4 * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o.
7 * This file may be redistributed under the terms of the GNU Public
13 * Non-GNU C compilers won't necessarily understand inline
16 #define NO_INLINE_FUNCS
20 * Where the master copy of the superblock is located, and how big
21 * superblocks are supposed to be. We define SUPERBLOCK_SIZE because
22 * the size of the superblock structure is not necessarily trustworthy
23 * (some versions have the padding set up so that the superblock is
26 #define SUPERBLOCK_OFFSET 1024
27 #define SUPERBLOCK_SIZE 1024
30 * The last ext2fs revision level that this version of the library is
33 #define EXT2_LIB_CURRENT_REV 0
35 #include <sys/types.h>
36 #include <linux/types.h>
39 typedef unsigned int dgrp_t
;
41 #include "et/com_err.h"
42 #include "ext2fs/io.h"
43 #include "ext2fs/ext2_err.h"
45 typedef struct struct_ext2_filsys
*ext2_filsys
;
47 struct ext2fs_struct_generic_bitmap
{
54 errcode_t base_error_code
;
58 #define EXT2FS_MARK_ERROR 0
59 #define EXT2FS_UNMARK_ERROR 1
60 #define EXT2FS_TEST_ERROR 2
62 typedef struct ext2fs_struct_generic_bitmap
*ext2fs_generic_bitmap
;
63 typedef struct ext2fs_struct_generic_bitmap
*ext2fs_inode_bitmap
;
64 typedef struct ext2fs_struct_generic_bitmap
*ext2fs_block_bitmap
;
66 #ifdef EXT2_DYNAMIC_REV
67 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO(s)
69 #define EXT2_FIRST_INODE(s) EXT2_FIRST_INO
70 #define EXT2_INODE_SIZE(s) sizeof(struct ext2_inode)
74 * badblocks list definitions
77 typedef struct ext2_struct_badblocks_list
*ext2_badblocks_list
;
78 typedef struct ext2_struct_badblocks_iterate
*ext2_badblocks_iterate
;
81 typedef struct ext2_struct_badblocks_list
*badblocks_list
;
82 typedef struct ext2_struct_badblocks_iterate
*badblocks_iterate
;
84 #define BADBLOCKS_FLAG_DIRTY 1
87 * ext2_dblist structure and abstractions (see dblist.c)
89 struct ext2_db_entry
{
95 typedef struct ext2_struct_dblist
*ext2_dblist
;
97 #define DBLIST_ABORT 1
100 * Flags for the ext2_filsys structure
103 #define EXT2_FLAG_RW 0x01
104 #define EXT2_FLAG_CHANGED 0x02
105 #define EXT2_FLAG_DIRTY 0x04
106 #define EXT2_FLAG_VALID 0x08
107 #define EXT2_FLAG_IB_DIRTY 0x10
108 #define EXT2_FLAG_BB_DIRTY 0x20
109 #define EXT2_FLAG_SWAP_BYTES 0x40
110 #define EXT2_FLAG_SWAP_BYTES_READ 0x80
111 #define EXT2_FLAG_SWAP_BYTES_WRITE 0x100
112 #define EXT2_FLAG_MASTER_SB_ONLY 0x200
113 #define EXT2_FLAG_FORCE 0x400
116 * Special flag in the ext2 inode i_flag field that means that this is
117 * a new inode. (So that ext2_write_inode() can clear extra fields.)
119 #define EXT2_NEW_INODE_FL 0x80000000
121 struct struct_ext2_filsys
{
126 struct ext2_super_block
* super
;
129 unsigned long group_desc_count
;
130 unsigned long desc_blocks
;
131 struct ext2_group_desc
* group_desc
;
132 int inode_blocks_per_group
;
133 ext2fs_inode_bitmap inode_map
;
134 ext2fs_block_bitmap block_map
;
135 errcode_t (*get_blocks
)(ext2_filsys fs
, ino_t ino
, blk_t
*blocks
);
136 errcode_t (*check_directory
)(ext2_filsys fs
, ino_t ino
);
137 errcode_t (*write_bitmaps
)(ext2_filsys fs
);
138 errcode_t (*read_inode
)(ext2_filsys fs
, ino_t ino
,
139 struct ext2_inode
*inode
);
140 errcode_t (*write_inode
)(ext2_filsys fs
, ino_t ino
,
141 struct ext2_inode
*inode
);
142 badblocks_list badblocks
;
145 * Reserved for future expansion
150 * Not used by ext2fs library; reserved for the use of the
151 * calling application.
