When a page is freed and put into pcp list, get_freepage_migratetype() doesn't return MIGRATE_ISOLATE even if this pageblock is isolated. So we should use get_pageblock_migratetype() instead of mt to check whether it is isolated.
Cc: David Rientjes <[email protected]> Cc: Jiang Liu <[email protected]> Cc: Len Brown <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Minchan Kim <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Cc: Yasuaki Ishimatsu <[email protected]> Cc: Dave Hansen <[email protected]> Cc: Mel Gorman <[email protected]> Cc: Jianguo Wu <[email protected]> Signed-off-by: Wen Congyang <[email protected]> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 027afd0..e9c19d2 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -667,7 +667,7 @@ static void free_pcppages_bulk(struct zone *zone, int count, /* MIGRATE_MOVABLE list may include MIGRATE_RESERVEs */ __free_one_page(page, zone, 0, mt); trace_mm_page_pcpu_drain(page, 0, mt); - if (likely(mt != MIGRATE_ISOLATE)) { + if (likely(mt != get_pageblock_migratetype(page))) { __mod_zone_page_state(zone, NR_FREE_PAGES, 1); if (is_migrate_cma(mt)) __mod_zone_page_state(zone, NR_FREE_CMA_PAGES, 1); -- 1.8.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
