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git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blob - include/linux/klist.h
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/kref.h>
17 #include <linux/list.h>
22 struct list_head k_list
;
23 void (*get
)(struct klist_node
*);
24 void (*put
)(struct klist_node
*);
27 #define KLIST_INIT(_name, _get, _put) \
28 { .k_lock = __SPIN_LOCK_UNLOCKED(_name.k_lock), \
29 .k_list = LIST_HEAD_INIT(_name.k_list), \
33 #define DEFINE_KLIST(_name, _get, _put) \
34 struct klist _name = KLIST_INIT(_name, _get, _put)
36 extern void klist_init(struct klist
*k
, void (*get
)(struct klist_node
*),
37 void (*put
)(struct klist_node
*));
40 void *n_klist
; /* never access directly */
41 struct list_head n_node
;
45 extern void klist_add_tail(struct klist_node
*n
, struct klist
*k
);
46 extern void klist_add_head(struct klist_node
*n
, struct klist
*k
);
47 extern void klist_add_after(struct klist_node
*n
, struct klist_node
*pos
);
48 extern void klist_add_before(struct klist_node
*n
, struct klist_node
*pos
);
50 extern void klist_del(struct klist_node
*n
);
51 extern void klist_remove(struct klist_node
*n
);
53 extern int klist_node_attached(struct klist_node
*n
);
57 struct klist
*i_klist
;
58 struct klist_node
*i_cur
;
62 extern void klist_iter_init(struct klist
*k
, struct klist_iter
*i
);
63 extern void klist_iter_init_node(struct klist
*k
, struct klist_iter
*i
,
64 struct klist_node
*n
);
65 extern void klist_iter_exit(struct klist_iter
*i
);
66 extern struct klist_node
*klist_next(struct klist_iter
*i
);