156 #include "ext2fs/bitops.h"
159 * Return flags for the block iterator functions
161 #define BLOCK_CHANGED 1
162 #define BLOCK_ABORT 2
163 #define BLOCK_ERROR 4
166 * Block interate flags
168 * BLOCK_FLAG_APPEND, or BLOCK_FLAG_HOLE, indicates that the interator
169 * function should be called on blocks where the block number is zero.
170 * This is used by ext2fs_expand_dir() to be able to add a new block
171 * to an inode. It can also be used for programs that want to be able
172 * to deal with files that contain "holes".
174 * BLOCK_FLAG_TRAVERSE indicates that the iterator function for the
175 * indirect, doubly indirect, etc. blocks should be called after all
176 * of the blocks containined in the indirect blocks are processed.
177 * This is useful if you are going to be deallocating blocks from an
180 * BLOCK_FLAG_DATA_ONLY indicates that the iterator function should be
181 * called for data blocks only.
183 #define BLOCK_FLAG_APPEND 1
184 #define BLOCK_FLAG_HOLE 1
185 #define BLOCK_FLAG_DEPTH_TRAVERSE 2
186 #define BLOCK_FLAG_DATA_ONLY 4
189 * Magic "block count" return values for the block iterator function.
191 #define BLOCK_COUNT_IND (-1)
192 #define BLOCK_COUNT_DIND (-2)
193 #define BLOCK_COUNT_TIND (-3)
194 #define BLOCK_COUNT_TRANSLATOR (-4)
197 * Return flags for the directory iterator functions
199 #define DIRENT_CHANGED 1
200 #define DIRENT_ABORT 2
201 #define DIRENT_ERROR 3
204 * Directory iterator flags
207 #define DIRENT_FLAG_INCLUDE_EMPTY 1
210 #define DIRENT_DOT_FILE 1
211 #define DIRENT_DOT_DOT_FILE 2
212 #define DIRENT_OTHER_FILE 3
215 * Inode scan definitions
217 typedef struct ext2_struct_inode_scan
*ext2_inode_scan
;
222 #define EXT2_SF_CHK_BADBLOCKS 0x0001
223 #define EXT2_SF_BAD_INODE_BLK 0x0002
224 #define EXT2_SF_BAD_EXTRA_BYTES 0x0004
225 #define EXT2_SF_SKIP_MISSING_ITABLE 0x0008
228 * ext2fs_check_if_mounted flags
230 #define EXT2_MF_MOUNTED 1
231 #define EXT2_MF_ISROOT 2
232 #define EXT2_MF_READONLY 4
235 * Ext2/linux mode flags. We define them here so that we don't need
236 * to depend on the OS's sys/stat.h, since we may be compiling on a
239 #define LINUX_S_IFMT 00170000
240 #define LINUX_S_IFSOCK 0140000
241 #define LINUX_S_IFLNK 0120000
242 #define LINUX_S_IFREG 0100000
243 #define LINUX_S_IFBLK 0060000
244 #define LINUX_S_IFDIR 0040000
245 #define LINUX_S_IFCHR 0020000
246 #define LINUX_S_IFIFO 0010000
247 #define LINUX_S_ISUID 0004000
248 #define LINUX_S_ISGID 0002000
249 #define LINUX_S_ISVTX 0001000
251 #define LINUX_S_IRWXU 00700
252 #define LINUX_S_IRUSR 00400
253 #define LINUX_S_IWUSR 00200
254 #define LINUX_S_IXUSR 00100
256 #define LINUX_S_IRWXG 00070
257 #define LINUX_S_IRGRP 00040
258 #define LINUX_S_IWGRP 00020
259 #define LINUX_S_IXGRP 00010
261 #define LINUX_S_IRWXO 00007
262 #define LINUX_S_IROTH 00004
263 #define LINUX_S_IWOTH 00002
264 #define LINUX_S_IXOTH 00001
266 #define LINUX_S_ISLNK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFLNK)
267 #define LINUX_S_ISREG(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFREG)
268 #define LINUX_S_ISDIR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFDIR)
269 #define LINUX_S_ISCHR(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFCHR)
270 #define LINUX_S_ISBLK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFBLK)
271 #define LINUX_S_ISFIFO(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFIFO)
272 #define LINUX_S_ISSOCK(m) (((m) & LINUX_S_IFMT) == LINUX_S_IFSOCK)
275 * ext2_icount_t abstraction
277 #define EXT2_ICOUNT_OPT_INCREMENT 0x01
279 typedef struct ext2_icount
*ext2_icount_t
;
282 * For checking structure magic numbers...
