1/* 2 * Copyright (c) 2000-2005 Silicon Graphics, Inc. 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 19#include <linux/capability.h> 20 21#include "xfs.h" 22#include "xfs_fs.h" 23#include "xfs_bit.h" 24#include "xfs_log.h" 25#include "xfs_inum.h" 26#include "xfs_trans.h" 27#include "xfs_sb.h" 28#include "xfs_ag.h" 29#include "xfs_alloc.h" 30#include "xfs_quota.h" 31#include "xfs_mount.h" 32#include "xfs_bmap_btree.h" 33#include "xfs_inode.h" 34#include "xfs_itable.h" 35#include "xfs_bmap.h" 36#include "xfs_rtalloc.h" 37#include "xfs_error.h" 38#include "xfs_attr.h" 39#include "xfs_buf_item.h" 40#include "xfs_utils.h" 41#include "xfs_qm.h" 42#include "xfs_trace.h" 43 44#ifdef DEBUG 45# define qdprintk(s, args...) cmn_err(CE_DEBUG, s, ## args) 46#else 47# define qdprintk(s, args...) do { } while (0) 48#endif 49 50STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); 51STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, 52 uint); 53STATIC uint xfs_qm_export_flags(uint); 54STATIC uint xfs_qm_export_qtype_flags(uint); 55STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *, 56 fs_disk_quota_t *); 57 58 59/* 60 * Turn off quota accounting and/or enforcement for all udquots and/or 61 * gdquots. Called only at unmount time. 62 * 63 * This assumes that there are no dquots of this file system cached 64 * incore, and modifies the ondisk dquot directly. Therefore, for example, 65 * it is an error to call this twice, without purging the cache. 66 */ 67int 68xfs_qm_scall_quotaoff( 69 xfs_mount_t *mp, 70 uint flags) 71{ 72 struct xfs_quotainfo *q = mp->m_quotainfo; 73 uint dqtype; 74 int error; 75 uint inactivate_flags; 76 xfs_qoff_logitem_t *qoffstart; 77 int nculprits; 78 79 /* 80 * No file system can have quotas enabled on disk but not in core. 81 * Note that quota utilities (like quotaoff) _expect_ 82 * errno == EEXIST here. 83 */ 84 if ((mp->m_qflags & flags) == 0) 85 return XFS_ERROR(EEXIST); 86 error = 0; 87 88 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); 89 90 /* 91 * We don't want to deal with two quotaoffs messing up each other, 92 * so we're going to serialize it. quotaoff isn't exactly a performance 93 * critical thing. 94 * If quotaoff, then we must be dealing with the root filesystem. 95 */ 96 ASSERT(q); 97 mutex_lock(&q->qi_quotaofflock); 98 99 /* 100 * If we're just turning off quota enforcement, change mp and go. 101 */ 102 if ((flags & XFS_ALL_QUOTA_ACCT) == 0) { 103 mp->m_qflags &= ~(flags); 104 105 spin_lock(&mp->m_sb_lock); 106 mp->m_sb.sb_qflags = mp->m_qflags; 107 spin_unlock(&mp->m_sb_lock); 108 mutex_unlock(&q->qi_quotaofflock); 109 110 error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS); 111 return (error); 112 } 113 114 dqtype = 0; 115 inactivate_flags = 0; 116 /* 117 * If accounting is off, we must turn enforcement off, clear the 118 * quota 'CHKD' certificate to make it known that we have to 119 * do a quotacheck the next time this quota is turned on. 120 */ 121 if (flags & XFS_UQUOTA_ACCT) { 122 dqtype |= XFS_QMOPT_UQUOTA; 123 flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD); 124 inactivate_flags |= XFS_UQUOTA_ACTIVE; 125 } 126 if (flags & XFS_GQUOTA_ACCT) { 127 dqtype |= XFS_QMOPT_GQUOTA; 128 flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); 129 inactivate_flags |= XFS_GQUOTA_ACTIVE; 130 } else if (flags & XFS_PQUOTA_ACCT) { 131 dqtype |= XFS_QMOPT_PQUOTA; 132 flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD); 133 inactivate_flags |= XFS_PQUOTA_ACTIVE; 134 } 135 136 /* 137 * Nothing to do? Don't complain. This happens when we're just 138 * turning off quota enforcement. 139 */ 140 if ((mp->m_qflags & flags) == 0) 141 goto out_unlock; 142 143 /* 144 * Write the LI_QUOTAOFF log record, and do SB changes atomically, 145 * and synchronously. If we fail to write, we should abort the 146 * operation as it cannot be recovered safely if we crash. 147 */ 148 error = xfs_qm_log_quotaoff(mp, &qoffstart, flags); 149 if (error) 150 goto out_unlock; 151 152 /* 153 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct 154 * to take care of the race between dqget and quotaoff. We don't take 155 * any special locks to reset these bits. All processes need to check 156 * these bits *after* taking inode lock(s) to see if the particular 157 * quota type is in the process of being turned off. If *ACTIVE, it is 158 * guaranteed that all dquot structures and all quotainode ptrs will all 159 * stay valid as long as that inode is kept locked. 160 * 161 * There is no turning back after this. 162 */ 163 mp->m_qflags &= ~inactivate_flags; 164 165 /* 166 * Give back all the dquot reference(s) held by inodes. 