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Date:   Fri, 28 Apr 2023 14:02:46 +0200
From:   Jan Kara <>
To:     Greg KH <>
Cc:     Jan Kara <>,,
        Ted Tso <>,
Subject: Re: Pick commit 2729cfdcfa ("ext4: use ext4_journal_start/stop for
 fast commit transactions")

On Fri 28-04-23 09:32:34, Greg KH wrote:
> On Thu, Apr 27, 2023 at 06:24:59PM +0200, Jan Kara wrote:
> > Hello,
> > 
> > recently I've debugged a deadlock issue in ext4 fast commit feature in our
> > openSUSE Leap kernel. Checking with upstream I've found out the issue was
> > accidentally fixed by commit 2729cfdcfa1c ("ext4: use
> > ext4_journal_start/stop for fast commit transactions"). Can you please pick
> > up this commit into the stable tree? The problem has been there since fast
> > commit began to exist (in 5.10-rc1) so 5.10 and 5.15 stable trees need the
> > fix. Thanks!
> This commit does not apply to those branches, so how was it tested?

Hum, I've picked up the patch to our 5.14-based distro kernel and it
applied (and passed testing) without issues so I was hoping 5.15 and 5.10
would work as well. Apparently I was wrong. Sorry for the trouble.

> Can you send us backported, and tested, versions of this commit so that
> we can apply them?

Yeah, I'll look into applying the patch directly to stable branches.

Jan Kara <>

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