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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2019-10-15 21:18:14 +0200 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2019-12-09 12:37:51 -0800 |
| commit | 90326f0521a88004194f88f1b597b54347482b5c (patch) | |
| tree | d9f297243f2aa6b07dac050789271ae4f2f244ce /kernel/rcu/tree.c | |
| parent | b3e627d3d5092a87fc9b9e37e341610cfecfbfdc (diff) | |
| download | lwn-90326f0521a88004194f88f1b597b54347482b5c.tar.gz lwn-90326f0521a88004194f88f1b597b54347482b5c.zip | |
rcu: Use CONFIG_PREEMPTION where appropriate
The config option `CONFIG_PREEMPT' is used for the preemption model
"Low-Latency Desktop". The config option `CONFIG_PREEMPTION' is enabled
when kernel preemption is enabled which is true for the preemption model
`CONFIG_PREEMPT' and `CONFIG_PREEMPT_RT'.
Use `CONFIG_PREEMPTION' if it applies to both preemption models and not
just to `CONFIG_PREEMPT'.
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: rcu@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree.c')
| -rw-r--r-- | kernel/rcu/tree.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 1694a6b57ad8..c9dbb05e4c13 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2698,9 +2698,9 @@ EXPORT_SYMBOL_GPL(kfree_call_rcu); /* * During early boot, any blocking grace-period wait automatically - * implies a grace period. Later on, this is never the case for PREEMPT. + * implies a grace period. Later on, this is never the case for PREEMPTION. * - * Howevr, because a context switch is a grace period for !PREEMPT, any + * Howevr, because a context switch is a grace period for !PREEMPTION, any * blocking grace-period wait automatically implies a grace period if * there is only one CPU online at any point time during execution of * either synchronize_rcu() or synchronize_rcu_expedited(). It is OK to |