vitalif
/
e2fsprogs
mirror of https://github.com/vitalif/e2fsprogs
1
0
Fork 0
Code Issues Releases Wiki Activity

ChangeLog, .del-ext2_fs.h~7a460879: 

Update to latest 2.1.90+diffs version of ext2_fs.h
bitmap-optimize
Theodore Ts'o 1998-03-24 16:09:18 +00:00
parent 674a4ee1e3
commit 89fe431a85
2 changed files with 97 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/linux/ChangeLog
View File

@ -1,3 +1,7 @@
1998-03-23 Theodore Ts'o <tytso@rsts-11.mit.edu>
* ext2_fs.h: Update to latest 2.1.90+diffs version of ext2_fs.h
Sun Oct 19 19:08:03 1997 Theodore Ts'o <tytso@rsts-11.mit.edu>
* ext2_fs.h: #if 0 out the EXT2_DEBUG code, since it's only needed

117
include/linux/ext2_fs.h
View File

@ -31,6 +31,7 @@
* Define EXT2_PREALLOCATE to preallocate data blocks for expanding files
*/
#define EXT2_PREALLOCATE
#define EXT2_DEFAULT_PREALLOC_BLOCKS 8
/*
* The second extended file system version
@ -192,8 +193,18 @@ struct ext2_group_desc
#define EXT2_APPEND_FL 0x00000020 /* writes to file may only append */
#define EXT2_NODUMP_FL 0x00000040 /* do not dump file */
#define EXT2_NOATIME_FL 0x00000080 /* do not update atime */
/* Reserved for compression usage... */
#define EXT2_DIRTY_FL 0x00000100
#define EXT2_COMPRBLK_FL 0x00000200 /* One or more compressed clusters */
#define EXT2_NOCOMP_FL 0x00000400 /* Don't compress */
#define EXT2_ECOMPR_FL 0x00000800 /* Compression error */
/* End compression flags --- maybe not all used */
#define EXT2_BTREE_FL 0x00001000 /* btree format dir */
#define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */
#define EXT2_FL_USER_VISIBLE 0x00001FFF /* User visible flags */
#define EXT2_FL_USER_MODIFIABLE 0x000000FF /* User modifiable flags */
/*
* ioctl commands
*/
@ -257,6 +268,8 @@ struct ext2_inode {
} osd2; /* OS dependent 2 */
};
#define i_size_high i_dir_acl
#if defined(__KERNEL__) || defined(__linux__)
#define i_reserved1 osd1.linux1.l_i_reserved1
#define i_frag osd2.linux2.l_i_frag
@ -369,9 +382,26 @@ struct ext2_super_block {
__u8 s_uuid[16]; /* 128-bit uuid for volume */
char s_volume_name[16]; /* volume name */
char s_last_mounted[64]; /* directory where last mounted */
__u32 s_reserved[206]; /* Padding to the end of the block */
__u32 s_algorithm_usage_bitmap; /* For compression */
/*
* Performance hints. Directory preallocation should only
* happen if the EXT2_COMPAT_PREALLOC flag is on.
*/
__u8 s_prealloc_blocks; /* Nr of blocks to try to preallocate*/
__u8 s_prealloc_dir_blocks; /* Nr to preallocate for dirs */
__u16 s_padding1;
__u32 s_reserved[204]; /* Padding to the end of the block */
};
#ifdef __KERNEL__
#define EXT2_SB(sb) (&((sb)->u.ext2_sb))
#else
/* Assume that user mode programs are passing in an ext2fs superblock, not
* a kernel struct super_block. This will allow us to call the feature-test
* macros from user land. */
#define EXT2_SB(sb) (sb)
#endif
/*
* Codes for operating systems
*/
@ -396,11 +426,27 @@ struct ext2_super_block {
* Feature set definitions
*/
#define EXT2_HAS_COMPAT_FEATURE(sb,mask) \
( EXT2_SB(sb)->s_feature_compat & (mask) )
#define EXT2_HAS_RO_COMPAT_FEATURE(sb,mask) \
( EXT2_SB(sb)->s_feature_ro_compat & (mask) )
#define EXT2_HAS_INCOMPAT_FEATURE(sb,mask) \
( EXT2_SB(sb)->s_feature_incompat & (mask) )
#define EXT2_FEATURE_COMPAT_DIR_PREALLOC 0x0001
#define EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
#define EXT2_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
#define EXT2_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
#define EXT2_FEATURE_INCOMPAT_COMPRESSION 0x0001
#define EXT2_FEATURE_INCOMPAT_FILETYPE 0x0002
#define EXT2_FEATURE_COMPAT_SUPP 0
#define EXT2_FEATURE_INCOMPAT_SUPP 0
#define EXT2_FEATURE_RO_COMPAT_SUPP EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
#define EXT2_FEATURE_INCOMPAT_SUPP EXT2_FEATURE_INCOMPAT_FILETYPE
#define EXT2_FEATURE_RO_COMPAT_SUPP (EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER| \
EXT2_FEATURE_RO_COMPAT_LARGE_FILE| \
EXT2_FEATURE_RO_COMPAT_BTREE_DIR)
/*
* Default values for user and/or group using reserved blocks
@ -420,6 +466,35 @@ struct ext2_dir_entry {
char name[EXT2_NAME_LEN]; /* File name */
};
/*
* The new version of the directory entry. Since EXT2 structures are
