[PATCH tip/core/rcu 0/10] Don not IPI offline CPUs, de-emphasize cond_resched_rcu_qs()

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

Hello!

This series provides some fixes to prevent sending IPIs to offline
CPUs and also replaces most uses of cond_resched_rcu_qs() with the new
and improved cond_resched().  There are still a few remaining uses of
cond_resched_rcu_qs() in rcutorture because the mechanisms that strengthen
cond_resched() rely on RCU making forward progress.  This series contains:

1.	Stop resched_cpu() from sending IPIs to offline CPUs.

2.	Stop switched_to_rt() from sending IPIs to offline CPUs.

3.	Move netfilter from cond_resched_rcu_qs() to cond_resched().

4.	Move mm from cond_resched_rcu_qs() to cond_resched().

5.	Move workqueue from cond_resched_rcu_qs() to cond_resched().

6.	Move trace from cond_resched_rcu_qs() to cond_resched().

7.	Move softirq from cond_resched_rcu_qs() to cond_resched().

8.	Move fs from cond_resched_rcu_qs() to cond_resched().

9.	Remove cond_resched_rcu_qs() from documentation.

10.	Improve performance by accounting for rcu_all_qs() in cond_resched().

							Thanx, Paul

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

 Documentation/RCU/Design/Data-Structures/Data-Structures.html |    3 ++-
 Documentation/RCU/Design/Requirements/Requirements.html       |    4 ++--
 Documentation/RCU/stallwarn.txt                               |   10 ++++------
 fs/file.c                                                     |    2 +-
 include/linux/rcupdate.h                                      |    2 +-
 kernel/sched/core.c                                           |    3 ++-
 kernel/sched/rt.c                                             |    2 +-
 kernel/softirq.c                                              |    2 +-
 kernel/trace/trace_benchmark.c                                |    2 +-
 kernel/workqueue.c                                            |    2 +-
 mm/mlock.c                                                    |    2 +-
 net/netfilter/nf_conntrack_core.c                             |    2 +-
 12 files changed, 18 insertions(+), 18 deletions(-)