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Message-ID: <1077050.1649663972@warthog.procyon.org.uk>
Date: Mon, 11 Apr 2022 08:59:32 +0100
From: David Howells <dhowells@...hat.com>
To: asmadeus@...ewreck.org
Cc: dhowells@...hat.com,
Christian Schoenebeck <linux_oss@...debyte.com>,
David Kahurani <k.kahurani@...il.com>, davem@...emloft.net,
ericvh@...il.com, kuba@...nel.org, linux-kernel@...r.kernel.org,
lucho@...kov.net, netdev@...r.kernel.org,
v9fs-developer@...ts.sourceforge.net, Greg Kurz <groug@...d.org>
Subject: Re: 9p fs-cache tests/benchmark (was: 9p fscache Duplicate cookie detected)
asmadeus@...ewreck.org wrote:
> I see fscache also uses the qid version as 'auxilliary data', but I'm
> not sure what this is used for -- if it's a data version like thing then
> it will also at least invalidate the cache content all the time.
I should really have renamed "auxiliary data" to "coherency data". It's used
by direct comparison when fscache binds a cookie to a backing cache object to
work out if the content of the backing object is still valid.
David
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