linux/kernel/rcu
Paul E. McKenney 0f9be8cabb rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle()
The rcu_momentary_dyntick_idle() function scans the RCU flavors, checking
that one of them still needs a quiescent state before doing an expensive
atomic operation on the ->dynticks counter.  However, this check reduces
overhead only after a rare race condition, and increases complexity.  This
commit therefore removes the scan and the mechanism enabling the scan.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-18 11:38:18 -07:00
..
Makefile rcutorture: Add RCU grace-period performance tests 2016-03-31 13:37:38 -07:00
rcu.h rcu: Semicolon inside RCU_TRACE() for rcu.h 2017-04-18 11:38:17 -07:00
rcuperf.c sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h> 2017-03-02 08:42:27 +01:00
rcutorture.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
srcu.c srcu: Check for tardy grace-period activity in cleanup_srcu_struct() 2017-04-18 11:30:58 -07:00
sync.c locking, rcu, cgroup: Avoid synchronize_sched() in __cgroup_procs_write() 2016-08-18 15:36:59 +02:00
tiny.c rcu: Semicolon inside RCU_TRACE() for Tiny RCU 2017-04-18 11:38:17 -07:00
tiny_plugin.h rcu: Semicolon inside RCU_TRACE() for Tiny RCU 2017-04-18 11:38:17 -07:00
tree.c rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() 2017-04-18 11:38:18 -07:00
tree.h rcu: Eliminate flavor scan in rcu_momentary_dyntick_idle() 2017-04-18 11:38:18 -07:00
tree_exp.h Merge branches 'doc.2017.01.15b', 'dyntick.2017.01.23a', 'fixes.2017.01.23a', 'srcu.2017.01.25a' and 'torture.2017.01.15b' into HEAD 2017-01-25 12:56:05 -08:00
tree_plugin.h sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h> 2017-03-02 08:42:34 +01:00
tree_trace.c rcu: Pull rcu_qs_ctr into rcu_dynticks structure 2017-04-18 11:38:17 -07:00
update.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h> 2017-03-02 08:42:34 +01:00