From 1bb03ad383a7311f609ecfd13c3aaab248c0627f Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 25 Oct 2024 19:56:20 -0700 Subject: [PATCH] rcu: Add lockdep_assert_irqs_disabled() to rcu_exp_need_qs() Callers to rcu_exp_need_qs() are supposed to disable interrupts, so this commit enlists lockdep's aid in checking this. Signed-off-by: Paul E. McKenney Cc: Frederic Weisbecker Signed-off-by: Uladzislau Rezki (Sony) --- kernel/rcu/tree_exp.h | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h index ce5b09921d04..77efed89c79e 100644 --- a/kernel/rcu/tree_exp.h +++ b/kernel/rcu/tree_exp.h @@ -722,6 +722,7 @@ static void rcu_exp_sel_wait_wake(unsigned long s) /* Request an expedited quiescent state. */ static void rcu_exp_need_qs(void) { + lockdep_assert_irqs_disabled(); ASSERT_EXCLUSIVE_WRITER_SCOPED(*this_cpu_ptr(&rcu_data.cpu_no_qs.b.exp)); __this_cpu_write(rcu_data.cpu_no_qs.b.exp, true); /* Store .exp before .rcu_urgent_qs. */