diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2024-02-22 10:09:19 -0800 |
|---|---|---|
| committer | Uladzislau Rezki (Sony) <urezki@gmail.com> | 2024-04-15 11:29:48 +0200 |
| commit | 1b4e9fdf9ed489c779259734e0b47f408c7786f2 (patch) | |
| tree | c15a32fae576c6db806834bbbfb55c783f85d554 /kernel/rcu | |
| parent | 65b4a59557f6fb5d4355093ad5a2c1bd5598ee41 (diff) | |
rcu: Create NEED_TASKS_RCU to factor out enablement logic
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.
This commit therefore creates a new NEED_TASKS_RCU Kconfig option so
that the default value of TASKS_RCU can depend on a combination of this
new option and any needed enablement logic, so that this logic is in
one place.
While in the area, also anticipate a likely future change by adding
PREEMPT_AUTO to that logic.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Ankur Arora <ankur.a.arora@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/Kconfig | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig index 7dca0138260c..3e079de0f5b4 100644 --- a/kernel/rcu/Kconfig +++ b/kernel/rcu/Kconfig @@ -85,9 +85,13 @@ config FORCE_TASKS_RCU idle, and user-mode execution as quiescent states. Not for manual selection in most cases. -config TASKS_RCU +config NEED_TASKS_RCU bool default n + +config TASKS_RCU + bool + default NEED_TASKS_RCU && (PREEMPTION || PREEMPT_AUTO) select IRQ_WORK config FORCE_TASKS_RUDE_RCU |