From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752123AbcJJDpP (ORCPT ); Sun, 9 Oct 2016 23:45:15 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:19835 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752021AbcJJDpO (ORCPT ); Sun, 9 Oct 2016 23:45:14 -0400 Message-ID: <57FB0C89.3040304@huawei.com> Date: Mon, 10 Oct 2016 11:35:37 +0800 From: Xishi Qiu User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:12.0) Gecko/20120428 Thunderbird/12.0.1 MIME-Version: 1.0 To: Andrew Morton , Vlastimil Babka , Mel Gorman , Joonsoo Kim , Michal Hocko , Minchan Kim , David Rientjes , Yisheng Xie CC: Linux MM , LKML Subject: [PATCH] mm: init gfp mask in kcompactd_do_work() Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.177.25.179] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We will use gfp_mask in the following path, but it's not init. kcompactd_do_work compact_zone gfpflags_to_migratetype However if not init, gfp_mask is always 0, and the result of gfpflags_to_migratetype(0) and gfpflags_to_migratetype(GFP_KERNEL) are the same, but it's a little confusion, so init it first. Signed-off-by: Xishi Qiu --- mm/compaction.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/compaction.c b/mm/compaction.c index 9affb29..4b9a9d1 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -1895,10 +1895,10 @@ static void kcompactd_do_work(pg_data_t *pgdat) struct zone *zone; struct compact_control cc = { .order = pgdat->kcompactd_max_order, + .gfp_mask = GFP_KERNEL, .classzone_idx = pgdat->kcompactd_classzone_idx, .mode = MIGRATE_SYNC_LIGHT, .ignore_skip_hint = true, - }; bool success = false; -- 1.8.3.1