought you were going to respin this with EREMCHG changed to ENOTBLK?
Oh, true. I'll do that ASAP.
next prev parent reply other threads:[~2020-07-21 15:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 7:46 RFC: iomap write invalidation Christoph Hellwig
2020-07-13 7:46 ` [PATCH 1/2] iomap: Only invalidate page cache pages on direct IO writes Christoph Hellwig
2020-07-13 7:46 ` [PATCH 2/2] iomap: fall back to buffered writes for invalidation failures Christoph Hellwig
2020-07-13 11:55 ` Matthew Wilcox
2020-07-14 11:00 ` Christoph Hellwig
2020-07-13 12:20 ` Goldwyn Rodrigues
2020-07-13 16:09 ` David Sterba
2020-07-13 15:39 ` Darrick J. Wong
2020-07-14 11:00 ` Christoph Hellwig
2020-07-14 1:41 ` Damien Le Moal
2020-07-15 1:47 ` RFC: iomap write invalidation Dave Chinner
2020-07-20 21:51 ` Goldwyn Rodrigues
2020-07-21 14:53 ` Christoph Hellwig
2020-07-21 14:59 ` Darrick J. Wong
2020-07-21 15:04 ` Matthew Wilcox
2020-07-21 15:06 ` Christoph Hellwig [this message]
2020-07-21 15:14 ` Matthew Wilcox
2020-07-21 15:16 ` Christoph Hellwig
2020-07-21 15:27 ` Darrick J. Wong
2020-07-21 15:41 ` Christoph Hellwig
2020-07-21 15:59 ` Darrick J. Wong
2020-07-21 16:01 ` Christoph Hellwig
2020-07-21 16:05 ` Darrick J. Wong
2020-07-21 15:31 ` Matthew Wilcox
2020-07-21 15:42 ` Christoph Hellwig
2020-07-21 15:52 ` Matthew Wilcox
2020-07-21 16:03 ` Darrick J. Wong
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