From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kirill A. Shutemov" Subject: [PATCH, v10 0/3] Introduce timer slack controller Date: Tue, 11 Oct 2011 19:15:26 +0300 Message-ID: <1318349729-3108-1-git-send-email-kirill@shutemov.name> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Paul Menage , Li Zefan , Andrew Morton , Thomas Gleixner Cc: containers@lists.linux-foundation.org, jacob.jun.pan@linux.intel.com, Arjan van de Ven , linux-kernel@vger.kernel.org, Matt Helsley , linux-api@vger.kernel.org, Kay Sievers , lennart@poettering.net, harald@redhat.com, david@fubar.dk, greg@kroah.com, "Kirill A. Shutemov" List-Id: linux-api@vger.kernel.org From: "Kirill A. Shutemov" Changelog: v10 [7 month later, thanks to A Plumber's Wish List]: - rebased to linux-next-20111011 v9: - update documentation - minor cleanup v8: - change hiearchy rules - introduce timer_slack.effective_slack_ns - get_task_timer_slack() -> task_get_effective_timer_slack() - task_get_effective_timer_slack() splited in separate patch - implement PR_GET_EFFECTIVE_TIMERSLACK v7: - totally reworked interface and rewritten from scratch (See Documentation/cgroups/timer_slack.txt for more information) v6: - add documentation - use notifier_call_chain() instead of check hook - fix validate_change() - cleanup v5: - -EBUSY on writing to timer_slack.min_slack_ns/max_slack_ns if a child has wider min-max range v4: - hierarchy support - drop dummy_timer_slack_check() - workaround lockdep false (?) positive - allow 0 as timer slack value v3: - rework interface - s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/ v2: - fixed with CONFIG_CGROUP_TIMER_SLACK=y v1: - initial revision Kirill A. Shutemov (3): hrtimer: introduce effective timer slack hrtimer: implement PR_GET_EFFECTIVE_TIMERSLACK cgroups: introduce timer slack controller Documentation/cgroups/timer_slack.txt | 72 +++++++++++++++++++ fs/select.c | 7 +-- include/linux/cgroup_subsys.h | 7 ++ include/linux/prctl.h | 6 ++ include/linux/sched.h | 10 +++ init/Kconfig | 8 ++ kernel/Makefile | 1 + kernel/cgroup_timer_slack.c | 124 +++++++++++++++++++++++++++++++++ kernel/fork.c | 4 + kernel/futex.c | 4 +- kernel/hrtimer.c | 2 +- kernel/sys.c | 3 + 12 files changed, 240 insertions(+), 8 deletions(-) create mode 100644 Documentation/cgroups/timer_slack.txt create mode 100644 kernel/cgroup_timer_slack.c -- 1.7.6.3