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 #include "xfs.h" 19 #include "xfs_fs.h" 20 #include "xfs_shared.h" 21 #include "xfs_format.h" 22 #include "xfs_log_format.h" 23 #include "xfs_trans_resv.h" 24 #include "xfs_bit.h" 25 #include "xfs_sb.h" 26 #include "xfs_mount.h" 27 #include "xfs_inode.h" 28 #include "xfs_ialloc.h" 29 #include "xfs_itable.h" 30 #include "xfs_quota.h" 31 #include "xfs_error.h" 32 #include "xfs_bmap.h" 33 #include "xfs_bmap_btree.h" 34 #include "xfs_bmap_util.h" 35 #include "xfs_trans.h" 36 #include "xfs_trans_space.h" 37 #include "xfs_qm.h" 38 #include "xfs_trace.h" 39 #include "xfs_icache.h" 40 #include "xfs_cksum.h" 41 42 /* 43 * The global quota manager. There is only one of these for the entire 44 * system, _not_ one per file system. XQM keeps track of the overall 45 * quota functionality, including maintaining the freelist and hash 46 * tables of dquots. 47 */ 48 STATIC int xfs_qm_init_quotainos(xfs_mount_t *); 49 STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); 50 51 STATIC void xfs_qm_destroy_quotainos(xfs_quotainfo_t *qi); 52 STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); 53 /* 54 * We use the batch lookup interface to iterate over the dquots as it 55 * currently is the only interface into the radix tree code that allows 56 * fuzzy lookups instead of exact matches. Holding the lock over multiple 57 * operations is fine as all callers are used either during mount/umount 58 * or quotaoff. 59 */ 60 #define XFS_DQ_LOOKUP_BATCH 32 61 62 STATIC int 63 xfs_qm_dquot_walk( 64 struct xfs_mount *mp, 65 int type, 66 int (*execute)(struct xfs_dquot *dqp, void *data), 67 void *data) 68 { 69 struct xfs_quotainfo *qi = mp->m_quotainfo; 70 struct radix_tree_root *tree = xfs_dquot_tree(qi, type); 71 uint32_t next_index; 72 int last_error = 0; 73 int skipped; 74 int nr_found; 75 76 restart: 77 skipped = 0; 78 next_index = 0; 79 nr_found = 0; 80 81 while (1) { 82 struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; 83 int error = 0; 84 int i; 85 86 mutex_lock(&qi->qi_tree_lock); 87 nr_found = radix_tree_gang_lookup(tree, (void **)batch, 88 next_index, XFS_DQ_LOOKUP_BATCH); 89 if (!nr_found) { 90 mutex_unlock(&qi->qi_tree_lock); 91 break; 92 } 93 94 for (i = 0; i < nr_found; i++) { 95 struct xfs_dquot *dqp = batch[i]; 96 97 next_index = be32_to_cpu(dqp->q_core.d_id) + 1; 98 99 error = execute(batch[i], data); 100 if (error == -EAGAIN) { 101 skipped++; 102 continue; 103 } 104 if (error && last_error != -EFSCORRUPTED) 105 last_error = error; 106 } 107 108 mutex_unlock(&qi->qi_tree_lock); 109 110 /* bail out if the filesystem is corrupted. */ 111 if (last_error == -EFSCORRUPTED) { 112 skipped = 0; 113 break; 114 } 115 /* we're done if id overflows back to zero */ 116 if (!next_index) 117 break; 118 } 119 120 if (skipped) { 121 delay(1); 122 goto restart; 123 } 124 125 return last_error; 126 } 127 128 129 /* 130 * Purge a dquot from all tracking data structures and free it. 131 */ 132 STATIC int 133 xfs_qm_dqpurge( 134 struct xfs_dquot *dqp, 135 void *data) 136 { 137 struct xfs_mount *mp = dqp->q_mount; 138 struct xfs_quotainfo *qi = mp->m_quotainfo; 139 140 xfs_dqlock(dqp); 141 if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { 142 xfs_dqunlock(dqp); 143 return -EAGAIN; 144 } 145 146 dqp->dq_flags |= XFS_DQ_FREEING; 147 148 xfs_dqflock(dqp); 149 150 /* 151 * If we are turning this type of quotas off, we don't care 152 * about the dirty metadata sitting in this dquot. OTOH, if 153 * we're unmounting, we do care, so we flush it and wait. 154 */ 155 if (XFS_DQ_IS_DIRTY(dqp)) { 156 struct xfs_buf *bp = NULL; 157 int error; 158 159 /* 160 * We don't care about getting disk errors here. We need 161 * to purge this dquot anyway, so we go ahead regardless. 