diff options
author | Jeff Garzik <jeff@garzik.org> | 2007-02-17 16:10:59 -0500 |
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committer | Jeff Garzik <jeff@garzik.org> | 2007-02-17 16:10:59 -0500 |
commit | 419ee448ff76aef13526a99c2dc39ba3ae1f0970 (patch) | |
tree | b475ef43632700d5d7eab3e9e9f1a80159aad73d /include/linux/jffs.h | |
parent | 8a03d9a498eaf02c8a118752050a5154852c13bf (diff) |
Remove JFFS (version 1), as scheduled.
Unmaintained for years, few if any users.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'include/linux/jffs.h')
-rw-r--r-- | include/linux/jffs.h | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/include/linux/jffs.h b/include/linux/jffs.h deleted file mode 100644 index 92213215277f..000000000000 --- a/include/linux/jffs.h +++ /dev/null | |||
@@ -1,224 +0,0 @@ | |||
1 | /* | ||
2 | * JFFS -- Journalling Flash File System, Linux implementation. | ||
3 | * | ||
4 | * Copyright (C) 1999, 2000 Axis Communications AB. | ||
5 | * | ||
6 | * Created by Finn Hakansson <finn@axis.com>. | ||
7 | * | ||
8 | * This is free software; you can redistribute it and/or modify it | ||
9 | * under the terms of the GNU General Public License as published by | ||
10 | * the Free Software Foundation; either version 2 of the License, or | ||
11 | * (at your option) any later version. | ||
12 | * | ||
13 | * $Id: jffs.h,v 1.20 2001/09/18 21:33:37 dwmw2 Exp $ | ||
14 | * | ||
15 | * Ported to Linux 2.3.x and MTD: | ||
16 | * Copyright (C) 2000 Alexander Larsson (alex@cendio.se), Cendio Systems AB | ||
17 | * | ||
18 | */ | ||
19 | |||
20 | #ifndef __LINUX_JFFS_H__ | ||
21 | #define __LINUX_JFFS_H__ | ||
22 | |||
23 | #include <linux/types.h> | ||
24 | #include <linux/completion.h> | ||
25 | |||
26 | #define JFFS_VERSION_STRING "1.0" | ||
27 | |||
28 | /* This is a magic number that is used as an identification number for | ||
29 | this file system. It is written to the super_block structure. */ | ||
30 | #define JFFS_MAGIC_SB_BITMASK 0x07c0 /* 1984 */ | ||
31 | |||
32 | /* This is a magic number that every on-flash raw inode begins with. */ | ||
33 | #define JFFS_MAGIC_BITMASK 0x34383931 /* "1984" */ | ||
34 | |||
35 | /* These two bitmasks are the valid ones for the flash memories we have | ||
36 | for the moment. */ | ||
37 | #define JFFS_EMPTY_BITMASK 0xffffffff | ||
38 | #define JFFS_DIRTY_BITMASK 0x00000000 | ||
39 | |||
40 | /* This is the inode number of the root node. */ | ||
41 | #define JFFS_MIN_INO 1 | ||
42 | |||
43 | /* How many slots in the file hash table should we have? */ | ||
44 | #define JFFS_HASH_SIZE 40 | ||
45 | |||
46 | /* Don't use more than 254 bytes as the maximum allowed length of a file's | ||
47 | name due to errors that could occur during the scanning of the flash | ||
48 | memory. In fact, a name length of 255 or 0xff, could be the result of | ||
49 | an uncompleted write. For instance, if a raw inode is written to the | ||
50 | flash memory and there is a power lossage just before the length of | ||
51 | the name is written, the length 255 would be interpreted as an illegal | ||
52 | value. */ | ||
53 | #define JFFS_MAX_NAME_LEN 254 | ||
54 | |||
55 | /* Commands for ioctl(). */ | ||
56 | #define JFFS_IOCTL_MAGIC 't' | ||
57 | #define JFFS_PRINT_HASH _IO(JFFS_IOCTL_MAGIC, 90) | ||
58 | #define JFFS_PRINT_TREE _IO(JFFS_IOCTL_MAGIC, 91) | ||
59 | #define JFFS_GET_STATUS _IO(JFFS_IOCTL_MAGIC, 92) | ||
60 | |||
61 | /* XXX: This is something that we should try to get rid of in the future. */ | ||
62 | #define JFFS_MODIFY_INODE 0x01 | ||
63 | #define JFFS_MODIFY_NAME 0x02 | ||
64 | #define JFFS_MODIFY_DATA 0x04 | ||
