1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
#ifndef _IP_SET_SLIST_H
#define _IP_SET_SLIST_H
#include <linux/stddef.h>
#include <linux/prefetch.h>
#include <asm/system.h>
/*
* Single linked lists with a single pointer.
* Mostly useful for hash tables where the two pointer list head
* and list node is too wasteful.
*/
struct slist {
struct slist *next;
};
#define SLIST(name) struct slist name = { .next = NULL }
#define INIT_SLIST(ptr) ((ptr)->next = NULL)
#define slist_entry(ptr, type, member) container_of(ptr, type, member)
#define slist_for_each(pos, head) \
for (pos = (head)->next; pos && ({ prefetch(pos->next); 1; }); \
pos = pos->next)
#define slist_for_each_prev(prev, pos, head) \
for (prev = head, pos = (head)->next; \
pos && ({ prefetch(pos->next); 1; }); \
prev = pos, pos = pos->next)
#define slist_for_each_safe(pos, n, head) \
for (pos = (head)->next; pos && ({ n = pos->next; 1; }); \
pos = n)
/**
* slist_for_each_entry - iterate over list of given type
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct slist to use as a loop cursor.
* @head: the head for your list.
* @member: the name of the slist within the struct.
*/
#define slist_for_each_entry(tpos, pos, head, member) \
for (pos = (head)->next; \
pos && ({ prefetch(pos->next); 1; }) && \
({ tpos = slist_entry(pos, typeof(*tpos), member); 1; });\
pos = pos->next)
/**
* slist_for_each_entry_continue - iterate over a hlist continuing
* after current point
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct slist to use as a loop cursor.
* @member: the name of the slist within the struct.
*/
#define slist_for_each_entry_continue(tpos, pos, member) \
for (pos = (pos)->next; \
pos && ({ prefetch(pos->next); 1; }) && \
({ tpos = slist_entry(pos, typeof(*tpos), member); 1; });\
pos = pos->next)
/**
* slist_for_each_entry_from - iterate over a hlist continuing
* from current point
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct slist to use as a loop cursor.
* @member: the name of the slist within the struct.
*/
#define slist_for_each_entry_from(tpos, pos, member) \
for (; pos && ({ prefetch(pos->next); 1; }) && \
({ tpos = slist_entry(pos, typeof(*tpos), member); 1; });\
pos = pos->next)
/**
* slist_for_each_entry_safe - iterate over list of given type safe against
* removal of list entry
* @tpos: the type * to use as a loop cursor.
* @pos: the &struct slist to use as a loop cursor.
* @n: another &struct slist to use as temporary storage
* @head: the head for your list.
* @member: the name of the slist within the struct.
*/
#define slist_for_each_entry_safe(tpos, pos, n, head, member) \
for (pos = (head)->next; \
pos && ({ n = pos->next; 1; }) && \
({ tpos = slist_entry(pos, typeof(*tpos), member); 1; });\
pos = n)
#endif /* _IP_SET_SLIST_H */
|