162 */ 163 error = xfs_qm_dqflush(dqp, &bp); 164 if (!error) { 165 error = xfs_bwrite(bp); 166 xfs_buf_relse(bp); 167 } 168 xfs_dqflock(dqp); 169 } 170 171 ASSERT(atomic_read(&dqp->q_pincount) == 0); 172 ASSERT(XFS_FORCED_SHUTDOWN(mp) || 173 !test_bit(XFS_LI_IN_AIL, &dqp->q_logitem.qli_item.li_flags)); 174 175 xfs_dqfunlock(dqp); 176 xfs_dqunlock(dqp); 177 178 radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), 179 be32_to_cpu(dqp->q_core.d_id)); 180 qi->qi_dquots--; 181 182 /* 183 * We move dquots to the freelist as soon as their reference count 184 * hits zero, so it really should be on the freelist here. 185 */ 186 ASSERT(!list_empty(&dqp->q_lru)); 187 list_lru_del(&qi->qi_lru, &dqp->q_lru); 188 XFS_STATS_DEC(mp, xs_qm_dquot_unused); 189 190 xfs_qm_dqdestroy(dqp); 191 return 0; 192 } 193 194 /* 195 * Purge the dquot cache. 196 */ 197 void 198 xfs_qm_dqpurge_all( 199 struct xfs_mount *mp, 200 uint flags) 201 { 202 if (flags & XFS_QMOPT_UQUOTA) 203 xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); 204 if (flags & XFS_QMOPT_GQUOTA) 205 xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); 206 if (flags & XFS_QMOPT_PQUOTA) 207 xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); 208 } 209 210 /* 211 * Just destroy the quotainfo structure. 212 */ 213 void 214 xfs_qm_unmount( 215 struct xfs_mount *mp) 216 { 217 if (mp->m_quotainfo) { 218 xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); 219 xfs_qm_destroy_quotainfo(mp); 220 } 221 } 222 223 /* 224 * Called from the vfsops layer. 225 */ 226 void 227 xfs_qm_unmount_quotas( 228 xfs_mount_t *mp) 229 { 230 /* 231 * Release the dquots that root inode, et al might be holding, 232 * before we flush quotas and blow away the quotainfo structure. 233 */ 234 ASSERT(mp->m_rootip); 235 xfs_qm_dqdetach(mp->m_rootip); 236 if (mp->m_rbmip) 237 xfs_qm_dqdetach(mp->m_rbmip); 238 if (mp->m_rsumip) 239 xfs_qm_dqdetach(mp->m_rsumip); 240 241 /* 242 * Release the quota inodes. 243 */ 244 if (mp->m_quotainfo) { 245 if (mp->m_quotainfo->qi_uquotaip) { 246 IRELE(mp->m_quotainfo->qi_uquotaip); 247 mp->m_quotainfo->qi_uquotaip = NULL; 248 } 249 if (mp->m_quotainfo->qi_gquotaip) { 250 IRELE(mp->m_quotainfo->qi_gquotaip); 251 mp->m_quotainfo->qi_gquotaip = NULL; 252 } 253 if (mp->m_quotainfo->qi_pquotaip) { 254 IRELE(mp->m_quotainfo->qi_pquotaip); 255 mp->m_quotainfo->qi_pquotaip = NULL; 256 } 257 } 258 } 259 260 STATIC int 261 xfs_qm_dqattach_one( 262 xfs_inode_t *ip, 263 xfs_dqid_t id, 264 uint type, 265 bool doalloc, 266 xfs_dquot_t **IO_idqpp) 267 { 268 xfs_dquot_t *dqp; 269 int error; 270 271 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); 272 error = 0; 273 274 /* 275 * See if we already have it in the inode itself. IO_idqpp is &i_udquot 276 * or &i_gdquot. This made the code look weird, but made the logic a lot 277 * simpler. 278 */ 279 dqp = *IO_idqpp; 280 if (dqp) { 281 trace_xfs_dqattach_found(dqp); 282 return 0; 283 } 284 285 /* 286 * Find the dquot from somewhere. This bumps the reference count of 287 * dquot and returns it locked. This can return ENOENT if dquot didn't 288 * exist on disk and we didn't ask it to allocate; ESRCH if quotas got 289 * turned off suddenly. 290 */ 291 error = xfs_qm_dqget_inode(ip, type, doalloc, &dqp); 292 if (error) 293 return error; 294 295 trace_xfs_dqattach_get(dqp); 296 297 /* 298 * dqget may have dropped and re-acquired the ilock, but it guarantees 299 * that the dquot returned is the one that should go in the inode. 300 */ 301 *IO_idqpp = dqp; 302 xfs_dqunlock(dqp); 303 return 0; 304 } 305 306 static bool 307 xfs_qm_need_dqattach( 308 struct xfs_inode *ip) 309 { 310 struct xfs_mount *mp = ip->i_mount; 311 312 if (!XFS_IS_QUOTA_RUNNING(mp)) 313 return false; 314 if (!XFS_IS_QUOTA_ON(mp)) 315 return false; 316 if (!XFS_NOT_DQATTACHED(mp, ip)) 317 return false; 318 if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) 319 return false; 320 return true; 321 } 322 323 /* 324 * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON 325 * into account. 