65 | #define JFFS_MODIFY_EXIST 0x08 | ||
66 | |||
67 | struct jffs_control; | ||
68 | |||
69 | /* The JFFS raw inode structure: Used for storage on physical media. */ | ||
70 | /* Perhaps the uid, gid, atime, mtime and ctime members should have | ||
71 | more space due to future changes in the Linux kernel. Anyhow, since | ||
72 | a user of this filesystem probably have to fix a large number of | ||
73 | other things, we have decided to not be forward compatible. */ | ||
74 | struct jffs_raw_inode | ||
75 | { | ||
76 | __u32 magic; /* A constant magic number. */ | ||
77 | __u32 ino; /* Inode number. */ | ||
78 | __u32 pino; /* Parent's inode number. */ | ||
79 | __u32 version; /* Version number. */ | ||
80 | __u32 mode; /* The file's type or mode. */ | ||
81 | __u16 uid; /* The file's owner. */ | ||
82 | __u16 gid; /* The file's group. */ | ||
83 | __u32 atime; /* Last access time. */ | ||
84 | __u32 mtime; /* Last modification time. */ | ||
85 | __u32 ctime; /* Creation time. */ | ||
86 | __u32 offset; /* Where to begin to write. */ | ||
87 | __u32 dsize; /* Size of the node's data. */ | ||
88 | __u32 rsize; /* How much are going to be replaced? */ | ||
89 | __u8 nsize; /* Name length. */ | ||
90 | __u8 nlink; /* Number of links. */ | ||
91 | __u8 spare : 6; /* For future use. */ | ||
92 | __u8 rename : 1; /* Rename to a name of an already existing file? */ | ||
93 | __u8 deleted : 1; /* Has this file been deleted? */ | ||
94 | __u8 accurate; /* The inode is obsolete if accurate == 0. */ | ||
95 | __u32 dchksum; /* Checksum for the data. */ | ||
96 | __u16 nchksum; /* Checksum for the name. */ | ||
97 | __u16 chksum; /* Checksum for the raw inode. */ | ||
98 | }; | ||
99 | |||
100 | /* Define the offset of the accurate byte in struct jffs_raw_inode. */ | ||
101 | #define JFFS_RAW_INODE_ACCURATE_OFFSET (sizeof(struct jffs_raw_inode) \ | ||
102 | - 2 * sizeof(__u32) - sizeof(__u8)) | ||
103 | |||
104 | /* Define the offset of the chksum member in struct jffs_raw_inode. */ | ||
105 | #define JFFS_RAW_INODE_CHKSUM_OFFSET (sizeof(struct jffs_raw_inode) \ | ||
106 | - sizeof(__u16)) | ||
107 | |||
108 | /* Define the offset of the dchksum member in struct jffs_raw_inode. */ | ||
109 | #define JFFS_RAW_INODE_DCHKSUM_OFFSET (sizeof(struct jffs_raw_inode) \ | ||
110 | - sizeof(__u16) - sizeof(__u16) \ | ||
111 | - sizeof(__u32)) | ||
112 | |||
113 | |||
114 | /* The RAM representation of the node. The names of pointers to | ||
115 | jffs_nodes are very often just called `n' in the source code. */ | ||
116 | struct jffs_node | ||
117 | { | ||
118 | __u32 ino; /* Inode number. */ | ||
119 | __u32 version; /* Version number. */ | ||
120 | __u32 data_offset; /* Logic location of the data to insert. */ | ||
121 | __u32 data_size; /* The amount of data this node inserts. */ | ||
122 | __u32 removed_size; /* The amount of data that this node removes. */ | ||
123 | __u32 fm_offset; /* Physical location of the data in the actual | ||
124 | flash memory data chunk. */ | ||
125 | __u8 name_size; /* Size of the name. */ | ||
126 | struct jffs_fm *fm; /* Physical memory information. */ | ||
127 | struct jffs_node *version_prev; | ||
128 | struct jffs_node *version_next; | ||
129 | struct jffs_node *range_prev; | ||
130 | struct jffs_node *range_next; | ||
131 | }; | ||
132 | |||
133 | |||
134 | /* The RAM representation of a file (plain files, directories, | ||
135 | links, etc.). Pointers to jffs_files are normally named `f' | ||
136 | in the JFFS source code. */ | ||
137 | struct jffs_file | ||
138 | { | ||
139 | __u32 ino; /* Inode number. */ | ||
140 | __u32 pino; /* Parent's inode number. */ | ||