167 * Here we go thru every single incore inode in this file system, and 168 * do a dqrele on the i_udquot/i_gdquot that it may have. 169 * Essentially, as long as somebody has an inode locked, this guarantees 170 * that quotas will not be turned off. This is handy because in a 171 * transaction once we lock the inode(s) and check for quotaon, we can 172 * depend on the quota inodes (and other things) being valid as long as 173 * we keep the lock(s). 174 */ 175 xfs_qm_dqrele_all_inodes(mp, flags); 176 177 /* 178 * Next we make the changes in the quota flag in the mount struct. 179 * This isn't protected by a particular lock directly, because we 180 * don't want to take a mrlock everytime we depend on quotas being on. 181 */ 182 mp->m_qflags &= ~(flags); 183 184 /* 185 * Go through all the dquots of this file system and purge them, 186 * according to what was turned off. We may not be able to get rid 187 * of all dquots, because dquots can have temporary references that 188 * are not attached to inodes. eg. xfs_setattr, xfs_create. 189 * So, if we couldn't purge all the dquots from the filesystem, 190 * we can't get rid of the incore data structures. 191 */ 192 while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype))) 193 delay(10 * nculprits); 194 195 /* 196 * Transactions that had started before ACTIVE state bit was cleared 197 * could have logged many dquots, so they'd have higher LSNs than 198 * the first QUOTAOFF log record does. If we happen to crash when 199 * the tail of the log has gone past the QUOTAOFF record, but 200 * before the last dquot modification, those dquots __will__ 201 * recover, and that's not good. 202 * 203 * So, we have QUOTAOFF start and end logitems; the start 204 * logitem won't get overwritten until the end logitem appears... 205 */ 206 error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags); 207 if (error) { 208 /* We're screwed now. Shutdown is the only option. */ 209 xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); 210 goto out_unlock; 211 } 212 213 /* 214 * If quotas is completely disabled, close shop. 215 */ 216 if (((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET1) || 217 ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_SET2)) { 218 mutex_unlock(&q->qi_quotaofflock); 219 xfs_qm_destroy_quotainfo(mp); 220 return (0); 221 } 222 223 /* 224 * Release our quotainode references if we don't need them anymore. 225 */ 226 if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) { 227 IRELE(q->qi_uquotaip); 228 q->qi_uquotaip = NULL; 229 } 230 if ((dqtype & (XFS_QMOPT_GQUOTA|XFS_QMOPT_PQUOTA)) && q->qi_gquotaip) { 231 IRELE(q->qi_gquotaip); 232 q->qi_gquotaip = NULL; 233 } 234 235out_unlock: 236 mutex_unlock(&q->qi_quotaofflock); 237 return error; 238} 239 240STATIC int 241xfs_qm_scall_trunc_qfile( 242 struct xfs_mount *mp, 243 xfs_ino_t ino) 244{ 245 struct xfs_inode *ip; 246 struct xfs_trans *tp; 247 int error; 248 249 if (ino == NULLFSINO) 250 return 0; 251 252 error = xfs_iget(mp, NULL, ino, 0, 0, &ip); 253 if (error) 254 return error; 255 256 xfs_ilock(ip, XFS_IOLOCK_EXCL); 257 258 tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE); 259 error = xfs_trans_reserve(tp, 0, XFS_ITRUNCATE_LOG_RES(mp), 0, 260 XFS_TRANS_PERM_LOG_RES, 261 XFS_ITRUNCATE_LOG_COUNT); 262 if (error) { 263 xfs_trans_cancel(tp, 0); 264 xfs_iunlock(ip, XFS_IOLOCK_EXCL); 265 goto out_put; 266 } 267 268 xfs_ilock(ip, XFS_ILOCK_EXCL); 269 xfs_trans_ijoin(tp, ip); 270 271 error = xfs_itruncate_finish(&tp, ip, 0, XFS_DATA_FORK, 1); 272 if (error) { 273 xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | 274 XFS_TRANS_ABORT); 275 goto out_unlock; 276 } 277 278 xfs_ichgtime(ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); 279 error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES); 280 281out_unlock: 282 xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL); 283out_put: 284 IRELE(ip); 285 return error; 286} 287 288int 289xfs_qm_scall_trunc_qfiles( 290 xfs_mount_t *mp, 291 uint flags) 292{ 293 int error = 0, error2 = 0; 294 295 if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) { 296 qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags); 297 return XFS_ERROR(EINVAL); 298 } 299 300 if (flags & XFS_DQ_USER) 301 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino); 302 if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) 303 error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino); 304 305 return error ? error : error2; 306} 307 308/* 309 * Switch on (a given) quota enforcement for a filesystem. This takes 310 * effect immediately. 