From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4ED04C33CB1 for ; Wed, 15 Jan 2020 06:09:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2BC1824671 for ; Wed, 15 Jan 2020 06:09:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726220AbgAOGJi (ORCPT ); Wed, 15 Jan 2020 01:09:38 -0500 Received: from out30-43.freemail.mail.aliyun.com ([115.124.30.43]:52727 "EHLO out30-43.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725962AbgAOGJi (ORCPT ); Wed, 15 Jan 2020 01:09:38 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R121e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01f04446;MF=yang.shi@linux.alibaba.com;NM=1;PH=DS;RN=4;SR=0;TI=SMTPD_---0TnmuvRl_1579068565; Received: from localhost(mailfrom:yang.shi@linux.alibaba.com fp:SMTPD_---0TnmuvRl_1579068565) by smtp.aliyun-inc.com(127.0.0.1); Wed, 15 Jan 2020 14:09:35 +0800 From: Yang Shi To: akpm@linux-foundation.org Cc: yang.shi@linux.alibaba.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH] mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk() Date: Wed, 15 Jan 2020 14:09:25 +0800 Message-Id: <1579068565-110432-1-git-send-email-yang.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The VM_BUG_ON() is already used by queue_pages_test_walk(), it sounds better to dump more debug information by using VM_BUG_ON_VMA() to help debugging. Signed-off-by: Yang Shi --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 067cf7d..801d45d 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -621,7 +621,7 @@ static int queue_pages_test_walk(unsigned long start, unsigned long end, unsigned long flags = qp->flags; /* range check first */ - VM_BUG_ON((vma->vm_start > start) || (vma->vm_end < end)); + VM_BUG_ON_VMA((vma->vm_start > start) || (vma->vm_end < end), vma); if (!qp->first) { qp->first = vma; -- 1.8.3.1