285 #define EXT2_CHECK_MAGIC(struct, code) \
286 if ((struct)->magic != (code)) return (code)
290 * The ext2fs library private definition of the ext2 superblock, so we
291 * don't have to depend on the kernel's definition of the superblock,
292 * which might not have the latest features.
295 __u32 s_inodes_count
; /* Inodes count */
296 __u32 s_blocks_count
; /* Blocks count */
297 __u32 s_r_blocks_count
; /* Reserved blocks count */
298 __u32 s_free_blocks_count
; /* Free blocks count */
299 __u32 s_free_inodes_count
; /* Free inodes count */
300 __u32 s_first_data_block
; /* First Data Block */
301 __u32 s_log_block_size
; /* Block size */
302 __s32 s_log_frag_size
; /* Fragment size */
303 __u32 s_blocks_per_group
; /* # Blocks per group */
304 __u32 s_frags_per_group
; /* # Fragments per group */
305 __u32 s_inodes_per_group
; /* # Inodes per group */
306 __u32 s_mtime
; /* Mount time */
307 __u32 s_wtime
; /* Write time */
308 __u16 s_mnt_count
; /* Mount count */
309 __s16 s_max_mnt_count
; /* Maximal mount count */
310 __u16 s_magic
; /* Magic signature */
311 __u16 s_state
; /* File system state */
312 __u16 s_errors
; /* Behaviour when detecting errors */
313 __u16 s_minor_rev_level
; /* minor revision level */
314 __u32 s_lastcheck
; /* time of last check */
315 __u32 s_checkinterval
; /* max. time between checks */
316 __u32 s_creator_os
; /* OS */
317 __u32 s_rev_level
; /* Revision level */
318 __u16 s_def_resuid
; /* Default uid for reserved blocks */
319 __u16 s_def_resgid
; /* Default gid for reserved blocks */
321 * These fields are for EXT2_DYNAMIC_REV superblocks only.
323 * Note: the difference between the compatible feature set and
324 * the incompatible feature set is that if there is a bit set
325 * in the incompatible feature set that the kernel doesn't
326 * know about, it should refuse to mount the filesystem.
328 * e2fsck's requirements are more strict; if it doesn't know
329 * about a feature in either the compatible or incompatible
330 * feature set, it must abort and not try to meddle with
331 * things it doesn't understand...
