#define mt_lock_is_held(mt) \
(!(mt)->ma_external_lock || lock_is_held((mt)->ma_external_lock))
+#define mt_write_lock_is_held(mt) \
+ (!(mt)->ma_external_lock || \
+ lock_is_held_type((mt)->ma_external_lock, 0))
+
#define mt_set_external_lock(mt, lock) \
(mt)->ma_external_lock = &(lock)->dep_map
#define mt_on_stack(mt) (mt).ma_external_lock = NULL
#else
typedef struct { /* nothing */ } lockdep_map_p;
-#define mt_lock_is_held(mt) 1
+#define mt_lock_is_held(mt) 1
+#define mt_write_lock_is_held(mt) 1
#define mt_set_external_lock(mt, lock) do { } while (0)
#define mt_on_stack(mt) do { } while (0)
#endif
}
}
+static inline bool mt_write_locked(const struct maple_tree *mt)
+{
+ return mt_external_lock(mt) ? mt_write_lock_is_held(mt) :
+ lockdep_is_held(&mt->ma_lock);
+}
+
static inline bool mt_locked(const struct maple_tree *mt)
{
return mt_external_lock(mt) ? mt_lock_is_held(mt) :
static inline void *mt_slot_locked(struct maple_tree *mt, void __rcu **slots,
unsigned char offset)
{
- return rcu_dereference_protected(slots[offset], mt_locked(mt));
+ return rcu_dereference_protected(slots[offset], mt_write_locked(mt));
}
/*
* mas_slot_locked() - Get the slot value when holding the maple tree lock.
static inline void *mt_root_locked(struct maple_tree *mt)
{
- return rcu_dereference_protected(mt->ma_root, mt_locked(mt));
+ return rcu_dereference_protected(mt->ma_root, mt_write_locked(mt));
}
/*