311 * (Switching on quota accounting must be done at mount time.) 312 */ 313int 314xfs_qm_scall_quotaon( 315 xfs_mount_t *mp, 316 uint flags) 317{ 318 int error; 319 uint qf; 320 uint accflags; 321 __int64_t sbflags; 322 323 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); 324 /* 325 * Switching on quota accounting must be done at mount time. 326 */ 327 accflags = flags & XFS_ALL_QUOTA_ACCT; 328 flags &= ~(XFS_ALL_QUOTA_ACCT); 329 330 sbflags = 0; 331 332 if (flags == 0) { 333 qdprintk("quotaon: zero flags, m_qflags=%x\n", mp->m_qflags); 334 return XFS_ERROR(EINVAL); 335 } 336 337 /* No fs can turn on quotas with a delayed effect */ 338 ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0); 339 340 /* 341 * Can't enforce without accounting. We check the superblock 342 * qflags here instead of m_qflags because rootfs can have 343 * quota acct on ondisk without m_qflags' knowing. 344 */ 345 if (((flags & XFS_UQUOTA_ACCT) == 0 && 346 (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && 347 (flags & XFS_UQUOTA_ENFD)) 348 || 349 ((flags & XFS_PQUOTA_ACCT) == 0 && 350 (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && 351 (flags & XFS_GQUOTA_ACCT) == 0 && 352 (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && 353 (flags & XFS_OQUOTA_ENFD))) { 354 qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n", 355 flags, mp->m_sb.sb_qflags); 356 return XFS_ERROR(EINVAL); 357 } 358 /* 359 * If everything's upto-date incore, then don't waste time. 360 */ 361 if ((mp->m_qflags & flags) == flags) 362 return XFS_ERROR(EEXIST); 363 364 /* 365 * Change sb_qflags on disk but not incore mp->qflags 366 * if this is the root filesystem. 367 */ 368 spin_lock(&mp->m_sb_lock); 369 qf = mp->m_sb.sb_qflags; 370 mp->m_sb.sb_qflags = qf | flags; 371 spin_unlock(&mp->m_sb_lock); 372 373 /* 374 * There's nothing to change if it's the same. 375 */ 376 if ((qf & flags) == flags && sbflags == 0) 377 return XFS_ERROR(EEXIST); 378 sbflags |= XFS_SB_QFLAGS; 379 380 if ((error = xfs_qm_write_sb_changes(mp, sbflags))) 381 return (error); 382 /* 383 * If we aren't trying to switch on quota enforcement, we are done. 384 */ 385 if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) != 386 (mp->m_qflags & XFS_UQUOTA_ACCT)) || 387 ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != 388 (mp->m_qflags & XFS_PQUOTA_ACCT)) || 389 ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != 390 (mp->m_qflags & XFS_GQUOTA_ACCT)) || 391 (flags & XFS_ALL_QUOTA_ENFD) == 0) 392 return (0); 393 394 if (! XFS_IS_QUOTA_RUNNING(mp)) 395 return XFS_ERROR(ESRCH); 396 397 /* 398 * Switch on quota enforcement in core. 399 */ 400 mutex_lock(&mp->m_quotainfo->qi_quotaofflock); 401 mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); 402 mutex_unlock(&mp->m_quotainfo->qi_quotaofflock); 403 404 return (0); 405} 406 407 408/* 409 * Return quota status information, such as uquota-off, enforcements, etc. 410 */ 411int 412xfs_qm_scall_getqstat( 413 struct xfs_mount *mp, 414 struct fs_quota_stat *out) 415{ 416 struct xfs_quotainfo *q = mp->m_quotainfo; 417 struct xfs_inode *uip, *gip; 418 boolean_t tempuqip, tempgqip; 419 420 uip = gip = NULL; 421 tempuqip = tempgqip = B_FALSE; 422 memset(out, 0, sizeof(fs_quota_stat_t)); 423 424 out->qs_version = FS_QSTAT_VERSION; 425 if (!xfs_sb_version_hasquota(&mp->m_sb)) { 426 out->qs_uquota.qfs_ino = NULLFSINO; 427 out->qs_gquota.qfs_ino = NULLFSINO; 428 return (0); 429 } 430 out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags & 431 (XFS_ALL_QUOTA_ACCT| 432 XFS_ALL_QUOTA_ENFD)); 433 out->qs_pad = 0; 434 out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino; 435 out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino; 436 437 if (q) { 438 uip = q->qi_uquotaip; 439 gip = q->qi_gquotaip; 440 } 441 if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) { 442 if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 443 0, 0, &uip) == 0) 444 tempuqip = B_TRUE; 445 } 446 if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) { 447 if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 448 0, 0, &gip) == 0) 449 tempgqip = B_TRUE; 450 } 451 if (uip) { 452 out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks; 453 out->qs_uquota.qfs_nextents = uip->i_d.di_nextents; 454 if (tempuqip) 455 IRELE(uip); 456 } 457 if (gip) { 458 out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks; 459 out->qs_gquota.qfs_nextents = gip->i_d.di_nextents; 460 if (tempgqip) 461 IRELE(gip); 462 } 463 if (q) { 464 out->qs_incoredqs = q->qi_dquots; 465 out->qs_btimelimit = q->qi_btimelimit; 466 out->qs_itimelimit = q->qi_itimelimit; 467 out->qs_rtbtimelimit = q->qi_rtbtimelimit; 468 out->qs_bwarnlimit = q->qi_bwarnlimit; 469 out->qs_iwarnlimit = q->qi_iwarnlimit; 470 } 471 return 0; 472} 473 474#define XFS_DQ_MASK \ 475 (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK) 476 477/* 478 * Adjust quota limits, and start/stop timers accordingly. 