Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d4db30af authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

rcu: Add warning to rcu_idle_enter() for irqs enabled 



All current callers of rcu_idle_enter() have irqs disabled, and
rcu_idle_enter() relies on this, but doesn't check.  This commit
therefore adds a RCU_LOCKDEP_WARN() to add some verification to the trust.
While we are there, pass "true" rather than "1" to rcu_eqs_enter().

Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 3a607992

kernel/rcu/tree.c

+2 −1
Original line number Diff line number Diff line
@@ -859,7 +859,8 @@ EXPORT_SYMBOL_GPL(rcu_idle_enter); 
 */

void rcu_user_enter(void)

{

	rcu_eqs_enter(1);

	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_user_enter() invoked with irqs enabled!!!");

	rcu_eqs_enter(true);

}

#endif /* CONFIG_NO_HZ_FULL */