141 | __u32 mode; /* file_type, mode */ | ||
142 | __u16 uid; /* owner */ | ||
143 | __u16 gid; /* group */ | ||
144 | __u32 atime; /* Last access time. */ | ||
145 | __u32 mtime; /* Last modification time. */ | ||
146 | __u32 ctime; /* Creation time. */ | ||
147 | __u8 nsize; /* Name length. */ | ||
148 | __u8 nlink; /* Number of links. */ | ||
149 | __u8 deleted; /* Has this file been deleted? */ | ||
150 | char *name; /* The name of this file; NULL-terminated. */ | ||
151 | __u32 size; /* The total size of the file's data. */ | ||
152 | __u32 highest_version; /* The highest version number of this file. */ | ||
153 | struct jffs_control *c; | ||
154 | struct jffs_file *parent; /* Reference to the parent directory. */ | ||
155 | struct jffs_file *children; /* Always NULL for plain files. */ | ||
156 | struct jffs_file *sibling_prev; /* Siblings in the same directory. */ | ||
157 | struct jffs_file *sibling_next; | ||
158 | struct list_head hash; /* hash list. */ | ||
159 | struct jffs_node *range_head; /* The final data. */ | ||
160 | struct jffs_node *range_tail; /* The first data. */ | ||
161 | struct jffs_node *version_head; /* The youngest node. */ | ||
162 | struct jffs_node *version_tail; /* The oldest node. */ | ||
163 | }; | ||
164 | |||
165 | |||
166 | /* This is just a definition of a simple list used for keeping track of | ||
167 | files deleted due to a rename. This list is only used during the | ||
168 | mounting of the file system and only if there have been rename operations | ||
169 | earlier. */ | ||
170 | struct jffs_delete_list | ||
171 | { | ||
172 | __u32 ino; | ||
173 | struct jffs_delete_list *next; | ||
174 | }; | ||
175 | |||
176 | |||
177 | /* A struct for the overall file system control. Pointers to | ||
178 | jffs_control structs are named `c' in the source code. */ | ||
179 | struct jffs_control | ||
180 | { | ||
181 | struct super_block *sb; /* Reference to the VFS super block. */ | ||
182 | struct jffs_file *root; /* The root directory file. */ | ||
183 | struct list_head *hash; /* Hash table for finding files by ino. */ | ||
184 | struct jffs_fmcontrol *fmc; /* Flash memory control structure. */ | ||
185 | __u32 hash_len; /* The size of the hash table. */ | ||
186 | __u32 next_ino; /* Next inode number to use for new files. */ | ||
187 | __u16 building_fs; /* Is the file system being built right now? */ | ||
188 | struct jffs_delete_list *delete_list; /* Track deleted files. */ | ||
189 | pid_t thread_pid; /* GC thread's PID */ | ||
190 | struct task_struct *gc_task; /* GC task struct */ | ||
191 | struct completion gc_thread_comp; /* GC thread exit mutex */ | ||
192 | __u32 gc_minfree_threshold; /* GC trigger thresholds */ | ||
193 | __u32 gc_maxdirty_threshold; | ||
194 | }; | ||
195 | |||
196 | |||
197 | /* Used to inform about flash status. */ | ||
198 | struct jffs_flash_status | ||
199 | { | ||
200 | __u32 size; | ||
201 | __u32 used; | ||
202 | __u32 dirty; | ||
203 | __u32 begin; | ||
204 | __u32 end; | ||
205 | }; | ||
206 | |||
207 | /* This stuff could be used for finding memory leaks. */ | ||
208 | #define JFFS_MEMORY_DEBUG 0 | ||
209 | |||
210 | extern long no_jffs_node; | ||
211 | #if defined(JFFS_MEMORY_DEBUG) && JFFS_MEMORY_DEBUG | ||
212 | extern long no_jffs_control; | ||
213 | extern long no_jffs_raw_inode; | ||
214 | extern long no_jffs_node_ref; | ||
215 | extern long no_jffs_fm; | ||
216 | extern long no_jffs_fmcontrol; | ||
217 | extern long no_hash; | ||
218 | extern long no_name; | ||
219 | #define DJM(x) x | ||
220 | #else | ||
221 | #define DJM(x) | ||
222 | #endif | ||
223 | |||
224 | #endif /* __LINUX_JFFS_H__ */ | ||