Re: Subject: [PATCH V7 1/4] mm: frontswap: swap data structurechanges

[KAMEZAWA Hiroyuki]

On Tue, 23 Aug 2011 07:57:55 -0700
Dan Magenheimer <dan.magenheimer@xxxxxxxxxx> wrote:

> From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
> Subject: [PATCH V7 1/4] mm: frontswap: swap data structure changes
> 
> This first patch of four in the frontswap series makes available core
> swap data structures (swap_lock, swap_list and swap_info) that are
> needed by frontswap.c but we don't need to expose them to the dozens
> of files that include swap.h so we create a new swapfile.h just to
> extern-ify these.
> 
> Also add frontswap-related elements to swap_info_struct.  Frontswap_map
> points to vzalloc'ed one-bit-per-swap-page metadata that indicates
> whether the swap page is in frontswap or in the device and frontswap_pages
> counts how many pages are in frontswap.
> 
> [v7: rebase to 3.0-rc3]
> [v7: JBeulich@xxxxxxxxxx: add new swap struct elements only if config'd]
> [v6: rebase to 3.0-rc1]
> [v5: no change from v4]
> [v4: rebase to 2.6.39]
> Signed-off-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
> Reviewed-by: Konrad Wilk <konrad.wilk@xxxxxxxxxx>
> Acked-by: Jan Beulich <JBeulich@xxxxxxxxxx>
> Acked-by: Seth Jennings <sjenning@xxxxxxxxxxxxxxxxxx>
> Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
> Cc: Hugh Dickins <hughd@xxxxxxxxxx>
> Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
> Cc: Nitin Gupta <ngupta@xxxxxxxxxx>
> Cc: Matthew Wilcox <matthew@xxxxxx>
> Cc: Chris Mason <chris.mason@xxxxxxxxxx>
> Cc: Rik Riel <riel@xxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>

Hmm....could you modify mm/swapfile.c and remove 'static' in the same patch ?


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