326 * If @doalloc is true, the dquot(s) will be allocated if needed. 327 * Inode may get unlocked and relocked in here, and the caller must deal with 328 * the consequences. 329 */ 330 int 331 xfs_qm_dqattach_locked( 332 xfs_inode_t *ip, 333 bool doalloc) 334 { 335 xfs_mount_t *mp = ip->i_mount; 336 int error = 0; 337 338 if (!xfs_qm_need_dqattach(ip)) 339 return 0; 340 341 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); 342 343 if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { 344 error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, 345 doalloc, &ip->i_udquot); 346 if (error) 347 goto done; 348 ASSERT(ip->i_udquot); 349 } 350 351 if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { 352 error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, 353 doalloc, &ip->i_gdquot); 354 if (error) 355 goto done; 356 ASSERT(ip->i_gdquot); 357 } 358 359 if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { 360 error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, 361 doalloc, &ip->i_pdquot); 362 if (error) 363 goto done; 364 ASSERT(ip->i_pdquot); 365 } 366 367 done: 368 /* 369 * Don't worry about the dquots that we may have attached before any 370 * error - they'll get detached later if it has not already been done. 371 */ 372 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); 373 return error; 374 } 375 376 int 377 xfs_qm_dqattach( 378 struct xfs_inode *ip) 379 { 380 int error; 381 382 if (!xfs_qm_need_dqattach(ip)) 383 return 0; 384 385 xfs_ilock(ip, XFS_ILOCK_EXCL); 386 error = xfs_qm_dqattach_locked(ip, false); 387 xfs_iunlock(ip, XFS_ILOCK_EXCL); 388 389 return error; 390 } 391 392 /* 393 * Release dquots (and their references) if any. 394 * The inode should be locked EXCL except when this's called by 395 * xfs_ireclaim. 396 */ 397 void 398 xfs_qm_dqdetach( 399 xfs_inode_t *ip) 400 { 401 if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) 402 return; 403 404 trace_xfs_dquot_dqdetach(ip); 405 406 ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); 407 if (ip->i_udquot) { 408 xfs_qm_dqrele(ip->i_udquot); 409 ip->i_udquot = NULL; 410 } 411 if (ip->i_gdquot) { 412 xfs_qm_dqrele(ip->i_gdquot); 413 ip->i_gdquot = NULL; 414 } 415 if (ip->i_pdquot) { 416 xfs_qm_dqrele(ip->i_pdquot); 417 ip->i_pdquot = NULL; 418 } 419 } 420 421 struct xfs_qm_isolate { 422 struct list_head buffers; 423 struct list_head dispose; 424 }; 425 426 static enum lru_status 427 xfs_qm_dquot_isolate( 428 struct list_head *item, 429 struct list_lru_one *lru, 430 spinlock_t *lru_lock, 431 void *arg) 432 __releases(lru_lock) __acquires(lru_lock) 433 { 434 struct xfs_dquot *dqp = container_of(item, 435 struct xfs_dquot, q_lru); 436 struct xfs_qm_isolate *isol = arg; 437 438 if (!xfs_dqlock_nowait(dqp)) 439 goto out_miss_busy; 440 441 /* 442 * This dquot has acquired a reference in the meantime remove it from 443 * the freelist and try again. 444 */ 445 if (dqp->q_nrefs) { 446 xfs_dqunlock(dqp); 447 XFS_STATS_INC(dqp->q_mount, xs_qm_dqwants); 448 449 trace_xfs_dqreclaim_want(dqp); 450 list_lru_isolate(lru, &dqp->q_lru); 451 XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); 452 return LRU_REMOVED; 453 } 454 455 /* 456 * If the dquot is dirty, flush it. If it's already being flushed, just 457 * skip it so there is time for the IO to complete before we try to 458 * reclaim it again on the next LRU pass. 459 */ 460 if (!xfs_dqflock_nowait(dqp)) { 461 xfs_dqunlock(dqp); 462 goto out_miss_busy; 463 } 464 465 if (XFS_DQ_IS_DIRTY(dqp)) { 466 struct xfs_buf *bp = NULL; 467 int error; 468 469 trace_xfs_dqreclaim_dirty(dqp); 470 471 /* we have to drop the LRU lock to flush the dquot */ 472 spin_unlock(lru_lock); 473 474 error = xfs_qm_dqflush(dqp, &bp); 475 if (error) 476 goto out_unlock_dirty; 477 478 xfs_buf_delwri_queue(bp, &isol->buffers); 479 xfs_buf_relse(bp); 480 goto out_unlock_dirty; 481 } 482 xfs_dqfunlock(dqp); 483 484 /* 485 * Prevent lookups now that we are past the point of no return. 