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1 | /* |
2 | * klist.h - Some generic list helpers, extending struct list_head a bit. | |
3 | * | |
4 | * Implementations are found in lib/klist.c | |
5 | * | |
6 | * | |
7 | * Copyright (C) 2005 Patrick Mochel | |
8 | * | |
9 | * This file is rleased under the GPL v2. | |
10 | */ | |
11 | ||
12 | #include <linux/spinlock.h> | |
13 | #include <linux/completion.h> | |
14 | #include <linux/kref.h> | |
15 | #include <linux/list.h> | |
16 | ||
17 | ||
18 | struct klist { | |
19 | spinlock_t k_lock; | |
20 | struct list_head k_list; | |
21 | }; | |
22 | ||
23 | ||
24 | extern void klist_init(struct klist * k); | |
25 | ||
26 | ||
27 | struct klist_node { | |
28 | struct klist * n_klist; | |
29 | struct list_head n_node; | |
30 | struct kref n_ref; | |
31 | struct completion n_removed; | |
32 | }; | |
33 | ||
34 | extern void klist_add_tail(struct klist * k, struct klist_node * n); | |
35 | extern void klist_add_head(struct klist * k, struct klist_node * n); | |
36 | ||
37 | extern void klist_del(struct klist_node * n); | |
38 | extern void klist_remove(struct klist_node * n); | |
39 | ||
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40 | extern int klist_node_attached(struct klist_node * n); |
41 | ||
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42 | |
43 | struct klist_iter { | |
44 | struct klist * i_klist; | |
45 | struct list_head * i_head; | |
46 | struct klist_node * i_cur; | |
47 | }; | |
48 | ||
49 | ||
50 | extern void klist_iter_init(struct klist * k, struct klist_iter * i); | |
51 | extern void klist_iter_init_node(struct klist * k, struct klist_iter * i, | |
52 | struct klist_node * n); | |
53 | extern void klist_iter_exit(struct klist_iter * i); | |
54 | extern struct klist_node * klist_next(struct klist_iter * i); | |
55 |