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From:   David Howells <dhowells@redhat.com>
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To:     Chris Chilvers <chilversc@gmail.com>
Cc:     dhowells@redhat.com, linux-nfs@vger.kernel.org,
        linux-cachefs@redhat.com, brennandoyle@google.com,
        Benjamin Maynard <benmaynard@google.com>
Subject: Re: [Linux-cachefs] [BUG] fscache writing but not reading
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Date:   Fri, 19 May 2023 10:40:12 +0100
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Chris Chilvers <chilversc@gmail.com> wrote:

> While testing the fscache performance fixes [1] that were merged into 6.=
4-rc1
> it appears that the caching no longer works. The client will write to th=
e cache
> but never reads.

Can you try reading from afs?  You would need to enable CONFIG_AFS_FS in y=
our
kernel if it's not already set.

Install kafs-client and do:

	systemctl enable afs.mount
	md5sum /afs/openafs.org/software/openafs/1.9.1/openafs-1.9.1-doc.tar.bz2
	cat /proc/fs/fscache/stats
	umount /afs/openafs.org
	md5sum /afs/openafs.org/software/openafs/1.9.1/openafs-1.9.1-doc.tar.bz2
	cat /proc/fs/fscache/stats

David