linux-kernel - Re: [PATCH/RFC] VFS: support parallel updates in the one directory.

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Message-ID: <20220222211144.GA9541@fieldses.org>
Date:   Tue, 22 Feb 2022 16:11:44 -0500
From:   "J. Bruce Fields" <bfields@...ldses.org>
To:     NeilBrown <neilb@...e.de>
Cc:     Al Viro <viro@...iv.linux.org.uk>,
        Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
        linux-fsdevel@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
        Daire Byrne <daire@...g.com>,
        Andreas Dilger <adilger.kernel@...ger.ca>
Subject: Re: [PATCH/RFC] VFS: support parallel updates in the one directory.

On Tue, Feb 22, 2022 at 02:07:51PM -0500, bfields wrote:
> For what it's worth, I applied this to recent upstream (038101e6b2cd)
> and fed it through my usual scripts--tests all passed, but I did see
> this lockdep warning.
> 
> I'm not actually sure what was running at the time--probably just cthon.

Yeah, reproduceable just by running "cthon -b -f" over an NFS mount.

--b.