mm/page_owner: align with pageblock_nr pages

When pfn_valid(pfn) returns false, pfn should be aligned with pageblock_nr_pages other than MAX_ORDER_NR_PAGES in init_pages_in_zone, because the skipped 2M may be valid pfn, as a result, early allocated count will not be accurate. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: zhong jiang <[email protected]> Cc: Michal Hocko <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
0day-ci · Apr 7, 2017 · edfdd5d · edfdd5d
1 parent c9c5147
commit edfdd5d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/mm/page_owner.c b/mm/page_owner.c
@@ -527,7 +527,7 @@ static void init_pages_in_zone(pg_data_t *pgdat, struct zone *zone)
 	 */
 	for (; pfn < end_pfn; ) {
 		if (!pfn_valid(pfn)) {
-			pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES);
+			pfn = ALIGN(pfn + 1, pageblock_nr_pages);
 			continue;
 		}