linux-kernel - [PATCH tip/core/rcu 0/7] Preview of fourth set of RCU changes for 3.3

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 3 Dec 2011 10:34:17 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	patches@...aro.org
Subject: [PATCH tip/core/rcu 0/7] Preview of fourth set of RCU changes for
 3.3

Hello!

This patchset adds to the earlier sets:

	https://lkml.org/lkml/2011/11/2/363
	https://lkml.org/lkml/2011/11/15/302
	https://lkml.org/lkml/2011/11/28/588

This fourth set adds more infrastructure for Frederic's user-mode nohz
work, additional improvements to RCU_FAST_NO_HZ, and a few bug fixes.
The patches are as follows:

1,2.	More support for user-mode nohz (courtesy of Frederic Weisbecker).
3.	Ignore RCU callback batch limits if the CPU is otherwise idle.
	This allows a CPU to more quickly clear a backlog of callbacks,
	and thus more quickly enter dyntick-idle mode.
4.	Adaptive dyntick-entry approach that more efficiently handles
	the various possible grace-period begin/end scenarios.
5.	Remove a redundant variable declaration.
6.	Allow rcutorture to avoid attempting to offline unhotpluggable CPUs.
7.	Fix RCU-lockdep splats involving RCU read-side critical sections
	that partially overlap irq-disable code sections (courtesy of
	Yong Zhang).

For a testing-only version of this patchset from git, please see the
following subject-to-rebase branch, based on 3.2-rc3:

git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/dev

							Thanx, Paul

------------------------------------------------------------------------

 b/drivers/base/cpu.c      |   12 ++++++++
 b/include/linux/cpu.h     |    1 
 b/kernel/rcutorture.c     |    4 +-
 b/kernel/rcutree.c        |   18 +++++--------
 b/kernel/rcutree.h        |    1 
 b/kernel/rcutree_plugin.h |   14 ++++++++++
 kernel/rcutree.c          |   12 ++++----
 kernel/rcutree_plugin.h   |   62 ++++++++++++++++++++++++++++++++++++----------
 8 files changed, 92 insertions(+), 32 deletions(-)

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/