xfs_quotaops.c
3.43 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
/*
* Copyright (c) 2008, Christoph Hellwig
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "xfs.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_quota.h"
#include "xfs_trans.h"
#include "xfs_qm.h"
#include <linux/quota.h>
STATIC int
xfs_quota_type(int type)
{
switch (type) {
case USRQUOTA:
return XFS_DQ_USER;
case GRPQUOTA:
return XFS_DQ_GROUP;
default:
return XFS_DQ_PROJ;
}
}
STATIC int
xfs_fs_get_xstate(
struct super_block *sb,
struct fs_quota_stat *fqs)
{
struct xfs_mount *mp = XFS_M(sb);
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
return -xfs_qm_scall_getqstat(mp, fqs);
}
STATIC int
xfs_fs_get_xstatev(
struct super_block *sb,
struct fs_quota_statv *fqs)
{
struct xfs_mount *mp = XFS_M(sb);
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
return -xfs_qm_scall_getqstatv(mp, fqs);
}
STATIC int
xfs_fs_set_xstate(
struct super_block *sb,
unsigned int uflags,
int op)
{
struct xfs_mount *mp = XFS_M(sb);
unsigned int flags = 0;
if (sb->s_flags & MS_RDONLY)
return -EROFS;
if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
if (uflags & FS_QUOTA_UDQ_ACCT)
flags |= XFS_UQUOTA_ACCT;
if (uflags & FS_QUOTA_PDQ_ACCT)
flags |= XFS_PQUOTA_ACCT;
if (uflags & FS_QUOTA_GDQ_ACCT)
flags |= XFS_GQUOTA_ACCT;
if (uflags & FS_QUOTA_UDQ_ENFD)
flags |= XFS_UQUOTA_ENFD;
if (uflags & FS_QUOTA_GDQ_ENFD)
flags |= XFS_GQUOTA_ENFD;
if (uflags & FS_QUOTA_PDQ_ENFD)
flags |= XFS_PQUOTA_ENFD;
switch (op) {
case Q_XQUOTAON:
return -xfs_qm_scall_quotaon(mp, flags);
case Q_XQUOTAOFF:
if (!XFS_IS_QUOTA_ON(mp))
return -EINVAL;
return -xfs_qm_scall_quotaoff(mp, flags);
case Q_XQUOTARM:
if (XFS_IS_QUOTA_ON(mp))
return -EINVAL;
return -xfs_qm_scall_trunc_qfiles(mp, flags);
}
return -EINVAL;
}
STATIC int
xfs_fs_get_dqblk(
struct super_block *sb,
struct kqid qid,
struct fs_disk_quota *fdq)
{
struct xfs_mount *mp = XFS_M(sb);
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
if (!XFS_IS_QUOTA_ON(mp))
return -ESRCH;
return -xfs_qm_scall_getquota(mp, from_kqid(&init_user_ns, qid),
xfs_quota_type(qid.type), fdq);
}
STATIC int
xfs_fs_set_dqblk(
struct super_block *sb,
struct kqid qid,
struct fs_disk_quota *fdq)
{
struct xfs_mount *mp = XFS_M(sb);
if (sb->s_flags & MS_RDONLY)
return -EROFS;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
if (!XFS_IS_QUOTA_ON(mp))
return -ESRCH;
return -xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid),
xfs_quota_type(qid.type), fdq);
}
const struct quotactl_ops xfs_quotactl_operations = {
.get_xstatev = xfs_fs_get_xstatev,
.get_xstate = xfs_fs_get_xstate,
.set_xstate = xfs_fs_set_xstate,
.get_dqblk = xfs_fs_get_dqblk,
.set_dqblk = xfs_fs_set_dqblk,
};