Re: [PATCH 0/4] compcache: in-memory compressed swapping v2
From: Nitin Gupta
Date: Mon Sep 14 2009 - 00:04:36 EST
On Mon, Sep 14, 2009 at 12:37 AM, Hugh Dickins
<hugh.dickins@xxxxxxxxxxxxx> wrote:
>
On 2009年9月12日, Nitin Gupta wrote:
>
> On 09/10/2009 03:32 AM, Nitin Gupta wrote:
>
> > Project home: http://compcache.googlecode.com/
>
> >
>
> > * Changelog: v2 vs initial revision
>
> > - Use 'struct page' instead of 32-bit PFNs in ramzswap driver and
>
> > xvmalloc.
>
> > This is to make these 64-bit safe.
>
> > - xvmalloc is no longer a separate module and does not export any symbols.
>
> > Its compiled directly with ramzswap block driver. This is to avoid any
>
> > last bit of confusion with any other allocator.
>
> > - set_swap_free_notify() now accepts block_device as parameter instead of
>
> > swp_entry_t (interface cleanup).
>
> > - Fix: Make sure ramzswap disksize matches usable pages in backing swap
>
> > file.
>
> > This caused initialization error in case backing swap file had
>
> > intra-page
>
> > fragmentation.
>
>
>
> Can anyone please review these patches for possible inclusion in 2.6.32?
>
>
Sorry, I certainly wouldn't be able to review them for 2.6.32 myself.
>
>
Since we're already in the merge window, and this work has not yet
>
had exposure in mmotm (preferably) or linux-next, I really doubt
>
anyone should be pushing it for 2.6.32.
>
>
I'd be quite glad to see it and experiment with it in mmotm,
>
so it could go into 2.6.33 if all okay. And I now fully accept
>
that the discard/trim situation is so hazy that you are quite
>
right to be asking for your own well-defined notifier instead.
>
>
But I'm not going to pretend to have reviewed it.
>
Thanks for the pointer Hugh -- I will try to post patches against mmotm later.
Nitin
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