Received-SPF: pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 21 Jan 2020 14:01:12 -0800
From:   Matthew Wilcox <willy@infradead.org>
To:     "Darrick J. Wong" <darrick.wong@oracle.com>
Cc:     Amir Goldstein <amir73il@gmail.com>,
        Qu Wenruo <quwenruo.btrfs@gmx.com>,
        Steve French <smfrench@gmail.com>,
        lsf-pc@lists.linux-foundation.org,
        xfs <xfs@e29208.dscx.akamaiedge.net>,
        linux-btrfs <linux-btrfs@vger.kernel.org>,
        linux-fsdevel <linux-fsdevel@vger.kernel.org>,
        linux-ext4 <linux-ext4@vger.kernel.org>,
        ocfs2-devel@oss.oracle.com
Subject: Re: [Lsf-pc] [LFS/MM TOPIC] fs reflink issues, fs online
 scrub/check, etc
Message-ID: <20200121220112.GB14467@bombadil.infradead.org>
References: <20160210191715.GB6339@birch.djwong.org>
 <20160210191848.GC6346@birch.djwong.org>
 <CAH2r5mtM2nCicTKGFAjYtOG92TKKQdTbZxaD-_-RsWYL=Tn2Nw@mail.gmail.com>
 <0089aff3-c4d3-214e-30d7-012abf70623a@gmx.com>
 <CAOQ4uxjd-YWe5uHqfSW9iSdw-hQyFCwo84cK8ebJVJSY_vda3Q@mail.gmail.com>
 <20200121161840.GA8236@magnolia>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20200121161840.GA8236@magnolia>
Sender: linux-ext4-owner@vger.kernel.org
Precedence: bulk

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@gmx.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.