From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: [PATCH V3 3/8] Cleancache: core ops functions and configuration
Date: Tue, 6 Jul 2010 16:51:21 -0400
Message-ID: <20100706205121.GA32627@phenom.dumpdata.com>
References: <20100621231939.GA19505@ca-server1.us.oracle.com>
 <1277223988.9782.20.camel@nimitz>
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Cc: Dan Magenheimer <dan.magenheimer@oracle.com>, chris.mason@oracle.com,
        viro@zeniv.linux.org.uk, akpm@linux-foundation.org, adilger@Sun.COM,
        tytso@mit.edu, mfasheh@suse.com, joel.becker@oracle.com,
        matthew@wil.cx, linux-btrfs@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        linux-ext4@vger.kernel.org, ocfs2-devel@oss.oracle.com,
        linux-mm@kvack.org, ngupta@vflare.org, jeremy@goop.org,
        JBeulich@novell.com, kurt.hackel@oracle.com, npiggin@suse.de,
        dave.mccracken@oracle.com, riel@redhat.com, avi@redhat.com
To: Dave Hansen <dave@sr71.net>
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On Tue, Jun 22, 2010 at 09:26:28AM -0700, Dave Hansen wrote:
> On Mon, 2010-06-21 at 16:19 -0700, Dan Magenheimer wrote:
> > --- linux-2.6.35-rc2/include/linux/cleancache.h 1969-12-31 17:00:00.000000000 -0700
> > +++ linux-2.6.35-rc2-cleancache/include/linux/cleancache.h      2010-06-21 14:45:18.000000000 -0600
> > @@ -0,0 +1,88 @@
> > +#ifndef _LINUX_CLEANCACHE_H
> > +#define _LINUX_CLEANCACHE_H
> > +
> > +#include <linux/fs.h>
> > +#include <linux/mm.h>
> > +
> > +struct cleancache_ops {
> > +       int (*init_fs)(size_t);
> > +       int (*init_shared_fs)(char *uuid, size_t);
> > +       int (*get_page)(int, ino_t, pgoff_t, struct page *);
> > +       void (*put_page)(int, ino_t, pgoff_t, struct page *);
> > +       void (*flush_page)(int, ino_t, pgoff_t);
> > +       void (*flush_inode)(int, ino_t);
> > +       void (*flush_fs)(int);
> > +};
> > + 
> 
> How would someone go about testing this code?  Is there an example
> cleancache implementation?

Dan,

Can you reference with a link or a git branch the patches that utilize
this?

And also mention that in the 0/X patch so that folks can reference your
cleancache implementation?

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