From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753384AbZGXQMh (ORCPT ); Fri, 24 Jul 2009 12:12:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752002AbZGXQMf (ORCPT ); Fri, 24 Jul 2009 12:12:35 -0400 Received: from cam-admin0.cambridge.arm.com ([193.131.176.58]:51187 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753207AbZGXQMc (ORCPT ); Fri, 24 Jul 2009 12:12:32 -0400 Subject: [PATCH 5/8] kmemleak: Do not report alloc_bootmem blocks as leaks To: linux-kernel@vger.kernel.org From: Catalin Marinas Cc: Pekka Enberg Date: Fri, 24 Jul 2009 17:12:29 +0100 Message-ID: <20090724161229.5752.74206.stgit@pc1117.cambridge.arm.com> In-Reply-To: <20090724161026.5752.52503.stgit@pc1117.cambridge.arm.com> References: <20090724161026.5752.52503.stgit@pc1117.cambridge.arm.com> User-Agent: StGit/0.15-rc1-9-gd8846 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 24 Jul 2009 16:12:30.0158 (UTC) FILETIME=[8B53C6E0:01CA0C79] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch sets the min_count for alloc_bootmem objects to 0 so that they are never reported as leaks. This is because many of these blocks are only referred via the physical address which is not looked up by kmemleak. Signed-off-by: Catalin Marinas Cc: Pekka Enberg --- mm/bootmem.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/mm/bootmem.c b/mm/bootmem.c index 701740c..555d5d2 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -521,7 +521,11 @@ find_block: region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) + start_off); memset(region, 0, size); - kmemleak_alloc(region, size, 1, 0); + /* + * The min_count is set to 0 so that bootmem allocated blocks + * are never reported as leaks. + */ + kmemleak_alloc(region, size, 0, 0); return region; }