Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | ee34807 | 2005-11-02 10:32:38 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of version 2 of the GNU General Public License as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it would be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 11 | * |
| 12 | * Further, this software is distributed without any warranty that it is |
| 13 | * free of the rightful claim of any third person regarding infringement |
| 14 | * or the like. Any license provided herein, whether implied or |
| 15 | * otherwise, applies only to this software file. Patent licenses, if |
| 16 | * any, provided herein do not apply to combinations of this program with |
| 17 | * other software, or any other product whatsoever. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License along |
| 20 | * with this program; if not, write the Free Software Foundation, Inc., 59 |
| 21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| 22 | * |
| 23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, |
| 24 | * Mountain View, CA 94043, or: |
| 25 | * |
| 26 | * http://www.sgi.com |
| 27 | * |
| 28 | * For further information regarding this notice, see: |
| 29 | * |
| 30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ |
| 31 | */ |
| 32 | |
| 33 | #include "xfs.h" |
| 34 | #include "xfs_fs.h" |
| 35 | #include "xfs_inum.h" |
| 36 | #include "xfs_log.h" |
| 37 | #include "xfs_trans.h" |
| 38 | #include "xfs_sb.h" |
| 39 | #include "xfs_dir.h" |
| 40 | #include "xfs_dir2.h" |
| 41 | #include "xfs_alloc.h" |
| 42 | #include "xfs_dmapi.h" |
| 43 | #include "xfs_quota.h" |
| 44 | #include "xfs_mount.h" |
| 45 | #include "xfs_alloc_btree.h" |
| 46 | #include "xfs_bmap_btree.h" |
| 47 | #include "xfs_ialloc_btree.h" |
| 48 | #include "xfs_btree.h" |
| 49 | #include "xfs_ialloc.h" |
| 50 | #include "xfs_attr_sf.h" |
| 51 | #include "xfs_dir_sf.h" |
| 52 | #include "xfs_dir2_sf.h" |
| 53 | #include "xfs_dinode.h" |
| 54 | #include "xfs_inode.h" |
| 55 | #include "xfs_bmap.h" |
| 56 | #include "xfs_bit.h" |
| 57 | #include "xfs_rtalloc.h" |
| 58 | #include "xfs_error.h" |
| 59 | #include "xfs_itable.h" |
| 60 | #include "xfs_rw.h" |
| 61 | #include "xfs_acl.h" |
| 62 | #include "xfs_cap.h" |
| 63 | #include "xfs_mac.h" |
| 64 | #include "xfs_attr.h" |
| 65 | #include "xfs_buf_item.h" |
| 66 | #include "xfs_utils.h" |
| 67 | |
| 68 | #include "xfs_qm.h" |
| 69 | |
| 70 | #ifdef DEBUG |
| 71 | # define qdprintk(s, args...) cmn_err(CE_DEBUG, s, ## args) |
| 72 | #else |
| 73 | # define qdprintk(s, args...) do { } while (0) |
| 74 | #endif |
| 75 | |
| 76 | STATIC int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint); |
| 77 | STATIC int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint, |
| 78 | fs_disk_quota_t *); |
| 79 | STATIC int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *); |
| 80 | STATIC int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint, |
| 81 | fs_disk_quota_t *); |
| 82 | STATIC int xfs_qm_scall_quotaon(xfs_mount_t *, uint); |
| 83 | STATIC int xfs_qm_scall_quotaoff(xfs_mount_t *, uint, boolean_t); |
| 84 | STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); |
| 85 | STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, |
| 86 | uint); |
| 87 | STATIC uint xfs_qm_import_flags(uint); |
| 88 | STATIC uint xfs_qm_export_flags(uint); |
| 89 | STATIC uint xfs_qm_import_qtype_flags(uint); |
| 90 | STATIC uint xfs_qm_export_qtype_flags(uint); |
| 91 | STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *, |
| 92 | fs_disk_quota_t *); |
| 93 | |
| 94 | |
| 95 | /* |
| 96 | * The main distribution switch of all XFS quotactl system calls. |
| 97 | */ |
| 98 | int |
| 99 | xfs_qm_quotactl( |
| 100 | struct bhv_desc *bdp, |
| 101 | int cmd, |
| 102 | int id, |
| 103 | xfs_caddr_t addr) |
| 104 | { |
| 105 | xfs_mount_t *mp; |
| 106 | int error; |
| 107 | struct vfs *vfsp; |
| 108 | |
| 109 | vfsp = bhvtovfs(bdp); |
| 110 | mp = XFS_VFSTOM(vfsp); |
| 111 | |
Nathan Scott | ee34807 | 2005-11-02 10:32:38 +1100 | [diff] [blame] | 112 | ASSERT(addr != NULL || cmd == Q_XQUOTASYNC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
| 114 | /* |
| 115 | * The following commands are valid even when quotaoff. |
| 116 | */ |
| 117 | switch (cmd) { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 118 | case Q_XQUOTARM: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 120 | * Truncate quota files. quota must be off. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | */ |
Nathan Scott | c310ab6 | 2005-11-02 10:31:41 +1100 | [diff] [blame] | 122 | if (XFS_IS_QUOTA_ON(mp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | return XFS_ERROR(EINVAL); |
| 124 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 125 | return XFS_ERROR(EROFS); |
| 126 | return (xfs_qm_scall_trunc_qfiles(mp, |
| 127 | xfs_qm_import_qtype_flags(*(uint *)addr))); |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 128 | |
| 129 | case Q_XGETQSTAT: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | /* |
| 131 | * Get quota status information. |
| 132 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | return (xfs_qm_scall_getqstat(mp, (fs_quota_stat_t *)addr)); |
| 134 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 135 | case Q_XQUOTAON: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 137 | * QUOTAON - enabling quota enforcement. |
| 138 | * Quota accounting must be turned on at mount time. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 141 | return XFS_ERROR(EROFS); |
| 142 | return (xfs_qm_scall_quotaon(mp, |
| 143 | xfs_qm_import_flags(*(uint *)addr))); |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 144 | |
| 145 | case Q_XQUOTAOFF: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 147 | return XFS_ERROR(EROFS); |
| 148 | break; |
| 149 | |
Nathan Scott | ee34807 | 2005-11-02 10:32:38 +1100 | [diff] [blame] | 150 | case Q_XQUOTASYNC: |
| 151 | return (xfs_sync_inodes(mp, SYNC_DELWRI, 0, NULL)); |
| 152 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 153 | default: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | break; |
| 155 | } |
| 156 | |
| 157 | if (! XFS_IS_QUOTA_ON(mp)) |
| 158 | return XFS_ERROR(ESRCH); |
| 159 | |
| 160 | switch (cmd) { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 161 | case Q_XQUOTAOFF: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 163 | return XFS_ERROR(EROFS); |
| 164 | error = xfs_qm_scall_quotaoff(mp, |
| 165 | xfs_qm_import_flags(*(uint *)addr), |
| 166 | B_FALSE); |
| 167 | break; |
| 168 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 169 | case Q_XGETQUOTA: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER, |
| 171 | (fs_disk_quota_t *)addr); |
| 172 | break; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 173 | case Q_XGETGQUOTA: |
| 174 | error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP, |
| 175 | (fs_disk_quota_t *)addr); |
| 176 | break; |
| 177 | case Q_XGETPQUOTA: |
| 178 | error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_PROJ, |
| 179 | (fs_disk_quota_t *)addr); |
| 180 | break; |
| 181 | |
| 182 | case Q_XSETQLIM: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 184 | return XFS_ERROR(EROFS); |
| 185 | error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER, |
| 186 | (fs_disk_quota_t *)addr); |