479 */ 480int 481xfs_qm_scall_setqlim( 482 xfs_mount_t *mp, 483 xfs_dqid_t id, 484 uint type, 485 fs_disk_quota_t *newlim) 486{ 487 struct xfs_quotainfo *q = mp->m_quotainfo; 488 xfs_disk_dquot_t *ddq; 489 xfs_dquot_t *dqp; 490 xfs_trans_t *tp; 491 int error; 492 xfs_qcnt_t hard, soft; 493 494 if (newlim->d_fieldmask & ~XFS_DQ_MASK) 495 return EINVAL; 496 if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0) 497 return 0; 498 499 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM); 500 if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128, 501 0, 0, XFS_DEFAULT_LOG_COUNT))) { 502 xfs_trans_cancel(tp, 0); 503 return (error); 504 } 505 506 /* 507 * We don't want to race with a quotaoff so take the quotaoff lock. 508 * (We don't hold an inode lock, so there's nothing else to stop 509 * a quotaoff from happening). (XXXThis doesn't currently happen 510 * because we take the vfslock before calling xfs_qm_sysent). 511 */ 512 mutex_lock(&q->qi_quotaofflock); 513 514 /* 515 * Get the dquot (locked), and join it to the transaction. 516 * Allocate the dquot if this doesn't exist. 517 */ 518 if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) { 519 xfs_trans_cancel(tp, XFS_TRANS_ABORT); 520 ASSERT(error != ENOENT); 521 goto out_unlock; 522 } 523 xfs_trans_dqjoin(tp, dqp); 524 ddq = &dqp->q_core; 525 526 /* 527 * Make sure that hardlimits are >= soft limits before changing. 528 */ 529 hard = (newlim->d_fieldmask & FS_DQ_BHARD) ? 530 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) : 531 be64_to_cpu(ddq->d_blk_hardlimit); 532 soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ? 533 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) : 534 be64_to_cpu(ddq->d_blk_softlimit); 535 if (hard == 0 || hard >= soft) { 536 ddq->d_blk_hardlimit = cpu_to_be64(hard); 537 ddq->d_blk_softlimit = cpu_to_be64(soft); 538 if (id == 0) { 539 q->qi_bhardlimit = hard; 540 q->qi_bsoftlimit = soft; 541 } 542 } else { 543 qdprintk("blkhard %Ld < blksoft %Ld\n", hard, soft); 544 } 545 hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ? 546 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) : 547 be64_to_cpu(ddq->d_rtb_hardlimit); 548 soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ? 549 (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) : 550 be64_to_cpu(ddq->d_rtb_softlimit); 551 if (hard == 0 || hard >= soft) { 552 ddq->d_rtb_hardlimit = cpu_to_be64(hard); 553 ddq->d_rtb_softlimit = cpu_to_be64(soft); 554 if (id == 0) { 555 q->qi_rtbhardlimit = hard; 556 q->qi_rtbsoftlimit = soft; 557 } 558 } else { 559 qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft); 560 } 561 562 hard = (newlim->d_fieldmask & FS_DQ_IHARD) ? 563 (xfs_qcnt_t) newlim->d_ino_hardlimit : 564 be64_to_cpu(ddq->d_ino_hardlimit); 565 soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ? 566 (xfs_qcnt_t) newlim->d_ino_softlimit : 567 be64_to_cpu(ddq->d_ino_softlimit); 568 if (hard == 0 || hard >= soft) { 569 ddq->d_ino_hardlimit = cpu_to_be64(hard); 570 ddq->d_ino_softlimit = cpu_to_be64(soft); 571 if (id == 0) { 572 q->qi_ihardlimit = hard; 573 q->qi_isoftlimit = soft; 574 } 575 } else { 576 qdprintk("ihard %Ld < isoft %Ld\n", hard, soft); 577 } 578 579 /* 580 * Update warnings counter(s) if requested 581 */ 582 if (newlim->d_fieldmask & FS_DQ_BWARNS) 583 ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns); 584 if (newlim->d_fieldmask & FS_DQ_IWARNS) 585 ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns); 586 if (newlim->d_fieldmask & FS_DQ_RTBWARNS) 587 ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns); 588 589 if (id == 0) { 590 /* 591 * Timelimits for the super user set the relative time 592 * the other users can be over quota for this file system. 593 * If it is zero a default is used. Ditto for the default 594 * soft and hard limit values (already done, above), and 595 * for warnings. 596 */ 597 if (newlim->d_fieldmask & FS_DQ_BTIMER) { 598 q->qi_btimelimit = newlim->d_btimer; 599 ddq->d_btimer = cpu_to_be32(newlim->d_btimer); 600 } 601 if (newlim->d_fieldmask & FS_DQ_ITIMER) { 602 q->qi_itimelimit = newlim->d_itimer; 603 ddq->d_itimer = cpu_to_be32(newlim->d_itimer); 604 } 605 if (newlim->d_fieldmask & FS_DQ_RTBTIMER) { 606 q->qi_rtbtimelimit = newlim->d_rtbtimer; 607 ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer); 608 } 609 if (newlim->d_fieldmask & FS_DQ_BWARNS) 610 q->qi_bwarnlimit = newlim->d_bwarns; 611 if (newlim->d_fieldmask & FS_DQ_IWARNS) 612 q->qi_iwarnlimit = newlim->d_iwarns; 613 if (newlim->d_fieldmask & FS_DQ_RTBWARNS) 614 q->qi_rtbwarnlimit = newlim->d_rtbwarns; 615 } else { 616 /* 617 * If the user is now over quota, start the timelimit. 