ReactOS 0.4.15-dev-8146-gdc0ed6d
ext3_fs.h
Go to the documentation of this file.
1/*
2 * linux/include/linux/ext3_fs.h
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *
9 * from
10 *
11 * linux/include/linux/minix_fs.h
12 *
13 * Copyright (C) 1991, 1992 Linus Torvalds
14 */
15
16#ifndef _LINUX_EXT3_FS_H
17#define _LINUX_EXT3_FS_H
18
19#include <linux/module.h>
20#include <linux/fs.h>
21#include <linux/magic.h>
22
23/*
24 * The second extended filesystem constants/structures
25 */
26
27/*
28 * Define EXT3FS_DEBUG to produce debug messages
29 */
30#undef EXT3FS_DEBUG
31
32/*
33 * Define EXT3_RESERVATION to reserve data blocks for expanding files
34 */
35#define EXT3_DEFAULT_RESERVE_BLOCKS 8
36/*max window size: 1024(direct blocks) + 3([t,d]indirect blocks) */
37#define EXT3_MAX_RESERVE_BLOCKS 1027
38#define EXT3_RESERVE_WINDOW_NOT_ALLOCATED 0
39
40/*
41 * Debug code
42 */
43#ifdef EXT3FS_DEBUG
44#define ext3_debug(f, a...) \
45 do { \
46 printk (KERN_DEBUG "EXT3-fs DEBUG (%s, %d): %s:", \
47 __FILE__, __LINE__, __FUNCTION__); \
48 printk (KERN_DEBUG f, ## a); \
49 } while (0)
50#else
51#define ext3_debug
52#endif
53
54/*
55 * Special inodes numbers
56 */
57#define EXT3_BAD_INO 1 /* Bad blocks inode */
58#define EXT3_ROOT_INO 2 /* Root inode */
59#define EXT3_BOOT_LOADER_INO 5 /* Boot loader inode */
60#define EXT3_UNDEL_DIR_INO 6 /* Undelete directory inode */
61#define EXT3_RESIZE_INO 7 /* Reserved group descriptors inode */
62#define EXT3_JOURNAL_INO 8 /* Journal inode */
63
64/* First non-reserved inode for old ext3 filesystems */
65#define EXT3_GOOD_OLD_FIRST_INO 11
66
67/*
68 * Maximal count of links to a file
69 */
70#define EXT3_LINK_MAX 32000
71
72/*
73 * Macro-instructions used to manage several block sizes
74 */
75#define EXT3_MIN_BLOCK_SIZE 1024
76#define EXT3_MAX_BLOCK_SIZE 65536
77#define EXT3_MIN_BLOCK_LOG_SIZE 10
78#ifdef __KERNEL__
79# define EXT3_BLOCK_SIZE(s) ((s)->s_blocksize)
80#else
81# define EXT3_BLOCK_SIZE(s) (EXT3_MIN_BLOCK_SIZE << (s)->s_log_block_size)
82#endif
83#define EXT3_ADDR_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (__u32))
84#ifdef __KERNEL__
85# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_blocksize_bits)
86#else
87# define EXT3_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
88#endif
89#ifdef __KERNEL__
90#define EXT3_ADDR_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_addr_per_block_bits)
91#define EXT3_INODE_SIZE(s) (EXT3_SB(s)->s_inode_size)
92#define EXT3_FIRST_INO(s) (EXT3_SB(s)->s_first_ino)
93#else
94#define EXT3_INODE_SIZE(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
95 EXT3_GOOD_OLD_INODE_SIZE : \
96 (s)->s_inode_size)
97#define EXT3_FIRST_INO(s) (((s)->s_rev_level == EXT3_GOOD_OLD_REV) ? \
98 EXT3_GOOD_OLD_FIRST_INO : \
99 (s)->s_first_ino)
100#endif
101
102/*
103 * Macro-instructions used to manage fragments
104 */
105#define EXT3_MIN_FRAG_SIZE 1024
106#define EXT3_MAX_FRAG_SIZE 4096
107#define EXT3_MIN_FRAG_LOG_SIZE 10
108#ifdef __KERNEL__
109# define EXT3_FRAG_SIZE(s) (EXT3_SB(s)->s_frag_size)
110# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_SB(s)->s_frags_per_block)
111#else
112# define EXT3_FRAG_SIZE(s) (EXT3_MIN_FRAG_SIZE << (s)->s_log_frag_size)
113# define EXT3_FRAGS_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / EXT3_FRAG_SIZE(s))
114#endif
115
116/*
117 * Structure of a blocks group descriptor
118 */
120{
121 __le32 bg_block_bitmap; /* Blocks bitmap block */
122 __le32 bg_inode_bitmap; /* Inodes bitmap block */
123 __le32 bg_inode_table; /* Inodes table block */
124 __le16 bg_free_blocks_count; /* Free blocks count */
125 __le16 bg_free_inodes_count; /* Free inodes count */
126 __le16 bg_used_dirs_count; /* Directories count */
129};
130
131/*
132 * Structure of a blocks group descriptor
133 */
135{
136 __le32 bg_block_bitmap; /* Blocks bitmap block */
137 __le32 bg_inode_bitmap; /* Inodes bitmap block */
138 __le32 bg_inode_table; /* Inodes table block */
139 __le16 bg_free_blocks_count;/* Free blocks count */
140 __le16 bg_free_inodes_count;/* Free inodes count */
141 __le16 bg_used_dirs_count; /* Directories count */
142 __le16 bg_flags; /* EXT4_BG_flags (INODE_UNINIT, etc) */
143 __u32 bg_reserved[2]; /* Likely block/inode bitmap checksum */
144 __le16 bg_itable_unused; /* Unused inodes count */
145 __le16 bg_checksum; /* crc16(sb_uuid+group+desc) */
146 __le32 bg_block_bitmap_hi; /* Blocks bitmap block MSB */
147 __le32 bg_inode_bitmap_hi; /* Inodes bitmap block MSB */
148 __le32 bg_inode_table_hi; /* Inodes table block MSB */
149 __le16 bg_free_blocks_count_hi;/* Free blocks count MSB */
150 __le16 bg_free_inodes_count_hi;/* Free inodes count MSB */
151 __le16 bg_used_dirs_count_hi; /* Directories count MSB */
152 __le16 bg_itable_unused_hi; /* Unused inodes count MSB */
154};
155
156/*
157 * Structure of a flex block group info
158 */
159
163};
164
165#define EXT4_BG_INODE_UNINIT 0x0001 /* Inode table/bitmap not in use */
166#define EXT4_BG_BLOCK_UNINIT 0x0002 /* Block bitmap not in use */
167#define EXT4_BG_INODE_ZEROED 0x0004 /* On-disk itable initialized to zero */
168
169#define EXT4_MIN_BLOCK_SIZE 1024
170#define EXT4_MIN_DESC_SIZE 32
171#define EXT4_MIN_DESC_SIZE_64BIT 64
172#define EXT4_MAX_DESC_SIZE EXT4_MIN_BLOCK_SIZE
173
174#define EXT4_DESC_SIZE(s) (EXT3_SB(s)->s_desc_size)
175
176/*
177 * Macro-instructions used to manage group descriptors
178 */
179#ifdef __KERNEL__
180# define EXT3_BLOCKS_PER_GROUP(s) (EXT3_SB(s)->s_blocks_per_group)
181# define EXT3_DESC_PER_BLOCK(s) (EXT3_SB(s)->s_desc_per_block)
182# define EXT3_INODES_PER_GROUP(s) (EXT3_SB(s)->s_inodes_per_group)
183# define EXT3_DESC_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_desc_per_block_bits)
184# define EXT4_BLOCKS_PER_GROUP(s) (EXT3_SB(s)->s_blocks_per_group)
185# define EXT4_DESC_PER_BLOCK(s) (EXT3_SB(s)->s_desc_per_block)
186# define EXT4_INODES_PER_GROUP(s) (EXT3_SB(s)->s_inodes_per_group)
187# define EXT4_DESC_PER_BLOCK_BITS(s) (EXT3_SB(s)->s_desc_per_block_bits)
188#else
