diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/quota_v1.c | 3 | ||||
| -rw-r--r-- | fs/quota_v2.c | 7 | ||||
| -rw-r--r-- | fs/quotaio_v1.h | 33 | ||||
| -rw-r--r-- | fs/quotaio_v2.h | 79 |
4 files changed, 118 insertions, 4 deletions
diff --git a/fs/quota_v1.c b/fs/quota_v1.c index 3e078ee..b4af1c6 100644 --- a/fs/quota_v1.c +++ b/fs/quota_v1.c @@ -3,13 +3,14 @@ #include <linux/quota.h> #include <linux/quotaops.h> #include <linux/dqblk_v1.h> -#include <linux/quotaio_v1.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> #include <asm/byteorder.h> +#include "quotaio_v1.h" + MODULE_AUTHOR("Jan Kara"); MODULE_DESCRIPTION("Old quota format support"); MODULE_LICENSE("GPL"); diff --git a/fs/quota_v2.c b/fs/quota_v2.c index 51c4717..a21d1a7 100644 --- a/fs/quota_v2.c +++ b/fs/quota_v2.c @@ -6,7 +6,6 @@ #include <linux/fs.h> #include <linux/mount.h> #include <linux/dqblk_v2.h> -#include <linux/quotaio_v2.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> @@ -15,6 +14,8 @@ #include <asm/byteorder.h> +#include "quotaio_v2.h" + MODULE_AUTHOR("Jan Kara"); MODULE_DESCRIPTION("Quota format v2 support"); MODULE_LICENSE("GPL"); @@ -129,8 +130,8 @@ static void mem2diskdqb(struct v2_disk_dqblk *d, struct mem_dqblk *m, qid_t id) d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit); d->dqb_curinodes = cpu_to_le32(m->dqb_curinodes); d->dqb_itime = cpu_to_le64(m->dqb_itime); - d->dqb_bhardlimit = cpu_to_le32(v2_qbtos(m->dqb_bhardlimit)); - d->dqb_bsoftlimit = cpu_to_le32(v2_qbtos(m->dqb_bsoftlimit)); + d->dqb_bhardlimit = cpu_to_le32(v2_stoqb(m->dqb_bhardlimit)); + d->dqb_bsoftlimit = cpu_to_le32(v2_stoqb(m->dqb_bsoftlimit)); d->dqb_curspace = cpu_to_le64(m->dqb_curspace); d->dqb_btime = cpu_to_le64(m->dqb_btime); d->dqb_id = cpu_to_le32(id); diff --git a/fs/quotaio_v1.h b/fs/quotaio_v1.h new file mode 100644 index 0000000..746654b --- /dev/null +++ b/fs/quotaio_v1.h @@ -0,0 +1,33 @@ +#ifndef _LINUX_QUOTAIO_V1_H +#define _LINUX_QUOTAIO_V1_H + +#include <linux/types.h> + +/* + * The following constants define the amount of time given a user + * before the soft limits are treated as hard limits (usually resulting + * in an allocation failure). The timer is started when the user crosses + * their soft limit, it is reset when they go below their soft limit. + */ +#define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */ +#define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */ + +/* + * The following structure defines the format of the disk quota file + * (as it appears on disk) - the file is an array of these structures + * indexed by user or group number. + */ +struct v1_disk_dqblk { + __u32 dqb_bhardlimit; /* absolute limit on disk blks alloc */ + __u32 dqb_bsoftlimit; /* preferred limit on disk blks */ + __u32 dqb_curblocks; /* current block count */ + __u32 dqb_ihardlimit; /* absolute limit on allocated inodes */ + __u32 dqb_isoftlimit; /* preferred inode limit */ + __u32 dqb_curinodes; /* current # allocated inodes */ + time_t dqb_btime; /* time limit for excessive disk use */ + time_t dqb_itime; /* time limit for excessive inode use */ +}; + +#define v1_dqoff(UID) ((loff_t)((UID) * sizeof (struct v1_disk_dqblk))) + +#endif /* _LINUX_QUOTAIO_V1_H */ diff --git a/fs/quotaio_v2.h b/fs/quotaio_v2.h new file mode 100644 index 0000000..303d7cb --- /dev/null +++ b/fs/quotaio_v2.h @@ -0,0 +1,79 @@ +/* + * 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 */\ +} + +/* + * 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 */ +}; + +/* + * Here are header structures as written on disk and their in-memory copies + */ +/* First generic header */ +struct v2_disk_dqheader { + __le32 dqh_magic; /* Magic number identifying file */ + __le32 dqh_version; /* File version */ +}; + +/* 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 */ +}; + +/* + * Structure of header of block with quota structures. It is padded to 16 bytes so + * there will be space for exactly 21 quota-entries in a block + */ +struct v2_disk_dqdbheader { + __le32 dqdh_next_free; /* Number of next block with free entry */ + __le32 dqdh_prev_free; /* Number of previous block with free entry */ + __le16 dqdh_entries; /* Number of valid entries in block */ + __le16 dqdh_pad1; + __le32 dqdh_pad2; +}; + +#define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */ +#define V2_DQBLKSIZE_BITS 10 +#define V2_DQBLKSIZE (1 << V2_DQBLKSIZE_BITS) /* Size of block with quota structures */ +#define V2_DQTREEOFF 1 /* Offset of tree in file in blocks */ +#define V2_DQTREEDEPTH 4 /* Depth of quota tree */ +#define V2_DQSTRINBLK ((V2_DQBLKSIZE - sizeof(struct v2_disk_dqdbheader)) / sizeof(struct v2_disk_dqblk)) /* Number of entries in one blocks */ + +#endif /* _LINUX_QUOTAIO_V2_H */ |
