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authorMel Gorman <mel@csn.ul.ie>2009-06-16 22:32:12 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-17 02:47:35 (GMT)
commit418589663d6011de9006425b6c5721e1544fb47a (patch)
treeef37fb026d3e38191d6b5c99bc95c190fa98d0fb /mm/vmstat.c
parenta3af9c389a7f3e675313f442fdd8c247c1cdb66b (diff)
downloadlinux-418589663d6011de9006425b6c5721e1544fb47a.tar.xz
page allocator: use allocation flags as an index to the zone watermark
ALLOC_WMARK_MIN, ALLOC_WMARK_LOW and ALLOC_WMARK_HIGH determin whether pages_min, pages_low or pages_high is used as the zone watermark when allocating the pages. Two branches in the allocator hotpath determine which watermark to use. This patch uses the flags as an array index into a watermark array that is indexed with WMARK_* defines accessed via helpers. All call sites that use zone->pages_* are updated to use the helpers for accessing the values and the array offsets for setting. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 74d66db..4151107 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -714,9 +714,9 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat,
"\n spanned %lu"
"\n present %lu",
zone_page_state(zone, NR_FREE_PAGES),
- zone->pages_min,
- zone->pages_low,
- zone->pages_high,
+ min_wmark_pages(zone),
+ low_wmark_pages(zone),
+ high_wmark_pages(zone),
zone->pages_scanned,
zone->lru[LRU_ACTIVE_ANON].nr_scan,
zone->lru[LRU_INACTIVE_ANON].nr_scan,