| 187 | break; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 188 | case Q_XSETGQLIM: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 190 | return XFS_ERROR(EROFS); |
| 191 | error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_GROUP, |
| 192 | (fs_disk_quota_t *)addr); |
| 193 | break; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 194 | case Q_XSETPQLIM: |
| 195 | if (vfsp->vfs_flag & VFS_RDONLY) |
| 196 | return XFS_ERROR(EROFS); |
| 197 | error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_PROJ, |
| 198 | (fs_disk_quota_t *)addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | break; |
| 200 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 201 | default: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | error = XFS_ERROR(EINVAL); |
| 203 | break; |
| 204 | } |
| 205 | |
| 206 | return (error); |
| 207 | } |
| 208 | |
| 209 | /* |
| 210 | * Turn off quota accounting and/or enforcement for all udquots and/or |
| 211 | * gdquots. Called only at unmount time. |
| 212 | * |
| 213 | * This assumes that there are no dquots of this file system cached |
| 214 | * incore, and modifies the ondisk dquot directly. Therefore, for example, |
| 215 | * it is an error to call this twice, without purging the cache. |
| 216 | */ |
| 217 | STATIC int |
| 218 | xfs_qm_scall_quotaoff( |
| 219 | xfs_mount_t *mp, |
| 220 | uint flags, |
| 221 | boolean_t force) |
| 222 | { |
| 223 | uint dqtype; |
| 224 | unsigned long s; |
| 225 | int error; |
| 226 | uint inactivate_flags; |
| 227 | xfs_qoff_logitem_t *qoffstart; |
| 228 | int nculprits; |
| 229 | |
| 230 | if (!force && !capable(CAP_SYS_ADMIN)) |
| 231 | return XFS_ERROR(EPERM); |
| 232 | /* |
| 233 | * No file system can have quotas enabled on disk but not in core. |
| 234 | * Note that quota utilities (like quotaoff) _expect_ |
| 235 | * errno == EEXIST here. |
| 236 | */ |
| 237 | if ((mp->m_qflags & flags) == 0) |
| 238 | return XFS_ERROR(EEXIST); |
| 239 | error = 0; |
| 240 | |
| 241 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
| 242 | |
| 243 | /* |
| 244 | * We don't want to deal with two quotaoffs messing up each other, |
| 245 | * so we're going to serialize it. quotaoff isn't exactly a performance |
| 246 | * critical thing. |
| 247 | * If quotaoff, then we must be dealing with the root filesystem. |
| 248 | */ |
| 249 | ASSERT(mp->m_quotainfo); |
| 250 | if (mp->m_quotainfo) |
| 251 | mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD); |
| 252 | |
| 253 | ASSERT(mp->m_quotainfo); |
| 254 | |
| 255 | /* |
| 256 | * If we're just turning off quota enforcement, change mp and go. |
| 257 | */ |
| 258 | if ((flags & XFS_ALL_QUOTA_ACCT) == 0) { |
| 259 | mp->m_qflags &= ~(flags); |
| 260 | |
| 261 | s = XFS_SB_LOCK(mp); |
| 262 | mp->m_sb.sb_qflags = mp->m_qflags; |
| 263 | XFS_SB_UNLOCK(mp, s); |
| 264 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 265 | |
| 266 | /* XXX what to do if error ? Revert back to old vals incore ? */ |
| 267 | error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); |
| 268 | return (error); |
| 269 | } |
| 270 | |
| 271 | dqtype = 0; |
| 272 | inactivate_flags = 0; |
| 273 | /* |
| 274 | * If accounting is off, we must turn enforcement off, clear the |
| 275 | * quota 'CHKD' certificate to make it known that we have to |
| 276 | * do a quotacheck the next time this quota is turned on. |
| 277 | */ |
| 278 | if (flags & XFS_UQUOTA_ACCT) { |
| 279 | dqtype |= XFS_QMOPT_UQUOTA; |
| 280 | flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD); |
| 281 | inactivate_flags |= XFS_UQUOTA_ACTIVE; |
| 282 | } |
| 283 | if (flags & XFS_GQUOTA_ACCT) { |
| 284 | dqtype |= XFS_QMOPT_GQUOTA; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 285 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | inactivate_flags |= XFS_GQUOTA_ACTIVE; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 287 | } else if (flags & XFS_PQUOTA_ACCT) { |
| 288 | dqtype |= XFS_QMOPT_PQUOTA; |
| 289 | flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); |
| 290 | inactivate_flags |= XFS_PQUOTA_ACTIVE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | /* |
| 294 | * Nothing to do? Don't complain. This happens when we're just |
| 295 | * turning off quota enforcement. |
| 296 | */ |
| 297 | if ((mp->m_qflags & flags) == 0) { |
| 298 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 299 | return (0); |
| 300 | } |
| 301 | |
| 302 | /* |
| 303 | * Write the LI_QUOTAOFF log record, and do SB changes atomically, |
| 304 | * and synchronously. |
| 305 | */ |
| 306 | xfs_qm_log_quotaoff(mp, &qoffstart, flags); |
| 307 | |
| 308 | /* |
| 309 | * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct |
| 310 | * to take care of the race between dqget and quotaoff. We don't take |
| 311 | * any special locks to reset these bits. All processes need to check |
| 312 | * these bits *after* taking inode lock(s) to see if the particular |
| 313 | * quota type is in the process of being turned off. If *ACTIVE, it is |
| 314 | * guaranteed that all dquot structures and all quotainode ptrs will all |
| 315 | * stay valid as long as that inode is kept locked. |
| 316 | * |
| 317 | * There is no turning back after this. |
| 318 | */ |
| 319 | mp->m_qflags &= ~inactivate_flags; |
| 320 | |
| 321 | /* |
| 322 | * Give back all the dquot reference(s) held by inodes. |
| 323 | * Here we go thru every single incore inode in this file system, and |
| 324 | * do a dqrele on the i_udquot/i_gdquot that it may have. |
| 325 | * Essentially, as long as somebody has an inode locked, this guarantees |
| 326 | * that quotas will not be turned off. This is handy because in a |
| 327 | * transaction once we lock the inode(s) and check for quotaon, we can |
| 328 | * depend on the quota inodes (and other things) being valid as long as |
| 329 | * we keep the lock(s). |
| 330 | */ |
| 331 | xfs_qm_dqrele_all_inodes(mp, flags); |
| 332 | |
| 333 | /* |
| 334 | * Next we make the changes in the quota flag in the mount struct. |
| 335 | * This isn't protected by a particular lock directly, because we |
| 336 | * don't want to take a mrlock everytime we depend on quotas being on. |
| 337 | */ |
| 338 | mp->m_qflags &= ~(flags); |
| 339 | |
| 340 | /* |
| 341 | * Go through all the dquots of this file system and purge them, |
| 342 | * according to what was turned off. We may not be able to get rid |
| 343 | * of all dquots, because dquots can have temporary references that |
| 344 | * are not attached to inodes. eg. xfs_setattr, xfs_create. |
| 345 | * So, if we couldn't purge all the dquots from the filesystem, |
| 346 | * we can't get rid of the incore data structures. |
| 347 | */ |
| 348 | while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype|XFS_QMOPT_QUOTAOFF))) |
| 349 | delay(10 * nculprits); |
| 350 | |
| 351 | /* |
| 352 | * Transactions that had started before ACTIVE state bit was cleared |
| 353 | * could have logged many dquots, so they'd have higher LSNs than |
| 354 | * the first QUOTAOFF log record does. If we happen to crash when |
| 355 | * the tail of the log has gone past the QUOTAOFF record, but |
| 356 | * before the last dquot modification, those dquots __will__ |
| 357 | * recover, and that's not good. |
| 358 | * |
| 359 | * So, we have QUOTAOFF start and end logitems; the start |
| 360 | * logitem won't get overwritten until the end logitem appears... |
| 361 | */ |
| 362 | xfs_qm_log_quotaoff_end(mp, qoffstart, flags); |
