diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2019-07-26 23:19:38 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-07-31 19:03:35 +0200 |
| commit | 01b1d88b09824bea1a75b0bac04dcf50d9893875 (patch) | |
| tree | fb8729501071f78d5c431bb8b93afcc21d6eddde /kernel/trace/Kconfig | |
| parent | sched/preempt: Use CONFIG_PREEMPTION where appropriate (diff) | |
| download | linux-dev-01b1d88b09824bea1a75b0bac04dcf50d9893875.tar.xz linux-dev-01b1d88b09824bea1a75b0bac04dcf50d9893875.zip | |
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 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 98da8998c25c..d2c1fe0b451d 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -146,7 +146,7 @@ config FUNCTION_TRACER select GENERIC_TRACER select CONTEXT_SWITCH_TRACER select GLOB - select TASKS_RCU if PREEMPT + select TASKS_RCU if PREEMPTION help Enable the kernel to trace every kernel function. This is done by using a compiler feature to insert a small, 5-byte No-Operation |