From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx137.postini.com [74.125.245.137]) by kanga.kvack.org (Postfix) with SMTP id A4A1B6B004D for ; Tue, 17 Apr 2012 10:05:55 -0400 (EDT) Date: Tue, 17 Apr 2012 15:05:49 +0100 From: Mel Gorman Subject: Re: [PATCH linux-next] mm/hugetlb: fix warning in alloc_huge_page/dequeue_huge_page_vma Message-ID: <20120417140549.GJ2359@suse.de> References: <20120417122819.7438.26117.stgit@zurg> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20120417122819.7438.26117.stgit@zurg> Sender: owner-linux-mm@kvack.org List-ID: To: Konstantin Khlebnikov Cc: Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org On Tue, Apr 17, 2012 at 04:28:19PM +0400, Konstantin Khlebnikov wrote: > This patch fixes gcc warning (and bug?) introduced in linux-next commit cc9a6c877 > ("cpuset: mm: reduce large amounts of memory barrier related damage v3") > > Local variable "page" can be uninitialized if nodemask from vma policy does not > intersects with nodemask from cpuset. Even if it wouldn't happens it's better to > initialize this variable explicitly than to introduce kernel oops on weird corner case. > > mm/hugetlb.c: In function ???alloc_huge_page???: > mm/hugetlb.c:1135:5: warning: ???page??? may be used uninitialized in this function > > Signed-off-by: Konstantin Khlebnikov > Cc: Mel Gorman Acked-by: Mel Gorman -- Mel Gorman SUSE Labs -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org