Re: [PATCH 06/43] FS-Cache: Recruit a couple of page flags for cache management [ver #46]
From: David Howells
Date: Thu Apr 02 2009 - 13:41:23 EST
Nick Piggin <nickpiggin@xxxxxxxxxxxx> wrote:
> Well in theory I still think it would be cleanest to modify buffer to
> play more nicely with it. But maybe that ends up being harder to
> distinguish the 3 cases of attached metadata on the page. I don't know,
> you haven't posted any isofs code so either way it is inappropriate to
> use up this extra page flag here.
>
> Is isofs cache worth a page flag?
Well, isofs was something I wanted at the time.
Besides, as I said NFS uses PG_private for its own purposes, and entangling
the two wasn't the most fun I've had. Trond didn't like it either.
David
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