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Groups > linux.kernel > #1695134

[PATCH tip/core/rcu 0/15] General fixes

From "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject [PATCH tip/core/rcu 0/15] General fixes
Date 2017-07-24 23:50 +0200
Message-ID <u6ToJ-2fn-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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Hello!

This series contains general fixes:

1.	Make cond_resched() provide RCU quiescent state, which finally
	avoids degrading performance.

2.	Use timer as backstop for NOCB deferred wakeups.

3.	Simplify RCU Kconfig by driving TASKS_RCU directly off of PREEMPT.

4.	Create reasonable API for do_exit() TASKS_RCU processing.

5.	Add TPS() to event-traced strings.

6.	Move rcu.h to new trivial-function style.

7.	Add event tracing to ->gp_tasks update at GP start.

8.	Add idle swait variants which don't contribute to load average,
	courtesy of Luis R. Rodriguez.

9.	Use idle versions of swait to make idle-hack clear, courtesy of
	Luis R. Rodriguez.

10.	Add TPS() protection for _rcu_barrier_trace strings.

11.	Set disable_rcu_irq_enter on rcu_eqs_exit(), courtesy of
	Masami Hiramatsu.

12.	Add assertions verifying blocked-tasks list.

13.	Make rcu_idle_enter() rely on callers disabling irqs, courtesy
	of Peter Zijlstra.

14.	Add warning to rcu_idle_enter() for irqs enabled.

15.	Remove exports from rcu_idle_exit() and rcu_idle_enter().

							Thanx, Paul

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

 include/linux/rcupdate.h                                    |   13 
 include/linux/sched.h                                       |    8 
 include/linux/swait.h                                       |   55 +++
 kernel/exit.c                                               |    7 
 kernel/rcu/Kconfig                                          |    3 
 kernel/rcu/rcu.h                                            |  128 +------
 kernel/rcu/rcutorture.c                                     |   17 
 kernel/rcu/tree.c                                           |   75 +---
 kernel/rcu/tree.h                                           |    2 
 kernel/rcu/tree_plugin.h                                    |  211 +++++++-----
 kernel/rcu/update.c                                         |   18 -
 kernel/sched/core.c                                         |    1 
 tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt |    2 
 13 files changed, 276 insertions(+), 264 deletions(-)

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[PATCH tip/core/rcu 0/15] General fixes "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 04/15] rcu: Create reasonable API for do_exit() TASKS_RCU processing "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 09/15] rcu: use idle versions of swait to make idle-hack clear "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB deferred wakeups "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
    Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups Steven Rostedt <rostedt@goodmis.org> - 2017-07-25 20:20 +0200
      Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-25 21:20 +0200
        Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups Steven Rostedt <rostedt@goodmis.org> - 2017-07-26 00:20 +0200
          Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-26 02:10 +0200
            Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups Steven Rostedt <rostedt@goodmis.org> - 2017-07-26 23:20 +0200
              Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-26 23:50 +0200
                Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups Steven Rostedt <rostedt@goodmis.org> - 2017-07-27 01:10 +0200
                Re: [PATCH tip/core/rcu 02/15] rcu: Use timer as backstop for NOCB  deferred wakeups "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-27 19:40 +0200
  [PATCH tip/core/rcu 10/15] rcu: Add TPS() protection for _rcu_barrier_trace strings "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
    Re: [PATCH tip/core/rcu 10/15] rcu: Add TPS() protection for  _rcu_barrier_trace strings Steven Rostedt <rostedt@goodmis.org> - 2017-07-28 03:50 +0200
  [PATCH tip/core/rcu 14/15] rcu: Add warning to rcu_idle_enter() for irqs enabled "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 01/15] sched,rcu: Make cond_resched() provide RCU quiescent state "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 08/15] swait: add idle variants which don't contribute to load average "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 15/15] rcu: Remove exports from rcu_idle_exit() and rcu_idle_enter() "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 03/15] rcu: Drive TASKS_RCU directly off of PREEMPT "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
    Re: [PATCH tip/core/rcu 03/15] rcu: Drive TASKS_RCU directly off of  PREEMPT Steven Rostedt <rostedt@goodmis.org> - 2017-07-25 20:20 +0200
      Re: [PATCH tip/core/rcu 03/15] rcu: Drive TASKS_RCU directly off of  PREEMPT "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-25 21:20 +0200
  [PATCH tip/core/rcu 12/15] rcu: Add assertions verifying blocked-tasks list "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
  [PATCH tip/core/rcu 05/15] rcu: Add TPS() to event-traced strings "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200
    Re: [PATCH tip/core/rcu 05/15] rcu: Add TPS() to event-traced  strings Steven Rostedt <rostedt@goodmis.org> - 2017-07-28 03:40 +0200
  [PATCH tip/core/rcu 06/15] rcu: Move rcu.h to new trivial-function style "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2017-07-24 23:50 +0200

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