2 * klist.h - Some generic list helpers, extending struct list_head a bit.
4 * Implementations are found in lib/klist.c
7 * Copyright (C) 2005 Patrick Mochel
9 * This file is rleased under the GPL v2.
12 #ifndef _LINUX_KLIST_H
13 #define _LINUX_KLIST_H
15 #include <linux/spinlock.h>
16 #include <linux/completion.h>
17 #include <linux/kref.h>
18 #include <linux/list.h>
23 struct list_head k_list;
24 void (*get)(struct klist_node *);
25 void (*put)(struct klist_node *);
28 #define KLIST_INIT(_name, _get, _put) \
29 { .k_lock = __SPIN_LOCK_UNLOCKED(_name.k_lock), \
30 .k_list = LIST_HEAD_INIT(_name.k_list), \
34 #define DEFINE_KLIST(_name, _get, _put) \
35 struct klist _name = KLIST_INIT(_name, _get, _put)
37 extern void klist_init(struct klist *k, void (*get)(struct klist_node *),
38 void (*put)(struct klist_node *));
41 struct klist *n_klist;
42 struct list_head n_node;
44 struct completion n_removed;
47 extern void klist_add_tail(struct klist_node *n, struct klist *k);
48 extern void klist_add_head(struct klist_node *n, struct klist *k);
49 extern void klist_add_after(struct klist_node *n, struct klist_node *pos);
50 extern void klist_add_before(struct klist_node *n, struct klist_node *pos);
52 extern void klist_del(struct klist_node *n);
53 extern void klist_remove(struct klist_node *n);
55 extern int klist_node_attached(struct klist_node *n);
59 struct klist *i_klist;
60 struct list_head *i_head;
61 struct klist_node *i_cur;
65 extern void klist_iter_init(struct klist *k, struct klist_iter *i);
66 extern void klist_iter_init_node(struct klist *k, struct klist_iter *i,
67 struct klist_node *n);
68 extern void klist_iter_exit(struct klist_iter *i);
69 extern struct klist_node *klist_next(struct klist_iter *i);