333 __u32 s_first_ino
; /* First non-reserved inode */
334 __u16 s_inode_size
; /* size of inode structure */
335 __u16 s_block_group_nr
; /* block group # of this superblock */
336 __u32 s_feature_compat
; /* compatible feature set */
337 __u32 s_feature_incompat
; /* incompatible feature set */
338 __u32 s_feature_ro_compat
; /* readonly-compatible feature set */
339 __u8 s_uuid
[16]; /* 128-bit uuid for volume */
340 char s_volume_name
[16]; /* volume name */
341 char s_last_mounted
[64]; /* directory where last mounted */
342 __u32 s_reserved
[206]; /* Padding to the end of the block */
346 * Feature set definitions (that might not be in ext2_fs.h
347 * (was EXT2_COMPAT_SPARSE_SUPER)
349 #ifndef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
350 #define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
353 #define EXT2_LIB_FEATURE_COMPAT_SUPP 0
354 #define EXT2_LIB_FEATURE_INCOMPAT_SUPP 0
355 #define EXT2_LIB_FEATURE_RO_COMPAT_SUPP EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
358 * function prototypes
362 extern errcode_t
ext2fs_new_inode(ext2_filsys fs
, ino_t dir
, int mode
,
363 ext2fs_inode_bitmap map
, ino_t
*ret
);
364 extern errcode_t
ext2fs_new_block(ext2_filsys fs
, blk_t goal
,
365 ext2fs_block_bitmap map
, blk_t
*ret
);
366 extern errcode_t
ext2fs_get_free_blocks(ext2_filsys fs
, blk_t start
,
367 blk_t finish
, int num
,
368 ext2fs_block_bitmap map
,
371 /* allocate_tables.c */
372 errcode_t
ext2fs_allocate_tables(ext2_filsys fs
);
375 extern errcode_t
ext2fs_badblocks_list_create(ext2_badblocks_list
*ret
,
377 extern void ext2fs_badblocks_list_free(ext2_badblocks_list bb
);
378 extern errcode_t
ext2fs_badblocks_list_add(ext2_badblocks_list bb
,
380 extern int ext2fs_badblocks_list_test(ext2_badblocks_list bb
,
383 ext2fs_badblocks_list_iterate_begin(ext2_badblocks_list bb
,
384 ext2_badblocks_iterate
*ret
);
385 extern int ext2fs_badblocks_list_iterate(ext2_badblocks_iterate iter
,
387 extern void ext2fs_badblocks_list_iterate_end(ext2_badblocks_iterate iter
);
390 extern errcode_t
badblocks_list_create(badblocks_list
*ret
, int size
);
391 extern void badblocks_list_free(badblocks_list bb
);
392 extern errcode_t
badblocks_list_add(badblocks_list bb
, blk_t blk
);
393 extern int badblocks_list_test(badblocks_list bb
, blk_t blk
);
394 extern errcode_t
badblocks_list_iterate_begin(badblocks_list bb
,
395 badblocks_iterate
*ret
);
396 extern int badblocks_list_iterate(badblocks_iterate iter
, blk_t
*blk
);
397 extern void badblocks_list_iterate_end(badblocks_iterate iter
);
400 extern errcode_t
ext2fs_update_bb_inode(ext2_filsys fs
,
401 ext2_badblocks_list bb_list
);
404 extern errcode_t
ext2fs_write_inode_bitmap(ext2_filsys fs
);
405 extern errcode_t
ext2fs_write_block_bitmap (ext2_filsys fs
);
406 extern errcode_t
ext2fs_read_inode_bitmap (ext2_filsys fs
);
407 extern errcode_t
ext2fs_read_block_bitmap(ext2_filsys fs
);
408 extern errcode_t
ext2fs_allocate_generic_bitmap(__u32 start
,
412 ext2fs_generic_bitmap
*ret
);
413 extern errcode_t
ext2fs_allocate_block_bitmap(ext2_filsys fs
,
415 ext2fs_block_bitmap
*ret
);
416 extern errcode_t
ext2fs_allocate_inode_bitmap(ext2_filsys fs
,
418 ext2fs_inode_bitmap
*ret
);
419 extern errcode_t
ext2fs_fudge_inode_bitmap_end(ext2fs_inode_bitmap bitmap
,
420 ino_t end
, ino_t
*oend
);
421 extern errcode_t
ext2fs_fudge_block_bitmap_end(ext2fs_block_bitmap bitmap
,
422 blk_t end
, blk_t
*oend
);
423 extern void ext2fs_clear_inode_bitmap(ext2fs_inode_bitmap bitmap
);