189# define EXT3_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
190# define EXT3_DESC_PER_BLOCK(s) (EXT3_BLOCK_SIZE(s) / sizeof (struct ext3_group_desc))
191# define EXT3_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
192#endif
193
194/*
195 * Constants relative to the data blocks
196 */
197#define EXT3_NDIR_BLOCKS 12
198#define EXT3_IND_BLOCK EXT3_NDIR_BLOCKS
199#define EXT3_DIND_BLOCK (EXT3_IND_BLOCK + 1)
200#define EXT3_TIND_BLOCK (EXT3_DIND_BLOCK + 1)
201#define EXT3_N_BLOCKS (EXT3_TIND_BLOCK + 1)
202
203/*
204 * Inode flags
205 */
206#define EXT3_SECRM_FL 0x00000001 /* Secure deletion */
207#define EXT3_UNRM_FL 0x00000002 /* Undelete */
208#define EXT3_COMPR_FL 0x00000004 /* Compress file */
209#define EXT3_SYNC_FL 0x00000008 /* Synchronous updates */
210#define EXT3_IMMUTABLE_FL 0x00000010 /* Immutable file */
211#define EXT3_APPEND_FL 0x00000020 /* writes to file may only append */
212#define EXT3_NODUMP_FL 0x00000040 /* do not dump file */
213#define EXT3_NOATIME_FL 0x00000080 /* do not update atime */
214/* Reserved for compression usage... */
215#define EXT3_DIRTY_FL 0x00000100
216#define EXT3_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
217#define EXT3_NOCOMPR_FL 0x00000400 /* Don't compress */
218#define EXT3_ECOMPR_FL 0x00000800 /* Compression error */
219/* End compression flags --- maybe not all used */
220#define EXT3_INDEX_FL 0x00001000 /* hash-indexed directory */
221#define EXT3_IMAGIC_FL 0x00002000 /* AFS directory */
222#define EXT3_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
223#define EXT3_NOTAIL_FL 0x00008000 /* file tail should not be merged */
224#define EXT3_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
225#define EXT3_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
226#define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */
227
228#define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */
229#define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */
230
231/*
232 * Inode dynamic state flags
233 */
234#define EXT3_STATE_JDATA 0x00000001 /* journaled data exists */
235#define EXT3_STATE_NEW 0x00000002 /* inode is newly created */
236#define EXT3_STATE_XATTR 0x00000004 /* has in-inode xattrs */
237
238
239/*
240 * Ext4 Inode flags
241 */
242#define EXT4_SECRM_FL 0x00000001 /* Secure deletion */
243#define EXT4_UNRM_FL 0x00000002 /* Undelete */
244#define EXT4_COMPR_FL 0x00000004 /* Compress file */
245#define EXT4_SYNC_FL 0x00000008 /* Synchronous updates */
246#define EXT4_IMMUTABLE_FL 0x00000010 /* Immutable file */
247#define EXT4_APPEND_FL 0x00000020 /* writes to file may only append */
248#define EXT4_NODUMP_FL 0x00000040 /* do not dump file */
249#define EXT4_NOATIME_FL 0x00000080 /* do not update atime */
250/* Reserved for compression usage... */
251#define EXT4_DIRTY_FL 0x00000100
252#define EXT4_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
253#define EXT4_NOCOMPR_FL 0x00000400 /* Don't compress */
254#define EXT4_ECOMPR_FL 0x00000800 /* Compression error */
255/* End compression flags --- maybe not all used */
256#define EXT4_INDEX_FL 0x00001000 /* hash-indexed directory */
257#define EXT4_IMAGIC_FL 0x00002000 /* AFS directory */
258#define EXT4_JOURNAL_DATA_FL 0x00004000 /* file data should be journaled */
259#define EXT4_NOTAIL_FL 0x00008000 /* file tail should not be merged */
260#define EXT4_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
261#define EXT4_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/
262#define EXT4_HUGE_FILE_FL 0x00040000 /* Set to each huge file */
263#define EXT4_EXTENTS_FL 0x00080000 /* Inode uses extents */
264#define EXT4_EXT_MIGRATE 0x00100000 /* Inode is migrating */
265#define EXT4_RESERVED_FL 0x80000000 /* reserved for ext4 lib */
266
267#define EXT4_FL_USER_VISIBLE 0x000BDFFF /* User visible flags */
268#define EXT4_FL_USER_MODIFIABLE 0x000B80FF /* User modifiable flags */
269
270/* Used to pass group descriptor data when online resize is done */
272 __u32 group; /* Group number for this data */
273 __u32 block_bitmap; /* Absolute block number of block bitmap */
274 __u32 inode_bitmap; /* Absolute block number of inode bitmap */
275 __u32 inode_table; /* Absolute block number of inode table start */
276 __u32 blocks_count; /* Total number of blocks in this group */
277 __u16 reserved_blocks; /* Number of reserved blocks in this group */
279};
280
281/* The struct ext3_new_group_input in kernel space, with free_blocks_count */
291};
292
293
294/*
295 * ioctl commands
296 */
297#define EXT3_IOC_GETFLAGS FS_IOC_GETFLAGS
298#define EXT3_IOC_SETFLAGS FS_IOC_SETFLAGS
299#define EXT3_IOC_GETVERSION _IOR('f', 3, long)
300#define EXT3_IOC_SETVERSION _IOW('f', 4, long)
301#define EXT3_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
302#define EXT3_IOC_GROUP_ADD _IOW('f', 8,struct ext3_new_group_input)
303#define EXT3_IOC_GETVERSION_OLD FS_IOC_GETVERSION
304#define EXT3_IOC_SETVERSION_OLD FS_IOC_SETVERSION
305#ifdef CONFIG_JBD_DEBUG
306#define EXT3_IOC_WAIT_FOR_READONLY _IOR('f', 99, long)
307#endif
308#define EXT3_IOC_GETRSVSZ _IOR('f', 5, long)
309#define EXT3_IOC_SETRSVSZ _IOW('f', 6, long)
310
311/*
312 * ioctl commands in 32 bit emulation
313 */
314#define EXT3_IOC32_GETFLAGS FS_IOC32_GETFLAGS
315#define EXT3_IOC32_SETFLAGS FS_IOC32_SETFLAGS
316#define EXT3_IOC32_GETVERSION _IOR('f', 3, int)
317#define EXT3_IOC32_SETVERSION _IOW('f', 4, int)
318#define EXT3_IOC32_GETRSVSZ _IOR('f', 5, int)
319#define EXT3_IOC32_SETRSVSZ _IOW('f', 6, int)
320#define EXT3_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int)
321#ifdef CONFIG_JBD_DEBUG
322#define EXT3_IOC32_WAIT_FOR_READONLY _IOR('f', 99, int)
323#endif
324#define EXT3_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION
325#define EXT3_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
326
327
328/*
329 * Mount options
330 */
332 unsigned long s_mount_opt;
335 unsigned long s_commit_interval;
336#ifdef CONFIG_QUOTA
337 int s_jquota_fmt;
338 char *s_qf_names[MAXQUOTAS];
339#endif
340};
341
342/*
