linux-kernel - [PATCH, v7] Introduce timer slack controller

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Message-Id: <1299084001-3916-1-git-send-email-kirill@shutemov.name>
Date:	Wed,  2 Mar 2011 18:40:00 +0200
From:	"Kirill A. Shutsemov" <kirill@...temov.name>
To:	Paul Menage <menage@...gle.com>, Li Zefan <lizf@...fujitsu.com>
Cc:	containers@...ts.linux-foundation.org,
	jacob.jun.pan@...ux.intel.com,
	Arjan van de Ven <arjan@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Matt Helsley <matthltc@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-api@...r.kernel.org,
	"Kirill A. Shutemov" <kirill@...temov.name>
Subject: [PATCH, v7] Introduce timer slack controller

From: Kirill A. Shutemov <kirill@...temov.name>

Changelog:

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 (1):
  cgroups: introduce timer slack controller

 Documentation/cgroups/timer_slack.txt |   66 ++++++++++++++++++++
 fs/select.c                           |    7 +--
 include/linux/cgroup_subsys.h         |    6 ++
 include/linux/sched.h                 |    9 +++
 init/Kconfig                          |    8 +++
 kernel/Makefile                       |    1 +
 kernel/cgroup_timer_slack.c           |  107 +++++++++++++++++++++++++++++++++
 kernel/futex.c                        |    4 +-
 kernel/hrtimer.c                      |    2 +-
 9 files changed, 202 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/cgroups/timer_slack.txt
 create mode 100644 kernel/cgroup_timer_slack.c

-- 
1.7.4.1

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