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
|
/*
* memory buffer pool support
*/
#ifndef _LINUX_MEMPOOL_H
#define _LINUX_MEMPOOL_H
#include <linux/compiler.h>
#include <linux/bug.h>
#include <linux/slab.h>
struct kmem_cache;
typedef struct mempool_s {
size_t elem_size;
} mempool_t;
extern int mempool_resize(mempool_t *pool, int new_min_nr);
static inline void mempool_free(void *element, mempool_t *pool)
{
free(element);
}
static inline void *mempool_alloc(mempool_t *pool, gfp_t gfp_mask) __malloc
{
BUG_ON(!pool->elem_size);
return kmalloc(pool->elem_size, gfp_mask);
}
static inline void mempool_exit(mempool_t *pool) {}
static inline void mempool_destroy(mempool_t *pool)
{
free(pool);
}
static inline int
mempool_init_slab_pool(mempool_t *pool, int min_nr, struct kmem_cache *kc)
{
pool->elem_size = 0;
return 0;
}
static inline mempool_t *
mempool_create_slab_pool(int min_nr, struct kmem_cache *kc)
{
mempool_t *pool = malloc(sizeof(*pool));
pool->elem_size = 0;
return pool;
}
static inline int mempool_init_kmalloc_pool(mempool_t *pool, int min_nr, size_t size)
{
pool->elem_size = size;
return 0;
}
static inline mempool_t *mempool_create_kmalloc_pool(int min_nr, size_t size)
{
mempool_t *pool = malloc(sizeof(*pool));
pool->elem_size = size;
return pool;
}
static inline int mempool_init_page_pool(mempool_t *pool, int min_nr, int order)
{
pool->elem_size = PAGE_SIZE << order;
return 0;
}
static inline mempool_t *mempool_create_page_pool(int min_nr, int order)
{
mempool_t *pool = malloc(sizeof(*pool));
pool->elem_size = PAGE_SIZE << order;
return pool;
}
#endif /* _LINUX_MEMPOOL_H */
|