| 363 | |
| 364 | /* |
| 365 | * If quotas is completely disabled, close shop. |
| 366 | */ |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 367 | if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) || |
| 368 | ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 369 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 370 | xfs_qm_destroy_quotainfo(mp); |
| 371 | return (0); |
| 372 | } |
| 373 | |
| 374 | /* |
| 375 | * Release our quotainode references, and vn_purge them, |
| 376 | * if we don't need them anymore. |
| 377 | */ |
| 378 | if ((dqtype & XFS_QMOPT_UQUOTA) && XFS_QI_UQIP(mp)) { |
| 379 | XFS_PURGE_INODE(XFS_QI_UQIP(mp)); |
| 380 | XFS_QI_UQIP(mp) = NULL; |
| 381 | } |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 382 | if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && XFS_QI_GQIP(mp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 383 | XFS_PURGE_INODE(XFS_QI_GQIP(mp)); |
| 384 | XFS_QI_GQIP(mp) = NULL; |
| 385 | } |
| 386 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 387 | |
| 388 | return (error); |
| 389 | } |
| 390 | |
| 391 | STATIC int |
| 392 | xfs_qm_scall_trunc_qfiles( |
| 393 | xfs_mount_t *mp, |
| 394 | uint flags) |
| 395 | { |
| 396 | int error; |
| 397 | xfs_inode_t *qip; |
| 398 | |
| 399 | if (!capable(CAP_SYS_ADMIN)) |
| 400 | return XFS_ERROR(EPERM); |
| 401 | error = 0; |
| 402 | if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0) { |
| 403 | qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); |
| 404 | return XFS_ERROR(EINVAL); |
| 405 | } |
| 406 | |
| 407 | if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) { |
| 408 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0); |
| 409 | if (! error) { |
| 410 | (void) xfs_truncate_file(mp, qip); |
| 411 | VN_RELE(XFS_ITOV(qip)); |
| 412 | } |
| 413 | } |
| 414 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 415 | if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) && |
| 416 | mp->m_sb.sb_gquotino != NULLFSINO) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 417 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0); |
| 418 | if (! error) { |
| 419 | (void) xfs_truncate_file(mp, qip); |
| 420 | VN_RELE(XFS_ITOV(qip)); |
| 421 | } |
| 422 | } |
| 423 | |
| 424 | return (error); |
| 425 | } |
| 426 | |
| 427 | |
| 428 | /* |
| 429 | * Switch on (a given) quota enforcement for a filesystem. This takes |
| 430 | * effect immediately. |
| 431 | * (Switching on quota accounting must be done at mount time.) |
| 432 | */ |
| 433 | STATIC int |
| 434 | xfs_qm_scall_quotaon( |
| 435 | xfs_mount_t *mp, |
| 436 | uint flags) |
| 437 | { |
| 438 | int error; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 439 | unsigned long s; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | uint qf; |
| 441 | uint accflags; |
| 442 | __int64_t sbflags; |
| 443 | |
| 444 | if (!capable(CAP_SYS_ADMIN)) |
| 445 | return XFS_ERROR(EPERM); |
| 446 | |
| 447 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
| 448 | /* |
| 449 | * Switching on quota accounting must be done at mount time. |
| 450 | */ |
| 451 | accflags = flags & XFS_ALL_QUOTA_ACCT; |
| 452 | flags &= ~(XFS_ALL_QUOTA_ACCT); |
| 453 | |
| 454 | sbflags = 0; |
| 455 | |
| 456 | if (flags == 0) { |
| 457 | qdprintk("quotaon: zero flags, m_qflags=%x\n", mp->m_qflags); |
| 458 | return XFS_ERROR(EINVAL); |
| 459 | } |
| 460 | |
| 461 | /* No fs can turn on quotas with a delayed effect */ |
| 462 | ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0); |
| 463 | |
| 464 | /* |
| 465 | * Can't enforce without accounting. We check the superblock |
| 466 | * qflags here instead of m_qflags because rootfs can have |
| 467 | * quota acct on ondisk without m_qflags' knowing. |
| 468 | */ |
| 469 | if (((flags & XFS_UQUOTA_ACCT) == 0 && |
| 470 | (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && |
| 471 | (flags & XFS_UQUOTA_ENFD)) |
| 472 | || |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 473 | ((flags & XFS_PQUOTA_ACCT) == 0 && |
| 474 | (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && |
| 475 | (flags & XFS_OQUOTA_ENFD)) |
| 476 | || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | ((flags & XFS_GQUOTA_ACCT) == 0 && |
| 478 | (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 479 | (flags & XFS_OQUOTA_ENFD))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n", |
| 481 | flags, mp->m_sb.sb_qflags); |
| 482 | return XFS_ERROR(EINVAL); |
| 483 | } |
| 484 | /* |
| 485 | * If everything's upto-date incore, then don't waste time. |
| 486 | */ |
| 487 | if ((mp->m_qflags & flags) == flags) |
| 488 | return XFS_ERROR(EEXIST); |
| 489 | |
| 490 | /* |
| 491 | * Change sb_qflags on disk but not incore mp->qflags |
| 492 | * if this is the root filesystem. |
| 493 | */ |
| 494 | s = XFS_SB_LOCK(mp); |
| 495 | qf = mp->m_sb.sb_qflags; |
| 496 | mp->m_sb.sb_qflags = qf | flags; |
| 497 | XFS_SB_UNLOCK(mp, s); |
| 498 | |
| 499 | /* |
| 500 | * There's nothing to change if it's the same. |
| 501 | */ |
| 502 | if ((qf & flags) == flags && sbflags == 0) |
| 503 | return XFS_ERROR(EEXIST); |
| 504 | sbflags |= XFS_SB_QFLAGS; |
| 505 | |
| 506 | if ((error = xfs_qm_write_sb_changes(mp, sbflags))) |
| 507 | return (error); |
| 508 | /* |
| 509 | * If we aren't trying to switch on quota enforcement, we are done. |
| 510 | */ |
| 511 | if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) != |
| 512 | (mp->m_qflags & XFS_UQUOTA_ACCT)) || |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 513 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != |
| 514 | (mp->m_qflags & XFS_PQUOTA_ACCT)) || |
| 515 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != |
| 516 | (mp->m_qflags & XFS_GQUOTA_ACCT)) || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | (flags & XFS_ALL_QUOTA_ENFD) == 0) |
| 518 | return (0); |
| 519 | |
| 520 | if (! XFS_IS_QUOTA_RUNNING(mp)) |
| 521 | return XFS_ERROR(ESRCH); |
| 522 | |
| 523 | /* |
| 524 | * Switch on quota enforcement in core. |
| 525 | */ |
| 526 | mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD); |
| 527 | mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); |
| 528 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 529 | |
| 530 | return (0); |
| 531 | } |
| 532 | |
| 533 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 534 | /* |
| 535 | * Return quota status information, such as uquota-off, enforcements, etc. |
| 536 | */ |
| 537 | STATIC int |
| 538 | xfs_qm_scall_getqstat( |
| 539 | xfs_mount_t *mp, |
| 540 | fs_quota_stat_t *out) |
| 541 | { |
| 542 | xfs_inode_t *uip, *gip; |
| 543 | boolean_t tempuqip, tempgqip; |
| 544 | |
| 545 | uip = gip = NULL; |
| 546 | tempuqip = tempgqip = B_FALSE; |
| 547 | memset(out, 0, sizeof(fs_quota_stat_t)); |
| 548 | |
| 549 | out->qs_version = FS_QSTAT_VERSION; |
| 550 | if (! XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) { |
| 551 | out->qs_uquota.qfs_ino = NULLFSINO; |
| 552 | out->qs_gquota.qfs_ino = NULLFSINO; |
| 553 | return (0); |
| 554 | } |
| 555 | out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags & |
| 556 | (XFS_ALL_QUOTA_ACCT| |
| 557 | XFS_ALL_QUOTA_ENFD)); |
| 558 | out->qs_pad = 0; |
| 559 | out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino; |
| 560 | out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino; |
| 561 | |
| 562 | if (mp->m_quotainfo) { |
| 563 | uip = mp->m_quotainfo->qi_uquotaip; |
