linux-ext4 - Re: [Lsf-pc] [LFS/MM TOPIC] fs reflink issues, fs online scrub/check, etc

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Date:   Tue, 21 Jan 2020 14:01:12 -0800
From:   Matthew Wilcox <willy@...radead.org>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     Amir Goldstein <amir73il@...il.com>,
        Qu Wenruo <quwenruo.btrfs@....com>,
        Steve French <smfrench@...il.com>,
        lsf-pc@...ts.linux-foundation.org,
        xfs <xfs@...208.dscx.akamaiedge.net>,
        linux-btrfs <linux-btrfs@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        linux-ext4 <linux-ext4@...r.kernel.org>,
        ocfs2-devel@....oracle.com
Subject: Re: [Lsf-pc] [LFS/MM TOPIC] fs reflink issues, fs online
 scrub/check, etc

On Tue, Jan 21, 2020 at 08:18:40AM -0800, Darrick J. Wong wrote:
> On Tue, Jan 21, 2020 at 09:35:22AM +0200, Amir Goldstein wrote:
> > On Tue, Jan 21, 2020 at 3:19 AM Qu Wenruo <quwenruo.btrfs@....com> wrote:
> > >
> > > Didn't see the original mail, so reply here.
> > 
> > Heh! Original email was from 2016, but most of Darrick's wish list is
> > still relevant in 2020 :)
> 
> Grumble grumble stable behavior of clonerange/deduperange ioctls across
> filesystems grumble grumble.
> 
> > I for one would be very interested in getting an update on the
> > progress of pagecache
> > page sharing if there is anyone working on it.
> 
> Me too.  I guess it's the 21st, I should really send in a proposal for
> *this year's* LSFMMBPFLOLBBQ.

I still have Strong Opinions on how pagecache page sharing should be done
... and half a dozen more important projects ahead of it in my queue.
So I have no update on this.