diff options
author | Al Viro <viro@www.linux.org.uk> | 2005-04-25 21:32:12 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-25 21:32:12 -0400 |
commit | 94f2f715771d0aa5554451d1e2a920f11b8be3fe (patch) | |
tree | 07ebba8f6bbb91627c64c1f27e91e916dfd70756 /include/linux/iso_fs.h | |
parent | 7366d36cb967d7a3ac324c789a8b718e61d01b31 (diff) |
[PATCH] isofs includes sanitized
fs/isofs includes trimmed down to something resembling sanity.
Kernel-only parts of linux/iso_fs.h and entire linux/iso_fs_{sb,i}.h
moved to fs/isofs/isofs.h.
A lot of useless #include in fs/isofs/*.c killed.
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/iso_fs.h')
-rw-r--r-- | include/linux/iso_fs.h | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/include/linux/iso_fs.h b/include/linux/iso_fs.h index 099039d4b10d..47967878bfef 100644 --- a/include/linux/iso_fs.h +++ b/include/linux/iso_fs.h | |||
@@ -1,4 +1,3 @@ | |||
1 | |||
2 | #ifndef _ISOFS_FS_H | 1 | #ifndef _ISOFS_FS_H |
3 | #define _ISOFS_FS_H | 2 | #define _ISOFS_FS_H |
4 | 3 | ||
@@ -163,150 +162,4 @@ struct iso_directory_record { | |||
163 | 162 | ||
164 | #define ISOFS_SUPER_MAGIC 0x9660 | 163 | #define ISOFS_SUPER_MAGIC 0x9660 |
165 | 164 | ||
166 | #ifdef __KERNEL__ | ||
167 | /* Number conversion inlines, named after the section in ISO 9660 | ||
168 | they correspond to. */ | ||
169 | |||
170 | #include <asm/byteorder.h> | ||
171 | #include <asm/unaligned.h> | ||
172 | #include <linux/iso_fs_i.h> | ||
173 | #include <linux/iso_fs_sb.h> | ||
174 | |||
175 | static inline struct isofs_sb_info *ISOFS_SB(struct super_block *sb) | ||
176 | { | ||
177 | return sb->s_fs_info; | ||
178 | } | ||
179 | |||
180 | static inline struct iso_inode_info *ISOFS_I(struct inode *inode) | ||
181 | { | ||
182 | return container_of(inode, struct iso_inode_info, vfs_inode); | ||
183 | } | ||
184 | |||
185 | static inline int isonum_711(char *p) | ||
186 | { | ||
187 | return *(u8 *)p; | ||
188 | } | ||
189 | static inline int isonum_712(char *p) | ||
190 | { | ||
191 | return *(s8 *)p; | ||
192 | } | ||
193 | static inline unsigned int isonum_721(char *p) | ||
194 | { | ||
195 | return le16_to_cpu(get_unaligned((__le16 *)p)); | ||
196 | } | ||
197 | static inline unsigned int isonum_722(char *p) | ||
198 | { | ||
199 | return be16_to_cpu(get_unaligned((__le16 *)p)); | ||
200 | } | ||
201 | static inline unsigned int isonum_723(char *p) | ||
202 | { | ||
203 | /* Ignore bigendian datum due to broken mastering programs */ | ||
204 | return le16_to_cpu(get_unaligned((__le16 *)p)); | ||
205 | } | ||
206 | static inline unsigned int isonum_731(char *p) | ||
207 | { | ||
208 | return le32_to_cpu(get_unaligned((__le32 *)p)); | ||
209 | } | ||
210 | static inline unsigned int isonum_732(char *p) | ||
211 | { | ||
212 | return be32_to_cpu(get_unaligned((__le32 *)p)); | ||
213 | } | ||
214 | static inline unsigned int isonum_733(char *p) | ||
215 | { | ||
216 | /* Ignore bigendian datum due to broken mastering programs */ | ||
217 | return le32_to_cpu(get_unaligned((__le32 *)p)); | ||
218 | } | ||
219 | extern int iso_date(char *, int); | ||
220 | |||
221 | struct inode; /* To make gcc happy */ | ||
222 | |||
223 | extern int parse_rock_ridge_inode(struct iso_directory_record *, struct inode *); | ||
224 | extern int get_rock_ridge_filename(struct iso_directory_record *, char *, struct inode *); | ||
225 | extern int isofs_name_translate(struct iso_directory_record *, char *, struct inode *); | ||
226 | |||
227 | int get_joliet_filename(struct iso_directory_record *, unsigned char *, struct inode *); | ||
228 | int get_acorn_filename(struct iso_directory_record *, char *, struct inode *); | ||
229 | |||
230 | extern struct dentry *isofs_lookup(struct inode *, struct dentry *, struct nameidata *); | ||
231 | extern struct buffer_head *isofs_bread(struct inode *, sector_t); | ||
232 | extern int isofs_get_blocks(struct inode *, sector_t, struct buffer_head **, unsigned long); | ||
233 | |||
234 | extern struct inode *isofs_iget(struct super_block *sb, | ||
