| |
| #define POISON_POINTER_DELTA 0 |
| #define LIST_POISON1 ((void *) (0x00100100 + POISON_POINTER_DELTA)) |
| #define LIST_POISON2 ((void *) (0x00200200 + POISON_POINTER_DELTA)) |
| |
| #if !defined(offsetof) |
| #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) |
| #endif |
| #define container_of(ptr, type, member) ({ \ |
| const typeof( ((type *)0)->member ) *__mptr = (ptr); \ |
| (type *)( (char *)__mptr - offsetof(type,member) );}) |
| |
| struct list_head { |
| struct list_head *next, *prev; |
| }; |
| |
| #define LIST_HEAD_INIT(name) { &(name), &(name) } |
| |
| #define LIST_HEAD(name) \ |
| struct list_head name = LIST_HEAD_INIT(name) |
| |
| static inline void INIT_LIST_HEAD(struct list_head *list) |
| { |
| list->next = list; |
| list->prev = list; |
| } |
| |
| static inline void __list_add(struct list_head *new, |
| struct list_head *prev, |
| struct list_head *next) |
| { |
| next->prev = new; |
| new->next = next; |
| new->prev = prev; |
| prev->next = new; |
| } |
| |
| static inline void list_add(struct list_head *new, struct list_head *head) |
| { |
| __list_add(new, head, head->next); |
| } |
| |
| static inline void list_add_tail(struct list_head *new, struct list_head *head) |
| { |
| __list_add(new, head->prev, head); |
| } |
| |
| static inline void __list_del(struct list_head * prev, struct list_head * next) |
| { |
| next->prev = prev; |
| prev->next = next; |
| } |
| |
| static inline void __list_del_entry(struct list_head *entry) |
| { |
| __list_del(entry->prev, entry->next); |
| } |
| |
| static inline void list_del(struct list_head *entry) |
| { |
| __list_del(entry->prev, entry->next); |
| entry->next = LIST_POISON1; |
| entry->prev = LIST_POISON2; |
| } |
| |
| static inline int list_empty(const struct list_head *head) |
| { |
| return head->next == head; |
| } |
| |
| #define list_entry(ptr, type, member) \ |
| container_of(ptr, type, member) |
| |
| #define list_for_each(pos, head) \ |
| for (pos = (head)->next; pos != (head); pos = pos->next) |
| |
| #define list_for_each_safe(pos, n, head) \ |
| for (pos = (head)->next, n = pos->next; pos != (head); \ |
| pos = n, n = pos->next) |
| #define list_for_each_entry(pos, head, member) \ |
| for (pos = list_entry((head)->next, typeof(*pos), member); \ |
| &pos->member != (head); \ |
| pos = list_entry(pos->member.next, typeof(*pos), member)) |
| #define list_for_each_entry_safe(pos, n, head, member) \ |
| for (pos = list_entry((head)->next, typeof(*pos), member), \ |
| n = list_entry(pos->member.next, typeof(*pos), member); \ |
| &pos->member != (head); \ |
| pos = n, n = list_entry(n->member.next, typeof(*n), member)) |