From: zhong jiang <zhongjiang@xxxxxxxxxx> Subject: 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/1468938136-24228-1-git-send-email-zhongjiang@xxxxxxxxxx Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_owner.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN mm/page_owner.c~mm-page_owner-align-with-pageblock_nr-pages mm/page_owner.c --- a/mm/page_owner.c~mm-page_owner-align-with-pageblock_nr-pages +++ a/mm/page_owner.c @@ -544,7 +544,7 @@ static void init_pages_in_zone(pg_data_t */ for (; pfn < end_pfn; ) { if (!pfn_valid(pfn)) { - pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); + pfn = ALIGN(pfn + 1, pageblock_nr_pages); continue; } _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