235 | unsigned long block, | ||
236 | unsigned long offset); | ||
237 | |||
238 | /* Because the inode number is no longer relevant to finding the | ||
239 | * underlying meta-data for an inode, we are free to choose a more | ||
240 | * convenient 32-bit number as the inode number. The inode numbering | ||
241 | * scheme was recommended by Sergey Vlasov and Eric Lammerts. */ | ||
242 | static inline unsigned long isofs_get_ino(unsigned long block, | ||
243 | unsigned long offset, | ||
244 | unsigned long bufbits) | ||
245 | { | ||
246 | return (block << (bufbits - 5)) | (offset >> 5); | ||
247 | } | ||
248 | |||
249 | /* Every directory can have many redundant directory entries scattered | ||
250 | * throughout the directory tree. First there is the directory entry | ||
251 | * with the name of the directory stored in the parent directory. | ||
252 | * Then, there is the "." directory entry stored in the directory | ||
253 | * itself. Finally, there are possibly many ".." directory entries | ||
254 | * stored in all the subdirectories. | ||
255 | * | ||
256 | * In order for the NFS get_parent() method to work and for the | ||
257 | * general consistency of the dcache, we need to make sure the | ||
258 | * "i_iget5_block" and "i_iget5_offset" all point to exactly one of | ||
259 | * the many redundant entries for each directory. We normalize the | ||
260 | * block and offset by always making them point to the "." directory. | ||
261 | * | ||
262 | * Notice that we do not use the entry for the directory with the name | ||
263 | * that is located in the parent directory. Even though choosing this | ||
264 | * first directory is more natural, it is much easier to find the "." | ||
265 | * entry in the NFS get_parent() method because it is implicitly | ||
266 | * encoded in the "extent + ext_attr_length" fields of _all_ the | ||
267 | * redundant entries for the directory. Thus, it can always be | ||
268 | * reached regardless of which directory entry you have in hand. | ||
269 | * | ||
270 | * This works because the "." entry is simply the first directory | ||
271 | * record when you start reading the file that holds all the directory | ||
272 | * records, and this file starts at "extent + ext_attr_length" blocks. | ||
273 | * Because the "." entry is always the first entry listed in the | ||
274 | * directories file, the normalized "offset" value is always 0. | ||
275 | * | ||
276 | * You should pass the directory entry in "de". On return, "block" | ||
277 | * and "offset" will hold normalized values. Only directories are | ||
278 | * affected making it safe to call even for non-directory file | ||
279 | * types. */ | ||
280 | static inline void | ||
281 | isofs_normalize_block_and_offset(struct iso_directory_record* de, | ||
282 | unsigned long *block, | ||
283 | unsigned long *offset) | ||
284 | { | ||
285 | /* Only directories are normalized. */ | ||
286 | if (de->flags[0] & 2) { | ||
287 | *offset = 0; | ||
288 | *block = (unsigned long)isonum_733(de->extent) | ||
289 | + (unsigned long)isonum_711(de->ext_attr_length); | ||
290 | } | ||
291 | } | ||
292 | |||
293 | extern struct inode_operations isofs_dir_inode_operations; | ||
294 | extern struct file_operations isofs_dir_operations; | ||
295 | extern struct address_space_operations isofs_symlink_aops; | ||
296 | extern struct export_operations isofs_export_ops; | ||
297 | |||
298 | /* The following macros are used to check for memory leaks. */ | ||
299 | #ifdef LEAK_CHECK | ||
300 | #define free_s leak_check_free_s | ||
301 | #define malloc leak_check_malloc | ||
302 | #define sb_bread leak_check_bread | ||
303 | #define brelse leak_check_brelse | ||
304 | extern void * leak_check_malloc(unsigned int size); | ||
305 | extern void leak_check_free_s(void * obj, int size); | ||
306 | extern struct buffer_head * leak_check_bread(struct super_block *sb, int block); | ||
307 | extern void leak_check_brelse(struct buffer_head * bh); | ||
308 | #endif /* LEAK_CHECK */ | ||
309 | |||
310 | #endif /* __KERNEL__ */ | ||
311 | |||
312 | #endif | 165 | #endif |