| 564 | gip = mp->m_quotainfo->qi_gquotaip; |
| 565 | } |
| 566 | if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { |
| 567 | if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
| 568 | 0, 0, &uip, 0) == 0) |
| 569 | tempuqip = B_TRUE; |
| 570 | } |
| 571 | if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { |
| 572 | if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
| 573 | 0, 0, &gip, 0) == 0) |
| 574 | tempgqip = B_TRUE; |
| 575 | } |
| 576 | if (uip) { |
| 577 | out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks; |
| 578 | out->qs_uquota.qfs_nextents = uip->i_d.di_nextents; |
| 579 | if (tempuqip) |
| 580 | VN_RELE(XFS_ITOV(uip)); |
| 581 | } |
| 582 | if (gip) { |
| 583 | out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks; |
| 584 | out->qs_gquota.qfs_nextents = gip->i_d.di_nextents; |
| 585 | if (tempgqip) |
| 586 | VN_RELE(XFS_ITOV(gip)); |
| 587 | } |
| 588 | if (mp->m_quotainfo) { |
| 589 | out->qs_incoredqs = XFS_QI_MPLNDQUOTS(mp); |
| 590 | out->qs_btimelimit = XFS_QI_BTIMELIMIT(mp); |
| 591 | out->qs_itimelimit = XFS_QI_ITIMELIMIT(mp); |
| 592 | out->qs_rtbtimelimit = XFS_QI_RTBTIMELIMIT(mp); |
| 593 | out->qs_bwarnlimit = XFS_QI_BWARNLIMIT(mp); |
| 594 | out->qs_iwarnlimit = XFS_QI_IWARNLIMIT(mp); |
| 595 | } |
| 596 | return (0); |
| 597 | } |
| 598 | |
| 599 | /* |
| 600 | * Adjust quota limits, and start/stop timers accordingly. |
| 601 | */ |
| 602 | STATIC int |
| 603 | xfs_qm_scall_setqlim( |
| 604 | xfs_mount_t *mp, |
| 605 | xfs_dqid_t id, |
| 606 | uint type, |
| 607 | fs_disk_quota_t *newlim) |
| 608 | { |
| 609 | xfs_disk_dquot_t *ddq; |
| 610 | xfs_dquot_t *dqp; |
| 611 | xfs_trans_t *tp; |
| 612 | int error; |
| 613 | xfs_qcnt_t hard, soft; |
| 614 | |
| 615 | if (!capable(CAP_SYS_ADMIN)) |
| 616 | return XFS_ERROR(EPERM); |
| 617 | |
Nathan Scott | 754002b | 2005-06-21 15:49:06 +1000 | [diff] [blame] | 618 | if ((newlim->d_fieldmask & |
| 619 | (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK|FS_DQ_WARNS_MASK)) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 620 | return (0); |
| 621 | |
| 622 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); |
| 623 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128, |
| 624 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { |
| 625 | xfs_trans_cancel(tp, 0); |
| 626 | return (error); |
| 627 | } |
| 628 | |
| 629 | /* |
| 630 | * We don't want to race with a quotaoff so take the quotaoff lock. |
| 631 | * (We don't hold an inode lock, so there's nothing else to stop |
| 632 | * a quotaoff from happening). (XXXThis doesn't currently happen |
| 633 | * because we take the vfslock before calling xfs_qm_sysent). |
| 634 | */ |
| 635 | mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD); |
| 636 | |
| 637 | /* |
| 638 | * Get the dquot (locked), and join it to the transaction. |
| 639 | * Allocate the dquot if this doesn't exist. |
| 640 | */ |
| 641 | if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) { |
| 642 | xfs_trans_cancel(tp, XFS_TRANS_ABORT); |
| 643 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 644 | ASSERT(error != ENOENT); |
| 645 | return (error); |
| 646 | } |
| 647 | xfs_dqtrace_entry(dqp, "Q_SETQLIM: AFT DQGET"); |
| 648 | xfs_trans_dqjoin(tp, dqp); |
| 649 | ddq = &dqp->q_core; |
| 650 | |
| 651 | /* |
| 652 | * Make sure that hardlimits are >= soft limits before changing. |
| 653 | */ |
| 654 | hard = (newlim->d_fieldmask & FS_DQ_BHARD) ? |
| 655 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) : |
| 656 | INT_GET(ddq->d_blk_hardlimit, ARCH_CONVERT); |
| 657 | soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ? |
| 658 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) : |
| 659 | INT_GET(ddq->d_blk_softlimit, ARCH_CONVERT); |
| 660 | if (hard == 0 || hard >= soft) { |
| 661 | INT_SET(ddq->d_blk_hardlimit, ARCH_CONVERT, hard); |
| 662 | INT_SET(ddq->d_blk_softlimit, ARCH_CONVERT, soft); |
| 663 | if (id == 0) { |
| 664 | mp->m_quotainfo->qi_bhardlimit = hard; |
| 665 | mp->m_quotainfo->qi_bsoftlimit = soft; |
| 666 | } |
| 667 | } else { |
| 668 | qdprintk("blkhard %Ld < blksoft %Ld\n", hard, soft); |
| 669 | } |
| 670 | hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ? |
| 671 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) : |
| 672 | INT_GET(ddq->d_rtb_hardlimit, ARCH_CONVERT); |
| 673 | soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ? |
| 674 | (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) : |
| 675 | INT_GET(ddq->d_rtb_softlimit, ARCH_CONVERT); |
| 676 | if (hard == 0 || hard >= soft) { |
| 677 | INT_SET(ddq->d_rtb_hardlimit, ARCH_CONVERT, hard); |
| 678 | INT_SET(ddq->d_rtb_softlimit, ARCH_CONVERT, soft); |
| 679 | if (id == 0) { |
| 680 | mp->m_quotainfo->qi_rtbhardlimit = hard; |
| 681 | mp->m_quotainfo->qi_rtbsoftlimit = soft; |
| 682 | } |
| 683 | } else { |
| 684 | qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft); |
| 685 | } |
| 686 | |
| 687 | hard = (newlim->d_fieldmask & FS_DQ_IHARD) ? |
| 688 | (xfs_qcnt_t) newlim->d_ino_hardlimit : |
| 689 | INT_GET(ddq->d_ino_hardlimit, ARCH_CONVERT); |
| 690 | soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ? |
| 691 | (xfs_qcnt_t) newlim->d_ino_softlimit : |
| 692 | INT_GET(ddq->d_ino_softlimit, ARCH_CONVERT); |
| 693 | if (hard == 0 || hard >= soft) { |
| 694 | INT_SET(ddq->d_ino_hardlimit, ARCH_CONVERT, hard); |
| 695 | INT_SET(ddq->d_ino_softlimit, ARCH_CONVERT, soft); |
| 696 | if (id == 0) { |
| 697 | mp->m_quotainfo->qi_ihardlimit = hard; |
| 698 | mp->m_quotainfo->qi_isoftlimit = soft; |
| 699 | } |
| 700 | } else { |
| 701 | qdprintk("ihard %Ld < isoft %Ld\n", hard, soft); |
| 702 | } |
| 703 | |
Nathan Scott | 754002b | 2005-06-21 15:49:06 +1000 | [diff] [blame] | 704 | /* |
| 705 | * Update warnings counter(s) if requested |
| 706 | */ |
| 707 | if (newlim->d_fieldmask & FS_DQ_BWARNS) |
| 708 | INT_SET(ddq->d_bwarns, ARCH_CONVERT, newlim->d_bwarns); |
| 709 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
| 710 | INT_SET(ddq->d_iwarns, ARCH_CONVERT, newlim->d_iwarns); |
| 711 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
| 712 | INT_SET(ddq->d_rtbwarns, ARCH_CONVERT, newlim->d_rtbwarns); |
| 713 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | if (id == 0) { |
| 715 | /* |
| 716 | * Timelimits for the super user set the relative time |
| 717 | * the other users can be over quota for this file system. |
| 718 | * If it is zero a default is used. Ditto for the default |
Nathan Scott | 754002b | 2005-06-21 15:49:06 +1000 | [diff] [blame] | 719 | * soft and hard limit values (already done, above), and |
| 720 | * for warnings. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | */ |
| 722 | if (newlim->d_fieldmask & FS_DQ_BTIMER) { |
| 723 | mp->m_quotainfo->qi_btimelimit = newlim->d_btimer; |
| 724 | INT_SET(ddq->d_btimer, ARCH_CONVERT, newlim->d_btimer); |
| 725 | } |
| 726 | if (newlim->d_fieldmask & FS_DQ_ITIMER) { |
| 727 | mp->m_quotainfo->qi_itimelimit = newlim->d_itimer; |
| 728 | INT_SET(ddq->d_itimer, ARCH_CONVERT, newlim->d_itimer); |
| 729 | } |
| 730 | if (newlim->d_fieldmask & FS_DQ_RTBTIMER) { |
| 731 | mp->m_quotainfo->qi_rtbtimelimit = newlim->d_rtbtimer; |
| 732 | INT_SET(ddq->d_rtbtimer, ARCH_CONVERT, newlim->d_rtbtimer); |
| 733 | } |
Nathan Scott | 754002b | 2005-06-21 15:49:06 +1000 | [diff] [blame] | 734 | if (newlim->d_fieldmask & FS_DQ_BWARNS) |
