rcu: Make TASKS_TRACE_RCU select IRQ_WORK

Tasks Trace RCU uses irq_work_queue() to safely awaken its grace-period
kthread, so this commit therefore causes the TASKS_TRACE_RCU Kconfig
option select the IRQ_WORK Kconfig option.

Reported-by: kernel test robot <lkp@intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig
index b71e21f..84dfa8d 100644 (file)
--- a/kernel/rcu/Kconfig
+++ b/kernel/rcu/Kconfig
@@ -95,6 +95,7 @@ config TASKS_RUDE_RCU
 
 config TASKS_TRACE_RCU
        def_bool 0
+       select IRQ_WORK
        help
          This option enables a task-based RCU implementation that uses
          explicit rcu_read_lock_trace() read-side markers, and allows