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 3e078eee5644..b4af1c69ad16 100644 --- a/fs/quota_v1.c +++ b/fs/quota_v1.c | |||
@@ -3,13 +3,14 @@ | |||
3 | #include <linux/quota.h> | 3 | #include <linux/quota.h> |
4 | #include <linux/quotaops.h> | 4 | #include <linux/quotaops.h> |
5 | #include <linux/dqblk_v1.h> | 5 | #include <linux/dqblk_v1.h> |
6 | #include <linux/quotaio_v1.h> | ||
7 | #include <linux/kernel.h> | 6 | #include <linux/kernel.h> |
8 | #include <linux/init.h> | 7 | #include <linux/init.h> |
9 | #include <linux/module.h> | 8 | #include <linux/module.h> |
10 | 9 | ||
11 | #include <asm/byteorder.h> | 10 | #include <asm/byteorder.h> |
12 | 11 | ||
12 | #include "quotaio_v1.h" | ||
13 | |||
13 | MODULE_AUTHOR("Jan Kara"); | 14 | MODULE_AUTHOR("Jan Kara"); |
14 | MODULE_DESCRIPTION("Old quota format support"); | 15 | MODULE_DESCRIPTION("Old quota format support"); |
15 | MODULE_LICENSE("GPL"); | 16 | MODULE_LICENSE("GPL"); |
diff --git a/fs/quota_v2.c b/fs/quota_v2.c index 51c4717f7c6a..a21d1a7c356a 100644 --- a/fs/quota_v2.c +++ b/fs/quota_v2.c | |||
@@ -6,7 +6,6 @@ | |||
6 | #include <linux/fs.h> | 6 | #include <linux/fs.h> |
7 | #include <linux/mount.h> | 7 | #include <linux/mount.h> |
8 | #include <linux/dqblk_v2.h> | 8 | #include <linux/dqblk_v2.h> |
9 | #include <linux/quotaio_v2.h> | ||
10 | #include <linux/kernel.h> | 9 | #include <linux/kernel.h> |
11 | #include <linux/init.h> | 10 | #include <linux/init.h> |
12 | #include <linux/module.h> | 11 | #include <linux/module.h> |
@@ -15,6 +14,8 @@ | |||
15 | 14 | ||
16 | #include <asm/byteorder.h> | 15 | #include <asm/byteorder.h> |
17 | 16 | ||
17 | #include "quotaio_v2.h" | ||
18 | |||
18 | MODULE_AUTHOR("Jan Kara"); | 19 | MODULE_AUTHOR("Jan Kara"); |
19 | MODULE_DESCRIPTION("Quota format v2 support"); | 20 | MODULE_DESCRIPTION("Quota format v2 support"); |
20 | MODULE_LICENSE("GPL"); | 21 | MODULE_LICENSE("GPL"); |
@@ -129,8 +130,8 @@ static void mem2diskdqb(struct v2_disk_dqblk *d, struct mem_dqblk *m, qid_t id) | |||
129 | d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit); | 130 | d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit); |
130 | d->dqb_curinodes = cpu_to_le32(m->dqb_curinodes); | 131 | d->dqb_curinodes = cpu_to_le32(m->dqb_curinodes); |
131 | d->dqb_itime = cpu_to_le64(m->dqb_itime); | 132 | d->dqb_itime = cpu_to_le64(m->dqb_itime); |
132 | d->dqb_bhardlimit = cpu_to_le32(v2_qbtos(m->dqb_bhardlimit)); | 133 | d->dqb_bhardlimit = cpu_to_le32(v2_stoqb(m->dqb_bhardlimit)); |
133 | d->dqb_bsoftlimit = cpu_to_le32(v2_qbtos(m->dqb_bsoftlimit)); | 134 | d->dqb_bsoftlimit = cpu_to_le32(v2_stoqb(m->dqb_bsoftlimit)); |
134 | d->dqb_curspace = cpu_to_le64(m->dqb_curspace); | 135 | d->dqb_curspace = cpu_to_le64(m->dqb_curspace); |
135 | d->dqb_btime = cpu_to_le64(m->dqb_btime); | 136 | d->dqb_btime = cpu_to_le64(m->dqb_btime); |
136 | d->dqb_id = cpu_to_le32(id); | 137 | d->dqb_id = cpu_to_le32(id); |
diff --git a/fs/quotaio_v1.h b/fs/quotaio_v1.h new file mode 100644 index 000000000000..746654b5de70 --- /dev/null +++ b/fs/quotaio_v1.h | |||
@@ -0,0 +1,33 @@ | |||
1 | #ifndef _LINUX_QUOTAIO_V1_H | ||
2 | #define _LINUX_QUOTAIO_V1_H | ||
3 | |||
4 | #include <linux/types.h> | ||
5 | |||
6 | /* | ||
7 | * The following constants define the amount of time given a user | ||
8 | * before the soft limits are treated as hard limits (usually resulting | ||
9 | * in an allocation failure). The timer is started when the user crosses | ||
10 | * their soft limit, it is reset when they go below their soft limit. | ||
11 | */ | ||
12 | #define MAX_IQ_TIME 604800 /* (7*24*60*60) 1 week */ | ||
13 | #define MAX_DQ_TIME 604800 /* (7*24*60*60) 1 week */ | ||
14 | |||
15 | /* | ||
16 | * The following structure defines the format of the disk quota file | ||
17 | * (as it appears on disk) - the file is an array of these structures | ||
18 | * indexed by user or group number. | ||
19 | */ | ||
20 | struct v1_disk_dqblk { | ||
21 | __u32 dqb_bhardlimit; /* absolute limit on disk blks alloc */ | ||
22 | __u32 dqb_bsoftlimit; /* preferred limit on disk blks */ | ||
