From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753542Ab2GQGlU (ORCPT ); Tue, 17 Jul 2012 02:41:20 -0400 Received: from e31.co.us.ibm.com ([32.97.110.149]:41219 "EHLO e31.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752417Ab2GQGkR (ORCPT ); Tue, 17 Jul 2012 02:40:17 -0400 From: John Stultz To: stable@vger.kernel.org Cc: John Stultz , Prarit Bhargava , Thomas Gleixner , Linux Kernel Subject: [PATCH 0/7] 3.4-stable: Fix for leapsecond caused hrtimer/futex issue Date: Tue, 17 Jul 2012 02:39:49 -0400 Message-Id: <1342507196-54327-1-git-send-email-johnstul@us.ibm.com> X-Mailer: git-send-email 1.7.9.5 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12071706-7282-0000-0000-00000AFC5284 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Here is backport of the leapsecond fixes to 3.4-stable. These are very straight forward, and backported to 3.4.x with no collisions or changes. This patchset resolve the early hrtimer/futex expiration issue widely seen after the June 30th leapsecond. I've booted and tested this patchset on two boxes and run through a number of leapsecond related stress tests. However, additional testing and review would be appreciated. The original commits backported in this set are: f55a6faa384304c89cfef162768e88374d3312cb hrtimer: Provide clock_was_set_delayed() 4873fa070ae84a4115f0b3c9dfabc224f1bc7c51 timekeeping: Fix leapsecond triggered load spike issue 5b9fe759a678e05be4937ddf03d50e950207c1c0 timekeeping: Maintain ktime_t based offsets for hrtimers 196951e91262fccda81147d2bcf7fdab08668b40 hrtimers: Move lock held region in hrtimer_interrupt() f6c06abfb3972ad4914cef57d8348fcb2932bc3b timekeeping: Provide hrtimer update function 5baefd6d84163443215f4a99f6a20f054ef11236 hrtimer: Update hrtimer base offsets each hrtimer_interrupt 3e997130bd2e8c6f5aaa49d6e3161d4d29b43ab0 timekeeping: Add missing update call in timekeeping_resume() I've already done backports to all the stable kernels to 2.6.32, and will be sending them out shortly. Please let me know if you have any comments or feedback. thanks -john Cc: Prarit Bhargava Cc: Thomas Gleixner Cc: Linux Kernel John Stultz (3): 3.4.x: hrtimer: Provide clock_was_set_delayed() 3.4.x: timekeeping: Fix leapsecond triggered load spike issue 3.4.x: hrtimer: Update hrtimer base offsets each hrtimer_interrupt Thomas Gleixner (4): 3.4.x: timekeeping: Maintain ktime_t based offsets for hrtimers 3.4.x: hrtimers: Move lock held region in hrtimer_interrupt() 3.4.x: timekeeping: Provide hrtimer update function 3.4.x: timekeeping: Add missing update call in timekeeping_resume() include/linux/hrtimer.h | 10 ++++++- kernel/hrtimer.c | 53 +++++++++++++++++++++++++------------ kernel/time/timekeeping.c | 64 +++++++++++++++++++++++++++++++++++++++++++-- 3 files changed, 108 insertions(+), 19 deletions(-) -- 1.7.9.5