618 * The user will not be 'warned'. 619 * Note that we keep the timers ticking, whether enforcement 620 * is on or off. We don't really want to bother with iterating 621 * over all ondisk dquots and turning the timers on/off. 622 */ 623 xfs_qm_adjust_dqtimers(mp, ddq); 624 } 625 dqp->dq_flags |= XFS_DQ_DIRTY; 626 xfs_trans_log_dquot(tp, dqp); 627 628 error = xfs_trans_commit(tp, 0); 629 xfs_qm_dqprint(dqp); 630 xfs_qm_dqrele(dqp); 631 632 out_unlock: 633 mutex_unlock(&q->qi_quotaofflock); 634 return error; 635} 636 637int 638xfs_qm_scall_getquota( 639 xfs_mount_t *mp, 640 xfs_dqid_t id, 641 uint type, 642 fs_disk_quota_t *out) 643{ 644 xfs_dquot_t *dqp; 645 int error; 646 647 /* 648 * Try to get the dquot. We don't want it allocated on disk, so 649 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't 650 * exist, we'll get ENOENT back. 651 */ 652 if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) { 653 return (error); 654 } 655 656 /* 657 * If everything's NULL, this dquot doesn't quite exist as far as 658 * our utility programs are concerned. 659 */ 660 if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) { 661 xfs_qm_dqput(dqp); 662 return XFS_ERROR(ENOENT); 663 } 664 /* xfs_qm_dqprint(dqp); */ 665 /* 666 * Convert the disk dquot to the exportable format 667 */ 668 xfs_qm_export_dquot(mp, &dqp->q_core, out); 669 xfs_qm_dqput(dqp); 670 return (error ? XFS_ERROR(EFAULT) : 0); 671} 672 673 674STATIC int 675xfs_qm_log_quotaoff_end( 676 xfs_mount_t *mp, 677 xfs_qoff_logitem_t *startqoff, 678 uint flags) 679{ 680 xfs_trans_t *tp; 681 int error; 682 xfs_qoff_logitem_t *qoffi; 683 684 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END); 685 686 if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2, 687 0, 0, XFS_DEFAULT_LOG_COUNT))) { 688 xfs_trans_cancel(tp, 0); 689 return (error); 690 } 691 692 qoffi = xfs_trans_get_qoff_item(tp, startqoff, 693 flags & XFS_ALL_QUOTA_ACCT); 694 xfs_trans_log_quotaoff_item(tp, qoffi); 695 696 /* 697 * We have to make sure that the transaction is secure on disk before we 698 * return and actually stop quota accounting. So, make it synchronous. 699 * We don't care about quotoff's performance. 700 */ 701 xfs_trans_set_sync(tp); 702 error = xfs_trans_commit(tp, 0); 703 return (error); 704} 705 706 707STATIC int 708xfs_qm_log_quotaoff( 709 xfs_mount_t *mp, 710 xfs_qoff_logitem_t **qoffstartp, 711 uint flags) 712{ 713 xfs_trans_t *tp; 714 int error; 715 xfs_qoff_logitem_t *qoffi=NULL; 716 uint oldsbqflag=0; 717 718 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF); 719 if ((error = xfs_trans_reserve(tp, 0, 720 sizeof(xfs_qoff_logitem_t) * 2 + 721 mp->m_sb.sb_sectsize + 128, 722 0, 723 0, 724 XFS_DEFAULT_LOG_COUNT))) { 725 goto error0; 726 } 727 728 qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); 729 xfs_trans_log_quotaoff_item(tp, qoffi); 730 731 spin_lock(&mp->m_sb_lock); 732 oldsbqflag = mp->m_sb.sb_qflags; 733 mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; 734 spin_unlock(&mp->m_sb_lock); 735 736 xfs_mod_sb(tp, XFS_SB_QFLAGS); 737 738 /* 739 * We have to make sure that the transaction is secure on disk before we 740 * return and actually stop quota accounting. So, make it synchronous. 741 * We don't care about quotoff's performance. 742 */ 743 xfs_trans_set_sync(tp); 744 error = xfs_trans_commit(tp, 0); 745 746error0: 747 if (error) { 748 xfs_trans_cancel(tp, 0); 749 /* 750 * No one else is modifying sb_qflags, so this is OK. 751 * We still hold the quotaofflock. 752 */ 753 spin_lock(&mp->m_sb_lock); 754 mp->m_sb.sb_qflags = oldsbqflag; 755 spin_unlock(&mp->m_sb_lock); 756 } 757 *qoffstartp = qoffi; 758 return (error); 759} 760 761 762/* 763 * Translate an internal style on-disk-dquot to the exportable format. 764 * The main differences are that the counters/limits are all in Basic 765 * Blocks (BBs) instead of the internal FSBs, and all on-disk data has 766 * to be converted to the native endianness. 