From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx174.postini.com [74.125.245.174]) by kanga.kvack.org (Postfix) with SMTP id 2ACF56B005A for ; Wed, 27 Jun 2012 01:09:25 -0400 (EDT) Received: from ucsinet22.oracle.com (ucsinet22.oracle.com [156.151.31.94]) by rcsinet15.oracle.com (Sentrion-MTA-4.2.2/Sentrion-MTA-4.2.2) with ESMTP id q5R59NEN022333 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 27 Jun 2012 05:09:24 GMT Received: from acsmt356.oracle.com (acsmt356.oracle.com [141.146.40.156]) by ucsinet22.oracle.com (8.14.4+Sun/8.14.4) with ESMTP id q5R59MZH012939 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 27 Jun 2012 05:09:23 GMT Received: from abhmt110.oracle.com (abhmt110.oracle.com [141.146.116.62]) by acsmt356.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id q5R59MUd030515 for ; Wed, 27 Jun 2012 00:09:22 -0500 Message-ID: <4FEA9568.4030902@oracle.com> Date: Wed, 27 Jun 2012 13:08:56 +0800 From: Jeff Liu Reply-To: jeff.liu@oracle.com MIME-Version: 1.0 Subject: [PATCH] mm/memory.c: print_vma_addr() call up_read(&mm->mmap_sem) directly Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Hello, We can call up_read(&mm->mmap_sem) directly since we have already got mm via current->mm at the beginning of print_vma_addr(). Thanks, -Jeff Signed-off-by: Jie Liu --- mm/memory.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 2466d12..6e49113 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3929,7 +3929,7 @@ void print_vma_addr(char *prefix, unsigned long ip) free_page((unsigned long)buf); } } - up_read(¤t->mm->mmap_sem); + up_read(&mm->mmap_sem); } #ifdef CONFIG_PROVE_LOCKING -- 1.7.9 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org