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* [PATCH tip/core/rcu 0/26] idle-related changes
@ 2012-08-30 21:05 Paul E. McKenney
  2012-08-30 21:05 ` [PATCH tip/core/rcu 01/26] rcu: New rcu_user_enter() and rcu_user_exit() APIs Paul E. McKenney
  0 siblings, 1 reply; 73+ messages in thread
From: Paul E. McKenney @ 2012-08-30 21:05 UTC (permalink / raw)
  To: linux-kernel
  Cc: mingo, laijs, dipankar, akpm, mathieu.desnoyers, josh, niv, tglx,
	peterz, rostedt, Valdis.Kletnieks, dhowells, eric.dumazet,
	darren, fweisbec, sbw, patches

Hello!

This series handles changes to the interaction between RCU and idle,
including adaptive ticks.  Almost all of these patches are courtesy
of Frederic Weisbecker.  The patches are as follows:

1.	Allow non-idle tasks to enter dyntick-idle mode from RCU's
	perspective in order to enable adaptive ticks.
2.	Add rcu_user_enter_irq() and rcu_user_exit_irq() to enable
	switching into and out of dyntick-idle mode in interrupt
	handlers to handle wakeups.
3.	Modify RCU_FAST_NO_HZ to accommodate adaptive ticks.
4.	Add a Kconfig option to enable extended quiescent states while
	in usermode execution.
5.	Allow multiple rcu_user_enter() calls to match an rcu_user_exit().
6.	Introcude runtime control for RCU's classification of user-mode
	execution as an extended quiescent state.
7.	Update adaptive-tick state on context switch in order to handle
	task migration.
8.	On x86, notify RCU of slowpath syscall entry to and exit from
	usermode execution so that RCU can track the resulting extended
	quiescent states.
9.	On c86, notify RCU of exception-path entry to and exit from
	usermode execution so that RCU can again strack the resulting
	extended quiescent states.
10.	Exit RCU extended QS on kernel preemption after irq/exception.
11.	Exit RCU extended QS on user preemption.
12.	On x86, use the new schedule_user API on userspace preemption.
13.	On x86, exit RCU extended QS on notify resumes.
14.	Provide a new RCU_USER_QS_FORCE kconfig option that enables
	userspace RCU extended quiescent states on all CPUs for testing
	purposes.
15-26.	Fix idle-loop breakage introduced on 3.3.  This affects all
	architectures that do not implement NO_HZ.

							Thanx, Paul

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

 arch/alpha/kernel/process.c          |    3 
 b/arch/Kconfig                       |   10 +++
 b/arch/alpha/kernel/process.c        |    3 
 b/arch/alpha/kernel/smp.c            |    1 
 b/arch/cris/kernel/process.c         |    3 
 b/arch/frv/kernel/process.c          |    3 
 b/arch/h8300/kernel/process.c        |    3 
 b/arch/ia64/kernel/process.c         |    3 
 b/arch/m32r/kernel/process.c         |    3 
 b/arch/m68k/kernel/process.c         |    3 
 b/arch/mn10300/kernel/process.c      |    3 
 b/arch/parisc/kernel/process.c       |    3 
 b/arch/score/kernel/process.c        |    4 -
 b/arch/um/drivers/mconsole_kern.c    |    1 
 b/arch/x86/Kconfig                   |    1 
 b/arch/x86/include/asm/rcu.h         |   20 ++++++
 b/arch/x86/include/asm/thread_info.h |   10 ++-
 b/arch/x86/kernel/entry_64.S         |    8 +-
 b/arch/x86/kernel/ptrace.c           |    5 +
 b/arch/x86/kernel/signal.c           |    4 +
 b/arch/x86/kernel/traps.c            |   30 ++++++---
 b/arch/x86/mm/fault.c                |   13 +++
 b/arch/xtensa/kernel/process.c       |    3 
 b/include/linux/rcupdate.h           |    2 
 b/include/linux/sched.h              |    8 ++
 b/init/Kconfig                       |   10 +++
 b/kernel/rcutree.c                   |  115 ++++++++++++++++++++++++-----------
 b/kernel/rcutree.h                   |    3 
 b/kernel/rcutree_plugin.h            |   20 ++++++
 b/kernel/sched/core.c                |    1 
 include/linux/rcupdate.h             |   12 +++
 init/Kconfig                         |    8 ++
 kernel/rcutree.c                     |  111 ++++++++++++++++++++++++++++++---
 kernel/rcutree.h                     |    1 
 kernel/sched/core.c                  |    8 ++
 35 files changed, 375 insertions(+), 64 deletions(-)


^ permalink raw reply	[flat|nested] 73+ messages in thread

end of thread, other threads:[~2012-09-12 15:23 UTC | newest]