424 extern void ext2fs_clear_block_bitmap(ext2fs_block_bitmap bitmap
);
425 extern errcode_t
ext2fs_read_bitmaps(ext2_filsys fs
);
426 extern errcode_t
ext2fs_write_bitmaps(ext2_filsys fs
);
429 extern errcode_t
ext2fs_block_iterate(ext2_filsys fs
,
433 int (*func
)(ext2_filsys fs
,
439 errcode_t
ext2fs_block_iterate2(ext2_filsys fs
,
443 int (*func
)(ext2_filsys fs
,
452 extern errcode_t
ext2fs_check_desc(ext2_filsys fs
);
455 extern errcode_t
ext2fs_close(ext2_filsys fs
);
456 extern errcode_t
ext2fs_flush(ext2_filsys fs
);
457 extern int ext2fs_bg_has_super(ext2_filsys fs
, int group_block
);
460 extern errcode_t
ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1
,
461 ext2fs_block_bitmap bm2
);
462 extern errcode_t
ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1
,
463 ext2fs_inode_bitmap bm2
);
467 errcode_t
ext2fs_get_num_dirs(ext2_filsys fs
, ino_t
*ret_num_dirs
);
468 errcode_t
ext2fs_init_dblist(ext2_filsys fs
, ext2_dblist
*ret_dblist
);
469 void ext2fs_free_dblist(ext2_dblist dblist
);
470 errcode_t
ext2fs_add_dir_block(ext2_dblist dblist
, ino_t ino
, blk_t blk
,
472 errcode_t
ext2fs_dblist_iterate(ext2_dblist dblist
,
473 int (*func
)(ext2_filsys fs
,
474 struct ext2_db_entry
*db_info
,
477 errcode_t
ext2fs_set_dir_block(ext2_dblist dblist
, ino_t ino
, blk_t blk
,
482 ext2fs_dblist_dir_iterate(ext2_dblist dblist
,
485 int (*func
)(ino_t dir
,
487 struct ext2_dir_entry
*dirent
,
495 extern errcode_t
ext2fs_read_dir_block(ext2_filsys fs
, blk_t block
,
497 extern errcode_t
ext2fs_write_dir_block(ext2_filsys fs
, blk_t block
,
501 extern errcode_t
ext2fs_dir_iterate(ext2_filsys fs
,
505 int (*func
)(struct ext2_dir_entry
*dirent
,
511 /* private to library */
512 extern int ext2fs_process_dir_block(ext2_filsys fs
,
519 extern errcode_t
ext2fs_expand_dir(ext2_filsys fs
, ino_t dir
);
522 extern void ext2fs_free(ext2_filsys fs
);
523 extern void ext2fs_free_generic_bitmap(ext2fs_inode_bitmap bitmap
);
524 extern void ext2fs_free_block_bitmap(ext2fs_block_bitmap bitmap
);
525 extern void ext2fs_free_inode_bitmap(ext2fs_inode_bitmap bitmap
);
528 extern errcode_t
ext2fs_get_device_size(const char *file
, int blocksize
,
532 extern errcode_t
ext2fs_initialize(const char *name
, int flags
,
533 struct ext2_super_block
*param
,
534 io_manager manager
, ext2_filsys
*ret_fs
);
537 extern errcode_t
ext2fs_open_inode_scan(ext2_filsys fs
, int buffer_blocks
,
538 ext2_inode_scan
*ret_scan
);
539 extern void ext2fs_close_inode_scan(ext2_inode_scan scan
);
540 extern errcode_t
ext2fs_get_next_inode(ext2_inode_scan scan
, ino_t
*ino
,
541 struct ext2_inode
*inode
);
542 extern errcode_t
ext2fs_inode_scan_goto_blockgroup(ext2_inode_scan scan
,
544 extern void ext2fs_set_inode_callback
545 (ext2_inode_scan scan
,
546 errcode_t (*done_group
)(ext2_filsys fs
,
547 ext2_inode_scan scan
,
550 void *done_group_data
);
551 extern int ext2fs_inode_scan_flags(ext2_inode_scan scan
, int set_flags
,
553 extern errcode_t
ext2fs_read_inode (ext2_filsys fs
, ino_t ino
,
554 struct ext2_inode
* inode
);
555 extern errcode_t
ext2fs_write_inode(ext2_filsys fs
, ino_t ino
,
556 struct ext2_inode
* inode
);
557 extern errcode_t
ext2fs_get_blocks(ext2_filsys fs
, ino_t ino
, blk_t
*blocks
);
558 extern errcode_t
ext2fs_check_directory(ext2_filsys fs
, ino_t ino
);
561 extern void ext2fs_free_icount(ext2_icount_t icount
);
562 extern errcode_t
ext2fs_create_icount2(ext2_filsys fs
, int flags
, int size
,
563 ext2_icount_t hint
, ext2_icount_t
*ret
);
564 extern errcode_t
ext2fs_create_icount(ext2_filsys fs
