diff options
Diffstat (limited to 'net/rds/xlist.h')
-rw-r--r-- | net/rds/xlist.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/net/rds/xlist.h b/net/rds/xlist.h deleted file mode 100644 index e6b5190daddd..000000000000 --- a/net/rds/xlist.h +++ /dev/null @@ -1,80 +0,0 @@ -#ifndef _LINUX_XLIST_H -#define _LINUX_XLIST_H - -#include <linux/stddef.h> -#include <linux/poison.h> -#include <linux/prefetch.h> -#include <asm/system.h> - -struct xlist_head { - struct xlist_head *next; -}; - -static inline void INIT_XLIST_HEAD(struct xlist_head *list) -{ - list->next = NULL; -} - -static inline int xlist_empty(struct xlist_head *head) -{ - return head->next == NULL; -} - -static inline void xlist_add(struct xlist_head *new, struct xlist_head *tail, - struct xlist_head *head) -{ - struct xlist_head *cur; - struct xlist_head *check; - - while (1) { - cur = head->next; - tail->next = cur; - check = cmpxchg(&head->next, cur, new); - if (check == cur) - break; - } -} - -static inline struct xlist_head *xlist_del_head(struct xlist_head *head) -{ - struct xlist_head *cur; - struct xlist_head *check; - struct xlist_head *next; - - while (1) { - cur = head->next; - if (!cur) - goto out; - - next = cur->next; - check = cmpxchg(&head->next, cur, next); - if (check == cur) - goto out; - } -out: - return cur; -} - -static inline struct xlist_head *xlist_del_head_fast(struct xlist_head *head) -{ - struct xlist_head *cur; - - cur = head->next; - if (!cur) - return NULL; - - head->next = cur->next; - return cur; -} - -static inline void xlist_splice(struct xlist_head *list, - struct xlist_head *head) -{ - struct xlist_head *cur; - - WARN_ON(head->next); - cur = xchg(&list->next, NULL); - head->next = cur; -} - -#endif |