| Message ID | 20190712170024.111093-2-joel@joelfernandes.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Harden list_for_each_entry_rcu() and family | expand |
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index c3bf44ba42e5..bb961cd89e76 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -93,17 +93,13 @@ module_param(rcu_normal_after_boot, int, 0); */ int rcu_read_lock_sched_held(void) { - int lockdep_opinion = 0; - if (!debug_lockdep_rcu_enabled()) return 1; if (!rcu_is_watching()) return 0; if (!rcu_lockdep_current_cpu_online()) return 0; - if (debug_locks) - lockdep_opinion = lock_is_held(&rcu_sched_lock_map); - return lockdep_opinion || !preemptible(); + return lock_is_held(&rcu_sched_lock_map) || !preemptible(); } EXPORT_SYMBOL(rcu_read_lock_sched_held); #endif
In rcu_read_lock_sched_held(), debug_locks can never be true at the point we check it because we already check debug_locks in debug_lockdep_rcu_enabled() in the beginning. Remove the check. Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> --- kernel/rcu/update.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)