486 */ 487 dqp->dq_flags |= XFS_DQ_FREEING; 488 xfs_dqunlock(dqp); 489 490 ASSERT(dqp->q_nrefs == 0); 491 list_lru_isolate_move(lru, &dqp->q_lru, &isol->dispose); 492 XFS_STATS_DEC(dqp->q_mount, xs_qm_dquot_unused); 493 trace_xfs_dqreclaim_done(dqp); 494 XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaims); 495 return LRU_REMOVED; 496 497 out_miss_busy: 498 trace_xfs_dqreclaim_busy(dqp); 499 XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); 500 return LRU_SKIP; 501 502 out_unlock_dirty: 503 trace_xfs_dqreclaim_busy(dqp); 504 XFS_STATS_INC(dqp->q_mount, xs_qm_dqreclaim_misses); 505 xfs_dqunlock(dqp); 506 spin_lock(lru_lock); 507 return LRU_RETRY; 508 } 509 510 static unsigned long 511 xfs_qm_shrink_scan( 512 struct shrinker *shrink, 513 struct shrink_control *sc) 514 { 515 struct xfs_quotainfo *qi = container_of(shrink, 516 struct xfs_quotainfo, qi_shrinker); 517 struct xfs_qm_isolate isol; 518 unsigned long freed; 519 int error; 520 521 if ((sc->gfp_mask & (__GFP_FS|__GFP_DIRECT_RECLAIM)) != (__GFP_FS|__GFP_DIRECT_RECLAIM)) 522 return 0; 523 524 INIT_LIST_HEAD(&isol.buffers); 525 INIT_LIST_HEAD(&isol.dispose); 526 527 freed = list_lru_shrink_walk(&qi->qi_lru, sc, 528 xfs_qm_dquot_isolate, &isol); 529 530 error = xfs_buf_delwri_submit(&isol.buffers); 531 if (error) 532 xfs_warn(NULL, "%s: dquot reclaim failed", __func__); 533 534 while (!list_empty(&isol.dispose)) { 535 struct xfs_dquot *dqp; 536 537 dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); 538 list_del_init(&dqp->q_lru); 539 xfs_qm_dqfree_one(dqp); 540 } 541 542 return freed; 543 } 544 545 static unsigned long 546 xfs_qm_shrink_count( 547 struct shrinker *shrink, 548 struct shrink_control *sc) 549 { 550 struct xfs_quotainfo *qi = container_of(shrink, 551 struct xfs_quotainfo, qi_shrinker); 552 553 return list_lru_shrink_count(&qi->qi_lru, sc); 554 } 555 556 STATIC void 557 xfs_qm_set_defquota( 558 xfs_mount_t *mp, 559 uint type, 560 xfs_quotainfo_t *qinf) 561 { 562 xfs_dquot_t *dqp; 563 struct xfs_def_quota *defq; 564 struct xfs_disk_dquot *ddqp; 565 int error; 566 567 error = xfs_qm_dqget_uncached(mp, 0, type, &dqp); 568 if (error) 569 return; 570 571 ddqp = &dqp->q_core; 572 defq = xfs_get_defquota(dqp, qinf); 573 574 /* 575 * Timers and warnings have been already set, let's just set the 576 * default limits for this quota type 577 */ 578 defq->bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); 579 defq->bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); 580 defq->ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); 581 defq->isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); 582 defq->rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); 583 defq->rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); 584 xfs_qm_dqdestroy(dqp); 585 } 586 587 /* Initialize quota time limits from the root dquot. */ 588 static void 589 xfs_qm_init_timelimits( 590 struct xfs_mount *mp, 591 struct xfs_quotainfo *qinf) 592 { 593 struct xfs_disk_dquot *ddqp; 594 struct xfs_dquot *dqp; 595 uint type; 596 int error; 597 598 qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; 599 qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; 600 qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; 601 qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; 602 qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; 603 qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; 604 605 /* 606 * We try to get the limits from the superuser's limits fields. 607 * This is quite hacky, but it is standard quota practice. 608 * 609 * Since we may not have done a quotacheck by this point, just read 610 * the dquot without attaching it to any hashtables or lists. 