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 <[email protected]> Reviewed-by: Rik van Riel <[email protected]> Acked-by: Minchan Kim <[email protected]> Acked-by: KAMEZAWA Hiroyuki <[email protected]> Acked-by: KOSAKI Motohiro <[email protected]> Signed-off-by: Jiri Kosina <[email protected]>
kishon · Jun 28, 2012 · be7bd59 · be7bd59
1 parent 422aa27
commit be7bd59
Showing 1 changed file with 2 additions and 1 deletion.
diff --git 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)