From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753672Ab0CZBxQ (ORCPT ); Thu, 25 Mar 2010 21:53:16 -0400 Received: from mail-px0-f194.google.com ([209.85.216.194]:39839 "EHLO mail-px0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753529Ab0CZBwy (ORCPT ); Thu, 25 Mar 2010 21:52:54 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; b=Q7CyLBEgKcmkdnHsDxPAD777EntfV6uTOmDVjdFlrq4xol8BIjHzXkwGUzISrCfEZ5 DyDPATU2LSIPEA7VBrxrZ/ydL/lFdDTqAPKXUoytBlb5g5hwYdicGzWOdGAm22F2WUMs QJhAjCdTISbwFrsQUcb1ofbmTyXoytrl+XceA= From: Frederic Weisbecker To: Ingo Molnar Cc: LKML , Frederic Weisbecker , Peter Zijlstra , Stephane Eranian , Arnaldo Carvalho de Melo , Paul Mackerras , Ingo Molnar Subject: [PATCH 1/7] perf: Drop the frame reliablity check Date: Fri, 26 Mar 2010 02:52:36 +0100 Message-Id: <1269568362-13690-2-git-send-regression-fweisbec@gmail.com> X-Mailer: git-send-email 1.6.2.3 In-Reply-To: <1269568362-13690-1-git-send-regression-fweisbec@gmail.com> References: <1269568362-13690-1-git-send-regression-fweisbec@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It is useless now that we have a pure stack frame walker, as given addr are always reliable. Signed-off-by: Frederic Weisbecker Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Arnaldo Carvalho de Melo Cc: Paul Mackerras Cc: Ingo Molnar --- arch/x86/kernel/cpu/perf_event.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index f571f51..9bc6550 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -1597,8 +1597,7 @@ static void backtrace_address(void *data, unsigned long addr, int reliable) { struct perf_callchain_entry *entry = data; - if (reliable) - callchain_store(entry, addr); + callchain_store(entry, addr); } static const struct stacktrace_ops backtrace_ops = { -- 1.6.2.3