It seems unnecessary to search pages with order < alloc_order in fallback allocation. Signed-off-by: Abel Wu <wuyun.abel@xxxxxxxxxxxxx> --- 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 e008a3df0485..0abafc2fc3e0 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2934,7 +2934,7 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype, * i.e. orders < pageblock_order. If there are no local zones free, * the zonelists will be reiterated without ALLOC_NOFRAGMENT. */ - if (alloc_flags & ALLOC_NOFRAGMENT) + if (order < pageblock_order && alloc_flags & ALLOC_NOFRAGMENT) min_order = pageblock_order; /* -- 2.31.1
