From patchwork Tue May 7 13:38:48 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luis Henriques X-Patchwork-Id: 242281 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from huckleberry.canonical.com (huckleberry.canonical.com [91.189.94.19]) by ozlabs.org (Postfix) with ESMTP id 655202C012F for ; Tue, 7 May 2013 23:45:22 +1000 (EST) Received: from localhost ([127.0.0.1] helo=huckleberry.canonical.com) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1UZiCh-0005NW-AW; Tue, 07 May 2013 13:45:15 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by huckleberry.canonical.com with esmtp (Exim 4.76) (envelope-from ) id 1UZi9S-0003Rt-Ts for kernel-team@lists.ubuntu.com; Tue, 07 May 2013 13:41:54 +0000 Received: from bl16-161-151.dsl.telepac.pt ([188.81.161.151] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1UZi9S-0000Tv-DG; Tue, 07 May 2013 13:41:54 +0000 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Subject: [PATCH 082/118] tracing: Fix off-by-one on allocating stat->pages Date: Tue, 7 May 2013 14:38:48 +0100 Message-Id: <1367933964-1564-83-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1367933964-1564-1-git-send-email-luis.henriques@canonical.com> References: <1367933964-1564-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.5 Cc: Frederic Weisbecker , Namhyung Kim , Steven Rostedt , Namhyung Kim X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.14 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: kernel-team-bounces@lists.ubuntu.com Sender: kernel-team-bounces@lists.ubuntu.com 3.5.7.12 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Namhyung Kim commit 39e30cd1537937d3c00ef87e865324e981434e5b upstream. The first page was allocated separately, so no need to start from 0. Link: http://lkml.kernel.org/r/1364820385-32027-2-git-send-email-namhyung@kernel.org Cc: Frederic Weisbecker Cc: Namhyung Kim Signed-off-by: Namhyung Kim Signed-off-by: Steven Rostedt Signed-off-by: Luis Henriques --- kernel/trace/ftrace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 38353bf..80b2000 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -624,7 +624,7 @@ int ftrace_profile_pages_init(struct ftrace_profile_stat *stat) pages = DIV_ROUND_UP(functions, PROFILES_PER_PAGE); - for (i = 0; i < pages; i++) { + for (i = 1; i < pages; i++) { pg->next = (void *)get_zeroed_page(GFP_KERNEL); if (!pg->next) goto out_free;