From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933185Ab3DGJd2 (ORCPT ); Sun, 7 Apr 2013 05:33:28 -0400 Received: from mail-pa0-f67.google.com ([209.85.220.67]:58165 "EHLO mail-pa0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932947Ab3DGJd1 (ORCPT ); Sun, 7 Apr 2013 05:33:27 -0400 From: k80c To: Andrew Morton , Michel Lespinasse , Rik van Riel , Al Viro , Ingo Molnar Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, k80c Subject: [PATCH 1/1] mmap.c: find_vma: eliminate initial if(mm) check Date: Sun, 7 Apr 2013 14:48:12 +0530 Message-Id: <1365326292-2761-1-git-send-email-k80ck80c@gmail.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As per commit 841e31e5cc6219d62054788faa289b6ed682d068, we dont really need this if(mm) check anymore. A WARN_ON_ONCE was added just for safety, but there have been no bug reports about this so far. Removing this if(mm) check. Signed-off-by: k80c --- mm/mmap.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-) diff --git a/mm/mmap.c b/mm/mmap.c index 0db0de1..b2c363f 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1935,9 +1935,6 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr) { struct vm_area_struct *vma = NULL; - if (WARN_ON_ONCE(!mm)) /* Remove this in linux-3.6 */ - return NULL; - /* Check the cache first. */ /* (Cache hit rate is typically around 35%.) */ vma = ACCESS_ONCE(mm->mmap_cache); -- 1.7.5.4