| 735 | mp->m_quotainfo->qi_bwarnlimit = newlim->d_bwarns; |
| 736 | if (newlim->d_fieldmask & FS_DQ_IWARNS) |
| 737 | mp->m_quotainfo->qi_iwarnlimit = newlim->d_iwarns; |
| 738 | if (newlim->d_fieldmask & FS_DQ_RTBWARNS) |
| 739 | mp->m_quotainfo->qi_rtbwarnlimit = newlim->d_rtbwarns; |
| 740 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | /* |
| 742 | * If the user is now over quota, start the timelimit. |
| 743 | * The user will not be 'warned'. |
| 744 | * Note that we keep the timers ticking, whether enforcement |
| 745 | * is on or off. We don't really want to bother with iterating |
| 746 | * over all ondisk dquots and turning the timers on/off. |
| 747 | */ |
| 748 | xfs_qm_adjust_dqtimers(mp, ddq); |
| 749 | } |
| 750 | dqp->dq_flags |= XFS_DQ_DIRTY; |
| 751 | xfs_trans_log_dquot(tp, dqp); |
| 752 | |
| 753 | xfs_dqtrace_entry(dqp, "Q_SETQLIM: COMMIT"); |
| 754 | xfs_trans_commit(tp, 0, NULL); |
| 755 | xfs_qm_dqprint(dqp); |
| 756 | xfs_qm_dqrele(dqp); |
| 757 | mutex_unlock(&(XFS_QI_QOFFLOCK(mp))); |
| 758 | |
| 759 | return (0); |
| 760 | } |
| 761 | |
| 762 | STATIC int |
| 763 | xfs_qm_scall_getquota( |
| 764 | xfs_mount_t *mp, |
| 765 | xfs_dqid_t id, |
| 766 | uint type, |
| 767 | fs_disk_quota_t *out) |
| 768 | { |
| 769 | xfs_dquot_t *dqp; |
| 770 | int error; |
| 771 | |
| 772 | /* |
| 773 | * Try to get the dquot. We don't want it allocated on disk, so |
| 774 | * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't |
| 775 | * exist, we'll get ENOENT back. |
| 776 | */ |
| 777 | if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) { |
| 778 | return (error); |
| 779 | } |
| 780 | |
| 781 | xfs_dqtrace_entry(dqp, "Q_GETQUOTA SUCCESS"); |
| 782 | /* |
| 783 | * If everything's NULL, this dquot doesn't quite exist as far as |
| 784 | * our utility programs are concerned. |
| 785 | */ |
| 786 | if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) { |
| 787 | xfs_qm_dqput(dqp); |
| 788 | return XFS_ERROR(ENOENT); |
| 789 | } |
| 790 | /* xfs_qm_dqprint(dqp); */ |
| 791 | /* |
| 792 | * Convert the disk dquot to the exportable format |
| 793 | */ |
| 794 | xfs_qm_export_dquot(mp, &dqp->q_core, out); |
| 795 | xfs_qm_dqput(dqp); |
| 796 | return (error ? XFS_ERROR(EFAULT) : 0); |
| 797 | } |
| 798 | |
| 799 | |
| 800 | STATIC int |
| 801 | xfs_qm_log_quotaoff_end( |
| 802 | xfs_mount_t *mp, |
| 803 | xfs_qoff_logitem_t *startqoff, |
| 804 | uint flags) |
| 805 | { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 806 | xfs_trans_t *tp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 807 | int error; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 808 | xfs_qoff_logitem_t *qoffi; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 809 | |
| 810 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END); |
| 811 | |
| 812 | if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2, |
| 813 | 0, 0, XFS_DEFAULT_LOG_COUNT))) { |
| 814 | xfs_trans_cancel(tp, 0); |
| 815 | return (error); |
| 816 | } |
| 817 | |
| 818 | qoffi = xfs_trans_get_qoff_item(tp, startqoff, |
| 819 | flags & XFS_ALL_QUOTA_ACCT); |
| 820 | xfs_trans_log_quotaoff_item(tp, qoffi); |
| 821 | |
| 822 | /* |
| 823 | * We have to make sure that the transaction is secure on disk before we |
| 824 | * return and actually stop quota accounting. So, make it synchronous. |
| 825 | * We don't care about quotoff's performance. |
| 826 | */ |
| 827 | xfs_trans_set_sync(tp); |
| 828 | error = xfs_trans_commit(tp, 0, NULL); |
| 829 | return (error); |
| 830 | } |
| 831 | |
| 832 | |
| 833 | STATIC int |
| 834 | xfs_qm_log_quotaoff( |
| 835 | xfs_mount_t *mp, |
| 836 | xfs_qoff_logitem_t **qoffstartp, |
| 837 | uint flags) |
| 838 | { |
| 839 | xfs_trans_t *tp; |
| 840 | int error; |
| 841 | unsigned long s; |
| 842 | xfs_qoff_logitem_t *qoffi=NULL; |
| 843 | uint oldsbqflag=0; |
| 844 | |
| 845 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF); |
| 846 | if ((error = xfs_trans_reserve(tp, 0, |
| 847 | sizeof(xfs_qoff_logitem_t) * 2 + |
| 848 | mp->m_sb.sb_sectsize + 128, |
| 849 | 0, |
| 850 | 0, |
| 851 | XFS_DEFAULT_LOG_COUNT))) { |
| 852 | goto error0; |
| 853 | } |
| 854 | |
| 855 | qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); |
| 856 | xfs_trans_log_quotaoff_item(tp, qoffi); |
| 857 | |
| 858 | s = XFS_SB_LOCK(mp); |
| 859 | oldsbqflag = mp->m_sb.sb_qflags; |
| 860 | mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; |
| 861 | XFS_SB_UNLOCK(mp, s); |
| 862 | |
| 863 | xfs_mod_sb(tp, XFS_SB_QFLAGS); |
| 864 | |
| 865 | /* |
| 866 | * We have to make sure that the transaction is secure on disk before we |
| 867 | * return and actually stop quota accounting. So, make it synchronous. |
| 868 | * We don't care about quotoff's performance. |
| 869 | */ |
| 870 | xfs_trans_set_sync(tp); |
| 871 | error = xfs_trans_commit(tp, 0, NULL); |
| 872 | |
| 873 | error0: |
| 874 | if (error) { |
| 875 | xfs_trans_cancel(tp, 0); |
| 876 | /* |
| 877 | * No one else is modifying sb_qflags, so this is OK. |
| 878 | * We still hold the quotaofflock. |
| 879 | */ |
| 880 | s = XFS_SB_LOCK(mp); |
| 881 | mp->m_sb.sb_qflags = oldsbqflag; |
| 882 | XFS_SB_UNLOCK(mp, s); |
| 883 | } |
| 884 | *qoffstartp = qoffi; |
| 885 | return (error); |
| 886 | } |
| 887 | |
| 888 | |
| 889 | /* |
| 890 | * Translate an internal style on-disk-dquot to the exportable format. |
| 891 | * The main differences are that the counters/limits are all in Basic |
| 892 | * Blocks (BBs) instead of the internal FSBs, and all on-disk data has |
| 893 | * to be converted to the native endianness. |
| 894 | */ |
| 895 | STATIC void |
| 896 | xfs_qm_export_dquot( |
| 897 | xfs_mount_t *mp, |
| 898 | xfs_disk_dquot_t *src, |
| 899 | struct fs_disk_quota *dst) |
| 900 | { |
| 901 | memset(dst, 0, sizeof(*dst)); |
| 902 | dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */ |
| 903 | dst->d_flags = |
| 904 | xfs_qm_export_qtype_flags(INT_GET(src->d_flags, ARCH_CONVERT)); |
| 905 | dst->d_id = INT_GET(src->d_id, ARCH_CONVERT); |
| 906 | dst->d_blk_hardlimit = (__uint64_t) |
| 907 | XFS_FSB_TO_BB(mp, INT_GET(src->d_blk_hardlimit, ARCH_CONVERT)); |
| 908 | dst->d_blk_softlimit = (__uint64_t) |
| 909 | XFS_FSB_TO_BB(mp, INT_GET(src->d_blk_softlimit, ARCH_CONVERT)); |
| 910 | dst->d_ino_hardlimit = (__uint64_t) |
| 911 | INT_GET(src->d_ino_hardlimit, ARCH_CONVERT); |
| 912 | dst->d_ino_softlimit = (__uint64_t) |
| 913 | INT_GET(src->d_ino_softlimit, ARCH_CONVERT); |
| 914 | dst->d_bcount = (__uint64_t) |
| 915 | XFS_FSB_TO_BB(mp, INT_GET(src->d_bcount, ARCH_CONVERT)); |
| 916 | dst->d_icount = (__uint64_t) INT_GET(src->d_icount, ARCH_CONVERT); |
| 917 | dst->d_btimer = (__uint32_t) INT_GET(src->d_btimer, ARCH_CONVERT); |
| 918 | dst->d_itimer = (__uint32_t) INT_GET(src->d_itimer, ARCH_CONVERT); |
| 919 | dst->d_iwarns = INT_GET(src->d_iwarns, ARCH_CONVERT); |
| 920 | dst->d_bwarns = INT_GET(src->d_bwarns, ARCH_CONVERT); |
| 921 | |
| 922 | dst->d_rtb_hardlimit = (__uint64_t) |
| 923 | XFS_FSB_TO_BB(mp, INT_GET(src->d_rtb_hardlimit, ARCH_CONVERT)); |
| 924 | dst->d_rtb_softlimit = (__uint64_t) |
| 925 | XFS_FSB_TO_BB(mp, INT_GET(src->d_rtb_softlimit, ARCH_CONVERT)); |
| 926 | dst->d_rtbcount = (__uint64_t) |
| 927 | XFS_FSB_TO_BB(mp, INT_GET(src->d_rtbcount, ARCH_CONVERT)); |
| 928 | dst->d_rtbtimer = (__uint32_t) INT_GET(src->d_rtbtimer, ARCH_CONVERT); |