343 * Structure of an inode on the disk
344 */
346 __le16 i_mode; /* File mode */
347 __le16 i_uid; /* Low 16 bits of Owner Uid */
348 __le32 i_size; /* Size in bytes */
349 __le32 i_atime; /* Access time */
350 __le32 i_ctime; /* Creation time */
351 __le32 i_mtime; /* Modification time */
352 __le32 i_dtime; /* Deletion Time */
353 __le16 i_gid; /* Low 16 bits of Group Id */
354 __le16 i_links_count; /* Links count */
355 __le32 i_blocks; /* Blocks count */
356 __le32 i_flags; /* File flags */
357 union {
358 struct {
361 struct {
364 struct {
367 } osd1; /* OS dependent 1 */
368 __le32 i_block[EXT3_N_BLOCKS];/* Pointers to blocks */
369 __le32 i_generation; /* File version (for NFS) */
370 __le32 i_file_acl_lo; /* File ACL */
372 __le32 i_obso_faddr; /* Obsoleted fragment address */
373 union {
374 struct {
375 __le16 l_i_blocks_high; /* were l_i_reserved1 */
377 __le16 l_i_uid_high; /* these 2 fields */
378 __le16 l_i_gid_high; /* were reserved2[0] */
381 struct {
382 __le16 h_i_reserved1; /* Obsoleted fragment number/size which are removed in ext4 */
388 struct {
389 __le16 h_i_reserved1; /* Obsoleted fragment number/size which are removed in ext4 */
393 } osd2; /* OS dependent 2 */
396 __le32 i_ctime_extra; /* extra Change time (nsec << 2 | epoch) */
397 __le32 i_mtime_extra; /* extra Modification time(nsec << 2 | epoch) */
398 __le32 i_atime_extra; /* extra Access time (nsec << 2 | epoch) */
399 __le32 i_crtime; /* File Creation time */
400 __le32 i_crtime_extra; /* extra FileCreationtime (nsec << 2 | epoch) */
401 __le32 i_version_hi; /* high 32 bits for 64-bit version */
402};
403
404#define i_disk_version osd1.linux1.l_i_version
405
406#if defined(__KERNEL__) || defined(__linux__)
407#define i_reserved1 osd1.linux1.l_i_reserved1
408#define i_file_acl_high osd2.linux2.l_i_file_acl_high
409#define i_blocks_high osd2.linux2.l_i_blocks_high
410#define i_uid_low i_uid
411#define i_gid_low i_gid
412#define i_uid_high osd2.linux2.l_i_uid_high
413#define i_gid_high osd2.linux2.l_i_gid_high
414#define i_reserved2 osd2.linux2.l_i_reserved2
415#endif
416/*
417 * File system states
418 */
419#define EXT3_VALID_FS 0x0001 /* Unmounted cleanly */
420#define EXT3_ERROR_FS 0x0002 /* Errors detected */
421#define EXT3_ORPHAN_FS 0x0004 /* Orphans being recovered */
422
423/*
424 * Mount flags
425 */
426#define EXT3_MOUNT_CHECK 0x00001 /* Do mount-time checks */
427#define EXT3_MOUNT_OLDALLOC 0x00002 /* Don't use the new Orlov allocator */
428#define EXT3_MOUNT_GRPID 0x00004 /* Create files with directory's group */
429#define EXT3_MOUNT_DEBUG 0x00008 /* Some debugging messages */
430#define EXT3_MOUNT_ERRORS_CONT 0x00010 /* Continue on errors */
431#define EXT3_MOUNT_ERRORS_RO 0x00020 /* Remount fs ro on errors */
432#define EXT3_MOUNT_ERRORS_PANIC 0x00040 /* Panic on errors */
433#define EXT3_MOUNT_MINIX_DF 0x00080 /* Mimics the Minix statfs */
434#define EXT3_MOUNT_NOLOAD 0x00100 /* Don't use existing journal*/
435#define EXT3_MOUNT_ABORT 0x00200 /* Fatal error detected */
436#define EXT3_MOUNT_DATA_FLAGS 0x00C00 /* Mode for data writes: */
437#define EXT3_MOUNT_JOURNAL_DATA 0x00400 /* Write data to journal */
438#define EXT3_MOUNT_ORDERED_DATA 0x00800 /* Flush data before commit */
439#define EXT3_MOUNT_WRITEBACK_DATA 0x00C00 /* No data ordering */
440#define EXT3_MOUNT_UPDATE_JOURNAL 0x01000 /* Update the journal format */
441#define EXT3_MOUNT_NO_UID32 0x02000 /* Disable 32-bit UIDs */
442#define EXT3_MOUNT_XATTR_USER 0x04000 /* Extended user attributes */
443#define EXT3_MOUNT_POSIX_ACL 0x08000 /* POSIX Access Control Lists */
444#define EXT3_MOUNT_RESERVATION 0x10000 /* Preallocation */
445#define EXT3_MOUNT_BARRIER 0x20000 /* Use block barriers */
446#define EXT3_MOUNT_NOBH 0x40000 /* No bufferheads */
447#define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */
448#define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */
449#define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */
450
451/* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
452#ifndef _LINUX_EXT2_FS_H
453#define clear_opt(o, opt) o &= ~EXT3_MOUNT_##opt
454#define set_opt(o, opt) o |= EXT3_MOUNT_##opt
455#define test_opt(sb, opt) (EXT3_SB(sb)->s_mount_opt & \
456 EXT3_MOUNT_##opt)
457#else
458#define EXT2_MOUNT_NOLOAD EXT3_MOUNT_NOLOAD
459#define EXT2_MOUNT_ABORT EXT3_MOUNT_ABORT
460#define EXT2_MOUNT_DATA_FLAGS EXT3_MOUNT_DATA_FLAGS
461#endif
462
463#define ext3_set_bit ext2_set_bit
464#define ext3_set_bit_atomic ext2_set_bit_atomic
465#define ext3_clear_bit ext2_clear_bit
466#define ext3_clear_bit_atomic ext2_clear_bit_atomic
467#define ext3_test_bit ext2_test_bit
468#define ext3_find_first_zero_bit ext2_find_first_zero_bit
469#define ext3_find_next_zero_bit ext2_find_next_zero_bit
470
471/*
472 * Maximal mount counts between two filesystem checks
473 */
474#define EXT3_DFL_MAX_MNT_COUNT 20 /* Allow 20 mounts */
475#define EXT3_DFL_CHECKINTERVAL 0 /* Don't use interval check */
476
477/*
478 * Behaviour when detecting errors
479 */
480#define EXT3_ERRORS_CONTINUE 1 /* Continue execution */
481#define EXT3_ERRORS_RO 2 /* Remount fs read-only */
482#define EXT3_ERRORS_PANIC 3 /* Panic */
483#define EXT3_ERRORS_DEFAULT EXT3_ERRORS_CONTINUE
484
485/*
486 * Structure of the super block
487 */
489 /*00*/
490 __le32 s_inodes_count; /* Inodes count */
491 __le32 s_blocks_count; /* Blocks count */
492 __le32 s_r_blocks_count; /* Reserved blocks count */
493 __le32 s_free_blocks_count; /* Free blocks count */
494 /*10*/
495 __le32 s_free_inodes_count; /* Free inodes count */
496 __le32 s_first_data_block; /* First Data Block */
497 __le32 s_log_block_size; /* Block size */
498 __le32 s_obso_log_frag_size; /* Obsoleted fragment size */
499 /*20*/
500 __le32 s_blocks_per_group; /* # Blocks per group */
501 __le32 s_obso_frags_per_group; /* Obsoleted fragments per group */
502 __le32 s_inodes_per_group; /* # Inodes per group */
503 __le32 s_mtime; /* Mount time */
504 /*30*/
505 __le32 s_wtime; /* Write time */
