Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 LT |
17 | */ |
18 | #include "xfs.h" | |
a844f451 | 19 | #include "xfs_fs.h" |
1da177e4 | 20 | #include "xfs_types.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
25 | #include "xfs_ag.h" | |
1da177e4 LT |
26 | #include "xfs_dir2.h" |
27 | #include "xfs_dmapi.h" | |
28 | #include "xfs_mount.h" | |
4cd4a034 TS |
29 | #include "xfs_quota.h" |
30 | #include "xfs_error.h" | |
b09cc771 CH |
31 | #include "xfs_clnt.h" |
32 | ||
1da177e4 LT |
33 | |
34 | STATIC struct xfs_dquot * | |
35 | xfs_dqvopchown_default( | |
36 | struct xfs_trans *tp, | |
37 | struct xfs_inode *ip, | |
38 | struct xfs_dquot **dqp, | |
39 | struct xfs_dquot *dq) | |
40 | { | |
41 | return NULL; | |
42 | } | |
43 | ||
4cd4a034 TS |
44 | /* |
45 | * Clear the quotaflags in memory and in the superblock. | |
46 | */ | |
47 | int | |
48 | xfs_mount_reset_sbqflags(xfs_mount_t *mp) | |
49 | { | |
50 | int error; | |
51 | xfs_trans_t *tp; | |
4cd4a034 TS |
52 | |
53 | mp->m_qflags = 0; | |
54 | /* | |
55 | * It is OK to look at sb_qflags here in mount path, | |
3685c2a1 | 56 | * without m_sb_lock. |
4cd4a034 TS |
57 | */ |
58 | if (mp->m_sb.sb_qflags == 0) | |
59 | return 0; | |
3685c2a1 | 60 | spin_lock(&mp->m_sb_lock); |
4cd4a034 | 61 | mp->m_sb.sb_qflags = 0; |
3685c2a1 | 62 | spin_unlock(&mp->m_sb_lock); |
4cd4a034 TS |
63 | |
64 | /* | |
65 | * if the fs is readonly, let the incore superblock run | |
66 | * with quotas off but don't flush the update out to disk | |
67 | */ | |
bd186aa9 | 68 | if (mp->m_flags & XFS_MOUNT_RDONLY) |
4cd4a034 TS |
69 | return 0; |
70 | #ifdef QUOTADEBUG | |
71 | xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes"); | |
72 | #endif | |
73 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); | |
74 | if ((error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0, | |
75 | XFS_DEFAULT_LOG_COUNT))) { | |
76 | xfs_trans_cancel(tp, 0); | |
77 | xfs_fs_cmn_err(CE_ALERT, mp, | |
78 | "xfs_mount_reset_sbqflags: Superblock update failed!"); | |
79 | return error; | |
80 | } | |
81 | xfs_mod_sb(tp, XFS_SB_QFLAGS); | |
1c72bf90 | 82 | error = xfs_trans_commit(tp, 0); |
4cd4a034 TS |
83 | return error; |
84 | } | |
85 | ||
86 | STATIC int | |
87 | xfs_noquota_init( | |
88 | xfs_mount_t *mp, | |
89 | uint *needquotamount, | |
90 | uint *quotaflags) | |
91 | { | |
92 | int error = 0; | |
93 | ||
94 | *quotaflags = 0; | |
95 | *needquotamount = B_FALSE; | |
96 | ||
97 | ASSERT(!XFS_IS_QUOTA_ON(mp)); | |
98 | ||
99 | /* | |
100 | * If a file system had quotas running earlier, but decided to | |
101 | * mount without -o uquota/pquota/gquota options, revoke the | |
102 | * quotachecked license. | |
103 | */ | |
104 | if (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT) { | |
105 | cmn_err(CE_NOTE, | |
106 | "XFS resetting qflags for filesystem %s", | |
107 | mp->m_fsname); | |
108 | ||
109 | error = xfs_mount_reset_sbqflags(mp); | |
110 | } | |
111 | return error; | |
112 | } | |
113 | ||
b09cc771 | 114 | static struct xfs_qmops xfs_qmcore_stub = { |
4cd4a034 | 115 | .xfs_qminit = (xfs_qminit_t) xfs_noquota_init, |
1da177e4 LT |
116 | .xfs_qmdone = (xfs_qmdone_t) fs_noerr, |
117 | .xfs_qmmount = (xfs_qmmount_t) fs_noerr, | |
118 | .xfs_qmunmount = (xfs_qmunmount_t) fs_noerr, | |
119 | .xfs_dqrele = (xfs_dqrele_t) fs_noerr, | |
120 | .xfs_dqattach = (xfs_dqattach_t) fs_noerr, | |
121 | .xfs_dqdetach = (xfs_dqdetach_t) fs_noerr, | |
122 | .xfs_dqpurgeall = (xfs_dqpurgeall_t) fs_noerr, | |
123 | .xfs_dqvopalloc = (xfs_dqvopalloc_t) fs_noerr, | |
124 | .xfs_dqvopcreate = (xfs_dqvopcreate_t) fs_noerr, | |
125 | .xfs_dqvoprename = (xfs_dqvoprename_t) fs_noerr, | |
126 | .xfs_dqvopchown = xfs_dqvopchown_default, | |
127 | .xfs_dqvopchownresv = (xfs_dqvopchownresv_t) fs_noerr, | |
b09cc771 CH |
128 | .xfs_dqstatvfs = (xfs_dqstatvfs_t) fs_noval, |
129 | .xfs_dqsync = (xfs_dqsync_t) fs_noerr, | |
130 | .xfs_quotactl = (xfs_quotactl_t) fs_nosys, | |
1da177e4 | 131 | }; |
b09cc771 CH |
132 | |
133 | int | |
134 | xfs_qmops_get(struct xfs_mount *mp, struct xfs_mount_args *args) | |
135 | { | |
136 | if (args->flags & (XFSMNT_UQUOTA | XFSMNT_PQUOTA | XFSMNT_GQUOTA)) { | |
c8fcfac5 CH |
137 | #ifdef CONFIG_XFS_QUOTA |
138 | mp->m_qm_ops = &xfs_qmcore_xfs; | |
139 | #else | |
140 | cmn_err(CE_WARN, | |
141 | "XFS: qouta support not available in this kernel."); | |
142 | return EINVAL; | |
143 | #endif | |
b09cc771 CH |
144 | } else { |
145 | mp->m_qm_ops = &xfs_qmcore_stub; | |
146 | } | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
151 | void | |
152 | xfs_qmops_put(struct xfs_mount *mp) | |
153 | { | |
b09cc771 | 154 | } |