linux-kernel - Re: [PATCH 10/28] FS-Cache: Recruit a couple of page flags for cache management [try #2]

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Message-ID: <31207.1199836284@redhat.com>
Date:	Tue, 08 Jan 2008 23:51:24 +0000
From:	David Howells <dhowells@...hat.com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
Cc:	dhowells@...hat.com, viro@....linux.org.uk, hch@...radead.org,
	Trond.Myklebust@...app.com, sds@...ho.nsa.gov,
	casey@...aufler-ca.com, linux-kernel@...r.kernel.org,
	selinux@...ho.nsa.gov, linux-security-module@...r.kernel.org
Subject: Re: [PATCH 10/28] FS-Cache: Recruit a couple of page flags for cache management [try #2]

Nick Piggin <nickpiggin@...oo.com.au> wrote:

> > Nick Piggin <nickpiggin@...oo.com.au> wrote:
> > > No. I mean call the bit PG_private2. That way non-pagecache and
> > > filesystems that don't use fscache can use it.
> >
> > The bit is called PG_owner_priv_2, and then 'subclassed' to PG_fscache,
> > much like PG_owner_priv_1 is 'subclassed' to PG_checked as was recommended.
> 
> It is not owner_priv if you're putting checks and tests into core
> kernel pagecache code for it. owner_priv means a filesystem has it
> _all_ to itself.

Okay, I'll change it if it makes you happy.  Bear in mind, though, you're
dictating instructions that conflict with those other people have dictated.

David
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