611 * 612 * Timers and warnings are globally set by the first timer found in 613 * user/group/proj quota types, otherwise a default value is used. 614 * This should be split into different fields per quota type. 615 */ 616 if (XFS_IS_UQUOTA_RUNNING(mp)) 617 type = XFS_DQ_USER; 618 else if (XFS_IS_GQUOTA_RUNNING(mp)) 619 type = XFS_DQ_GROUP; 620 else 621 type = XFS_DQ_PROJ; 622 error = xfs_qm_dqget_uncached(mp, 0, type, &dqp); 623 if (error) 624 return; 625 626 ddqp = &dqp->q_core; 627 /* 628 * The warnings and timers set the grace period given to 629 * a user or group before he or she can not perform any 630 * more writing. If it is zero, a default is used. 631 */ 632 if (ddqp->d_btimer) 633 qinf->qi_btimelimit = be32_to_cpu(ddqp->d_btimer); 634 if (ddqp->d_itimer) 635 qinf->qi_itimelimit = be32_to_cpu(ddqp->d_itimer); 636 if (ddqp->d_rtbtimer) 637 qinf->qi_rtbtimelimit = be32_to_cpu(ddqp->d_rtbtimer); 638 if (ddqp->d_bwarns) 639 qinf->qi_bwarnlimit = be16_to_cpu(ddqp->d_bwarns); 640 if (ddqp->d_iwarns) 641 qinf->qi_iwarnlimit = be16_to_cpu(ddqp->d_iwarns); 642 if (ddqp->d_rtbwarns) 643 qinf->qi_rtbwarnlimit = be16_to_cpu(ddqp->d_rtbwarns); 644 645 xfs_qm_dqdestroy(dqp); 646 } 647 648 /* 649 * This initializes all the quota information that's kept in the 650 * mount structure 651 */ 652 STATIC int 653 xfs_qm_init_quotainfo( 654 struct xfs_mount *mp) 655 { 656 struct xfs_quotainfo *qinf; 657 int error; 658 659 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 660 661 qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); 662 663 error = list_lru_init(&qinf->qi_lru); 664 if (error) 665 goto out_free_qinf; 666 667 /* 668 * See if quotainodes are setup, and if not, allocate them, 669 * and change the superblock accordingly. 670 */ 671 error = xfs_qm_init_quotainos(mp); 672 if (error) 673 goto out_free_lru; 674 675 INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); 676 INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); 677 INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); 678 mutex_init(&qinf->qi_tree_lock); 679 680 /* mutex used to serialize quotaoffs */ 681 mutex_init(&qinf->qi_quotaofflock); 682 683 /* Precalc some constants */ 684 qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); 685 qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); 686 687 mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); 688 689 xfs_qm_init_timelimits(mp, qinf); 690 691 if (XFS_IS_UQUOTA_RUNNING(mp)) 692 xfs_qm_set_defquota(mp, XFS_DQ_USER, qinf); 693 if (XFS_IS_GQUOTA_RUNNING(mp)) 694 xfs_qm_set_defquota(mp, XFS_DQ_GROUP, qinf); 695 if (XFS_IS_PQUOTA_RUNNING(mp)) 696 xfs_qm_set_defquota(mp, XFS_DQ_PROJ, qinf); 697 698 qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; 699 qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; 700 qinf->qi_shrinker.seeks = DEFAULT_SEEKS; 701 qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; 702 703 error = register_shrinker(&qinf->qi_shrinker); 704 if (error) 705 goto out_free_inos; 706 707 return 0; 708 709 out_free_inos: 710 mutex_destroy(&qinf->qi_quotaofflock); 711 mutex_destroy(&qinf->qi_tree_lock); 712 xfs_qm_destroy_quotainos(qinf); 713 out_free_lru: 714 list_lru_destroy(&qinf->qi_lru); 715 out_free_qinf: 716 kmem_free(qinf); 717 mp->m_quotainfo = NULL; 718 return error; 719 } 720 721 /* 722 * Gets called when unmounting a filesystem or when all quotas get 723 * turned off. 724 * This purges the quota inodes, destroys locks and frees itself. 