summaryrefslogtreecommitdiff
path: root/include/linux/lockdep.h
diff options
context:
space:
mode:
authorPeter Zijlstra <peterz@infradead.org>2020-12-09 16:06:21 +0100
committerPeter Zijlstra <peterz@infradead.org>2021-01-14 11:20:17 +0100
commitdfd5e3f5fe27bda91d5cc028c86ffbb7a0614489 (patch)
tree6c35b4446fad60c64be61e7808ca1d710e6022da /include/linux/lockdep.h
parent5831c0f71d6664c6aa7b58ba969bf645c89ecb85 (diff)
locking/lockdep: Mark local_lock_t
The local_lock_t's are special, because they cannot form IRQ inversions, make sure we can tell them apart from the rest of the locks. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Diffstat (limited to 'include/linux/lockdep.h')
-rw-r--r--include/linux/lockdep.h15
1 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index b9e9adec73e8..7b7ebf2e28ec 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) \