506 __le16 s_mnt_count; /* Mount count */
507 __le16 s_max_mnt_count; /* Maximal mount count */
508 __le16 s_magic; /* Magic signature */
509 __le16 s_state; /* File system state */
510 __le16 s_errors; /* Behaviour when detecting errors */
511 __le16 s_minor_rev_level; /* minor revision level */
512 /*40*/
513 __le32 s_lastcheck; /* time of last check */
514 __le32 s_checkinterval; /* max. time between checks */
516 __le32 s_rev_level; /* Revision level */
517 /*50*/
518 __le16 s_def_resuid; /* Default uid for reserved blocks */
519 __le16 s_def_resgid; /* Default gid for reserved blocks */
520 /*
521 * These fields are for EXT4_DYNAMIC_REV superblocks only.
522 *
523 * Note: the difference between the compatible feature set and
524 * the incompatible feature set is that if there is a bit set
525 * in the incompatible feature set that the kernel doesn't
526 * know about, it should refuse to mount the filesystem.
527 *
528 * e2fsck's requirements are more strict; if it doesn't know
529 * about a feature in either the compatible or incompatible
530 * feature set, it must abort and not try to meddle with
531 * things it doesn't understand...
532 */
533 __le32 s_first_ino; /* First non-reserved inode */
534 __le16 s_inode_size; /* size of inode structure */
535 __le16 s_block_group_nr; /* block group # of this superblock */
536 __le32 s_feature_compat; /* compatible feature set */
537 /*60*/
538 __le32 s_feature_incompat; /* incompatible feature set */
539 __le32 s_feature_ro_compat; /* readonly-compatible feature set */
540 /*68*/
541 __u8 s_uuid[16]; /* 128-bit uuid for volume */
542 /*78*/
543 char s_volume_name[16]; /* volume name */
544 /*88*/
545 char s_last_mounted[64]; /* directory where last mounted */
546 /*C8*/
547 __le32 s_algorithm_usage_bitmap; /* For compression */
548 /*
549 * Performance hints. Directory preallocation should only
550 * happen if the EXT4_FEATURE_COMPAT_DIR_PREALLOC flag is on.
551 */
552 __u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
553 __u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
554 __le16 s_reserved_gdt_blocks; /* Per group desc for online growth */
555 /*
556 * Journaling support valid if EXT4_FEATURE_COMPAT_HAS_JOURNAL set.
557 */
558 /*D0*/
559 __u8 s_journal_uuid[16]; /* uuid of journal superblock */
560 /*E0*/
561 __le32 s_journal_inum; /* inode number of journal file */
562 __le32 s_journal_dev; /* device number of journal file */
563 __le32 s_last_orphan; /* start of list of inodes to delete */
564 __le32 s_hash_seed[4]; /* HTREE hash seed */
565 __u8 s_def_hash_version; /* Default hash version to use */
567 __le16 s_desc_size; /* size of group descriptor */
568 /*100*/
570 __le32 s_first_meta_bg; /* First metablock block group */
571 __le32 s_mkfs_time; /* When the filesystem was created */
572 __le32 s_jnl_blocks[17]; /* Backup of the journal inode */
573 /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
574 /*150*/
575 __le32 s_blocks_count_hi; /* Blocks count */
576 __le32 s_r_blocks_count_hi; /* Reserved blocks count */
577 __le32 s_free_blocks_count_hi; /* Free blocks count */
578 __le16 s_min_extra_isize; /* All inodes have at least # bytes */
579 __le16 s_want_extra_isize; /* New inodes should reserve # bytes */
580 __le32 s_flags; /* Miscellaneous flags */
581 __le16 s_raid_stride; /* RAID stride */
582 __le16 s_mmp_interval; /* # seconds to wait in MMP checking */
583 __le64 s_mmp_block; /* Block for multi-mount protection */
584 __le32 s_raid_stripe_width; /* blocks on all data disks (N*stride)*/
585 __u8 s_log_groups_per_flex; /* FLEX_BG group size */
588 __u32 s_reserved[162]; /* Padding to the end of the block */
589};
590
591#ifdef __KERNEL__
592#include <linux/ext3_fs_i.h>
593#include <linux/ext3_fs_sb.h>
594static inline struct ext3_sb_info * EXT3_SB(struct super_block *sb)
595{
596 return sb->s_fs_info;
597}
598static inline struct inode *EXT3_I(struct inode *inode)
599{
600 return inode;
601}
602
603static inline int ext3_valid_inum(struct super_block *sb, unsigned long ino)
604{
605 return ino == EXT3_ROOT_INO ||
606 ino == EXT3_JOURNAL_INO ||
607 ino == EXT3_RESIZE_INO ||
608 (ino >= EXT3_FIRST_INO(sb) &&
609 ino <= le32_to_cpu(EXT3_SB(sb)->s_es->s_inodes_count));
610}
611#else
612/* Assume that user mode programs are passing in an ext3fs superblock, not
613 * a kernel struct super_block. This will allow us to call the feature-test
614 * macros from user land. */
615#define EXT3_SB(sb) (sb)
616#endif
617
618
619#define NEXT_ORPHAN(inode) EXT3_I(inode)->i_dtime
620
621/*
622 * Codes for operating systems
623 */
624#define EXT3_OS_LINUX 0
625#define EXT3_OS_HURD 1
626#define EXT3_OS_MASIX 2
627#define EXT3_OS_FREEBSD 3
628#define EXT3_OS_LITES 4
629
630/*
631 * Revision levels
632 */
633#define EXT3_GOOD_OLD_REV 0 /* The good old (original) format */
634#define EXT3_DYNAMIC_REV 1 /* V2 format w/ dynamic inode sizes */
635
636#define EXT3_CURRENT_REV EXT3_GOOD_OLD_REV
637#define EXT3_MAX_SUPP_REV EXT3_DYNAMIC_REV
638
639#define EXT3_GOOD_OLD_INODE_SIZE 128
640
641/*
642 * Feature set definitions
643 */
644
645#define EXT3_HAS_COMPAT_FEATURE(sb,mask) \
646 ( EXT3_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask) )
647#define EXT3_HAS_RO_COMPAT_FEATURE(sb,mask) \
648 ( EXT3_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask) )
649#define EXT3_HAS_INCOMPAT_FEATURE(sb,mask) \
650 ( EXT3_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask) )
651#define EXT3_SET_COMPAT_FEATURE(sb,mask) \
652 EXT3_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
653#define EXT3_SET_RO_COMPAT_FEATURE(sb,mask) \
654 EXT3_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
655#define EXT3_SET_INCOMPAT_FEATURE(sb,mask) \
656 EXT3_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
657#define EXT3_CLEAR_COMPAT_FEATURE(sb,mask) \
658 EXT3_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
659#define EXT3_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
660 EXT3_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