Thread overview: 73+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-08-30 21:05 [PATCH tip/core/rcu 0/26] idle-related changes Paul E. McKenney
2012-08-30 21:05 ` [PATCH tip/core/rcu 01/26] rcu: New rcu_user_enter() and rcu_user_exit() APIs Paul E. McKenney
2012-08-30 21:05   ` [PATCH tip/core/rcu 02/26] rcu: New rcu_user_enter_irq() and rcu_user_exit_irq() APIs Paul E. McKenney
2012-08-31 19:13     ` Josh Triplett
2012-08-31 19:54       ` Frederic Weisbecker
2012-08-31 21:38         ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 03/26] rcu: Make RCU_FAST_NO_HZ handle adaptive ticks Paul E. McKenney
2012-08-31 23:40     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 04/26] rcu: Settle config for userspace extended quiescent state Paul E. McKenney
2012-08-31 23:44     ` Josh Triplett
2012-09-05  0:34       ` Paul E. McKenney
2012-09-05  0:46         ` Josh Triplett
2012-09-10 21:35           ` Frederic Weisbecker
2012-08-30 21:05   ` [PATCH tip/core/rcu 05/26] rcu: Allow rcu_user_enter()/exit() to nest Paul E. McKenney
2012-08-31 23:45     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 06/26] rcu: Ignore userspace extended quiescent state by default Paul E. McKenney
2012-08-31 23:46     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 07/26] rcu: Switch task's syscall hooks on context switch Paul E. McKenney
2012-08-31 23:48     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 08/26] x86: Syscall hooks for userspace RCU extended QS Paul E. McKenney
2012-08-31 23:59     ` Josh Triplett
2012-09-10 21:30       ` Frederic Weisbecker
2012-08-30 21:05   ` [PATCH tip/core/rcu 09/26] x86: Exception " Paul E. McKenney
2012-08-31 23:51     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 10/26] rcu: Exit RCU extended QS on kernel preemption after irq/exception Paul E. McKenney
2012-08-31 23:51     ` Josh Triplett
2012-09-06 16:52     ` Peter Zijlstra
2012-09-10 20:31       ` Frederic Weisbecker
2012-08-30 21:05   ` [PATCH tip/core/rcu 11/26] rcu: Exit RCU extended QS on user preemption Paul E. McKenney
2012-08-31 23:52     ` Josh Triplett
2012-09-06 17:02     ` Peter Zijlstra
2012-09-06 17:13       ` Peter Zijlstra
2012-09-10 20:26         ` Frederic Weisbecker
2012-09-12  9:33           ` Peter Zijlstra
2012-09-12 12:06             ` Frederic Weisbecker
2012-09-12 12:41               ` Peter Zijlstra
2012-09-12 12:52                 ` Peter Zijlstra
2012-09-12 13:54                   ` Frederic Weisbecker
2012-09-12 14:09                     ` Peter Zijlstra
2012-09-12 13:52                 ` Frederic Weisbecker
2012-09-12 15:21                 ` Paul E. McKenney
2012-08-30 21:05   ` [PATCH tip/core/rcu 12/26] x86: Use the new schedule_user API on userspace preemption Paul E. McKenney
2012-08-31 23:53     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 13/26] x86: Exit RCU extended QS on notify resume Paul E. McKenney
2012-08-31 23:54     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 14/26] rcu: Userspace RCU extended QS selftest Paul E. McKenney
2012-08-31 23:54     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 15/26] alpha: Fix preemption handling in idle loop Paul E. McKenney
2012-08-31 23:55     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 16/26] alpha: Add missing RCU idle APIs on " Paul E. McKenney
2012-09-01  0:00     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 17/26] cris: " Paul E. McKenney
2012-09-01  0:01     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 18/26] frv: " Paul E. McKenney
2012-09-01  0:01     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 19/26] h8300: " Paul E. McKenney
2012-09-01  0:02     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 20/26] m32r: " Paul E. McKenney
2012-09-01  0:02     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 21/26] m68k: " Paul E. McKenney
2012-09-01  0:02     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 22/26] mn10300: " Paul E. McKenney
2012-09-01  0:03     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 23/26] parisc: " Paul E. McKenney
2012-09-01  0:03     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 24/26] score: " Paul E. McKenney
2012-09-01  0:04     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 25/26] xtensa: " Paul E. McKenney
2012-09-01  0:05     ` Josh Triplett
2012-08-30 21:05   ` [PATCH tip/core/rcu 26/26] ia64: " Paul E. McKenney
2012-09-01  0:05     ` Josh Triplett
2012-08-31 19:07   ` [PATCH tip/core/rcu 01/26] rcu: New rcu_user_enter() and rcu_user_exit() APIs Josh Triplett
2012-09-05  1:04     ` Paul E. McKenney

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