725 */ 726 void 727 xfs_qm_destroy_quotainfo( 728 xfs_mount_t *mp) 729 { 730 xfs_quotainfo_t *qi; 731 732 qi = mp->m_quotainfo; 733 ASSERT(qi != NULL); 734 735 unregister_shrinker(&qi->qi_shrinker); 736 list_lru_destroy(&qi->qi_lru); 737 xfs_qm_destroy_quotainos(qi); 738 mutex_destroy(&qi->qi_tree_lock); 739 mutex_destroy(&qi->qi_quotaofflock); 740 kmem_free(qi); 741 mp->m_quotainfo = NULL; 742 } 743 744 /* 745 * Create an inode and return with a reference already taken, but unlocked 746 * This is how we create quota inodes 747 */ 748 STATIC int 749 xfs_qm_qino_alloc( 750 xfs_mount_t *mp, 751 xfs_inode_t **ip, 752 uint flags) 753 { 754 xfs_trans_t *tp; 755 int error; 756 bool need_alloc = true; 757 758 *ip = NULL; 759 /* 760 * With superblock that doesn't have separate pquotino, we 761 * share an inode between gquota and pquota. If the on-disk 762 * superblock has GQUOTA and the filesystem is now mounted 763 * with PQUOTA, just use sb_gquotino for sb_pquotino and 764 * vice-versa. 765 */ 766 if (!xfs_sb_version_has_pquotino(&mp->m_sb) && 767 (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { 768 xfs_ino_t ino = NULLFSINO; 769 770 if ((flags & XFS_QMOPT_PQUOTA) && 771 (mp->m_sb.sb_gquotino != NULLFSINO)) { 772 ino = mp->m_sb.sb_gquotino; 773 ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); 774 } else if ((flags & XFS_QMOPT_GQUOTA) && 775 (mp->m_sb.sb_pquotino != NULLFSINO)) { 776 ino = mp->m_sb.sb_pquotino; 777 ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); 778 } 779 if (ino != NULLFSINO) { 780 error = xfs_iget(mp, NULL, ino, 0, 0, ip); 781 if (error) 782 return error; 783 mp->m_sb.sb_gquotino = NULLFSINO; 784 mp->m_sb.sb_pquotino = NULLFSINO; 785 need_alloc = false; 786 } 787 } 788 789 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_create, 790 XFS_QM_QINOCREATE_SPACE_RES(mp), 0, 0, &tp); 791 if (error) 792 return error; 793 794 if (need_alloc) { 795 error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, ip); 796 if (error) { 797 xfs_trans_cancel(tp); 798 return error; 799 } 800 } 801 802 /* 803 * Make the changes in the superblock, and log those too. 804 * sbfields arg may contain fields other than *QUOTINO; 805 * VERSIONNUM for example. 806 */ 807 spin_lock(&mp->m_sb_lock); 808 if (flags & XFS_QMOPT_SBVERSION) { 809 ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); 810 811 xfs_sb_version_addquota(&mp->m_sb); 812 mp->m_sb.sb_uquotino = NULLFSINO; 813 mp->m_sb.sb_gquotino = NULLFSINO; 814 mp->m_sb.sb_pquotino = NULLFSINO; 815 816 /* qflags will get updated fully _after_ quotacheck */ 817 mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; 818 } 819 if (flags & XFS_QMOPT_UQUOTA) 820 mp->m_sb.sb_uquotino = (*ip)->i_ino; 821 else if (flags & XFS_QMOPT_GQUOTA) 822 mp->m_sb.sb_gquotino = (*ip)->i_ino; 823 else 824 mp->m_sb.sb_pquotino = (*ip)->i_ino; 825 spin_unlock(&mp->m_sb_lock); 826 xfs_log_sb(tp); 827 828 error = xfs_trans_commit(tp); 829 if (error) { 830 ASSERT(XFS_FORCED_SHUTDOWN(mp)); 831 xfs_alert(mp, "%s failed (error %d)!", __func__, error); 832 } 833 if (need_alloc) 834 xfs_finish_inode_setup(*ip); 835 return error; 836 } 837 838 839 STATIC void 840 xfs_qm_reset_dqcounts( 841 xfs_mount_t *mp, 842 xfs_buf_t *bp, 843 xfs_dqid_t id, 844 uint type) 845 { 846 struct xfs_dqblk *dqb; 847 int j; 848 xfs_failaddr_t fa; 849 850 trace_xfs_reset_dqcounts(bp, _RET_IP_); 851 852 /* 853 * Reset all counters and timers. They'll be 854 * started afresh by xfs_qm_quotacheck. 855 */ 856 #ifdef DEBUG 857 j = (int)XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) / 858 sizeof(xfs_dqblk_t); 859 ASSERT(mp->m_quotainfo->qi_dqperchunk == j); 860 #endif 861 dqb = bp->b_addr; 862 for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { 863 struct xfs_disk_dquot *ddq; 864 865 ddq = (struct xfs_disk_dquot *)&dqb[j]; 866 867 /* 868 * Do a sanity check, and if needed, repair the dqblk. Don't 869 * output any warnings because it's perfectly possible to 870 * find uninitialised dquot blks. See comment in 871 * xfs_dquot_verify. 