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authorThomas Gleixner <tglx@linutronix.de>2019-07-27 00:19:38 +0300
committerIngo Molnar <mingo@kernel.org>2019-07-31 20:03:35 +0300
commit01b1d88b09824bea1a75b0bac04dcf50d9893875 (patch)
treefb8729501071f78d5c431bb8b93afcc21d6eddde /include/linux/rcutree.h
parentc1a280b68d4e6b6db4a65aa7865c22d8789ddf09 (diff)
downloadlinux-01b1d88b09824bea1a75b0bac04dcf50d9893875.tar.xz
rcu: Use CONFIG_PREEMPTION
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT. Both PREEMPT and PREEMPT_RT require the same functionality which today depends on CONFIG_PREEMPT. Switch the conditionals in RCU to use CONFIG_PREEMPTION. That's the first step towards RCU on RT. The further tweaks are work in progress. This neither touches the selftest bits which need a closer look by Paul. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul E. McKenney <paulmck@linux.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20190726212124.210156346@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/rcutree.h')
-rw-r--r--include/linux/rcutree.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 735601ac27d3..18b1ed9864b0 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -53,7 +53,7 @@ void rcu_scheduler_starting(void);
extern int rcu_scheduler_active __read_mostly;
void rcu_end_inkernel_boot(void);
bool rcu_is_watching(void);
-#ifndef CONFIG_PREEMPT
+#ifndef CONFIG_PREEMPTION
void rcu_all_qs(void);
#endif