2 * Definitions of structures for vfsv0 quota format
5 #ifndef _LINUX_QUOTAIO_V2_H
6 #define _LINUX_QUOTAIO_V2_H
8 #include <linux/types.h>
9 #include <linux/quota.h>
12 * Definitions of magics and versions of current quota files
14 #define V2_INITQMAGICS {\
15 0xd9c01f11, /* USRQUOTA */\
16 0xd9c01927 /* GRPQUOTA */\
19 #define V2_INITQVERSIONS {\
24 /* First generic header */
25 struct v2_disk_dqheader
{
26 __le32 dqh_magic
; /* Magic number identifying file */
27 __le32 dqh_version
; /* File version */
31 * The following structure defines the format of the disk quota file
32 * (as it appears on disk) - the file is a radix tree whose leaves point
33 * to blocks of these structures.
35 struct v2_disk_dqblk
{
36 __le32 dqb_id
; /* id this quota applies to */
37 __le32 dqb_ihardlimit
; /* absolute limit on allocated inodes */
38 __le32 dqb_isoftlimit
; /* preferred inode limit */
39 __le32 dqb_curinodes
; /* current # allocated inodes */
40 __le32 dqb_bhardlimit
; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */
41 __le32 dqb_bsoftlimit
; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */
42 __le64 dqb_curspace
; /* current space occupied (in bytes) */
43 __le64 dqb_btime
; /* time limit for excessive disk use */
44 __le64 dqb_itime
; /* time limit for excessive inode use */
47 /* Header with type and version specific information */
48 struct v2_disk_dqinfo
{
49 __le32 dqi_bgrace
; /* Time before block soft limit becomes hard limit */
50 __le32 dqi_igrace
; /* Time before inode soft limit becomes hard limit */
51 __le32 dqi_flags
; /* Flags for quotafile (DQF_*) */
52 __le32 dqi_blocks
; /* Number of blocks in file */
53 __le32 dqi_free_blk
; /* Number of first free block in the list */
54 __le32 dqi_free_entry
; /* Number of block with at least one free entry */
57 #define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */
58 #define V2_DQBLKSIZE_BITS 10 /* Size of leaf block in tree */
60 #endif /* _LINUX_QUOTAIO_V2_H */
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