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authorWanpeng Li <liwp@linux.vnet.ibm.com>2012-06-14 16:41:02 +0400
committerJiri Kosina <jkosina@suse.cz>2012-06-28 13:54:12 +0400
commitbe7bd59db71dfb6dc011c9880fec5a659430003a (patch)
tree04d73bb9befe49d82c3d07e955b93a0186056364 /mm
parent422aa274203469771460411ffb2f70c241770b80 (diff)
downloadlinux-be7bd59db71dfb6dc011c9880fec5a659430003a.tar.xz
mm: fix page reclaim comment error
Since there are five lists in LRU cache, the array nr in get_scan_count should be: nr[0] = anon inactive pages to scan; nr[1] = anon active pages to scan nr[2] = file inactive pages to scan; nr[3] = file active pages to scan Signed-off-by: Wanpeng Li <liwp.linux@gmail.com> Reviewed-by: Rik van Riel <riel@redhat.com> Acked-by: Minchan Kim <minchan@kernel.org> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'mm')
-rw-r--r--mm/vmscan.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 33dc256033b5..091ab8f88333 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1894,7 +1894,8 @@ static int vmscan_swappiness(struct mem_cgroup_zone *mz,
* by looking at the fraction of the pages scanned we did rotate back
* onto the active list instead of evict.
*
- * nr[0] = anon pages to scan; nr[1] = file pages to scan
+ * nr[0] = anon inactive pages to scan; nr[1] = anon active pages to scan
+ * nr[2] = file inactive pages to scan; nr[3] = file active pages to scan
*/
static void get_scan_count(struct mem_cgroup_zone *mz, struct scan_control *sc,
unsigned long *nr, int priority)