Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
932f2c32 | 2 | * Copyright (c) 2000-2006 Silicon Graphics, Inc. |
4ce3121f | 3 | * All Rights Reserved. |
1da177e4 | 4 | * |
4ce3121f 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 | * | |
4ce3121f 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 | * |
4ce3121f 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 | 17 | */ |
1da177e4 LT |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" | |
1da177e4 | 20 | #include "xfs_log.h" |
1da177e4 LT |
21 | #include "xfs_trans.h" |
22 | #include "xfs_sb.h" | |
a844f451 | 23 | #include "xfs_ag.h" |
1da177e4 | 24 | #include "xfs_alloc.h" |
1da177e4 LT |
25 | #include "xfs_quota.h" |
26 | #include "xfs_mount.h" | |
1da177e4 | 27 | #include "xfs_bmap_btree.h" |
1da177e4 | 28 | #include "xfs_inode.h" |
a844f451 | 29 | #include "xfs_itable.h" |
1da177e4 | 30 | #include "xfs_bmap.h" |
1da177e4 LT |
31 | #include "xfs_rtalloc.h" |
32 | #include "xfs_error.h" | |
1da177e4 LT |
33 | #include "xfs_attr.h" |
34 | #include "xfs_buf_item.h" | |
1da177e4 LT |
35 | #include "xfs_qm.h" |
36 | ||
1da177e4 | 37 | |
b09cc771 CH |
38 | STATIC void |
39 | xfs_fill_statvfs_from_dquot( | |
00dd4029 | 40 | struct kstatfs *statp, |
89605011 | 41 | struct xfs_dquot *dqp) |
932f2c32 | 42 | { |
932f2c32 | 43 | __uint64_t limit; |
932f2c32 | 44 | |
89605011 CH |
45 | limit = dqp->q_core.d_blk_softlimit ? |
46 | be64_to_cpu(dqp->q_core.d_blk_softlimit) : | |
47 | be64_to_cpu(dqp->q_core.d_blk_hardlimit); | |
932f2c32 NS |
48 | if (limit && statp->f_blocks > limit) { |
49 | statp->f_blocks = limit; | |
9b00f307 | 50 | statp->f_bfree = statp->f_bavail = |
89605011 CH |
51 | (statp->f_blocks > dqp->q_res_bcount) ? |
52 | (statp->f_blocks - dqp->q_res_bcount) : 0; | |
932f2c32 | 53 | } |
2a293b7d | 54 | |
89605011 CH |
55 | limit = dqp->q_core.d_ino_softlimit ? |
56 | be64_to_cpu(dqp->q_core.d_ino_softlimit) : | |
57 | be64_to_cpu(dqp->q_core.d_ino_hardlimit); | |
932f2c32 NS |
58 | if (limit && statp->f_files > limit) { |
59 | statp->f_files = limit; | |
2a293b7d | 60 | statp->f_ffree = |
89605011 CH |
61 | (statp->f_files > dqp->q_res_icount) ? |
62 | (statp->f_ffree - dqp->q_res_icount) : 0; | |
932f2c32 | 63 | } |
932f2c32 NS |
64 | } |
65 | ||
b09cc771 CH |
66 | |
67 | /* | |
68 | * Directory tree accounting is implemented using project quotas, where | |
69 | * the project identifier is inherited from parent directories. | |
70 | * A statvfs (df, etc.) of a directory that is using project quota should | |
71 | * return a statvfs of the project, not the entire filesystem. | |
72 | * This makes such trees appear as if they are filesystems in themselves. | |
73 | */ | |
7d095257 | 74 | void |
b09cc771 CH |
75 | xfs_qm_statvfs( |
76 | xfs_inode_t *ip, | |
00dd4029 | 77 | struct kstatfs *statp) |
1da177e4 | 78 | { |
b09cc771 CH |
79 | xfs_mount_t *mp = ip->i_mount; |
80 | xfs_dquot_t *dqp; | |
1da177e4 | 81 | |
6743099c | 82 | if (!xfs_qm_dqget(mp, NULL, xfs_get_projid(ip), XFS_DQ_PROJ, 0, &dqp)) { |
