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author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2009-01-08 02:22:55 (GMT) |
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committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2009-01-08 02:22:55 (GMT) |
commit | 6206aa8b2b9a45b4cf3ee31b7209b014be349fd9 (patch) | |
tree | 72c4223a2cc21bf055948eadb3b314ed0568ae9d /fs/quotaio_v2.h | |
parent | 95f8e302c04c0b0c6de35ab399a5551605eeb006 (diff) | |
parent | 9e42d0cf5020aaf217433cad1a224745241d212a (diff) | |
download | linux-6206aa8b2b9a45b4cf3ee31b7209b014be349fd9.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/quotaio_v2.h')
-rw-r--r-- | fs/quotaio_v2.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/fs/quotaio_v2.h b/fs/quotaio_v2.h new file mode 100644 index 0000000..530fe58 --- /dev/null +++ b/fs/quotaio_v2.h @@ -0,0 +1,60 @@ +/* + * Definitions of structures for vfsv0 quota format + */ + +#ifndef _LINUX_QUOTAIO_V2_H +#define _LINUX_QUOTAIO_V2_H + +#include <linux/types.h> +#include <linux/quota.h> + +/* + * Definitions of magics and versions of current quota files + */ +#define V2_INITQMAGICS {\ + 0xd9c01f11, /* USRQUOTA */\ + 0xd9c01927 /* GRPQUOTA */\ +} + +#define V2_INITQVERSIONS {\ + 0, /* USRQUOTA */\ + 0 /* GRPQUOTA */\ +} + +/* First generic header */ +struct v2_disk_dqheader { + __le32 dqh_magic; /* Magic number identifying file */ + __le32 dqh_version; /* File version */ +}; + +/* + * The following structure defines the format of the disk quota file + * (as it appears on disk) - the file is a radix tree whose leaves point + * to blocks of these structures. + */ +struct v2_disk_dqblk { + __le32 dqb_id; /* id this quota applies to */ + __le32 dqb_ihardlimit; /* absolute limit on allocated inodes */ + __le32 dqb_isoftlimit; /* preferred inode limit */ + __le32 dqb_curinodes; /* current # allocated inodes */ + __le32 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */ + __le32 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */ + __le64 dqb_curspace; /* current space occupied (in bytes) */ + __le64 dqb_btime; /* time limit for excessive disk use */ + __le64 dqb_itime; /* time limit for excessive inode use */ +}; + +/* Header with type and version specific information */ +struct v2_disk_dqinfo { + __le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */ + __le32 dqi_igrace; /* Time before inode soft limit becomes hard limit */ + __le32 dqi_flags; /* Flags for quotafile (DQF_*) */ + __le32 dqi_blocks; /* Number of blocks in file */ + __le32 dqi_free_blk; /* Number of first free block in the list */ + __le32 dqi_free_entry; /* Number of block with at least one free entry */ +}; + +#define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */ +#define V2_DQBLKSIZE_BITS 10 /* Size of leaf block in tree */ + +#endif /* _LINUX_QUOTAIO_V2_H */ |