source: rtems/cpukit/libfs/src/jffs2/src/malloc-rtems.c @ 6ac6a5c8

5
Last change on this file since 6ac6a5c8 was 6ac6a5c8, checked in by Sebastian Huber <sebastian.huber@…>, on 03/27/18 at 11:01:56

jffs2: Do not use command line defines

Update #3375.

  • Property mode set to 100644
File size: 2.8 KB
Line 
1#include "rtems-jffs2-config.h"
2
3/*
4 * JFFS2 -- Journalling Flash File System, Version 2.
5 *
6 * Copyright (C) 2001-2003 Free Software Foundation, Inc.
7 *
8 * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
9 *
10 * For licensing information, see the file 'LICENCE' in this directory.
11 *
12 * $Id: malloc-ecos.c,v 1.4 2003/11/26 15:55:35 dwmw2 Exp $
13 *
14 */
15
16#include <linux/kernel.h>
17#include "nodelist.h"
18
19struct jffs2_full_dirent *jffs2_alloc_full_dirent(int namesize)
20{
21        return malloc(sizeof(struct jffs2_full_dirent) + namesize);
22}
23
24void jffs2_free_full_dirent(struct jffs2_full_dirent *x)
25{
26        free(x);
27}
28
29struct jffs2_full_dnode *jffs2_alloc_full_dnode(void)
30{
31        return malloc(sizeof(struct jffs2_full_dnode));
32}
33
34void jffs2_free_full_dnode(struct jffs2_full_dnode *x)
35{
36        free(x);
37}
38
39struct jffs2_raw_dirent *jffs2_alloc_raw_dirent(void)
40{
41        return malloc(sizeof(struct jffs2_raw_dirent));
42}
43
44void jffs2_free_raw_dirent(struct jffs2_raw_dirent *x)
45{
46        free(x);
47}
48
49struct jffs2_raw_inode *jffs2_alloc_raw_inode(void)
50{
51        return malloc(sizeof(struct jffs2_raw_inode));
52}
53
54void jffs2_free_raw_inode(struct jffs2_raw_inode *x)
55{
56        free(x);
57}
58
59struct jffs2_tmp_dnode_info *jffs2_alloc_tmp_dnode_info(void)
60{
61        return malloc(sizeof(struct jffs2_tmp_dnode_info));
62}
63
64void jffs2_free_tmp_dnode_info(struct jffs2_tmp_dnode_info *x)
65{
66        free(x);
67}
68
69static struct jffs2_raw_node_ref *jffs2_alloc_refblock(void)
70{
71        struct jffs2_raw_node_ref *ret;
72
73        ret = malloc((REFS_PER_BLOCK + 1) * sizeof(*ret));
74        if (ret) {
75                int i = 0;
76                for (i=0; i < REFS_PER_BLOCK; i++) {
77                        ret[i].flash_offset = REF_EMPTY_NODE;
78                        ret[i].next_in_ino = NULL;
79                }
80                ret[i].flash_offset = REF_LINK_NODE;
81                ret[i].next_in_ino = NULL;
82        }
83        return ret;
84}
85
86int jffs2_prealloc_raw_node_refs(struct jffs2_sb_info *c,
87                                 struct jffs2_eraseblock *jeb, int nr)
88{
89        struct jffs2_raw_node_ref **p, *ref;
90        int i = nr;
91
92        p = &jeb->last_node;
93        ref = *p;
94
95        /* If jeb->last_node is really a valid node then skip over it */
96        if (ref && ref->flash_offset != REF_EMPTY_NODE)
97                ref++;
98
99        while (i) {
100                if (!ref) {
101                        ref = *p = jffs2_alloc_refblock();
102                        if (!ref)
103                                return -ENOMEM;
104                }
105                if (ref->flash_offset == REF_LINK_NODE) {
106                        p = &ref->next_in_ino;
107                        ref = *p;
108                        continue;
109                }
110                i--;
111                ref++;
112        }
113        jeb->allocated_refs = nr;
114
115        return 0;
116}
117
118void jffs2_free_refblock(struct jffs2_raw_node_ref *x)
119{
120        free(x);
121}
122
123struct jffs2_node_frag *jffs2_alloc_node_frag(void)
124{
125        return malloc(sizeof(struct jffs2_node_frag));
126}
127
128void jffs2_free_node_frag(struct jffs2_node_frag *x)
129{
130        free(x);
131}
132
133struct jffs2_inode_cache *jffs2_alloc_inode_cache(void)
134{
135        struct jffs2_inode_cache *ret = malloc(sizeof(struct jffs2_inode_cache));
136        D1(printk(KERN_DEBUG "Allocated inocache at %p\n", ret));
137        return ret;
138}
139
140void jffs2_free_inode_cache(struct jffs2_inode_cache *x)
141{
142        D1(printk(KERN_DEBUG "Freeing inocache at %p\n", x));
143        free(x);
144}
145
Note: See TracBrowser for help on using the repository browser.