locking/spinlock/rt: Prepare for RT local_lock
Add the static and runtime initializer mechanics to support the RT variant
of local_lock, which requires the lock type in the lockdep map to be set
to LD_LOCK_PERCPU.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210815211305.967526724@linutronix.de
diff --git a/kernel/locking/spinlock_rt.c b/kernel/locking/spinlock_rt.c
index c36648b..d2912e4 100644
--- a/kernel/locking/spinlock_rt.c
+++ b/kernel/locking/spinlock_rt.c
@@ -120,10 +120,13 @@ EXPORT_SYMBOL(rt_spin_trylock_bh);
#ifdef CONFIG_DEBUG_LOCK_ALLOC
void __rt_spin_lock_init(spinlock_t *lock, const char *name,
- struct lock_class_key *key)
+ struct lock_class_key *key, bool percpu)
{
+ u8 type = percpu ? LD_LOCK_PERCPU : LD_LOCK_NORMAL;
+
debug_check_no_locks_freed((void *)lock, sizeof(*lock));
- lockdep_init_map_wait(&lock->dep_map, name, key, 0, LD_WAIT_CONFIG);
+ lockdep_init_map_type(&lock->dep_map, name, key, 0, LD_WAIT_CONFIG,
+ LD_WAIT_INV, type);
}
EXPORT_SYMBOL(__rt_spin_lock_init);
#endif