872 */ 873 fa = xfs_dqblk_verify(mp, &dqb[j], id + j, type); 874 if (fa) 875 xfs_dqblk_repair(mp, &dqb[j], id + j, type); 876 877 /* 878 * Reset type in case we are reusing group quota file for 879 * project quotas or vice versa 880 */ 881 ddq->d_flags = type; 882 ddq->d_bcount = 0; 883 ddq->d_icount = 0; 884 ddq->d_rtbcount = 0; 885 ddq->d_btimer = 0; 886 ddq->d_itimer = 0; 887 ddq->d_rtbtimer = 0; 888 ddq->d_bwarns = 0; 889 ddq->d_iwarns = 0; 890 ddq->d_rtbwarns = 0; 891 892 if (xfs_sb_version_hascrc(&mp->m_sb)) { 893 xfs_update_cksum((char *)&dqb[j], 894 sizeof(struct xfs_dqblk), 895 XFS_DQUOT_CRC_OFF); 896 } 897 } 898 } 899 900 STATIC int 901 xfs_qm_reset_dqcounts_all( 902 struct xfs_mount *mp, 903 xfs_dqid_t firstid, 904 xfs_fsblock_t bno, 905 xfs_filblks_t blkcnt, 906 uint flags, 907 struct list_head *buffer_list) 908 { 909 struct xfs_buf *bp; 910 int error; 911 int type; 912 913 ASSERT(blkcnt > 0); 914 type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : 915 (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); 916 error = 0; 917 918 /* 919 * Blkcnt arg can be a very big number, and might even be 920 * larger than the log itself. So, we have to break it up into 921 * manageable-sized transactions. 922 * Note that we don't start a permanent transaction here; we might 923 * not be able to get a log reservation for the whole thing up front, 924 * and we don't really care to either, because we just discard 925 * everything if we were to crash in the middle of this loop. 926 */ 927 while (blkcnt--) { 928 error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, 929 XFS_FSB_TO_DADDR(mp, bno), 930 mp->m_quotainfo->qi_dqchunklen, 0, &bp, 931 &xfs_dquot_buf_ops); 932 933 /* 934 * CRC and validation errors will return a EFSCORRUPTED here. If 935 * this occurs, re-read without CRC validation so that we can 936 * repair the damage via xfs_qm_reset_dqcounts(). This process 937 * will leave a trace in the log indicating corruption has 938 * been detected. 939 */ 940 if (error == -EFSCORRUPTED) { 941 error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, 942 XFS_FSB_TO_DADDR(mp, bno), 943 mp->m_quotainfo->qi_dqchunklen, 0, &bp, 944 NULL); 945 } 946 947 if (error) 948 break; 949 950 /* 951 * A corrupt buffer might not have a verifier attached, so 952 * make sure we have the correct one attached before writeback 953 * occurs. 954 */ 955 bp->b_ops = &xfs_dquot_buf_ops; 956 xfs_qm_reset_dqcounts(mp, bp, firstid, type); 957 xfs_buf_delwri_queue(bp, buffer_list); 958 xfs_buf_relse(bp); 959 960 /* goto the next block. */ 961 bno++; 962 firstid += mp->m_quotainfo->qi_dqperchunk; 963 } 964 965 return error; 966 } 967 968 /* 969 * Iterate over all allocated dquot blocks in this quota inode, zeroing all 970 * counters for every chunk of dquots that we find. 971 */ 972 STATIC int 973 xfs_qm_reset_dqcounts_buf( 974 struct xfs_mount *mp, 975 struct xfs_inode *qip, 976 uint flags, 977 struct list_head *buffer_list) 978 { 979 struct xfs_bmbt_irec *map; 980 int i, nmaps; /* number of map entries */ 981 int error; /* return value */ 982 xfs_fileoff_t lblkno; 983 xfs_filblks_t maxlblkcnt; 984 xfs_dqid_t firstid; 985 xfs_fsblock_t rablkno; 986 xfs_filblks_t rablkcnt; 987 988 error = 0; 989 /* 990 * This looks racy, but we can't keep an inode lock across a 991 * trans_reserve. But, this gets called during quotacheck, and that 992 * happens only at mount time which is single threaded. 993 */ 994 if (qip->i_d.di_nblocks == 0) 995 return 0; 996 997 map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); 998 999 lblkno = 0; 1000 maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); 1001 do { 1002 uint lock_mode; 1003 1004 nmaps = XFS_DQITER_MAP_SIZE; 1005 /* 1006 * We aren't changing the inode itself. Just changing 1007 * some of its data. No new blocks are added here, and 1008 * the inode is never added to the transaction. 