linux-kernel - Re: [PATCH] afs: Fix deadlock between writeback and truncate

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Message-ID: <4013288.1602082775@warthog.procyon.org.uk>
Date:   Wed, 07 Oct 2020 15:59:35 +0100
From:   David Howells <dhowells@...hat.com>
To:     torvalds@...ux-foundation.org
Cc:     dhowells@...hat.com, linux-afs@...ts.infradead.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] afs: Fix deadlock between writeback and truncate

David Howells <dhowells@...hat.com> wrote:

>  (1) Use the vnode validate_lock to mediate access between afs_setattr()
>      and afs_writepages():

Hmmm...  I wonder if the problem can occur between afs_setattr() and
afs_writepage() too.

David