Re: [PATCH 07/11] Memory compaction core

From: Mel Gorman
Date: Tue Mar 23 2010 - 14:16:04 EST


On Tue, Mar 23, 2010 at 12:56:30PM -0500, Christoph Lameter wrote:
> On Tue, 23 Mar 2010, Mel Gorman wrote:
>
> > diff --git a/include/linux/swap.h b/include/linux/swap.h
> > index 1f59d93..cf8bba7 100644
> > --- a/include/linux/swap.h
> > +++ b/include/linux/swap.h
> > @@ -238,6 +239,11 @@ static inline void lru_cache_add_active_file(struct page *page)
> > __lru_cache_add(page, LRU_ACTIVE_FILE);
> > }
> >
> > +/* LRU Isolation modes. */
> > +#define ISOLATE_INACTIVE 0 /* Isolate inactive pages. */
> > +#define ISOLATE_ACTIVE 1 /* Isolate active pages. */
> > +#define ISOLATE_BOTH 2 /* Isolate both active and inactive pages. */
> > +
> > /* linux/mm/vmscan.c */
> > extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order,
> > gfp_t gfp_mask, nodemask_t *mask);
> > diff --git a/mm/vmscan.c b/mm/vmscan.c
> > index 79c8098..ef89600 100644
> > --- a/mm/vmscan.c
> > +++ b/mm/vmscan.c
> > @@ -839,11 +839,6 @@ keep:
> > return nr_reclaimed;
> > }
> >
> > -/* LRU Isolation modes. */
> > -#define ISOLATE_INACTIVE 0 /* Isolate inactive pages. */
> > -#define ISOLATE_ACTIVE 1 /* Isolate active pages. */
> > -#define ISOLATE_BOTH 2 /* Isolate both active and inactive pages. */
> > -
> > /*
> > * Attempt to remove the specified page from its LRU. Only take this page
> > * if it is of the appropriate PageActive status. Pages which are being
>
> Put the above in a separate patch?
>

I can if you prefer but it's so small, I didn't think it obscured the
clarity of the patch anyway. I would have somewhat expected the two
patches to be merged together before going upstream.

--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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