From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:45420 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752107AbbGaTiJ (ORCPT ); Fri, 31 Jul 2015 15:38:09 -0400 Subject: Patch "perf bench numa: Fix to show proper convergence stats" has been added to the 4.1-stable tree To: srikar@linux.vnet.ibm.com, acme@redhat.com, gregkh@linuxfoundation.org, jolsa@kernel.org, masami.hiramatsu.pt@hitachi.com, mingo@kernel.org, namhyung@kernel.org, vlee@twitter.com Cc: , From: Date: Fri, 31 Jul 2015 12:38:06 -0700 Message-ID: <14383714861061@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled perf bench numa: Fix to show proper convergence stats to the 4.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: perf-bench-numa-fix-to-show-proper-convergence-stats.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 2b42b09b88c831ba4da2d669581dde371c38c2af Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Wed, 24 Jun 2015 16:40:04 +0530 Subject: perf bench numa: Fix to show proper convergence stats From: Srikar Dronamraju commit 2b42b09b88c831ba4da2d669581dde371c38c2af upstream. With commit: e1e455f4f4d3 (perf tools: Work around lack of sched_getcpu in glibc < 2.6), perf_bench numa mem with -c or -m option is not able to correctly calculate convergence. With the above commit, sched_getcpu always seems to return -1. The intention of commit e1e455f was to add a sched_getcpu in glibc < 2.6. Hence keep the sched_getcpu definition under an ifdef. This regression happened occurred between v4.0 and v4.1 Signed-off-by: Srikar Dronamraju Acked-by: Ingo Molnar Cc: Jiri Olsa Cc: Masami Hiramatsu Cc: Namhyung Kim Cc: Vinson Lee Fixes: e1e455f4f4d3 ("perf tools: Work around lack of sched_getcpu in glibc < 2.6") Link: http://lkml.kernel.org/r/20150624111004.GA5220@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/cloexec.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/tools/perf/util/cloexec.c +++ b/tools/perf/util/cloexec.c @@ -7,11 +7,15 @@ static unsigned long flag = PERF_FLAG_FD_CLOEXEC; +#ifdef __GLIBC_PREREQ +#if !__GLIBC_PREREQ(2, 6) int __weak sched_getcpu(void) { errno = ENOSYS; return -1; } +#endif +#endif static int perf_flag_probe(void) { Patches currently in stable-queue which might be from srikar@linux.vnet.ibm.com are queue-4.1/perf-bench-numa-fix-to-show-proper-convergence-stats.patch