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| author | Paul E. McKenney | 2017-05-25 17:05:00 +0200 |
|---|---|---|
| committer | Paul E. McKenney | 2017-08-17 16:26:04 +0200 |
| commit | 7e42776d5ed1fe9a941ed8876c5d15cd7cf5d89f (patch) | |
| tree | 254e896f95ad0aa9e3084645c6779d6b866d6f96 /kernel/rcu/Kconfig | |
| parent | rcu: Use timer as backstop for NOCB deferred wakeups (diff) | |
| download | kernel-qcow2-linux-7e42776d5ed1fe9a941ed8876c5d15cd7cf5d89f.tar.gz kernel-qcow2-linux-7e42776d5ed1fe9a941ed8876c5d15cd7cf5d89f.tar.xz kernel-qcow2-linux-7e42776d5ed1fe9a941ed8876c5d15cd7cf5d89f.zip | |
rcu: Drive TASKS_RCU directly off of PREEMPT
The actual use of TASKS_RCU is only when PREEMPT, otherwise RCU-sched
is used instead. This commit therefore makes synchronize_rcu_tasks()
and call_rcu_tasks() available always, but mapped to synchronize_sched()
and call_rcu_sched(), respectively, when !PREEMPT. This approach also
allows some #ifdefs to be removed from rcutorture.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/rcu/Kconfig')
| -rw-r--r-- | kernel/rcu/Kconfig | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig index be90c945063f..9210379c0353 100644 --- a/kernel/rcu/Kconfig +++ b/kernel/rcu/Kconfig @@ -69,8 +69,7 @@ config TREE_SRCU This option selects the full-fledged version of SRCU. config TASKS_RCU - bool - default n + def_bool PREEMPT select SRCU help This option enables a task-based RCU implementation that uses |