661#define EXT3_CLEAR_INCOMPAT_FEATURE(sb,mask) \
662 EXT3_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
663
664#define EXT3_FEATURE_COMPAT_DIR_PREALLOC 0x0001
665#define EXT3_FEATURE_COMPAT_IMAGIC_INODES 0x0002
666#define EXT3_FEATURE_COMPAT_HAS_JOURNAL 0x0004
667#define EXT3_FEATURE_COMPAT_EXT_ATTR 0x0008
668#define EXT3_FEATURE_COMPAT_RESIZE_INODE 0x0010
669#define EXT3_FEATURE_COMPAT_DIR_INDEX 0x0020
670
671#define EXT3_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
672#define EXT3_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
673#define EXT3_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
674#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
675#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
676#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
677
678#define EXT3_FEATURE_INCOMPAT_COMPRESSION 0x0001
679#define EXT3_FEATURE_INCOMPAT_FILETYPE 0x0002
680#define EXT3_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
681#define EXT3_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
682#define EXT3_FEATURE_INCOMPAT_META_BG 0x0010
683#define EXT3_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */
684#define EXT3_FEATURE_INCOMPAT_MMP 0x0100
685#define EXT3_FEATURE_INCOMPAT_DIRDATA 0x1000
686
687#define EXT3_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
688
689#define EXT4_FEATURE_COMPAT_DIR_PREALLOC 0x0001
690#define EXT4_FEATURE_COMPAT_IMAGIC_INODES 0x0002
691#define EXT4_FEATURE_COMPAT_HAS_JOURNAL 0x0004
692#define EXT4_FEATURE_COMPAT_EXT_ATTR 0x0008
693#define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010
694#define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020
695
696#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
697#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
698#define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
699#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
700#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
701#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
702#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
703
704#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
705#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
706#define EXT4_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
707#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
708#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010
709#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */
710#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
711#define EXT4_FEATURE_INCOMPAT_MMP 0x0100
712#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
713#define EXT4_FEATURE_INCOMPAT_DIRDATA 0x1000 /* used by Lustre - ldiskfs */
714#define EXT4_FEATURE_INCOMPAT_BG_USE_META_CSUM 0x2000 /* use crc32c for bg */
715#define EXT4_FEATURE_INCOMPAT_LARGEDIR 0x4000 /* >2GB or 3-lvl htree */
716#define EXT4_FEATURE_INCOMPAT_INLINEDATA 0x8000 /* data in inode */
717
718#define EXT4_FEATURE_INCOMPAT_SUPP ( \
719 EXT4_FEATURE_INCOMPAT_FILETYPE| \
720 EXT4_FEATURE_INCOMPAT_RECOVER| \
721 EXT4_FEATURE_INCOMPAT_META_BG| \
722 EXT4_FEATURE_INCOMPAT_EXTENTS| \
723 EXT4_FEATURE_INCOMPAT_FLEX_BG)
724#define EXT4_FEATURE_RO_COMPAT_SUPP ( \
725 EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
726 EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \
727 EXT4_FEATURE_RO_COMPAT_GDT_CSUM| \
728 EXT4_FEATURE_RO_COMPAT_DIR_NLINK | \
729 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE | \
730 EXT4_FEATURE_RO_COMPAT_BTREE_DIR | \
731 EXT4_FEATURE_RO_COMPAT_HUGE_FILE)
732
733#define EXT4_BG_INODE_UNINIT 0x0001 /* Inode table/bitmap not in use */
734#define EXT4_BG_BLOCK_UNINIT 0x0002 /* Block bitmap not in use */
735#define EXT4_BG_INODE_ZEROED 0x0004 /* On-disk itable initialized to zero */
736
737/*
738 * Default values for user and/or group using reserved blocks
739 */
740#define EXT3_DEF_RESUID 0
741#define EXT3_DEF_RESGID 0
742
743/*
744 * Default mount options
745 */
746#define EXT3_DEFM_DEBUG 0x0001
747#define EXT3_DEFM_BSDGROUPS 0x0002
748#define EXT3_DEFM_XATTR_USER 0x0004
749#define EXT3_DEFM_ACL 0x0008
750#define EXT3_DEFM_UID16 0x0010
751#define EXT3_DEFM_JMODE 0x0060
752#define EXT3_DEFM_JMODE_DATA 0x0020
753#define EXT3_DEFM_JMODE_ORDERED 0x0040
754#define EXT3_DEFM_JMODE_WBACK 0x0060
755
756/*
757 * Structure of a directory entry
758 */
759#define EXT3_NAME_LEN 255
760
762 __le32 inode; /* Inode number */
763 __le16 rec_len; /* Directory entry length */
764 __le16 name_len; /* Name length */
765 char name[EXT3_NAME_LEN]; /* File name */
766};
767
768/*
769 * The new version of the directory entry. Since EXT3 structures are
770 * stored in intel byte order, and the name_len field could never be
771 * bigger than 255 chars, it's safe to reclaim the extra byte for the
772 * file_type field.
773 */
775 __le32 inode; /* Inode number */
776 __le16 rec_len; /* Directory entry length */
777 __u8 name_len; /* Name length */
779 char name[EXT3_NAME_LEN]; /* File name */
780};
781
782/*
783 * Ext3 directory file types. Only the low 3 bits are used. The
784 * other bits are reserved for now.
785 */
786#define EXT3_FT_UNKNOWN 0
787#define EXT3_FT_REG_FILE 1
788#define EXT3_FT_DIR 2
789#define EXT3_FT_CHRDEV 3
790#define EXT3_FT_BLKDEV 4
791#define EXT3_FT_FIFO 5
792#define EXT3_FT_SOCK 6
793#define EXT3_FT_SYMLINK 7
794
795#define EXT3_FT_MAX 8
796#define EXT3_FT_MASK 0xf
797
798#if EXT3_FT_MAX > EXT3_FT_MASK
799#error "conflicting EXT3_FT_MAX and EXT3_FT_MASK"
800#endif
801
802#define EXT3_LUFID_MAGIC 0xAD200907UL
803
804#pragma pack(1)
806 __u32 edp_magic; /* EXT3_LUFID_MAGIC */
807 char edp_len; /* size of edp_data in bytes */
808 char edp_data[0]; /* packed array of data */
810#pragma pack()
811
812static inline unsigned char *ext3_dentry_get_data(struct super_block *sb,
813 struct ext3_dentry_param* p)
814
815{
817 return NULL;
818 if (p && p->edp_magic == EXT3_LUFID_MAGIC)
819 return &p->edp_len;
820 else
821 return NULL;
822}
823
824/*
825 * Compute the total directory entry data length.
