Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758913Ab2JYAwE (ORCPT ); Wed, 24 Oct 2012 20:52:04 -0400 Received: from mail-vc0-f174.google.com ([209.85.220.174]:44516 "EHLO mail-vc0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757206Ab2JYAwB (ORCPT ); Wed, 24 Oct 2012 20:52:01 -0400 From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , Peter Zijlstra , Ingo Molnar , Thomas Gleixner , Steven Rostedt , Paul Gortmaker , Tony Luck , Fenghua Yu , Benjamin Herrenschmidt , Paul Mackerras , Heiko Carstens , Martin Schwidefsky , Avi Kivity , Marcelo Tosatti , Joerg Roedel , Alexander Graf , Xiantao Zhang , Christian Borntraeger , Cornelia Huck Subject: [PATCH 0/5] cputime: Moar cleanups / enhancements v2 Date: Thu, 25 Oct 2012 02:51:48 +0200 Message-Id: <1351126313-17804-1-git-send-email-fweisbec@gmail.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1965 Lines: 52 I made some changes to the series: - Handle possible softirq interrupting idle on local_bh_enable() - Have a dedicated vtime.h header file - Do some clearer ifdeffery - Use an irqsafe vtime_account_system() on kvm. Patches 1/5 and 5/5 are something I really think we want. Patch 3/5 implicitly fixes a bug in s390. If you prefer I can just fix s390 and drop the rest of the patch that is just a micro-optimization in the kvm guest switch path. The rest of the patches is micro optimizations on the irq path. If you think these are pointless over-optimizations, I can just drop these and only keep 1/5, rebase 5/5 and extract the bug fix in s390 that resides in 3/5. Otherwise I'll send a pull request to Ingo in a week or so. If you want to test, it is pullable from: git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git cputime/cleanups-v3 Tested on powerpc and x86. Built tested on ia64. s390 doesn't build defconfig on v3.7-rc2. Frederic Weisbecker (5): vtime: Gather vtime declarations to their own header file vtime: Provide an irq safe version of vtime_account_system() kvm: Directly account vtime to system on guest switch cputime: Specialize irq vtime hooks cputime: Separate irqtime accounting from generic vtime arch/s390/kernel/vtime.c | 4 +++ include/linux/hardirq.h | 15 ++---------- include/linux/kernel_stat.h | 9 +------- include/linux/kvm_host.h | 12 +++++++++- include/linux/vtime.h | 48 +++++++++++++++++++++++++++++++++++++++++++ kernel/sched/cputime.c | 13 +++++++++- kernel/softirq.c | 6 ++-- 7 files changed, 80 insertions(+), 27 deletions(-) create mode 100644 include/linux/vtime.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/