*
*/
struct ulist_iterator {
-#ifdef CONFIG_BTRFS_DEBUG
- int i;
-#endif
struct list_head *cur_list; /* hint to start search */
};
u64 val; /* value to store */
u64 aux; /* auxiliary value saved along with the val */
-#ifdef CONFIG_BTRFS_DEBUG
- int seqnum; /* sequence number this node is added */
-#endif
-
struct list_head list; /* used to link node */
struct rb_node rb_node; /* used to speed up search */
};
int ulist_add(struct ulist *ulist, u64 val, u64 aux, gfp_t gfp_mask);
int ulist_add_merge(struct ulist *ulist, u64 val, u64 aux,
u64 *old_aux, gfp_t gfp_mask);
+int ulist_del(struct ulist *ulist, u64 val, u64 aux);
/* just like ulist_add_merge() but take a pointer for the aux data */
static inline int ulist_add_merge_ptr(struct ulist *ulist, u64 val, void *aux,