* stored in intel byte order, and the name_len field could never be
* bigger than 255 chars, it's safe to reclaim the extra byte for the
* file_type field.
*/
struct ext2_dir_entry_2 {
__u32 inode; /* Inode number */
__u16 rec_len; /* Directory entry length */
__u8 name_len; /* Name length */
__u8 file_type;
char name[EXT2_NAME_LEN]; /* File name */
};
/*
* Ext2 directory file types. Only the low 3 bits are used. The
* other bits are reserved for now.
*/
#define EXT2_FT_UNKNOWN 0
#define EXT2_FT_REG_FILE 1
#define EXT2_FT_DIR 2
#define EXT2_FT_CHRDEV 3
#define EXT2_FT_BLKDEV 4
#define EXT2_FT_FIFO 5
#define EXT2_FT_SOCK 6
#define EXT2_FT_SYMLINK 7
#define EXT2_FT_MAX 8
/*
* EXT2_DIR_PAD defines the directory entries boundaries
*
@ -439,15 +514,9 @@ struct ext2_dir_entry {
* Ok, these declarations are also in <linux/kernel.h> but none of the
* ext2 source programs needs to include it so they are duplicated here.
*/
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
# define NORET_TYPE __volatile__
# define ATTRIB_NORET /**/
# define NORET_AND /**/
#else
# define NORET_TYPE /**/
# define ATTRIB_NORET __attribute__((noreturn))
# define NORET_AND noreturn,
#endif
/* acl.c */
extern int ext2_permission (struct inode *, int);
@ -465,7 +534,7 @@ extern unsigned long ext2_count_free (struct buffer_head *, unsigned);
/* dir.c */
extern int ext2_check_dir_entry (const char *, struct inode *,
struct ext2_dir_entry *, struct buffer_head *,
struct ext2_dir_entry_2 *, struct buffer_head *,
unsigned long);
/* file.c */
@ -473,7 +542,7 @@ extern int ext2_read (struct inode *, struct file *, char *, int);
extern int ext2_write (struct inode *, struct file *, char *, int);
/* fsync.c */
extern int ext2_sync_file (struct inode *, struct file *);
extern int ext2_sync_file (struct file *, struct dentry *);
/* ialloc.c */
extern struct inode * ext2_new_inode (const struct inode *, int, int *);
@ -491,6 +560,7 @@ extern int ext2_getcluster (struct inode * inode, long block);
extern void ext2_read_inode (struct inode *);
extern void ext2_write_inode (struct inode *);
extern void ext2_put_inode (struct inode *);
extern void ext2_delete_inode (struct inode *);
extern int ext2_sync_inode (struct inode *);
extern void ext2_discard_prealloc (struct inode *);
@ -500,17 +570,16 @@ extern int ext2_ioctl (struct inode *, struct file *, unsigned int,
/* namei.c */
extern void ext2_release (struct inode *, struct file *);
extern int ext2_lookup (struct inode *,const char *, int, struct inode **);
extern int ext2_create (struct inode *,const char *, int, int,
struct inode **);
extern int ext2_mkdir (struct inode *, const char *, int, int);
extern int ext2_rmdir (struct inode *, const char *, int);
extern int ext2_unlink (struct inode *, const char *, int);
extern int ext2_symlink (struct inode *, const char *, int, const char *);
extern int ext2_link (struct inode *, struct inode *, const char *, int);
extern int ext2_mknod (struct inode *, const char *, int, int, int);
extern int ext2_rename (struct inode *, const char *, int,
struct inode *, const char *, int, int);
extern int ext2_lookup (struct inode *, struct dentry *);
extern int ext2_create (struct inode *,struct dentry *,int);
extern int ext2_mkdir (struct inode *,struct dentry *,int);
extern int ext2_rmdir (struct inode *,struct dentry *);
extern int ext2_unlink (struct inode *,struct dentry *);
extern int ext2_symlink (struct inode *,struct dentry *,const char *);
extern int ext2_link (struct dentry *, struct inode *, struct dentry *);
extern int ext2_mknod (struct inode *, struct dentry *, int, int);
extern int ext2_rename (struct inode *, struct dentry *,
struct inode *, struct dentry *);
/* super.c */
extern void ext2_error (struct super_block *, const char *, const char *, ...)
@ -525,7 +594,7 @@ extern void ext2_write_super (struct super_block *);
extern int ext2_remount (struct super_block *, int *, char *);
extern struct super_block * ext2_read_super (struct super_block *,void *,int);
extern int init_ext2_fs(void);
extern void ext2_statfs (struct super_block *, struct statfs *, int);
extern int ext2_statfs (struct super_block *, struct statfs *, int);
/* truncate.c */
extern void ext2_truncate (struct inode *);