From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934471AbdKAViv (ORCPT ); Wed, 1 Nov 2017 17:38:51 -0400 Received: from out0-201.mail.aliyun.com ([140.205.0.201]:57496 "EHLO out0-201.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932685AbdKAVis (ORCPT ); Wed, 1 Nov 2017 17:38:48 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R761e4;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e02c03296;MF=yang.s@alibaba-inc.com;NM=1;PH=DS;RN=5;SR=0;TI=SMTPD_---.9ISHIIp_1509572314; From: "Yang Shi" To: mhocko@kernel.org, akpm@linux-foundation.org Cc: "Yang Shi" , , Subject: [PATCH] mm: use in_atomic() in print_vma_addr() Date: Thu, 02 Nov 2017 05:38:33 +0800 Message-Id: <1509572313-102989-1-git-send-email-yang.s@alibaba-inc.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org commit 3e51f3c4004c9b01f66da03214a3e206f5ed627b ("sched/preempt: Remove PREEMPT_ACTIVE unmasking off in_atomic()") makes in_atomic() just check the preempt count, so it is not necessary to use preempt_count() in print_vma_addr() any more. Replace preempt_count() to in_atomic() which is a generic API for checking atomic context. Signed-off-by: Yang Shi --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index a728bed..19b684e 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4460,7 +4460,7 @@ void print_vma_addr(char *prefix, unsigned long ip) * Do not print if we are in atomic * contexts (in exception stacks, etc.): */ - if (preempt_count()) + if (in_atomic()) return; down_read(&mm->mmap_sem); -- 1.8.3.1