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- diff --git a/include/linux/local_lock_internal.h b/include/linux/local_lock_internal.h
- index 4a8795b..ded90b0 100644
- --- a/include/linux/local_lock_internal.h
- +++ b/include/linux/local_lock_internal.h
- @@ -18,6 +18,7 @@ typedef struct {
- .dep_map = { \
- .name = #lockname, \
- .wait_type_inner = LD_WAIT_CONFIG, \
- + .lock_type = LD_LOCK_PERCPU, \
- }
- #else
- # define LL_DEP_MAP_INIT(lockname)
- @@ -30,7 +31,9 @@ do { \
- static struct lock_class_key __key; \
- \
- debug_check_no_locks_freed((void *)lock, sizeof(*lock));\
- - lockdep_init_map_wait(&(lock)->dep_map, #lock, &__key, 0, LD_WAIT_CONFIG);\
- + lockdep_init_map_type(&(lock)->dep_map, #lock, &__key, 0, \
- + LD_WAIT_CONFIG, LD_WAIT_INV, \
- + LD_LOCK_PERCPU); \
- } while (0)
-
- #ifdef CONFIG_DEBUG_LOCK_ALLOC
- diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
- index f559487..20b6797 100644
- --- a/include/linux/lockdep.h
- +++ b/include/linux/lockdep.h
- @@ -185,12 +185,19 @@ extern void lockdep_unregister_key(struct lock_class_key *key);
- * to lockdep:
- */
-
- -extern void lockdep_init_map_waits(struct lockdep_map *lock, const char *name,
- - struct lock_class_key *key, int subclass, short inner, short outer);
- +extern void lockdep_init_map_type(struct lockdep_map *lock, const char *name,
- + struct lock_class_key *key, int subclass, u8 inner, u8 outer, u8 lock_type);
- +
- +static inline void
- +lockdep_init_map_waits(struct lockdep_map *lock, const char *name,
- + struct lock_class_key *key, int subclass, u8 inner, u8 outer)
- +{
- + lockdep_init_map_type(lock, name, key, subclass, inner, LD_WAIT_INV, LD_LOCK_NORMAL);
- +}
-
- static inline void
- lockdep_init_map_wait(struct lockdep_map *lock, const char *name,
- - struct lock_class_key *key, int subclass, short inner)
- + struct lock_class_key *key, int subclass, u8 inner)
- {
- lockdep_init_map_waits(lock, name, key, subclass, inner, LD_WAIT_INV);
- }
- @@ -340,6 +347,8 @@ static inline void lockdep_set_selftest_task(struct task_struct *task)
- # define lock_set_class(l, n, k, s, i) do { } while (0)
- # define lock_set_subclass(l, s, i) do { } while (0)
- # define lockdep_init() do { } while (0)
- +# define lockdep_init_map_type(lock, name, key, sub, inner, outer, type) \
- + do { (void)(name); (void)(key); } while (0)
- # define lockdep_init_map_waits(lock, name, key, sub, inner, outer) \
- do { (void)(name); (void)(key); } while (0)
- # define lockdep_init_map_wait(lock, name, key, sub, inner) \
- diff --git a/include/linux/lockdep_types.h b/include/linux/lockdep_types.h
- index 9a1fd49..2ec9ff5 100644
- --- a/include/linux/lockdep_types.h
- +++ b/include/linux/lockdep_types.h
- @@ -30,6 +30,12 @@ enum lockdep_wait_type {
- LD_WAIT_MAX, /* must be last */
- };
-
- +enum lockdep_lock_type {
- + LD_LOCK_NORMAL = 0, /* normal, catch all */
- + LD_LOCK_PERCPU, /* percpu */
- + LD_LOCK_MAX,
- +};
- +
- #ifdef CONFIG_LOCKDEP
-
- /*
- @@ -119,8 +125,10 @@ struct lock_class {
- int name_version;
- const char *name;
-
- - short wait_type_inner;
- - short wait_type_outer;
- + u8 wait_type_inner;
- + u8 wait_type_outer;
- + u8 lock_type;
- + /* u8 hole; */
-
- #ifdef CONFIG_LOCK_STAT
- unsigned long contention_point[LOCKSTAT_POINTS];
- @@ -169,8 +177,10 @@ struct lockdep_map {
- struct lock_class_key *key;
- struct lock_class *class_cache[NR_LOCKDEP_CACHING_CLASSES];
- const char *name;
- - short wait_type_outer; /* can be taken in this context */
- - short wait_type_inner; /* presents this context */
- + u8 wait_type_outer; /* can be taken in this context */
- + u8 wait_type_inner; /* presents this context */
- + u8 lock_type;
- + /* u8 hole; */
- #ifdef CONFIG_LOCK_STAT
- int cpu;
- unsigned long ip;
- diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
- index 8ae9d7a..5184f68 100644
- --- a/kernel/locking/lockdep.c
- +++ b/kernel/locking/lockdep.c
- @@ -1293,6 +1293,7 @@ register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
- class->name_version = count_matching_names(class);
- class->wait_type_inner = lock->wait_type_inner;
- class->wait_type_outer = lock->wait_type_outer;
- + class->lock_type = lock->lock_type;
- /*
- * We use RCU's safe list-add method to make
- * parallel walking of the hash-list safe:
- @@ -4621,9 +4622,9 @@ print_lock_invalid_wait_context(struct task_struct *curr,
- */
- static int check_wait_context(struct task_struct *curr, struct held_lock *next)
- {
- - short next_inner = hlock_class(next)->wait_type_inner;
- - short next_outer = hlock_class(next)->wait_type_outer;
- - short curr_inner;
- + u8 next_inner = hlock_class(next)->wait_type_inner;
- + u8 next_outer = hlock_class(next)->wait_type_outer;
- + u8 curr_inner;
- int depth;
-
- if (!next_inner || next->trylock)
- @@ -4646,7 +4647,7 @@ static int check_wait_context(struct task_struct *curr, struct held_lock *next)
-
- for (; depth < curr->lockdep_depth; depth++) {
- struct held_lock *prev = curr->held_locks + depth;
- - short prev_inner = hlock_class(prev)->wait_type_inner;
- + u8 prev_inner = hlock_class(prev)->wait_type_inner;
-
- if (prev_inner) {
- /*
- @@ -4695,9 +4696,9 @@ static inline int check_wait_context(struct task_struct *curr,
- /*
- * Initialize a lock instance's lock-class mapping info:
- */
- -void lockdep_init_map_waits(struct lockdep_map *lock, const char *name,
- +void lockdep_init_map_type(struct lockdep_map *lock, const char *name,
- struct lock_class_key *key, int subclass,
- - short inner, short outer)
- + u8 inner, u8 outer, u8 lock_type)
- {
- int i;
-
- @@ -4720,6 +4721,7 @@ void lockdep_init_map_waits(struct lockdep_map *lock, const char *name,
-
- lock->wait_type_outer = outer;
- lock->wait_type_inner = inner;
- + lock->lock_type = lock_type;
-
- /*
- * No key, no joy, we need to hash something.
- @@ -4754,7 +4756,7 @@ void lockdep_init_map_waits(struct lockdep_map *lock, const char *name,
- raw_local_irq_restore(flags);
- }
- }
- -EXPORT_SYMBOL_GPL(lockdep_init_map_waits);
- +EXPORT_SYMBOL_GPL(lockdep_init_map_type);
-
- struct lock_class_key __lockdep_no_validate__;
- EXPORT_SYMBOL_GPL(__lockdep_no_validate__);
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