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    SubjectRe: [PATCH V3 3/8] Cleancache: core ops functions and configuration
    On 07/07/2010 02:21 AM, Konrad Rzeszutek Wilk wrote:
    > 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?
    >
    >

    FYI.

    I am working on 'zcache' which uses cleancache_ops to provide page cache
    compression support. I will be posting it to LKML before end of next week.

    Thanks,
    Nitin


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