linux-kernel - Re: [PATCH 5.15] fuse: Fix race condition in writethrough path A race

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Message-ID: <CAJfpeguCe9-hbK8-XDGhaVHT1TD8oGH6E+vXRyY3cRs1rYYJ=A@mail.gmail.com>
Date: Tue, 14 Oct 2025 18:15:26 +0200
From: Miklos Szeredi <miklos@...redi.hu>
To: lu gu <giveme.gulu@...il.com>
Cc: Brian Foster <bfoster@...hat.com>, Joanne Koong <joannelkoong@...il.com>, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Bernd Schubert <bernd@...ernd.com>
Subject: Re: [PATCH 5.15] fuse: Fix race condition in writethrough path A race

On Tue, 14 Oct 2025 at 14:43, Miklos Szeredi <miklos@...redi.hu> wrote:

> Will try the idea of marking folios writeback for the duration of the write.

Attaching a test patch, minimally tested.

Guangming, can you please test if this fixes the cache corruption?

Thanks,
Miklos

View attachment "fuse-write-through-set-writeback.patch" of type "text/x-patch" (1023 bytes)