89605011 | 83 | xfs_fill_statvfs_from_dquot(statp, dqp); |
b09cc771 | 84 | xfs_qm_dqput(dqp); |
1da177e4 | 85 | } |
1da177e4 LT |
86 | } |
87 | ||
7d095257 | 88 | int |
1da177e4 LT |
89 | xfs_qm_newmount( |
90 | xfs_mount_t *mp, | |
91 | uint *needquotamount, | |
92 | uint *quotaflags) | |
93 | { | |
94 | uint quotaondisk; | |
c8ad20ff | 95 | uint uquotaondisk = 0, gquotaondisk = 0, pquotaondisk = 0; |
1da177e4 | 96 | |
62118709 | 97 | quotaondisk = xfs_sb_version_hasquota(&mp->m_sb) && |
c8ad20ff | 98 | (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT); |
1da177e4 LT |
99 | |
100 | if (quotaondisk) { | |
101 | uquotaondisk = mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT; | |
c8ad20ff | 102 | pquotaondisk = mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT; |
1da177e4 LT |
103 | gquotaondisk = mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT; |
104 | } | |
105 | ||
106 | /* | |
107 | * If the device itself is read-only, we can't allow | |
108 | * the user to change the state of quota on the mount - | |
109 | * this would generate a transaction on the ro device, | |
110 | * which would lead to an I/O error and shutdown | |
111 | */ | |
112 | ||
113 | if (((uquotaondisk && !XFS_IS_UQUOTA_ON(mp)) || | |
114 | (!uquotaondisk && XFS_IS_UQUOTA_ON(mp)) || | |
c8ad20ff NS |
115 | (pquotaondisk && !XFS_IS_PQUOTA_ON(mp)) || |
116 | (!pquotaondisk && XFS_IS_PQUOTA_ON(mp)) || | |
1da177e4 | 117 | (gquotaondisk && !XFS_IS_GQUOTA_ON(mp)) || |
c8ad20ff | 118 | (!gquotaondisk && XFS_IS_OQUOTA_ON(mp))) && |
1da177e4 | 119 | xfs_dev_is_read_only(mp, "changing quota state")) { |
0b932ccc | 120 | xfs_warn(mp, "please mount with%s%s%s%s.", |
1da177e4 LT |
121 | (!quotaondisk ? "out quota" : ""), |
122 | (uquotaondisk ? " usrquota" : ""), | |
c8ad20ff | 123 | (pquotaondisk ? " prjquota" : ""), |
1da177e4 LT |
124 | (gquotaondisk ? " grpquota" : "")); |
125 | return XFS_ERROR(EPERM); | |
126 | } | |
127 | ||
128 | if (XFS_IS_QUOTA_ON(mp) || quotaondisk) { | |
129 | /* | |
130 | * Call mount_quotas at this point only if we won't have to do | |
131 | * a quotacheck. | |
132 | */ | |
133 | if (quotaondisk && !XFS_QM_NEED_QUOTACHECK(mp)) { | |
134 | /* | |
25985edc | 135 | * If an error occurred, qm_mount_quotas code |
1da177e4 LT |
136 | * has already disabled quotas. So, just finish |
137 | * mounting, and get on with the boring life | |
138 | * without disk quotas. | |
139 | */ | |
4249023a | 140 | xfs_qm_mount_quotas(mp); |
1da177e4 LT |
141 | } else { |
142 | /* | |
143 | * Clear the quota flags, but remember them. This | |
144 | * is so that the quota code doesn't get invoked | |
145 | * before we're ready. This can happen when an | |
146 | * inode goes inactive and wants to free blocks, | |
147 | * or via xfs_log_mount_finish. | |
148 | */ | |
667a9291 | 149 | *needquotamount = true; |
1da177e4 LT |
150 | *quotaflags = mp->m_qflags; |
151 | mp->m_qflags = 0; | |
152 | } | |
153 | } | |
154 | ||
155 | return 0; | |
156 | } |