, int flags
, int size
,
566 extern errcode_t
ext2fs_icount_fetch(ext2_icount_t icount
, ino_t ino
,
568 extern errcode_t
ext2fs_icount_increment(ext2_icount_t icount
, ino_t ino
,
570 extern errcode_t
ext2fs_icount_decrement(ext2_icount_t icount
, ino_t ino
,
572 extern errcode_t
ext2fs_icount_store(ext2_icount_t icount
, ino_t ino
,
574 extern ino_t
ext2fs_get_icount_size(ext2_icount_t icount
);
575 errcode_t
ext2fs_icount_validate(ext2_icount_t icount
, FILE *);
578 extern errcode_t
ext2fs_check_if_mounted(const char *file
, int *mount_flags
);
581 extern errcode_t
ext2fs_lookup(ext2_filsys fs
, ino_t dir
, const char *name
,
582 int namelen
, char *buf
, ino_t
*inode
);
583 extern errcode_t
ext2fs_namei(ext2_filsys fs
, ino_t root
, ino_t cwd
,
584 const char *name
, ino_t
*inode
);
585 errcode_t
ext2fs_namei_follow(ext2_filsys fs
, ino_t root
, ino_t cwd
,
586 const char *name
, ino_t
*inode
);
587 extern errcode_t
ext2fs_follow_link(ext2_filsys fs
, ino_t root
, ino_t cwd
,
588 ino_t inode
, ino_t
*res_inode
);
591 int ext2fs_native_flag(void);
594 extern errcode_t
ext2fs_new_dir_block(ext2_filsys fs
, ino_t dir_ino
,
595 ino_t parent_ino
, char **block
);
598 extern errcode_t
ext2fs_mkdir(ext2_filsys fs
, ino_t parent
, ino_t inum
,
602 extern errcode_t
ext2fs_open(const char *name
, int flags
, int superblock
,
603 int block_size
, io_manager manager
,
604 ext2_filsys
*ret_fs
);
607 extern errcode_t
ext2fs_get_pathname(ext2_filsys fs
, ino_t dir
, ino_t ino
,
611 errcode_t
ext2fs_link(ext2_filsys fs
, ino_t dir
, const char *name
,
612 ino_t ino
, int flags
);
613 errcode_t
ext2fs_unlink(ext2_filsys fs
, ino_t dir
, const char *name
,
614 ino_t ino
, int flags
);
617 extern errcode_t
ext2fs_read_bb_inode(ext2_filsys fs
,
618 ext2_badblocks_list
*bb_list
);
621 extern errcode_t
ext2fs_read_bb_FILE(ext2_filsys fs
, FILE *f
,
622 ext2_badblocks_list
*bb_list
,
623 void (*invalid
)(ext2_filsys fs
,
627 extern errcode_t
ext2fs_resize_generic_bitmap(__u32 new_end
,
629 ext2fs_generic_bitmap bmap
);
630 extern errcode_t
ext2fs_resize_inode_bitmap(__u32 new_end
, __u32 new_real_end
,
631 ext2fs_inode_bitmap bmap
);
632 extern errcode_t
ext2fs_resize_block_bitmap(__u32 new_end
, __u32 new_real_end
,
633 ext2fs_block_bitmap bmap
);
636 extern void ext2fs_swap_super(struct ext2_super_block
* super
);
637 extern void ext2fs_swap_group_desc(struct ext2_group_desc
*gdp
);
638 extern void ext2fs_swap_inode(ext2_filsys fs
,struct ext2_inode
*t
,
639 struct ext2_inode
*f
, int hostorder
);
642 extern int ext2fs_inode_has_valid_blocks(struct ext2_inode
*inode
);
645 extern int ext2fs_parse_version_string(const char *ver_string
);
646 extern int ext2fs_get_library_version(const char **ver_string
,
647 const char **date_string
);
649 /* inline functions */
650 extern void ext2fs_mark_super_dirty(ext2_filsys fs
);
651 extern void ext2fs_mark_changed(ext2_filsys fs
);
652 extern int ext2fs_test_changed(ext2_filsys fs
);
653 extern void ext2fs_mark_valid(ext2_filsys fs
);
654 extern void ext2fs_unmark_valid(ext2_filsys fs
);
655 extern int ext2fs_test_valid(ext2_filsys fs
);
656 extern void ext2fs_mark_ib_dirty(ext2_filsys fs
);
657 extern void ext2fs_mark_bb_dirty(ext2_filsys fs
);
658 extern int ext2fs_test_ib_dirty(ext2_filsys fs
);
659 extern int ext2fs_test_bb_dirty(ext2_filsys fs
);
660 extern int ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
);
661 extern int ext2fs_group_of_ino(ext2_filsys fs
, ino_t ino
);
664 * The actual inlined functions definitions themselves...