| 929 | dst->d_rtbwarns = INT_GET(src->d_rtbwarns, ARCH_CONVERT); |
| 930 | |
| 931 | /* |
| 932 | * Internally, we don't reset all the timers when quota enforcement |
| 933 | * gets turned off. No need to confuse the userlevel code, |
| 934 | * so return zeroes in that case. |
| 935 | */ |
| 936 | if (! XFS_IS_QUOTA_ENFORCED(mp)) { |
| 937 | dst->d_btimer = 0; |
| 938 | dst->d_itimer = 0; |
| 939 | dst->d_rtbtimer = 0; |
| 940 | } |
| 941 | |
| 942 | #ifdef DEBUG |
| 943 | if (XFS_IS_QUOTA_ENFORCED(mp) && dst->d_id != 0) { |
| 944 | if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) && |
| 945 | (dst->d_blk_softlimit > 0)) { |
| 946 | ASSERT(dst->d_btimer != 0); |
| 947 | } |
| 948 | if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) && |
| 949 | (dst->d_ino_softlimit > 0)) { |
| 950 | ASSERT(dst->d_itimer != 0); |
| 951 | } |
| 952 | } |
| 953 | #endif |
| 954 | } |
| 955 | |
| 956 | STATIC uint |
| 957 | xfs_qm_import_qtype_flags( |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 958 | uint uflags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 959 | { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 960 | uint oflags = 0; |
| 961 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 962 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 963 | * Can't be more than one, or none. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | */ |
| 965 | if (((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) == |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 966 | (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) || |
| 967 | ((uflags & (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) == |
| 968 | (XFS_GROUP_QUOTA | XFS_PROJ_QUOTA)) || |
| 969 | ((uflags & (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) == |
| 970 | (XFS_USER_QUOTA | XFS_PROJ_QUOTA)) || |
| 971 | ((uflags & (XFS_GROUP_QUOTA|XFS_USER_QUOTA|XFS_PROJ_QUOTA)) == 0)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | return (0); |
| 973 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 974 | oflags |= (uflags & XFS_USER_QUOTA) ? XFS_DQ_USER : 0; |
| 975 | oflags |= (uflags & XFS_PROJ_QUOTA) ? XFS_DQ_PROJ : 0; |
| 976 | oflags |= (uflags & XFS_GROUP_QUOTA) ? XFS_DQ_GROUP: 0; |
| 977 | return oflags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 978 | } |
| 979 | |
| 980 | STATIC uint |
| 981 | xfs_qm_export_qtype_flags( |
| 982 | uint flags) |
| 983 | { |
| 984 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 985 | * Can't be more than one, or none. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 986 | */ |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 987 | ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) != |
| 988 | (XFS_PROJ_QUOTA | XFS_USER_QUOTA)); |
| 989 | ASSERT((flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)) != |
| 990 | (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)); |
| 991 | ASSERT((flags & (XFS_USER_QUOTA | XFS_GROUP_QUOTA)) != |
| 992 | (XFS_USER_QUOTA | XFS_GROUP_QUOTA)); |
| 993 | ASSERT((flags & (XFS_PROJ_QUOTA|XFS_USER_QUOTA|XFS_GROUP_QUOTA)) != 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | |
| 995 | return (flags & XFS_DQ_USER) ? |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 996 | XFS_USER_QUOTA : (flags & XFS_DQ_PROJ) ? |
| 997 | XFS_PROJ_QUOTA : XFS_GROUP_QUOTA; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 998 | } |
| 999 | |
| 1000 | STATIC uint |
| 1001 | xfs_qm_import_flags( |
| 1002 | uint uflags) |
| 1003 | { |
| 1004 | uint flags = 0; |
| 1005 | |
| 1006 | if (uflags & XFS_QUOTA_UDQ_ACCT) |
| 1007 | flags |= XFS_UQUOTA_ACCT; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1008 | if (uflags & XFS_QUOTA_PDQ_ACCT) |
| 1009 | flags |= XFS_PQUOTA_ACCT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | if (uflags & XFS_QUOTA_GDQ_ACCT) |
| 1011 | flags |= XFS_GQUOTA_ACCT; |
| 1012 | if (uflags & XFS_QUOTA_UDQ_ENFD) |
| 1013 | flags |= XFS_UQUOTA_ENFD; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1014 | if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD)) |
| 1015 | flags |= XFS_OQUOTA_ENFD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1016 | return (flags); |
| 1017 | } |
| 1018 | |
| 1019 | |
| 1020 | STATIC uint |
| 1021 | xfs_qm_export_flags( |
| 1022 | uint flags) |
| 1023 | { |
| 1024 | uint uflags; |
| 1025 | |
| 1026 | uflags = 0; |
| 1027 | if (flags & XFS_UQUOTA_ACCT) |
| 1028 | uflags |= XFS_QUOTA_UDQ_ACCT; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1029 | if (flags & XFS_PQUOTA_ACCT) |
| 1030 | uflags |= XFS_QUOTA_PDQ_ACCT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | if (flags & XFS_GQUOTA_ACCT) |
| 1032 | uflags |= XFS_QUOTA_GDQ_ACCT; |
| 1033 | if (flags & XFS_UQUOTA_ENFD) |
| 1034 | uflags |= XFS_QUOTA_UDQ_ENFD; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1035 | if (flags & (XFS_OQUOTA_ENFD)) { |
| 1036 | uflags |= (flags & XFS_GQUOTA_ACCT) ? |
| 1037 | XFS_QUOTA_GDQ_ENFD : XFS_QUOTA_PDQ_ENFD; |
| 1038 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1039 | return (uflags); |
| 1040 | } |
| 1041 | |
| 1042 | |
| 1043 | /* |
| 1044 | * Go thru all the inodes in the file system, releasing their dquots. |
| 1045 | * Note that the mount structure gets modified to indicate that quotas are off |
| 1046 | * AFTER this, in the case of quotaoff. This also gets called from |
| 1047 | * xfs_rootumount. |
| 1048 | */ |
| 1049 | void |
| 1050 | xfs_qm_dqrele_all_inodes( |
| 1051 | struct xfs_mount *mp, |
| 1052 | uint flags) |
| 1053 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1054 | xfs_inode_t *ip, *topino; |
| 1055 | uint ireclaims; |
| 1056 | vnode_t *vp; |
| 1057 | boolean_t vnode_refd; |
| 1058 | |
| 1059 | ASSERT(mp->m_quotainfo); |
| 1060 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | XFS_MOUNT_ILOCK(mp); |
Christoph Hellwig | cdb6268 | 2005-09-02 16:24:19 +1000 | [diff] [blame] | 1062 | again: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | ip = mp->m_inodes; |
| 1064 | if (ip == NULL) { |
| 1065 | XFS_MOUNT_IUNLOCK(mp); |
| 1066 | return; |
| 1067 | } |
| 1068 | do { |
| 1069 | /* Skip markers inserted by xfs_sync */ |
| 1070 | if (ip->i_mount == NULL) { |
| 1071 | ip = ip->i_mnext; |
| 1072 | continue; |
| 1073 | } |
| 1074 | /* Root inode, rbmip and rsumip have associated blocks */ |
| 1075 | if (ip == XFS_QI_UQIP(mp) || ip == XFS_QI_GQIP(mp)) { |
| 1076 | ASSERT(ip->i_udquot == NULL); |
| 1077 | ASSERT(ip->i_gdquot == NULL); |
| 1078 | ip = ip->i_mnext; |
| 1079 | continue; |
| 1080 | } |
| 1081 | vp = XFS_ITOV_NULL(ip); |
| 1082 | if (!vp) { |
| 1083 | ASSERT(ip->i_udquot == NULL); |
| 1084 | ASSERT(ip->i_gdquot == NULL); |
| 1085 | ip = ip->i_mnext; |
| 1086 | continue; |
| 1087 | } |
| 1088 | vnode_refd = B_FALSE; |
| 1089 | if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1090 | ireclaims = mp->m_ireclaims; |
| 1091 | topino = mp->m_inodes; |
Christoph Hellwig | cdb6268 | 2005-09-02 16:24:19 +1000 | [diff] [blame] | 1092 | vp = vn_grab(vp); |
| 1093 | if (!vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1094 | goto again; |
Christoph Hellwig | cdb6268 | 2005-09-02 16:24:19 +1000 | [diff] [blame] | 1095 | |
| 1096 | XFS_MOUNT_IUNLOCK(mp); |
| 1097 | /* XXX restart limit ? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1098 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
| 1099 | vnode_refd = B_TRUE; |
| 1100 | } else { |
