2006/2/5, Coywolf Qi Hunt [off-list ref]:

2006/1/20, Mel Gorman [off-list ref]:

quoted

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 <redacted>
Signed-off-by: Joel Schopp <redacted>
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

quoted

+#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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