Commit | Line | Data |
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9a19fea4 | 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 | ||
d856f1e3 JB |
12 | #ifndef _LINUX_KLIST_H |
13 | #define _LINUX_KLIST_H | |
14 | ||
9a19fea4 | 15 | #include <linux/spinlock.h> |
16 | #include <linux/completion.h> | |
17 | #include <linux/kref.h> | |
18 | #include <linux/list.h> | |
19 | ||
34bb61f9 | 20 | struct klist_node; |
9a19fea4 | 21 | struct klist { |
22 | spinlock_t k_lock; | |
23 | struct list_head k_list; | |
34bb61f9 JB |
24 | void (*get)(struct klist_node *); |
25 | void (*put)(struct klist_node *); | |
9a19fea4 | 26 | }; |
27 | ||
28 | ||
34bb61f9 JB |
29 | extern void klist_init(struct klist * k, void (*get)(struct klist_node *), |
30 | void (*put)(struct klist_node *)); | |
9a19fea4 | 31 | |
32 | struct klist_node { | |
33 | struct klist * n_klist; | |
34 | struct list_head n_node; | |
35 | struct kref n_ref; | |
36 | struct completion n_removed; | |
37 | }; | |
38 | ||
d856f1e3 JB |
39 | extern void klist_add_tail(struct klist_node * n, struct klist * k); |
40 | extern void klist_add_head(struct klist_node * n, struct klist * k); | |
9a19fea4 | 41 | |
42 | extern void klist_del(struct klist_node * n); | |
43 | extern void klist_remove(struct klist_node * n); | |
44 | ||
8b0c250b | 45 | extern int klist_node_attached(struct klist_node * n); |
46 | ||
9a19fea4 | 47 | |
48 | struct klist_iter { | |
49 | struct klist * i_klist; | |
50 | struct list_head * i_head; | |
51 | struct klist_node * i_cur; | |
52 | }; | |
53 | ||
54 | ||
55 | extern void klist_iter_init(struct klist * k, struct klist_iter * i); | |
56 | extern void klist_iter_init_node(struct klist * k, struct klist_iter * i, | |
57 | struct klist_node * n); | |
58 | extern void klist_iter_exit(struct klist_iter * i); | |
59 | extern struct klist_node * klist_next(struct klist_iter * i); | |
60 | ||
d856f1e3 | 61 | #endif |