diff options
| author | Paul E. McKenney | 2020-11-19 10:13:06 -0800 |
|---|---|---|
| committer | Paul E. McKenney | 2021-01-04 15:54:49 -0800 |
| commit | a649d25dcc671a33b9cc3176411920fdc5fbd98e (patch) | |
| tree | 6d9f3c9a569cf09b06d5b5f0d44b416d0122908c /kernel/rcu/tree_plugin.h | |
| parent | c5586e32dfe258925c5dbb599bea3eadf34e79c1 (diff) | |
rcu: Add lockdep_assert_irqs_disabled() to rcu_sched_clock_irq() and callees
This commit adds a number of lockdep_assert_irqs_disabled() calls
to rcu_sched_clock_irq() and a number of the functions that it calls.
The point of this is to help track down a situation where lockdep appears
to be insisting that interrupts are enabled within these functions, which
should only ever be invoked from the scheduling-clock interrupt handler.
Link: https://lore.kernel.org/lkml/20201111133813.GA81547@elver.google.com/
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index fd8a52e9a887..cb76e70da8ca 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -682,6 +682,7 @@ static void rcu_flavor_sched_clock_irq(int user) { struct task_struct *t = current; + lockdep_assert_irqs_disabled(); if (user || rcu_is_cpu_rrupt_from_idle()) { rcu_note_voluntary_context_switch(current); } |