826 * This includes the filename and an implicit NUL terminator (always present),
827 * and optional extensions. Each extension has a bit set in the high 4 bits of
828 * de->file_type, and the extension length is the first byte in each entry.
829 */
830
831static inline int ext3_get_dirent_data_len(struct ext3_dir_entry_2 *de)
832{
833 char *len = de->name + de->name_len + 1 /* NUL terminator */;
834 int dlen = 0;
835 __u8 extra_data_flags = (de->file_type & ~EXT3_FT_MASK) >> 4;
836
837 while (extra_data_flags) {
838 if (extra_data_flags & 1) {
839 dlen += *len + (dlen == 0);
840 len += *len;
841 }
842 extra_data_flags >>= 1;
843 }
844 return dlen;
845}
846
847/*
848 * d_type has 4 unused bits, so it can hold four types data. these different
849 * type of data (e.g. lustre data, high 32 bits of 64-bit inode number) can be
850 * stored, in flag order, after file-name in ext3 dirent.
851*/
852/*
853 * this flag is added to d_type if ext3 dirent has extra data after
854 * filename. this data length is variable and length is stored in first byte
855 * of data. data start after filename NUL byte.
856 * This is used by Lustre FS.
857 */
858
859#define EXT3_DIRENT_LUFID 0x10
860/*
861 * EXT3_DIR_PAD defines the directory entries boundaries
862 *
863 * NOTE: It must be a multiple of 4
864 */
865#define EXT3_DIR_PAD 4
866#define EXT3_DIR_ROUND (EXT3_DIR_PAD - 1)
867#define EXT3_DIR_REC_LEN(len) (((len) + 8 + EXT3_DIR_ROUND) & \
868 ~EXT3_DIR_ROUND)
869#define EXT3_MAX_REC_LEN ((1<<16)-1)
870
871static inline unsigned ext3_rec_len_from_disk(__le16 dlen)
872{
873 unsigned len = le16_to_cpu(dlen);
874
875 if (len == EXT3_MAX_REC_LEN || len == 0)
876 return 1 << 16;
877 return len;
878}
879
880static inline __le16 ext3_rec_len_to_disk(unsigned len)
881{
882 if (len == (1 << 16))
884 else if (len > (1 << 16))
885 BUG();
886 return cpu_to_le16(len);
887}
888
889/*
890 * Hash Tree Directory indexing
891 * (c) Daniel Phillips, 2001
892 */
893
894#ifdef EXT2_HTREE_INDEX
895#define is_dx(dir) (EXT3_HAS_COMPAT_FEATURE(dir->i_sb, \
896 EXT3_FEATURE_COMPAT_DIR_INDEX) && \
897 (EXT3_I(dir)->i_flags & EXT3_INDEX_FL))
898#define EXT3_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT3_LINK_MAX)
899#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
900#else
901#define is_dx(dir) 0
902#define EXT3_DIR_LINK_MAX(dir) ((dir)->i_nlink >= EXT3_LINK_MAX)
903#define EXT3_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2)
904#endif
905
906/* Legal values for the dx_root hash_version field: */
907
908#define DX_HASH_LEGACY 0
909#define DX_HASH_HALF_MD4 1
910#define DX_HASH_TEA 2
911#define DX_HASH_LEGACY_UNSIGNED 3
912#define DX_HASH_HALF_MD4_UNSIGNED 4
913#define DX_HASH_TEA_UNSIGNED 5
914
915
916#ifdef __KERNEL__
917
918/* hash info structure used by the directory hash */
919struct dx_hash_info
920{
921 u32 hash;
922 u32 minor_hash;
923 int hash_version;
924 u32 *seed;
925};
926
927#define EXT3_HTREE_EOF 0x7fffffff
928
929/* 32 and 64 bit signed EOF for dx directories */
930#define EXT4_HTREE_EOF_32BIT ((1UL << (32 - 1)) - 1)
931#define EXT4_HTREE_EOF_64BIT ((1ULL << (64 - 1)) - 1
932
933/*
934 * Control parameters used by ext3_htree_next_block
935 */
936#define HASH_NB_ALWAYS 1
937
938
939/*
940 * Describe an inode's exact location on disk and in memory
941 */
942struct ext3_iloc
943{
944 struct buffer_head *bh;
945 unsigned long offset;
946 unsigned long block_group;
947};
948
949static inline struct ext3_inode *ext3_raw_inode(struct ext3_iloc *iloc)
950{
951 return (struct ext3_inode *) (iloc->bh->b_data + iloc->offset);
952}
953
954/*
955 * This structure is stuffed into the struct file's private_data field
956 * for directories. It is where we put information so that we can do
957 * readdir operations in hash tree order.
958 */
959struct dir_private_info {
960 struct rb_root root;
961 struct rb_node *curr_node;
962 struct fname *extra_fname;
963 loff_t last_pos;
964 __u32 curr_hash;
965 __u32 curr_minor_hash;
966 __u32 next_hash;
967};
968
969/* calculate the first block number of the group */
970static inline ext3_fsblk_t
971ext3_group_first_block_no(struct super_block *sb, unsigned long group_no)
972{
973 return group_no * (ext3_fsblk_t)EXT3_BLOCKS_PER_GROUP(sb) +
974 le32_to_cpu(EXT3_SB(sb)->s_es->s_first_data_block);
975}
976
977/*
978 * Special error return code only used by dx_probe() and its callers.
979 */
980#define ERR_BAD_DX_DIR -75000
981
982/*
983 * This structure will be used for multiple mount protection. It will be
984 * written into the block number saved in the s_mmp_block field in the
985 * superblock. Programs that check MMP should assume that if
986 * SEQ_FSCK (or any unknown code above SEQ_MAX) is present then it is NOT safe
987 * to use the filesystem, regardless of how old the timestamp is.
988 */
989#define EXT3_MMP_MAGIC 0x004D4D50U /* ASCII for MMP */
990#define EXT3_MMP_SEQ_CLEAN 0xFF4D4D50U /* mmp_seq value for clean unmount */
991#define EXT3_MMP_SEQ_FSCK 0xE24D4D50U /* mmp_seq value when being fscked */
992#define EXT3_MMP_SEQ_MAX 0xE24D4D4FU /* maximum valid mmp_seq value */
993
994struct mmp_struct {
995 __le32 mmp_magic;
996 __le32 mmp_seq;
997 __le64 mmp_time;
998 char mmp_nodename[64];
999 char mmp_bdevname[32];
1000 __le16 mmp_check_interval;
1001 __le16 mmp_pad1;
1002 __le32 mmp_pad2[227];
1003};
1004
1005/*
1006 * Default interval in seconds to update the MMP sequence number.
