linux-stable/kernel/rcu
Paul E. McKenney f60d231a87 srcu: Crude control of expedited grace periods
SRCU's implementation of expedited grace periods has always assumed
that the SRCU instance is idle when the expedited request arrives.
This commit improves this a bit by maintaining a count of the number
of outstanding expedited requests, thus allowing prior non-expedited
grace periods accommodate these requests by shifting to expedited mode.
However, any non-expedited wait already in progress will still wait for
the full duration.

Improved control of expedited grace periods is planned, but one step
at a time.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
2017-04-18 11:38:22 -07:00
..
Makefile rcutorture: Add RCU grace-period performance tests 2016-03-31 13:37:38 -07:00
rcu.h srcu: Merge ->srcu_state into ->srcu_gp_seq 2017-04-18 11:38:22 -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: Crude control of expedited grace periods 2017-04-18 11:38:22 -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 srcu: Allow SRCU to access rcu_scheduler_active 2017-04-18 11:38:18 -07:00
tree.c srcu: Make num_rcu_lvl[] array be external 2017-04-18 11:38:21 -07:00
tree.h srcu: Move rcu_node traversal macros to rcu.h 2017-04-18 11:38:21 -07:00
tree_exp.h srcu: Improve rcu_seq grace-period-counter abstraction 2017-04-18 11:38:21 -07:00
tree_plugin.h srcu: Abstract multi-tail callback list handling 2017-04-18 11:38:18 -07:00
tree_trace.c srcu: Move rcu_init_levelspread() to rcu_tree_node.h 2017-04-18 11:38:20 -07:00
update.c srcu: Allow SRCU to access rcu_scheduler_active 2017-04-18 11:38:18 -07:00