Commit 1bb03ad3 authored by Paul E. McKenney's avatar Paul E. McKenney Committed by Uladzislau Rezki (Sony)
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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: default avatarPaul E. McKenney <paulmck@kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: default avatarUladzislau Rezki (Sony) <urezki@gmail.com>
parent ecc5e6b0

kernel/rcu/tree_exp.h

+1 −0
Original line number Diff line number Diff line
@@ -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. */