linux-kernel - Re: [PATCH v8 00/17] gfs2: Fix mmap + page fault deadlocks

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Date:   Tue, 19 Oct 2021 11:00:45 -0500
From:   Bob Peterson <rpeterso@...hat.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Andreas Gruenbacher <agruenba@...hat.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Paul Mackerras <paulus@...abs.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Christoph Hellwig <hch@...radead.org>,
        "Darrick J. Wong" <djwong@...nel.org>, Jan Kara <jack@...e.cz>,
        Matthew Wilcox <willy@...radead.org>,
        cluster-devel <cluster-devel@...hat.com>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ocfs2-devel@....oracle.com, kvm-ppc@...r.kernel.org,
        linux-btrfs <linux-btrfs@...r.kernel.org>
Subject: Re: [PATCH v8 00/17] gfs2: Fix mmap + page fault deadlocks

On 10/19/21 10:40 AM, Linus Torvalds wrote:
> On Tue, Oct 19, 2021 at 3:42 AM Andreas Gruenbacher <agruenba@...hat.com> wrote:
>>
>>  From my point of view, the following questions remain:
>>
>>   * I hope these patches will be merged for v5.16, but what process
>>     should I follow for that?  The patch queue contains mm and iomap
>>     changes, so a pull request from the gfs2 tree would be unusual.
> 
> Oh, I'd much rather get these as one pull request from the author and
> from the person that actually ended up testing this.

Hi Linus,

FWIW, I've been working with Andreas on this and have tested it quite
extensively, although only with gfs2. I've tested it with numerous
scenarios, both stand-alone (xfstests as well as several other test
programs I have in my collection) and in a cluster with some very heavy
duty cluster coherency tests. My testing is nearly complete, but not
quite.

Regards,

Bob Peterson
GFS2 File System