| 1101 | ireclaims = mp->m_ireclaims; |
| 1102 | topino = mp->m_inodes; |
| 1103 | XFS_MOUNT_IUNLOCK(mp); |
| 1104 | } |
| 1105 | |
| 1106 | /* |
| 1107 | * We don't keep the mountlock across the dqrele() call, |
| 1108 | * since it can take a while.. |
| 1109 | */ |
| 1110 | if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { |
| 1111 | xfs_qm_dqrele(ip->i_udquot); |
| 1112 | ip->i_udquot = NULL; |
| 1113 | } |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1114 | if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1115 | xfs_qm_dqrele(ip->i_gdquot); |
| 1116 | ip->i_gdquot = NULL; |
| 1117 | } |
| 1118 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
| 1119 | /* |
| 1120 | * Wait until we've dropped the ilock and mountlock to |
| 1121 | * do the vn_rele. Or be condemned to an eternity in the |
| 1122 | * inactive code in hell. |
| 1123 | */ |
| 1124 | if (vnode_refd) |
| 1125 | VN_RELE(vp); |
| 1126 | XFS_MOUNT_ILOCK(mp); |
| 1127 | /* |
| 1128 | * If an inode was inserted or removed, we gotta |
| 1129 | * start over again. |
| 1130 | */ |
| 1131 | if (topino != mp->m_inodes || mp->m_ireclaims != ireclaims) { |
| 1132 | /* XXX use a sentinel */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1133 | goto again; |
| 1134 | } |
| 1135 | ip = ip->i_mnext; |
| 1136 | } while (ip != mp->m_inodes); |
| 1137 | |
| 1138 | XFS_MOUNT_IUNLOCK(mp); |
| 1139 | } |
| 1140 | |
| 1141 | /*------------------------------------------------------------------------*/ |
| 1142 | #ifdef DEBUG |
| 1143 | /* |
| 1144 | * This contains all the test functions for XFS disk quotas. |
| 1145 | * Currently it does a quota accounting check. ie. it walks through |
| 1146 | * all inodes in the file system, calculating the dquot accounting fields, |
| 1147 | * and prints out any inconsistencies. |
| 1148 | */ |
| 1149 | xfs_dqhash_t *qmtest_udqtab; |
| 1150 | xfs_dqhash_t *qmtest_gdqtab; |
| 1151 | int qmtest_hashmask; |
| 1152 | int qmtest_nfails; |
| 1153 | mutex_t qcheck_lock; |
| 1154 | |
| 1155 | #define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \ |
| 1156 | (__psunsigned_t)(id)) & \ |
| 1157 | (qmtest_hashmask - 1)) |
| 1158 | |
| 1159 | #define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \ |
| 1160 | (qmtest_udqtab + \ |
| 1161 | DQTEST_HASHVAL(mp, id)) : \ |
| 1162 | (qmtest_gdqtab + \ |
| 1163 | DQTEST_HASHVAL(mp, id))) |
| 1164 | |
| 1165 | #define DQTEST_LIST_PRINT(l, NXT, title) \ |
| 1166 | { \ |
| 1167 | xfs_dqtest_t *dqp; int i = 0;\ |
| 1168 | cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \ |
| 1169 | for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \ |
| 1170 | dqp = (xfs_dqtest_t *)dqp->NXT) { \ |
| 1171 | cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \ |
| 1172 | ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \ |
| 1173 | dqp->d_bcount, dqp->d_icount); } \ |
| 1174 | } |
| 1175 | |
| 1176 | typedef struct dqtest { |
| 1177 | xfs_dqmarker_t q_lists; |
| 1178 | xfs_dqhash_t *q_hash; /* the hashchain header */ |
| 1179 | xfs_mount_t *q_mount; /* filesystem this relates to */ |
| 1180 | xfs_dqid_t d_id; /* user id or group id */ |
| 1181 | xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */ |
| 1182 | xfs_qcnt_t d_icount; /* # inodes owned by the user */ |
| 1183 | } xfs_dqtest_t; |
| 1184 | |
| 1185 | STATIC void |
| 1186 | xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp) |
| 1187 | { |
| 1188 | xfs_dquot_t *d; |
| 1189 | if (((d) = (h)->qh_next)) |
| 1190 | (d)->HL_PREVP = &((dqp)->HL_NEXT); |
| 1191 | (dqp)->HL_NEXT = d; |
| 1192 | (dqp)->HL_PREVP = &((h)->qh_next); |
| 1193 | (h)->qh_next = (xfs_dquot_t *)dqp; |
| 1194 | (h)->qh_version++; |
| 1195 | (h)->qh_nelems++; |
| 1196 | } |
| 1197 | STATIC void |
| 1198 | xfs_qm_dqtest_print( |
| 1199 | xfs_dqtest_t *d) |
| 1200 | { |
| 1201 | cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------"); |
| 1202 | cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1203 | cmn_err(CE_DEBUG, "---- fs = 0x%p", d->q_mount); |
| 1204 | cmn_err(CE_DEBUG, "---- bcount = %Lu (0x%x)", |
| 1205 | d->d_bcount, (int)d->d_bcount); |
| 1206 | cmn_err(CE_DEBUG, "---- icount = %Lu (0x%x)", |
| 1207 | d->d_icount, (int)d->d_icount); |
| 1208 | cmn_err(CE_DEBUG, "---------------------------"); |
| 1209 | } |
| 1210 | |
| 1211 | STATIC void |
| 1212 | xfs_qm_dqtest_failed( |
| 1213 | xfs_dqtest_t *d, |
| 1214 | xfs_dquot_t *dqp, |
| 1215 | char *reason, |
| 1216 | xfs_qcnt_t a, |
| 1217 | xfs_qcnt_t b, |
| 1218 | int error) |
| 1219 | { |
| 1220 | qmtest_nfails++; |
| 1221 | if (error) |
| 1222 | cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s", |
| 1223 | INT_GET(d->d_id, ARCH_CONVERT), error, reason); |
| 1224 | else |
| 1225 | cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]", |
| 1226 | INT_GET(d->d_id, ARCH_CONVERT), reason, (int)a, (int)b); |
| 1227 | xfs_qm_dqtest_print(d); |
| 1228 | if (dqp) |
| 1229 | xfs_qm_dqprint(dqp); |
| 1230 | } |
| 1231 | |
| 1232 | STATIC int |
| 1233 | xfs_dqtest_cmp2( |
| 1234 | xfs_dqtest_t *d, |
| 1235 | xfs_dquot_t *dqp) |
| 1236 | { |
| 1237 | int err = 0; |
| 1238 | if (INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) != d->d_icount) { |
| 1239 | xfs_qm_dqtest_failed(d, dqp, "icount mismatch", |
| 1240 | INT_GET(dqp->q_core.d_icount, ARCH_CONVERT), |
| 1241 | d->d_icount, 0); |
| 1242 | err++; |
| 1243 | } |
| 1244 | if (INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT) != d->d_bcount) { |
| 1245 | xfs_qm_dqtest_failed(d, dqp, "bcount mismatch", |
| 1246 | INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT), |
| 1247 | d->d_bcount, 0); |
| 1248 | err++; |
| 1249 | } |
| 1250 | if (INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT) && |
| 1251 | INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT) >= |
| 1252 | INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT)) { |
| 1253 | if (!dqp->q_core.d_btimer && dqp->q_core.d_id) { |
| 1254 | cmn_err(CE_DEBUG, |
| 1255 | "%d [%s] [0x%p] BLK TIMER NOT STARTED", |
| 1256 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); |
| 1257 | err++; |
| 1258 | } |
| 1259 | } |
| 1260 | if (INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT) && |
| 1261 | INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >= |
| 1262 | INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT)) { |
| 1263 | if (!dqp->q_core.d_itimer && dqp->q_core.d_id) { |
| 1264 | cmn_err(CE_DEBUG, |
| 1265 | "%d [%s] [0x%p] INO TIMER NOT STARTED", |
| 1266 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); |
| 1267 | err++; |
| 1268 | } |
| 1269 | } |
| 1270 | #ifdef QUOTADEBUG |
| 1271 | if (!err) { |
| 1272 | cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked", |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1273 | d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1274 | } |
| 1275 | #endif |
| 1276 | return (err); |
| 1277 | } |
| 1278 | |
| 1279 | STATIC void |
| 1280 | xfs_dqtest_cmp( |
| 1281 | xfs_dqtest_t *d) |
| 1282 | { |
| 1283 | xfs_dquot_t *dqp; |
| 1284 | int error; |
| 1285 | |
| 1286 | /* xfs_qm_dqtest_print(d); */ |
| 1287 | if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0, |
| 1288 | &dqp))) { |
| 1289 | xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error); |
| 1290 | return; |
| 1291 | } |
| 1292 | xfs_dqtest_cmp2(d, dqp); |
| 1293 | xfs_qm_dqput(dqp); |
| 1294 | } |
| 1295 | |
| 1296 | STATIC int |
