Commit 02b3c5fc authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Uladzislau Rezki (Sony)
Browse files

tracing: Select new NEED_TASKS_RCU Kconfig option 



Currently, if a Kconfig option depends on TASKS_RCU, it conditionally does
"select TASKS_RCU if PREEMPTION".  This works, but requires any change in
this enablement logic to be replicated across all such "select" clauses.
A new NEED_TASKS_RCU Kconfig option has been created to allow this
enablement logic to be in one place in kernel/rcu/Kconfig.

Therefore, select the new NEED_TASKS_RCU Kconfig option instead of the
old TASKS_RCU option.

Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: <linux-trace-kernel@vger.kernel.org>
Cc: Ankur Arora <ankur.a.arora@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarUladzislau Rezki (Sony) <urezki@gmail.com>
parent 900da4d2

kernel/trace/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -163,7 +163,7 @@ config TRACING 
	select BINARY_PRINTF

	select EVENT_TRACING

	select TRACE_CLOCK

	select TASKS_RCU if PREEMPTION

	select NEED_TASKS_RCU



config GENERIC_TRACER

	bool
@@ -204,7 +204,7 @@ config FUNCTION_TRACER 
	select GENERIC_TRACER

	select CONTEXT_SWITCH_TRACER

	select GLOB

	select TASKS_RCU if PREEMPTION

	select NEED_TASKS_RCU

	select TASKS_RUDE_RCU

	help

	  Enable the kernel to trace every kernel function. This is done