767 */ 768STATIC void 769xfs_qm_export_dquot( 770 xfs_mount_t *mp, 771 xfs_disk_dquot_t *src, 772 struct fs_disk_quota *dst) 773{ 774 memset(dst, 0, sizeof(*dst)); 775 dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */ 776 dst->d_flags = xfs_qm_export_qtype_flags(src->d_flags); 777 dst->d_id = be32_to_cpu(src->d_id); 778 dst->d_blk_hardlimit = 779 XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_hardlimit)); 780 dst->d_blk_softlimit = 781 XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_softlimit)); 782 dst->d_ino_hardlimit = be64_to_cpu(src->d_ino_hardlimit); 783 dst->d_ino_softlimit = be64_to_cpu(src->d_ino_softlimit); 784 dst->d_bcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_bcount)); 785 dst->d_icount = be64_to_cpu(src->d_icount); 786 dst->d_btimer = be32_to_cpu(src->d_btimer); 787 dst->d_itimer = be32_to_cpu(src->d_itimer); 788 dst->d_iwarns = be16_to_cpu(src->d_iwarns); 789 dst->d_bwarns = be16_to_cpu(src->d_bwarns); 790 dst->d_rtb_hardlimit = 791 XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_hardlimit)); 792 dst->d_rtb_softlimit = 793 XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_softlimit)); 794 dst->d_rtbcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtbcount)); 795 dst->d_rtbtimer = be32_to_cpu(src->d_rtbtimer); 796 dst->d_rtbwarns = be16_to_cpu(src->d_rtbwarns); 797 798 /* 799 * Internally, we don't reset all the timers when quota enforcement 800 * gets turned off. No need to confuse the user level code, 801 * so return zeroes in that case. 802 */ 803 if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) || 804 (!XFS_IS_OQUOTA_ENFORCED(mp) && 805 (src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) { 806 dst->d_btimer = 0; 807 dst->d_itimer = 0; 808 dst->d_rtbtimer = 0; 809 } 810 811#ifdef DEBUG 812 if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) || 813 (XFS_IS_OQUOTA_ENFORCED(mp) && 814 (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) && 815 dst->d_id != 0) { 816 if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) && 817 (dst->d_blk_softlimit > 0)) { 818 ASSERT(dst->d_btimer != 0); 819 } 820 if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) && 821 (dst->d_ino_softlimit > 0)) { 822 ASSERT(dst->d_itimer != 0); 823 } 824 } 825#endif 826} 827 828STATIC uint 829xfs_qm_export_qtype_flags( 830 uint flags) 831{ 832 /* 833 * Can't be more than one, or none. 834 */ 835 ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) != 836 (FS_PROJ_QUOTA | FS_USER_QUOTA)); 837 ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) != 838 (FS_PROJ_QUOTA | FS_GROUP_QUOTA)); 839 ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) != 840 (FS_USER_QUOTA | FS_GROUP_QUOTA)); 841 ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0); 842 843 return (flags & XFS_DQ_USER) ? 844 FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ? 845 FS_PROJ_QUOTA : FS_GROUP_QUOTA; 846} 847 848STATIC uint 849xfs_qm_export_flags( 850 uint flags) 851{ 852 uint uflags; 853 854 uflags = 0; 855 if (flags & XFS_UQUOTA_ACCT) 856 uflags |= FS_QUOTA_UDQ_ACCT; 857 if (flags & XFS_PQUOTA_ACCT) 858 uflags |= FS_QUOTA_PDQ_ACCT; 859 if (flags & XFS_GQUOTA_ACCT) 860 uflags |= FS_QUOTA_GDQ_ACCT; 861 if (flags & XFS_UQUOTA_ENFD) 862 uflags |= FS_QUOTA_UDQ_ENFD; 863 if (flags & (XFS_OQUOTA_ENFD)) { 864 uflags |= (flags & XFS_GQUOTA_ACCT) ? 865 FS_QUOTA_GDQ_ENFD : FS_QUOTA_PDQ_ENFD; 866 } 867 return (uflags); 868} 869 870 871STATIC int 872xfs_dqrele_inode( 873 struct xfs_inode *ip, 874 struct xfs_perag *pag, 875 int flags) 876{ 877 int error; 878 879 /* skip quota inodes */ 880 if (ip == ip->i_mount->m_quotainfo->qi_uquotaip || 881 ip == ip->i_mount->m_quotainfo->qi_gquotaip) { 882 ASSERT(ip->i_udquot == NULL); 883 ASSERT(ip->i_gdquot == NULL); 884 read_unlock(&pag->pag_ici_lock); 885 return 0; 886 } 887 888 error = xfs_sync_inode_valid(ip, pag); 889 if (error) 890 return error; 891 892 xfs_ilock(ip, XFS_ILOCK_EXCL); 893 if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) { 894 xfs_qm_dqrele(ip->i_udquot); 895 ip->i_udquot = NULL; 896 } 897 if (flags & (XFS_PQUOTA_ACCT|XFS_GQUOTA_ACCT) && ip->i_gdquot) { 898 xfs_qm_dqrele(ip->i_gdquot); 899 ip->i_gdquot = NULL; 900 } 901 xfs_iunlock(ip, XFS_ILOCK_EXCL); 902 903 IRELE(ip); 904 return 0; 905} 906 907 908/* 909 * Go thru all the inodes in the file system, releasing their dquots. 910 * 911 * Note that the mount structure gets modified to indicate that quotas are off 912 * AFTER this, in the case of quotaoff. 913 */ 914void 915xfs_qm_dqrele_all_inodes( 916 struct xfs_mount *mp, 917 uint flags) 918{ 919 ASSERT(mp->m_quotainfo); 920 xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, 921 XFS_ICI_NO_TAG, 0, NULL); 922} 923 924/*------------------------------------------------------------------------*/ 925#ifdef DEBUG 926/* 927 * This contains all the test functions for XFS disk quotas. 928 * Currently it does a quota accounting check. ie. it walks through 929 * all inodes in the file system, calculating the dquot accounting fields, 930 * and prints out any inconsistencies. 