| 1297 | xfs_qm_internalqcheck_dqget( |
| 1298 | xfs_mount_t *mp, |
| 1299 | xfs_dqid_t id, |
| 1300 | uint type, |
| 1301 | xfs_dqtest_t **O_dq) |
| 1302 | { |
| 1303 | xfs_dqtest_t *d; |
| 1304 | xfs_dqhash_t *h; |
| 1305 | |
| 1306 | h = DQTEST_HASH(mp, id, type); |
| 1307 | for (d = (xfs_dqtest_t *) h->qh_next; d != NULL; |
| 1308 | d = (xfs_dqtest_t *) d->HL_NEXT) { |
| 1309 | /* DQTEST_LIST_PRINT(h, HL_NEXT, "@@@@@ dqtestlist @@@@@"); */ |
| 1310 | if (d->d_id == id && mp == d->q_mount) { |
| 1311 | *O_dq = d; |
| 1312 | return (0); |
| 1313 | } |
| 1314 | } |
| 1315 | d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP); |
| 1316 | d->dq_flags = type; |
| 1317 | d->d_id = id; |
| 1318 | d->q_mount = mp; |
| 1319 | d->q_hash = h; |
| 1320 | xfs_qm_hashinsert(h, d); |
| 1321 | *O_dq = d; |
| 1322 | return (0); |
| 1323 | } |
| 1324 | |
| 1325 | STATIC void |
| 1326 | xfs_qm_internalqcheck_get_dquots( |
| 1327 | xfs_mount_t *mp, |
| 1328 | xfs_dqid_t uid, |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1329 | xfs_dqid_t projid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1330 | xfs_dqid_t gid, |
| 1331 | xfs_dqtest_t **ud, |
| 1332 | xfs_dqtest_t **gd) |
| 1333 | { |
| 1334 | if (XFS_IS_UQUOTA_ON(mp)) |
| 1335 | xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud); |
| 1336 | if (XFS_IS_GQUOTA_ON(mp)) |
| 1337 | xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd); |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1338 | else if (XFS_IS_PQUOTA_ON(mp)) |
| 1339 | xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1340 | } |
| 1341 | |
| 1342 | |
| 1343 | STATIC void |
| 1344 | xfs_qm_internalqcheck_dqadjust( |
| 1345 | xfs_inode_t *ip, |
| 1346 | xfs_dqtest_t *d) |
| 1347 | { |
| 1348 | d->d_icount++; |
| 1349 | d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks; |
| 1350 | } |
| 1351 | |
| 1352 | STATIC int |
| 1353 | xfs_qm_internalqcheck_adjust( |
| 1354 | xfs_mount_t *mp, /* mount point for filesystem */ |
| 1355 | xfs_ino_t ino, /* inode number to get data for */ |
| 1356 | void __user *buffer, /* not used */ |
| 1357 | int ubsize, /* not used */ |
| 1358 | void *private_data, /* not used */ |
| 1359 | xfs_daddr_t bno, /* starting block of inode cluster */ |
| 1360 | int *ubused, /* not used */ |
| 1361 | void *dip, /* not used */ |
| 1362 | int *res) /* bulkstat result code */ |
| 1363 | { |
| 1364 | xfs_inode_t *ip; |
| 1365 | xfs_dqtest_t *ud, *gd; |
| 1366 | uint lock_flags; |
| 1367 | boolean_t ipreleased; |
| 1368 | int error; |
| 1369 | |
| 1370 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
| 1371 | |
| 1372 | if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { |
| 1373 | *res = BULKSTAT_RV_NOTHING; |
| 1374 | qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n", |
| 1375 | (unsigned long long) ino, |
| 1376 | (unsigned long long) mp->m_sb.sb_uquotino, |
| 1377 | (unsigned long long) mp->m_sb.sb_gquotino); |
| 1378 | return XFS_ERROR(EINVAL); |
| 1379 | } |
| 1380 | ipreleased = B_FALSE; |
| 1381 | again: |
| 1382 | lock_flags = XFS_ILOCK_SHARED; |
| 1383 | if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) { |
| 1384 | *res = BULKSTAT_RV_NOTHING; |
| 1385 | return (error); |
| 1386 | } |
| 1387 | |
| 1388 | if (ip->i_d.di_mode == 0) { |
| 1389 | xfs_iput_new(ip, lock_flags); |
| 1390 | *res = BULKSTAT_RV_NOTHING; |
| 1391 | return XFS_ERROR(ENOENT); |
| 1392 | } |
| 1393 | |
| 1394 | /* |
| 1395 | * This inode can have blocks after eof which can get released |
| 1396 | * when we send it to inactive. Since we don't check the dquot |
| 1397 | * until the after all our calculations are done, we must get rid |
| 1398 | * of those now. |
| 1399 | */ |
| 1400 | if (! ipreleased) { |
| 1401 | xfs_iput(ip, lock_flags); |
| 1402 | ipreleased = B_TRUE; |
| 1403 | goto again; |
| 1404 | } |
| 1405 | xfs_qm_internalqcheck_get_dquots(mp, |
| 1406 | (xfs_dqid_t) ip->i_d.di_uid, |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1407 | (xfs_dqid_t) ip->i_d.di_projid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1408 | (xfs_dqid_t) ip->i_d.di_gid, |
| 1409 | &ud, &gd); |
| 1410 | if (XFS_IS_UQUOTA_ON(mp)) { |
| 1411 | ASSERT(ud); |
| 1412 | xfs_qm_internalqcheck_dqadjust(ip, ud); |
| 1413 | } |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1414 | if (XFS_IS_OQUOTA_ON(mp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | ASSERT(gd); |
| 1416 | xfs_qm_internalqcheck_dqadjust(ip, gd); |
| 1417 | } |
| 1418 | xfs_iput(ip, lock_flags); |
| 1419 | *res = BULKSTAT_RV_DIDONE; |
| 1420 | return (0); |
| 1421 | } |
| 1422 | |
| 1423 | |
| 1424 | /* PRIVATE, debugging */ |
| 1425 | int |
| 1426 | xfs_qm_internalqcheck( |
| 1427 | xfs_mount_t *mp) |
| 1428 | { |
| 1429 | xfs_ino_t lastino; |
| 1430 | int done, count; |
| 1431 | int i; |
| 1432 | xfs_dqtest_t *d, *e; |
| 1433 | xfs_dqhash_t *h1; |
| 1434 | int error; |
| 1435 | |
| 1436 | lastino = 0; |
| 1437 | qmtest_hashmask = 32; |
| 1438 | count = 5; |
| 1439 | done = 0; |
| 1440 | qmtest_nfails = 0; |
| 1441 | |
| 1442 | if (! XFS_IS_QUOTA_ON(mp)) |
| 1443 | return XFS_ERROR(ESRCH); |
| 1444 | |
| 1445 | xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC); |
| 1446 | XFS_bflush(mp->m_ddev_targp); |
| 1447 | xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC); |
| 1448 | XFS_bflush(mp->m_ddev_targp); |
| 1449 | |
| 1450 | mutex_lock(&qcheck_lock, PINOD); |
| 1451 | /* There should be absolutely no quota activity while this |
| 1452 | is going on. */ |
| 1453 | qmtest_udqtab = kmem_zalloc(qmtest_hashmask * |
| 1454 | sizeof(xfs_dqhash_t), KM_SLEEP); |
| 1455 | qmtest_gdqtab = kmem_zalloc(qmtest_hashmask * |
| 1456 | sizeof(xfs_dqhash_t), KM_SLEEP); |
| 1457 | do { |
| 1458 | /* |
| 1459 | * Iterate thru all the inodes in the file system, |
| 1460 | * adjusting the corresponding dquot counters |
| 1461 | */ |
| 1462 | if ((error = xfs_bulkstat(mp, &lastino, &count, |
| 1463 | xfs_qm_internalqcheck_adjust, NULL, |
| 1464 | 0, NULL, BULKSTAT_FG_IGET, &done))) { |
| 1465 | break; |
| 1466 | } |
| 1467 | } while (! done); |
| 1468 | if (error) { |
| 1469 | cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); |
| 1470 | } |
| 1471 | cmn_err(CE_DEBUG, "Checking results against system dquots"); |
| 1472 | for (i = 0; i < qmtest_hashmask; i++) { |
| 1473 | h1 = &qmtest_udqtab[i]; |
| 1474 | for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) { |
| 1475 | xfs_dqtest_cmp(d); |
| 1476 | e = (xfs_dqtest_t *) d->HL_NEXT; |
| 1477 | kmem_free(d, sizeof(xfs_dqtest_t)); |
| 1478 | d = e; |
| 1479 | } |
| 1480 | h1 = &qmtest_gdqtab[i]; |
| 1481 | for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) { |
| 1482 | xfs_dqtest_cmp(d); |
| 1483 | e = (xfs_dqtest_t *) d->HL_NEXT; |
| 1484 | kmem_free(d, sizeof(xfs_dqtest_t)); |
| 1485 | d = e; |
| 1486 | } |
| 1487 | } |
| 1488 | |
| 1489 | if (qmtest_nfails) { |
| 1490 | cmn_err(CE_DEBUG, "******** quotacheck failed ********"); |
| 1491 | cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails); |
| 1492 | } else { |
| 1493 | cmn_err(CE_DEBUG, "******** quotacheck successful! ********"); |
| 1494 | } |
| 1495 | kmem_free(qmtest_udqtab, qmtest_hashmask * sizeof(xfs_dqhash_t)); |
| 1496 | kmem_free(qmtest_gdqtab, qmtest_hashmask * sizeof(xfs_dqhash_t)); |
| 1497 | mutex_unlock(&qcheck_lock); |
| 1498 | return (qmtest_nfails); |
| 1499 | } |
| 1500 | |
| 1501 | #endif /* DEBUG */ |