1007 */
1008#define EXT3_MMP_UPDATE_INTERVAL 1
1009
1010/*
1011 * Minimum interval for MMP checking in seconds.
1012 */
1013#define EXT3_MMP_MIN_CHECK_INTERVAL 5
1014
1015/*
1016 * Indicates that ctime should not be updated in ext3_xattr_set_handle()
1017 */
1018#ifndef XATTR_NO_CTIME
1019#define XATTR_NO_CTIME 0x80
1020#endif
1021
1022/*
1023 * NOTE! unlike strncmp, ext3_match returns 1 for success, 0 for failure.
1024 *
1025 * `len <= EXT3_NAME_LEN' is guaranteed by caller.
1026 * `de != NULL' is guaranteed by caller.
1027 */
1028static inline int ext3_match (int len, const char * const name,
1029 struct ext3_dir_entry_2 * de)
1030{
1031 if (len != de->name_len)
1032 return 0;
1033 if (!de->inode)
1034 return 0;
1035 return !_strnicmp(name, de->name, len);
1036}
1037
1038#endif /* __KERNEL__ */
1039#endif /* _LINUX_EXT3_FS_H */
long uid_t
Definition: various.h:8
u16 __u16
Definition: btrfs.h:18
u8 __u8
Definition: btrfs.h:17
ULONG32 u32
Definition: btrfs.h:14
u32 __u32
Definition: btrfs.h:19
#define NULL
Definition: types.h:112
UINT gid_t
Definition: types.h:89
#define __attribute__(x)
Definition: wpp_private.h:207
#define _strnicmp(_String1, _String2, _MaxCount)
Definition: compat.h:23
superblock * sb
Definition: btrfs.c:4261
#define __le64
Definition: types.h:45
#define __le16
Definition: types.h:43
#define __le32
Definition: types.h:44
#define BUG()
Definition: types.h:119
unsigned __int64 loff_t
Definition: types.h:84
#define EXT3_FEATURE_INCOMPAT_DIRDATA
Definition: ext3_fs.h:685
#define EXT3_BLOCKS_PER_GROUP(s)
Definition: ext3_fs.h:189
static __le16 ext3_rec_len_to_disk(unsigned len)
Definition: ext3_fs.h:880
#define EXT3_N_BLOCKS
Definition: ext3_fs.h:201
#define EXT3_SB(sb)
Definition: ext3_fs.h:615
#define EXT3_ROOT_INO
Definition: ext3_fs.h:58
#define EXT3_NAME_LEN
Definition: ext3_fs.h:759
#define EXT3_LUFID_MAGIC
Definition: ext3_fs.h:802
#define EXT3_HAS_INCOMPAT_FEATURE(sb, mask)
Definition: ext3_fs.h:649
#define EXT3_MAX_REC_LEN
Definition: ext3_fs.h:869
#define EXT3_RESIZE_INO
Definition: ext3_fs.h:61
static unsigned char * ext3_dentry_get_data(struct super_block *sb, struct ext3_dentry_param *p)
Definition: ext3_fs.h:812
#define EXT3_JOURNAL_INO
Definition: ext3_fs.h:62
static unsigned ext3_rec_len_from_disk(__le16 dlen)
Definition: ext3_fs.h:871
#define EXT3_FIRST_INO(s)
Definition: ext3_fs.h:97
static int ext3_get_dirent_data_len(struct ext3_dir_entry_2 *de)
Definition: ext3_fs.h:831
unsigned long long ext3_fsblk_t
Definition: ext3_fs_i.h:26
GLfloat GLfloat p
Definition: glext.h:8902
GLenum GLsizei len
Definition: glext.h:6722
GLuint GLenum GLsizei GLsizei GLint GLint GLboolean packed
Definition: glext.h:9271
GLintptr offset
Definition: glext.h:5920
#define le16_to_cpu
Definition: module.h:151
#define le32_to_cpu
Definition: module.h:149
#define cpu_to_le16
Definition: module.h:150
char edp_data[0]
Definition: ext3_fs.h:808
Definition: ext3_fs.h:774
char name[EXT3_NAME_LEN]
Definition: ext3_fs.h:779
__le32 inode
Definition: ext3_fs.h:775
__u8 name_len
Definition: ext3_fs.h:777
__le16 rec_len
Definition: ext3_fs.h:776
__u8 file_type
Definition: ext3_fs.h:778
Definition: ext3_fs.h:761
__le16 name_len
Definition: ext3_fs.h:764
__le16 rec_len
Definition: ext3_fs.h:763
__le32 inode
Definition: ext3_fs.h:762
__le16 bg_used_dirs_count
Definition: ext3_fs.h:126
__u16 bg_pad
Definition: ext3_fs.h:127
__le16 bg_free_inodes_count
Definition: ext3_fs.h:125
__le16 bg_free_blocks_count
Definition: ext3_fs.h:124
__le32 bg_reserved[3]
Definition: ext3_fs.h:128
__le32 bg_inode_bitmap
Definition: ext3_fs.h:122
__le32 bg_block_bitmap
Definition: ext3_fs.h:121
__le32 bg_inode_table
Definition: ext3_fs.h:123
struct ext3_inode::@706::@710 masix1
union ext3_inode::@707 osd2
__u32 m_i_reserved1
Definition: ext3_fs.h:365
__le32 i_atime_extra
Definition: ext3_fs.h:398
__le32 i_size
Definition: ext3_fs.h:348
__le32 i_generation
Definition: ext3_fs.h:369
__le16 i_gid
Definition: ext3_fs.h:353
__le16 l_i_gid_high
Definition: ext3_fs.h:378
__le16 l_i_uid_high
Definition: ext3_fs.h:377
__le32 i_crtime_extra
Definition: ext3_fs.h:400
__le16 i_uid
Definition: ext3_fs.h:347
struct ext3_inode::@706::@708 linux1
__le32 i_mtime_extra
Definition: ext3_fs.h:397
__le32 i_block[EXT3_N_BLOCKS]
Definition: ext3_fs.h:368
__le32 l_i_version
Definition: ext3_fs.h:359
__le32 i_ctime
Definition: ext3_fs.h:350
__le16 i_mode
Definition: ext3_fs.h:346
__le32 i_flags
Definition: ext3_fs.h:356
__le32 i_ctime_extra
Definition: ext3_fs.h:396
__u32 l_i_reserved2
Definition: ext3_fs.h:379
__u16 h_i_mode_high
Definition: ext3_fs.h:383
__le16 i_pad1
Definition: ext3_fs.h:395
__le32 i_version_hi
Definition: ext3_fs.h:401
__u32 h_i_translator
Definition: ext3_fs.h:362
__le16 i_extra_isize
Definition: ext3_fs.h:394
__u16 h_i_gid_high
Definition: ext3_fs.h:385
__le16 m_i_file_acl_high
Definition: ext3_fs.h:390
__le16 l_i_file_acl_high
Definition: ext3_fs.h:376
__le32 i_file_acl_lo
Definition: ext3_fs.h:370
struct ext3_inode::@706::@709 hurd1
__le32 i_crtime
Definition: ext3_fs.h:399
__le16 l_i_blocks_high
Definition: ext3_fs.h:375