931 */ 932xfs_dqhash_t *qmtest_udqtab; 933xfs_dqhash_t *qmtest_gdqtab; 934int qmtest_hashmask; 935int qmtest_nfails; 936struct mutex qcheck_lock; 937 938#define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \ 939 (__psunsigned_t)(id)) & \ 940 (qmtest_hashmask - 1)) 941 942#define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \ 943 (qmtest_udqtab + \ 944 DQTEST_HASHVAL(mp, id)) : \ 945 (qmtest_gdqtab + \ 946 DQTEST_HASHVAL(mp, id))) 947 948#define DQTEST_LIST_PRINT(l, NXT, title) \ 949{ \ 950 xfs_dqtest_t *dqp; int i = 0;\ 951 cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \ 952 for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \ 953 dqp = (xfs_dqtest_t *)dqp->NXT) { \ 954 cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \ 955 ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \ 956 dqp->d_bcount, dqp->d_icount); } \ 957} 958 959typedef struct dqtest { 960 uint dq_flags; /* various flags (XFS_DQ_*) */ 961 struct list_head q_hashlist; 962 xfs_dqhash_t *q_hash; /* the hashchain header */ 963 xfs_mount_t *q_mount; /* filesystem this relates to */ 964 xfs_dqid_t d_id; /* user id or group id */ 965 xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */ 966 xfs_qcnt_t d_icount; /* # inodes owned by the user */ 967} xfs_dqtest_t; 968 969STATIC void 970xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp) 971{ 972 list_add(&dqp->q_hashlist, &h->qh_list); 973 h->qh_version++; 974 h->qh_nelems++; 975} 976STATIC void 977xfs_qm_dqtest_print( 978 xfs_dqtest_t *d) 979{ 980 cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------"); 981 cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id); 982 cmn_err(CE_DEBUG, "---- fs = 0x%p", d->q_mount); 983 cmn_err(CE_DEBUG, "---- bcount = %Lu (0x%x)", 984 d->d_bcount, (int)d->d_bcount); 985 cmn_err(CE_DEBUG, "---- icount = %Lu (0x%x)", 986 d->d_icount, (int)d->d_icount); 987 cmn_err(CE_DEBUG, "---------------------------"); 988} 989 990STATIC void 991xfs_qm_dqtest_failed( 992 xfs_dqtest_t *d, 993 xfs_dquot_t *dqp, 994 char *reason, 995 xfs_qcnt_t a, 996 xfs_qcnt_t b, 997 int error) 998{ 999 qmtest_nfails++; 1000 if (error) 1001 cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s", 1002 d->d_id, error, reason); 1003 else 1004 cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]", 1005 d->d_id, reason, (int)a, (int)b); 1006 xfs_qm_dqtest_print(d); 1007 if (dqp) 1008 xfs_qm_dqprint(dqp); 1009} 1010 1011STATIC int 1012xfs_dqtest_cmp2( 1013 xfs_dqtest_t *d, 1014 xfs_dquot_t *dqp) 1015{ 1016 int err = 0; 1017 if (be64_to_cpu(dqp->q_core.d_icount) != d->d_icount) { 1018 xfs_qm_dqtest_failed(d, dqp, "icount mismatch", 1019 be64_to_cpu(dqp->q_core.d_icount), 1020 d->d_icount, 0); 1021 err++; 1022 } 1023 if (be64_to_cpu(dqp->q_core.d_bcount) != d->d_bcount) { 1024 xfs_qm_dqtest_failed(d, dqp, "bcount mismatch", 1025 be64_to_cpu(dqp->q_core.d_bcount), 1026 d->d_bcount, 0); 1027 err++; 1028 } 1029 if (dqp->q_core.d_blk_softlimit && 1030 be64_to_cpu(dqp->q_core.d_bcount) >= 1031 be64_to_cpu(dqp->q_core.d_blk_softlimit)) { 1032 if (!dqp->q_core.d_btimer && dqp->q_core.d_id) { 1033 cmn_err(CE_DEBUG, 1034 "%d [%s] [0x%p] BLK TIMER NOT STARTED", 1035 d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); 1036 err++; 1037 } 1038 } 1039 if (dqp->q_core.d_ino_softlimit && 1040 be64_to_cpu(dqp->q_core.d_icount) >= 1041 be64_to_cpu(dqp->q_core.d_ino_softlimit)) { 1042 if (!dqp->q_core.d_itimer && dqp->q_core.d_id) { 1043 cmn_err(CE_DEBUG, 1044 "%d [%s] [0x%p] INO TIMER NOT STARTED", 1045 d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); 1046 err++; 1047 } 1048 } 1049#ifdef QUOTADEBUG 1050 if (!err) { 1051 cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked", 1052 d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount); 1053 } 1054#endif 1055 return (err); 1056} 1057 1058STATIC void 1059xfs_dqtest_cmp( 1060 xfs_dqtest_t *d) 1061{ 1062 xfs_dquot_t *dqp; 1063 int error; 1064 1065 /* xfs_qm_dqtest_print(d); */ 1066 if ((error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0, 1067 &dqp))) { 1068 xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error); 1069 return; 1070 } 1071 xfs_dqtest_cmp2(d, dqp); 1072 xfs_qm_dqput(dqp); 1073} 1074 1075STATIC int 1076xfs_qm_internalqcheck_dqget( 1077 xfs_mount_t *mp, 1078 xfs_dqid_t id, 1079 uint type, 1080 xfs_dqtest_t **O_dq) 1081{ 1082 xfs_dqtest_t *d; 1083 xfs_dqhash_t *h; 1084 1085 h = DQTEST_HASH(mp, id, type); 1086 list_for_each_entry(d, &h->qh_list, q_hashlist) { 1087 if (d->d_id == id && mp == d->q_mount) { 1088 *O_dq = d; 1089 return (0); 1090 } 1091 } 1092 d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP); 1093 d->dq_flags = type; 1094 d->d_id = id; 1095 d->q_mount = mp; 1096 d->q_hash = h; 1097 INIT_LIST_HEAD(&d->q_hashlist); 1098 