*/
static inline void *radix_tree_deref_slot(void **pslot)
{
- void *ret = *pslot;
+ void *ret = rcu_dereference(*pslot);
if (unlikely(radix_tree_is_indirect_ptr(ret)))
ret = RADIX_TREE_RETRY;
return ret;
unsigned long first_index, unsigned int max_items);
unsigned long radix_tree_next_hole(struct radix_tree_root *root,
unsigned long index, unsigned long max_scan);
+unsigned long radix_tree_prev_hole(struct radix_tree_root *root,
+ unsigned long index, unsigned long max_scan);
int radix_tree_preload(gfp_t gfp_mask);
void radix_tree_init(void);
void *radix_tree_tag_set(struct radix_tree_root *root,