struct ext3_inode::@707::@713 masix2
__u16 h_i_uid_high
Definition: ext3_fs.h:384
__le16 h_i_reserved1
Definition: ext3_fs.h:382
__le32 i_blocks
Definition: ext3_fs.h:355
__le32 i_atime
Definition: ext3_fs.h:349
__u32 h_i_author
Definition: ext3_fs.h:386
__le32 i_mtime
Definition: ext3_fs.h:351
union ext3_inode::@706 osd1
__le32 i_size_high
Definition: ext3_fs.h:371
__le32 i_obso_faddr
Definition: ext3_fs.h:372
struct ext3_inode::@707::@711 linux2
__le16 i_links_count
Definition: ext3_fs.h:354
__le32 i_dtime
Definition: ext3_fs.h:352
struct ext3_inode::@707::@712 hurd2
__u32 m_i_reserved2[2]
Definition: ext3_fs.h:391
unsigned long s_mount_opt
Definition: ext3_fs.h:332
unsigned long s_commit_interval
Definition: ext3_fs.h:335
__u32 free_blocks_count
Definition: ext3_fs.h:290
__u16 reserved_blocks
Definition: ext3_fs.h:288
__le32 s_r_blocks_count_hi
Definition: ext3_fs.h:576
__le16 s_def_resuid
Definition: ext3_fs.h:518
__le32 s_inodes_count
Definition: ext3_fs.h:490
__u8 s_prealloc_blocks
Definition: ext3_fs.h:552
__le32 s_mtime
Definition: ext3_fs.h:503
__le16 s_max_mnt_count
Definition: ext3_fs.h:507
__le32 s_algorithm_usage_bitmap
Definition: ext3_fs.h:547
__le32 s_wtime
Definition: ext3_fs.h:505
__le16 s_mnt_count
Definition: ext3_fs.h:506
__le32 s_obso_log_frag_size
Definition: ext3_fs.h:498
__u8 s_reserved_char_pad
Definition: ext3_fs.h:566
__le32 s_jnl_blocks[17]
Definition: ext3_fs.h:572
__u8 s_reserved_char_pad2
Definition: ext3_fs.h:586
__le32 s_journal_inum
Definition: ext3_fs.h:561
__le32 s_blocks_count
Definition: ext3_fs.h:491
__le32 s_rev_level
Definition: ext3_fs.h:516
__le32 s_first_ino
Definition: ext3_fs.h:533
__le32 s_first_data_block
Definition: ext3_fs.h:496
__le32 s_feature_incompat
Definition: ext3_fs.h:538
__le32 s_obso_frags_per_group
Definition: ext3_fs.h:501
__le32 s_raid_stripe_width
Definition: ext3_fs.h:584
__u8 s_log_groups_per_flex
Definition: ext3_fs.h:585
__le32 s_last_orphan
Definition: ext3_fs.h:563
__le16 s_inode_size
Definition: ext3_fs.h:534
__le32 s_inodes_per_group
Definition: ext3_fs.h:502
__le16 s_errors
Definition: ext3_fs.h:510
__le32 s_feature_ro_compat
Definition: ext3_fs.h:539
__le16 s_min_extra_isize
Definition: ext3_fs.h:578
__le16 s_magic
Definition: ext3_fs.h:508
__le32 s_free_blocks_count
Definition: ext3_fs.h:493
__le32 s_blocks_count_hi
Definition: ext3_fs.h:575
__le32 s_default_mount_opts
Definition: ext3_fs.h:569
__le32 s_creator_os
Definition: ext3_fs.h:515
__le16 s_state
Definition: ext3_fs.h:509
__u32 s_reserved[162]
Definition: ext3_fs.h:588
__le16 s_minor_rev_level
Definition: ext3_fs.h:511
__le32 s_first_meta_bg
Definition: ext3_fs.h:570
__le16 s_want_extra_isize
Definition: ext3_fs.h:579
__le32 s_mkfs_time
Definition: ext3_fs.h:571
__le64 s_mmp_block
Definition: ext3_fs.h:583
__le16 s_reserved_pad
Definition: ext3_fs.h:587
__le32 s_lastcheck
Definition: ext3_fs.h:513
__le16 s_block_group_nr
Definition: ext3_fs.h:535
__le16 s_raid_stride
Definition: ext3_fs.h:581
__le16 s_reserved_gdt_blocks
Definition: ext3_fs.h:554
__le32 s_journal_dev
Definition: ext3_fs.h:562
__le32 s_feature_compat
Definition: ext3_fs.h:536
__le32 s_checkinterval
Definition: ext3_fs.h:514
__le32 s_log_block_size
Definition: ext3_fs.h:497
char s_last_mounted[64]
Definition: ext3_fs.h:545
__le32 s_r_blocks_count
Definition: ext3_fs.h:492
__le32 s_hash_seed[4]
Definition: ext3_fs.h:564
__le32 s_blocks_per_group
Definition: ext3_fs.h:500
__le16 s_mmp_interval
Definition: ext3_fs.h:582
__le32 s_flags
Definition: ext3_fs.h:580
__u8 s_prealloc_dir_blocks
Definition: ext3_fs.h:553
__le16 s_def_resgid
Definition: ext3_fs.h:519
__u8 s_def_hash_version
Definition: ext3_fs.h:565
__u8 s_journal_uuid[16]
Definition: ext3_fs.h:559
__le32 s_free_blocks_count_hi
Definition: ext3_fs.h:577
__le16 s_desc_size
Definition: ext3_fs.h:567
__u8 s_uuid[16]
Definition: ext3_fs.h:541
__le32 s_free_inodes_count
Definition: ext3_fs.h:495
char s_volume_name[16]
Definition: ext3_fs.h:543
__le16 bg_flags
Definition: ext3_fs.h:142
__le32 bg_block_bitmap
Definition: ext3_fs.h:136
__le16 bg_itable_unused
Definition: ext3_fs.h:144
__le16 bg_used_dirs_count
Definition: ext3_fs.h:141
__le32 bg_inode_table_hi
Definition: ext3_fs.h:148
__le16 bg_free_inodes_count
Definition: ext3_fs.h:140
__le16 bg_checksum
Definition: ext3_fs.h:145
__le16 bg_used_dirs_count_hi
Definition: ext3_fs.h:151
__u32 bg_reserved2[3]
Definition: ext3_fs.h:153
__le32 bg_inode_bitmap
Definition: ext3_fs.h:137
__u32 bg_reserved[2]
Definition: ext3_fs.h:143
__le16 bg_free_inodes_count_hi
Definition: ext3_fs.h:150
__le32 bg_block_bitmap_hi
Definition: ext3_fs.h:146
__le32 bg_inode_table
Definition: ext3_fs.h:138
__le32 bg_inode_bitmap_hi
Definition: ext3_fs.h:147
__le16 bg_free_blocks_count
Definition: ext3_fs.h:139
__le16 bg_itable_unused_hi
Definition: ext3_fs.h:152
__le16 bg_free_blocks_count_hi
Definition: ext3_fs.h:149
__u32 free_inodes
Definition: ext3_fs.h:161
__u32 free_blocks
Definition: ext3_fs.h:162
Definition: _hash_fun.h:40
Definition: fs.h:78
Definition: name.c:39
Definition: rbtree.h:98
Definition: fs.h:64