hc
2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c
kernel/kernel/locking/spinlock_debug.c
....@@ -14,14 +14,14 @@
1414 #include <linux/export.h>
1515
1616 void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
17
- struct lock_class_key *key)
17
+ struct lock_class_key *key, short inner)
1818 {
1919 #ifdef CONFIG_DEBUG_LOCK_ALLOC
2020 /*
2121 * Make sure we are not reinitializing a held lock:
2222 */
2323 debug_check_no_locks_freed((void *)lock, sizeof(*lock));
24
- lockdep_init_map(&lock->dep_map, name, key, 0);
24
+ lockdep_init_map_wait(&lock->dep_map, name, key, 0, inner);
2525 #endif
2626 lock->raw_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
2727 lock->magic = SPINLOCK_MAGIC;
....@@ -31,7 +31,7 @@
3131
3232 EXPORT_SYMBOL(__raw_spin_lock_init);
3333
34
-#ifndef CONFIG_PREEMPT_RT_FULL
34
+#ifndef CONFIG_PREEMPT_RT
3535 void __rwlock_init(rwlock_t *lock, const char *name,
3636 struct lock_class_key *key)
3737 {
....@@ -40,7 +40,7 @@
4040 * Make sure we are not reinitializing a held lock:
4141 */
4242 debug_check_no_locks_freed((void *)lock, sizeof(*lock));
43
- lockdep_init_map(&lock->dep_map, name, key, 0);
43
+ lockdep_init_map_wait(&lock->dep_map, name, key, 0, LD_WAIT_CONFIG);
4444 #endif
4545 lock->raw_lock = (arch_rwlock_t) __ARCH_RW_LOCK_UNLOCKED;
4646 lock->magic = RWLOCK_MAGIC;
....@@ -113,6 +113,7 @@
113113 {
114114 debug_spin_lock_before(lock);
115115 arch_spin_lock(&lock->raw_lock);
116
+ mmiowb_spin_lock();
116117 debug_spin_lock_after(lock);
117118 }
118119
....@@ -120,8 +121,10 @@
120121 {
121122 int ret = arch_spin_trylock(&lock->raw_lock);
122123
123
- if (ret)
124
+ if (ret) {
125
+ mmiowb_spin_lock();
124126 debug_spin_lock_after(lock);
127
+ }
125128 #ifndef CONFIG_SMP
126129 /*
127130 * Must not happen on UP:
....@@ -133,11 +136,12 @@
133136
134137 void do_raw_spin_unlock(raw_spinlock_t *lock)
135138 {
139
+ mmiowb_spin_unlock();
136140 debug_spin_unlock(lock);
137141 arch_spin_unlock(&lock->raw_lock);
138142 }
139143
140
-#ifndef CONFIG_PREEMPT_RT_FULL
144
+#ifndef CONFIG_PREEMPT_RT
141145 static void rwlock_bug(rwlock_t *lock, const char *msg)
142146 {
143147 if (!debug_locks_off())