linux/kernel/rcu
Sebastian Andrzej Siewior 7c6094db59 rcu: update: Make RCU_EXPEDITE_BOOT be the default
RCU_EXPEDITE_BOOT should speed up the boot process by enforcing
synchronize_rcu_expedited() instead of synchronize_rcu() during the boot
process. There should be no reason why one does not want this and there
is no need worry about real time latency at this point.
Therefore make it default.

Note that users wishing to avoid expediting entirely, for example when
bringing up new hardware possibly having flaky IPIs, can use the
rcu_normal boot parameter to override boot-time expediting.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[ paulmck: Reworded commit log. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2017-01-16 16:56:39 -08:00
..
Makefile rcutorture: Add RCU grace-period performance tests 2016-03-31 13:37:38 -07:00
rcu.h rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
rcuperf.c rcuperf: Consistently insert space between flag and message 2016-08-22 10:06:16 -07:00
rcutorture.c torture: Trace long read-side delays 2016-11-14 10:46:30 -08:00
srcu.c rcu: Add rcu_normal kernel parameter to suppress expediting 2015-12-04 12:26:53 -08:00
sync.c locking, rcu, cgroup: Avoid synchronize_sched() in __cgroup_procs_write() 2016-08-18 15:36:59 +02:00
tiny_plugin.h rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
tiny.c rcu: Remove cond_resched() from Tiny synchronize_sched() 2017-01-14 21:22:20 -08:00
tree_exp.h rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
tree_plugin.h rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
tree_trace.c rcu: Drive expedited grace periods from workqueue 2016-08-22 09:30:25 -07:00
tree.c rcu: Narrow early boot window of illegal synchronous grace periods 2017-01-14 21:23:48 -08:00
tree.h rcu: Make expedited grace periods recheck dyntick idle state 2016-11-14 10:46:31 -08:00
update.c rcu: update: Make RCU_EXPEDITE_BOOT be the default 2017-01-16 16:56:39 -08:00