xfs_qm_hashinsert(h, d); 1099 *O_dq = d; 1100 return (0); 1101} 1102 1103STATIC void 1104xfs_qm_internalqcheck_get_dquots( 1105 xfs_mount_t *mp, 1106 xfs_dqid_t uid, 1107 xfs_dqid_t projid, 1108 xfs_dqid_t gid, 1109 xfs_dqtest_t **ud, 1110 xfs_dqtest_t **gd) 1111{ 1112 if (XFS_IS_UQUOTA_ON(mp)) 1113 xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud); 1114 if (XFS_IS_GQUOTA_ON(mp)) 1115 xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd); 1116 else if (XFS_IS_PQUOTA_ON(mp)) 1117 xfs_qm_internalqcheck_dqget(mp, projid, XFS_DQ_PROJ, gd); 1118} 1119 1120 1121STATIC void 1122xfs_qm_internalqcheck_dqadjust( 1123 xfs_inode_t *ip, 1124 xfs_dqtest_t *d) 1125{ 1126 d->d_icount++; 1127 d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks; 1128} 1129 1130STATIC int 1131xfs_qm_internalqcheck_adjust( 1132 xfs_mount_t *mp, /* mount point for filesystem */ 1133 xfs_ino_t ino, /* inode number to get data for */ 1134 void __user *buffer, /* not used */ 1135 int ubsize, /* not used */ 1136 int *ubused, /* not used */ 1137 int *res) /* bulkstat result code */ 1138{ 1139 xfs_inode_t *ip; 1140 xfs_dqtest_t *ud, *gd; 1141 uint lock_flags; 1142 boolean_t ipreleased; 1143 int error; 1144 1145 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 1146 1147 if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) { 1148 *res = BULKSTAT_RV_NOTHING; 1149 qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n", 1150 (unsigned long long) ino, 1151 (unsigned long long) mp->m_sb.sb_uquotino, 1152 (unsigned long long) mp->m_sb.sb_gquotino); 1153 return XFS_ERROR(EINVAL); 1154 } 1155 ipreleased = B_FALSE; 1156 again: 1157 lock_flags = XFS_ILOCK_SHARED; 1158 if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip))) { 1159 *res = BULKSTAT_RV_NOTHING; 1160 return (error); 1161 } 1162 1163 /* 1164 * This inode can have blocks after eof which can get released 1165 * when we send it to inactive. Since we don't check the dquot 1166 * until the after all our calculations are done, we must get rid 1167 * of those now. 1168 */ 1169 if (! ipreleased) { 1170 xfs_iunlock(ip, lock_flags); 1171 IRELE(ip); 1172 ipreleased = B_TRUE; 1173 goto again; 1174 } 1175 xfs_qm_internalqcheck_get_dquots(mp, 1176 (xfs_dqid_t) ip->i_d.di_uid, 1177 (xfs_dqid_t) ip->i_d.di_projid, 1178 (xfs_dqid_t) ip->i_d.di_gid, 1179 &ud, &gd); 1180 if (XFS_IS_UQUOTA_ON(mp)) { 1181 ASSERT(ud); 1182 xfs_qm_internalqcheck_dqadjust(ip, ud); 1183 } 1184 if (XFS_IS_OQUOTA_ON(mp)) { 1185 ASSERT(gd); 1186 xfs_qm_internalqcheck_dqadjust(ip, gd); 1187 } 1188 xfs_iunlock(ip, lock_flags); 1189 IRELE(ip); 1190 *res = BULKSTAT_RV_DIDONE; 1191 return (0); 1192} 1193 1194 1195/* PRIVATE, debugging */ 1196int 1197xfs_qm_internalqcheck( 1198 xfs_mount_t *mp) 1199{ 1200 xfs_ino_t lastino; 1201 int done, count; 1202 int i; 1203 int error; 1204 1205 lastino = 0; 1206 qmtest_hashmask = 32; 1207 count = 5; 1208 done = 0; 1209 qmtest_nfails = 0; 1210 1211 if (! XFS_IS_QUOTA_ON(mp)) 1212 return XFS_ERROR(ESRCH); 1213 1214 xfs_log_force(mp, XFS_LOG_SYNC); 1215 XFS_bflush(mp->m_ddev_targp); 1216 xfs_log_force(mp, XFS_LOG_SYNC); 1217 XFS_bflush(mp->m_ddev_targp); 1218 1219 mutex_lock(&qcheck_lock); 1220 /* There should be absolutely no quota activity while this 1221 is going on. */ 1222 qmtest_udqtab = kmem_zalloc(qmtest_hashmask * 1223 sizeof(xfs_dqhash_t), KM_SLEEP); 1224 qmtest_gdqtab = kmem_zalloc(qmtest_hashmask * 1225 sizeof(xfs_dqhash_t), KM_SLEEP); 1226 do { 1227 /* 1228 * Iterate thru all the inodes in the file system, 1229 * adjusting the corresponding dquot counters 1230 */ 1231 error = xfs_bulkstat(mp, &lastino, &count, 1232 xfs_qm_internalqcheck_adjust, 1233 0, NULL, &done); 1234 if (error) { 1235 cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error); 1236 break; 1237 } 1238 } while (!done); 1239 1240 cmn_err(CE_DEBUG, "Checking results against system dquots"); 1241 for (i = 0; i < qmtest_hashmask; i++) { 1242 xfs_dqtest_t *d, *n; 1243 xfs_dqhash_t *h; 1244 1245 h = &qmtest_udqtab[i]; 1246 list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { 1247 xfs_dqtest_cmp(d); 1248 kmem_free(d); 1249 } 1250 h = &qmtest_gdqtab[i]; 1251 list_for_each_entry_safe(d, n, &h->qh_list, q_hashlist) { 1252 xfs_dqtest_cmp(d); 1253 kmem_free(d); 1254 } 1255 } 1256 1257 if (qmtest_nfails) { 1258 cmn_err(CE_DEBUG, "******** quotacheck failed ********"); 1259 cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails); 1260 } else { 1261 cmn_err(CE_DEBUG, "******** quotacheck successful! ********"); 1262 } 1263 kmem_free(qmtest_udqtab); 1264 kmem_free(qmtest_gdqtab); 1265 mutex_unlock(&qcheck_lock); 1266 return (qmtest_nfails); 1267} 1268 1269#endif /* DEBUG */ 1270