666 * If NO_INLINE_FUNCS is defined, then we won't try to do inline
669 #if (defined(INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
670 #ifdef INCLUDE_INLINE_FUNCS
671 #define _INLINE_ extern
673 #define _INLINE_ extern __inline__
677 * Mark a filesystem superblock as dirty
679 _INLINE_
void ext2fs_mark_super_dirty(ext2_filsys fs
)
681 fs
->flags
|= EXT2_FLAG_DIRTY
| EXT2_FLAG_CHANGED
;
685 * Mark a filesystem as changed
687 _INLINE_
void ext2fs_mark_changed(ext2_filsys fs
)
689 fs
->flags
|= EXT2_FLAG_CHANGED
;
693 * Check to see if a filesystem has changed
695 _INLINE_
int ext2fs_test_changed(ext2_filsys fs
)
697 return (fs
->flags
& EXT2_FLAG_CHANGED
);
701 * Mark a filesystem as valid
703 _INLINE_
void ext2fs_mark_valid(ext2_filsys fs
)
705 fs
->flags
|= EXT2_FLAG_VALID
;
709 * Mark a filesystem as NOT valid
711 _INLINE_
void ext2fs_unmark_valid(ext2_filsys fs
)
713 fs
->flags
&= ~EXT2_FLAG_VALID
;
717 * Check to see if a filesystem is valid
719 _INLINE_
int ext2fs_test_valid(ext2_filsys fs
)
721 return (fs
->flags
& EXT2_FLAG_VALID
);
725 * Mark the inode bitmap as dirty
727 _INLINE_
void ext2fs_mark_ib_dirty(ext2_filsys fs
)
729 fs
->flags
|= EXT2_FLAG_IB_DIRTY
| EXT2_FLAG_CHANGED
;
733 * Mark the block bitmap as dirty
735 _INLINE_
void ext2fs_mark_bb_dirty(ext2_filsys fs
)
737 fs
->flags
|= EXT2_FLAG_BB_DIRTY
| EXT2_FLAG_CHANGED
;
741 * Check to see if a filesystem's inode bitmap is dirty
743 _INLINE_
int ext2fs_test_ib_dirty(ext2_filsys fs
)
745 return (fs
->flags
& EXT2_FLAG_IB_DIRTY
);
749 * Check to see if a filesystem's block bitmap is dirty
751 _INLINE_
int ext2fs_test_bb_dirty(ext2_filsys fs
)
753 return (fs
->flags
& EXT2_FLAG_BB_DIRTY
);
757 * Return the group # of a block
759 _INLINE_
int ext2fs_group_of_blk(ext2_filsys fs
, blk_t blk
)
761 return (blk
- fs
->super
->s_first_data_block
) /
762 fs
->super
->s_blocks_per_group
;
766 * Return the group # of an inode number
768 _INLINE_
int ext2fs_group_of_ino(ext2_filsys fs
, ino_t ino
)
770 return (ino
- 1) / fs
->super
->s_inodes_per_group
;