linux-kernel - Re: [QUESTION] inconsistent use of smp

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Message-ID: <1977686.1733482274@warthog.procyon.org.uk>
Date: Fri, 06 Dec 2024 10:51:14 +0000
From: David Howells <dhowells@...hat.com>
To: Zilin Guan <zilin@....edu.cn>
Cc: dhowells@...hat.com, mjguzik@...il.com, jlayton@...nel.org,
    linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
    netfs@...ts.linux.dev, xujianhao01@...il.com
Subject: Re: [QUESTION] inconsistent use of smp_mb()

Zilin Guan <zilin@....edu.cn> wrote:

> Since the code does not need the fence, should I send a patch to 
> remove it? Commit 2df8654 introduced this fence during the transition 
> to a new writeback implementation. However, the author added this fence 
> as part of the changes and did not intend to address a specific CPU 
> reordering issue.

Sure.

Thanks,
David