Re: [PATCH 2/4] Split the free lists into kernel and user parts

[Coywolf Qi Hunt]

2006/2/5, Coywolf Qi Hunt <coywolf@xxxxxxxxx>:
> 2006/1/20, Mel Gorman <mel@xxxxxxxxx>:
> >
> > This patch adds the core of the anti-fragmentation strategy. It works by
> > grouping related allocation types together. The idea is that large groups of
> > pages that may be reclaimed are placed near each other. The zone->free_area
> > list is broken into RCLM_TYPES number of lists.
> >
> > Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
> > Signed-off-by: Joel Schopp <jschopp@xxxxxxxxxxxxxx>
> > diff -rup -X /usr/src/patchset-0.5/bin//dontdiff linux-2.6.16-rc1-mm1-001_antifrag_flags/include/linux/mmzone.h linux-2.6.16-rc1-mm1-002_fragcore/include/linux/mmzone.h
> > --- linux-2.6.16-rc1-mm1-001_antifrag_flags/include/linux/mmzone.h      2006-01-19 11:21:59.000000000 +0000
> > +++ linux-2.6.16-rc1-mm1-002_fragcore/include/linux/mmzone.h    2006-01-19 21:51:05.000000000 +0000
> > @@ -22,8 +22,16 @@
> >  #define MAX_ORDER CONFIG_FORCE_MAX_ZONEORDER
> >  #endif
> >
> > +#define RCLM_NORCLM 0
>
> better be RCLM_NORMAL

err, RCLM_NONRCLM, or RCLM_NONE

>
> > +#define RCLM_EASY   1
> > +#define RCLM_TYPES  2
> > +
> > +#define for_each_rclmtype_order(type, order) \
> > +       for (order = 0; order < MAX_ORDER; order++) \
> > +               for (type = 0; type < RCLM_TYPES; type++)
> > +
> >  struct free_area {
> > -       struct list_head        free_list;
> > +       struct list_head        free_list[RCLM_TYPES];
> >         unsigned long           nr_free;
> >  };

--
Coywolf Qi Hunt
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