| Christoph Hellwig | fcafb71 | 2009-02-09 08:47:34 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2008, Christoph Hellwig |
| 3 | * All Rights Reserved. |
| 4 | * |
| 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 |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 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. |
| 13 | * |
| 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 |
| 17 | */ |
| 18 | #include "xfs.h" |
| 19 | #include "xfs_dmapi.h" |
| 20 | #include "xfs_sb.h" |
| 21 | #include "xfs_inum.h" |
| 22 | #include "xfs_ag.h" |
| 23 | #include "xfs_mount.h" |
| 24 | #include "xfs_quota.h" |
| 25 | #include "xfs_log.h" |
| 26 | #include "xfs_trans.h" |
| 27 | #include "xfs_bmap_btree.h" |
| 28 | #include "xfs_inode.h" |
| 29 | #include "quota/xfs_qm.h" |
| 30 | #include <linux/quota.h> |
| 31 | |
| 32 | |
| 33 | STATIC int |
| 34 | xfs_quota_type(int type) |
| 35 | { |
| 36 | switch (type) { |
| 37 | case USRQUOTA: |
| 38 | return XFS_DQ_USER; |
| 39 | case GRPQUOTA: |
| 40 | return XFS_DQ_GROUP; |
| 41 | default: |
| 42 | return XFS_DQ_PROJ; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | STATIC int |
| 47 | xfs_fs_quota_sync( |
| 48 | struct super_block *sb, |
| 49 | int type) |
| 50 | { |
| 51 | struct xfs_mount *mp = XFS_M(sb); |
| 52 | |
| 53 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
| 54 | return -ENOSYS; |
| 55 | return -xfs_sync_inodes(mp, SYNC_DELWRI); |
| 56 | } |
| 57 | |
| 58 | STATIC int |
| 59 | xfs_fs_get_xstate( |
| 60 | struct super_block *sb, |
| 61 | struct fs_quota_stat *fqs) |
| 62 | { |
| 63 | struct xfs_mount *mp = XFS_M(sb); |
| 64 | |
| 65 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
| 66 | return -ENOSYS; |
| 67 | return -xfs_qm_scall_getqstat(mp, fqs); |
| 68 | } |
| 69 | |
| 70 | STATIC int |
| 71 | xfs_fs_set_xstate( |
| 72 | struct super_block *sb, |
| 73 | unsigned int uflags, |
| 74 | int op) |
| 75 | { |
| 76 | struct xfs_mount *mp = XFS_M(sb); |
| 77 | unsigned int flags = 0; |
| 78 | |
| 79 | if (sb->s_flags & MS_RDONLY) |
| 80 | return -EROFS; |
| 81 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
| 82 | return -ENOSYS; |
| 83 | if (!capable(CAP_SYS_ADMIN)) |
| 84 | return -EPERM; |
| 85 | |
| 86 | if (uflags & XFS_QUOTA_UDQ_ACCT) |
| 87 | flags |= XFS_UQUOTA_ACCT; |
| 88 | if (uflags & XFS_QUOTA_PDQ_ACCT) |
| 89 | flags |= XFS_PQUOTA_ACCT; |
| 90 | if (uflags & XFS_QUOTA_GDQ_ACCT) |
| 91 | flags |= XFS_GQUOTA_ACCT; |
| 92 | if (uflags & XFS_QUOTA_UDQ_ENFD) |
| 93 | flags |= XFS_UQUOTA_ENFD; |
| 94 | if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD)) |
| 95 | flags |= XFS_OQUOTA_ENFD; |
| 96 | |
| 97 | switch (op) { |
| 98 | case Q_XQUOTAON: |
| 99 | return -xfs_qm_scall_quotaon(mp, flags); |
| 100 | case Q_XQUOTAOFF: |
| 101 | if (!XFS_IS_QUOTA_ON(mp)) |
| 102 | return -EINVAL; |
| 103 | return -xfs_qm_scall_quotaoff(mp, flags); |
| 104 | case Q_XQUOTARM: |
| 105 | if (XFS_IS_QUOTA_ON(mp)) |
| 106 | return -EINVAL; |
| 107 | return -xfs_qm_scall_trunc_qfiles(mp, flags); |
| 108 | } |
| 109 | |
| 110 | return -EINVAL; |
| 111 | } |
| 112 | |
| 113 | STATIC int |
| 114 | xfs_fs_get_xquota( |
| 115 | struct super_block *sb, |
| 116 | int type, |
| 117 | qid_t id, |
| 118 | struct fs_disk_quota *fdq) |
| 119 | { |
| 120 | struct xfs_mount *mp = XFS_M(sb); |
| 121 | |
| 122 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
| 123 | return -ENOSYS; |
| 124 | if (!XFS_IS_QUOTA_ON(mp)) |
| 125 | return -ESRCH; |
| 126 | |
| 127 | return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq); |
| 128 | } |
| 129 | |
| 130 | STATIC int |
| 131 | xfs_fs_set_xquota( |
| 132 | struct super_block *sb, |
| 133 | int type, |
| 134 | qid_t id, |
| 135 | struct fs_disk_quota *fdq) |
| 136 | { |
| 137 | struct xfs_mount *mp = XFS_M(sb); |
| 138 | |
| 139 | if (sb->s_flags & MS_RDONLY) |
| 140 | return -EROFS; |
| 141 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
| 142 | return -ENOSYS; |
| 143 | if (!XFS_IS_QUOTA_ON(mp)) |
| 144 | return -ESRCH; |
| 145 | if (!capable(CAP_SYS_ADMIN)) |
| 146 | return -EPERM; |
| 147 | |
| 148 | return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq); |
| 149 | } |
| 150 | |
| 151 | struct quotactl_ops xfs_quotactl_operations = { |
| 152 | .quota_sync = xfs_fs_quota_sync, |
| 153 | .get_xstate = xfs_fs_get_xstate, |
| 154 | .set_xstate = xfs_fs_set_xstate, |
| 155 | .get_xquota = xfs_fs_get_xquota, |
| 156 | .set_xquota = xfs_fs_set_xquota, |
| 157 | }; |