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Date: Thu, 26 Feb 2026 09:20:51 +0100
From: Christian Brauner <brauner@kernel.org>
To: Jeff Layton <jlayton@kernel.org>
Cc: "Zachary M. Raines" <zachary.raines@canonical.com>, 
	Alexander Viro <viro@zeniv.linux.org.uk>, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, 
	JP Kobryn <jp.kobryn@linux.dev>
Subject: Re: PROBLEM: Duplicated entries in /proc/<pid>/mountinfo
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In-Reply-To: <5a1f3e553f47a34b1cd6c30d9ec3649919d46585.camel@kernel.org>

On Wed, Feb 25, 2026 at 11:55:07AM -0500, Jeff Layton wrote:
> On Sat, 2026-02-14 at 13:28 +0100, Christian Brauner wrote:
> > On Wed, Feb 11, 2026 at 12:59:25PM -0600, Zachary M. Raines wrote:
> > > On Thu Jan 29, 2026 at 1:04 PM CST, Zachary M. Raines wrote:
> > > > On Thu Jan 29, 2026 at 8:28 AM CST, Christian Brauner wrote:
> > > > > On Wed, Jan 28, 2026 at 08:49:12AM -0600, Zachary M. Raines wrote:
> > > > > I suspect the issue is real though. I'm appending a patch as a proposed
> > > > > fix. Can you test that and report back, please? I'm traveling tomorrow
> > > > > so might take a little.
> > > 
> > > Just following up on the patch you sent and thanks again.
> > > 
> > > > Thank you for the quick turnaround on that patch. I applied it on top
> > > > of 6.19-rc7 and after about 3 hrs I haven't seen any duplicates, in
> > > > contrast to without the patch where they appear in under 10 minutes.
> > > > 
> > > > Let me know if there's any other testing that would help.
> > > 
> > > According to my testing, your patch resolves the issue. Do you plan to
> > > submit it upstream? Please let me know if there's anything
> > > I can do to help on that front.
> > 
> > It'll go upstream early next week. :) I deferred some pull requests.
> 
> I noticed that this still hasn't gone to Linus and it's marked for
> stable in your tree. Any reason you're waiting on it?

As mentioned off-line: we got our wires crossed and this went out as a
pull-request right before you sent the question here.
TL;DR it's upstream now.