23 | __u32 dqb_curblocks; /* current block count */ | ||
24 | __u32 dqb_ihardlimit; /* absolute limit on allocated inodes */ | ||
25 | __u32 dqb_isoftlimit; /* preferred inode limit */ | ||
26 | __u32 dqb_curinodes; /* current # allocated inodes */ | ||
27 | time_t dqb_btime; /* time limit for excessive disk use */ | ||
28 | time_t dqb_itime; /* time limit for excessive inode use */ | ||
29 | }; | ||
30 | |||
31 | #define v1_dqoff(UID) ((loff_t)((UID) * sizeof (struct v1_disk_dqblk))) | ||
32 | |||
33 | #endif /* _LINUX_QUOTAIO_V1_H */ | ||
diff --git a/fs/quotaio_v2.h b/fs/quotaio_v2.h new file mode 100644 index 000000000000..303d7cbe30d4 --- /dev/null +++ b/fs/quotaio_v2.h | |||
@@ -0,0 +1,79 @@ | |||
1 | /* | ||
2 | * Definitions of structures for vfsv0 quota format | ||
3 | */ | ||
4 | |||
5 | #ifndef _LINUX_QUOTAIO_V2_H | ||
6 | #define _LINUX_QUOTAIO_V2_H | ||
7 | |||
8 | #include <linux/types.h> | ||
9 | #include <linux/quota.h> | ||
10 | |||
11 | /* | ||
12 | * Definitions of magics and versions of current quota files | ||
13 | */ | ||
14 | #define V2_INITQMAGICS {\ | ||
15 | 0xd9c01f11, /* USRQUOTA */\ | ||
16 | 0xd9c01927 /* GRPQUOTA */\ | ||
17 | } | ||
18 | |||
19 | #define V2_INITQVERSIONS {\ | ||
20 | 0, /* USRQUOTA */\ | ||
21 | 0 /* GRPQUOTA */\ | ||
22 | } | ||
23 | |||
24 | /* | ||
25 | * The following structure defines the format of the disk quota file | ||
26 | * (as it appears on disk) - the file is a radix tree whose leaves point | ||
27 | * to blocks of these structures. | ||
28 | */ | ||
29 | struct v2_disk_dqblk { | ||
30 | __le32 dqb_id; /* id this quota applies to */ | ||
31 | __le32 dqb_ihardlimit; /* absolute limit on allocated inodes */ | ||
32 | __le32 dqb_isoftlimit; /* preferred inode limit */ | ||
33 | __le32 dqb_curinodes; /* current # allocated inodes */ | ||
34 | __le32 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */ | ||
35 | __le32 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */ | ||
36 | __le64 dqb_curspace; /* current space occupied (in bytes) */ | ||
37 | __le64 dqb_btime; /* time limit for excessive disk use */ | ||
38 | __le64 dqb_itime; /* time limit for excessive inode use */ | ||
39 | }; | ||
40 | |||
41 | /* | ||
42 | * Here are header structures as written on disk and their in-memory copies | ||
43 | */ | ||
44 | /* First generic header */ | ||
45 | struct v2_disk_dqheader { | ||
46 | __le32 dqh_magic; /* Magic number identifying file */ | ||
47 | __le32 dqh_version; /* File version */ | ||
48 | }; | ||
49 | |||
50 | /* Header with type and version specific information */ | ||
51 | struct v2_disk_dqinfo { | ||
52 | __le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */ | ||
53 | __le32 dqi_igrace; /* Time before inode soft limit becomes hard limit */ | ||
54 | __le32 dqi_flags; /* Flags for quotafile (DQF_*) */ | ||
55 | __le32 dqi_blocks; /* Number of blocks in file */ | ||
56 | __le32 dqi_free_blk; /* Number of first free block in the list */ | ||
57 | __le32 dqi_free_entry; /* Number of block with at least one free entry */ | ||
58 | }; | ||
59 | |||
60 | /* | ||
61 | * Structure of header of block with quota structures. It is padded to 16 bytes so | ||
62 | * there will be space for exactly 21 quota-entries in a block | ||
63 | */ | ||
64 | struct v2_disk_dqdbheader { | ||
65 | __le32 dqdh_next_free; /* Number of next block with free entry */ | ||
66 | __le32 dqdh_prev_free; /* Number of previous block with free entry */ | ||
67 | __le16 dqdh_entries; /* Number of valid entries in block */ | ||
68 | __le16 dqdh_pad1; | ||
69 | __le32 dqdh_pad2; | ||
70 | }; | ||
71 | |||
72 | #define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */ | ||
73 | #define V2_DQBLKSIZE_BITS 10 | ||
74 | #define V2_DQBLKSIZE (1 << V2_DQBLKSIZE_BITS) /* Size of block with quota structures */ | ||
75 | #define V2_DQTREEOFF 1 /* Offset of tree in file in blocks */ | ||
76 | #define V2_DQTREEDEPTH 4 /* Depth of quota tree */ | ||
77 | #define V2_DQSTRINBLK ((V2_DQBLKSIZE - sizeof(struct v2_disk_dqdbheader)) / sizeof(struct v2_disk_dqblk)) /* Number of entries in one blocks */ | ||
78 | |||
79 | #endif /* _LINUX_QUOTAIO_V2_H */ | ||