1009 */ 1010 lock_mode = xfs_ilock_data_map_shared(qip); 1011 error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, 1012 map, &nmaps, 0); 1013 xfs_iunlock(qip, lock_mode); 1014 if (error) 1015 break; 1016 1017 ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); 1018 for (i = 0; i < nmaps; i++) { 1019 ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); 1020 ASSERT(map[i].br_blockcount); 1021 1022 1023 lblkno += map[i].br_blockcount; 1024 1025 if (map[i].br_startblock == HOLESTARTBLOCK) 1026 continue; 1027 1028 firstid = (xfs_dqid_t) map[i].br_startoff * 1029 mp->m_quotainfo->qi_dqperchunk; 1030 /* 1031 * Do a read-ahead on the next extent. 1032 */ 1033 if ((i+1 < nmaps) && 1034 (map[i+1].br_startblock != HOLESTARTBLOCK)) { 1035 rablkcnt = map[i+1].br_blockcount; 1036 rablkno = map[i+1].br_startblock; 1037 while (rablkcnt--) { 1038 xfs_buf_readahead(mp->m_ddev_targp, 1039 XFS_FSB_TO_DADDR(mp, rablkno), 1040 mp->m_quotainfo->qi_dqchunklen, 1041 &xfs_dquot_buf_ops); 1042 rablkno++; 1043 } 1044 } 1045 /* 1046 * Iterate thru all the blks in the extent and 1047 * reset the counters of all the dquots inside them. 1048 */ 1049 error = xfs_qm_reset_dqcounts_all(mp, firstid, 1050 map[i].br_startblock, 1051 map[i].br_blockcount, 1052 flags, buffer_list); 1053 if (error) 1054 goto out; 1055 } 1056 } while (nmaps > 0); 1057 1058 out: 1059 kmem_free(map); 1060 return error; 1061 } 1062 1063 /* 1064 * Called by dqusage_adjust in doing a quotacheck. 1065 * 1066 * Given the inode, and a dquot id this updates both the incore dqout as well 1067 * as the buffer copy. This is so that once the quotacheck is done, we can 1068 * just log all the buffers, as opposed to logging numerous updates to 1069 * individual dquots. 1070 */ 1071 STATIC int 1072 xfs_qm_quotacheck_dqadjust( 1073 struct xfs_inode *ip, 1074 uint type, 1075 xfs_qcnt_t nblks, 1076 xfs_qcnt_t rtblks) 1077 { 1078 struct xfs_mount *mp = ip->i_mount; 1079 struct xfs_dquot *dqp; 1080 xfs_dqid_t id; 1081 int error; 1082 1083 id = xfs_qm_id_for_quotatype(ip, type); 1084 error = xfs_qm_dqget(mp, id, type, true, &dqp); 1085 if (error) { 1086 /* 1087 * Shouldn't be able to turn off quotas here. 1088 */ 1089 ASSERT(error != -ESRCH); 1090 ASSERT(error != -ENOENT); 1091 return error; 1092 } 1093 1094 trace_xfs_dqadjust(dqp); 1095 1096 /* 1097 * Adjust the inode count and the block count to reflect this inode's 1098 * resource usage. 1099 */ 1100 be64_add_cpu(&dqp->q_core.d_icount, 1); 1101 dqp->q_res_icount++; 1102 if (nblks) { 1103 be64_add_cpu(&dqp->q_core.d_bcount, nblks); 1104 dqp->q_res_bcount += nblks; 1105 } 1106 if (rtblks) { 1107 be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); 1108 dqp->q_res_rtbcount += rtblks; 1109 } 1110 1111 /* 1112 * Set default limits, adjust timers (since we changed usages) 1113 * 1114 * There are no timers for the default values set in the root dquot. 1115 */ 1116 if (dqp->q_core.d_id) { 1117 xfs_qm_adjust_dqlimits(mp, dqp); 1118 xfs_qm_adjust_dqtimers(mp, &dqp->q_core); 1119 } 1120 1121 dqp->dq_flags |= XFS_DQ_DIRTY; 1122 xfs_qm_dqput(dqp); 1123 return 0; 1124 } 1125 1126 /* 1127 * callback routine supplied to bulkstat(). Given an inumber, find its 1128 * dquots and update them to account for resources taken by that inode. 1129 */ 1130 /* ARGSUSED */ 1131 STATIC int 1132 xfs_qm_dqusage_adjust( 1133 xfs_mount_t *mp, /* mount point for filesystem */ 1134 xfs_ino_t ino, /* inode number to get data for */ 1135 void __user *buffer, /* not used */ 1136 int ubsize, /* not used */ 1137 int *ubused, /* not used */ 1138 int *res) /* result code value */ 1139 { 1140 xfs_inode_t *ip; 1141 xfs_qcnt_t nblks; 1142 xfs_filblks_t rtblks = 0; /* total rt blks */ 1143 int error; 1144 1145 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 1146 1147 /* 1148 * rootino must have its resources accounted for, not so with the quota 1149 * inodes. 1150 */ 1151 if (xfs_is_quota_inode(&mp->m_sb, ino)) { 1152 *res = BULKSTAT_RV_NOTHING; 1153 return -EINVAL; 1154 } 1155 1156 /* 1157 * We don't _need_ to take the ilock EXCL here because quotacheck runs 1158 * at mount time and therefore nobody will be racing chown/chproj. 1159 */ 1160 error = xfs_iget(mp, NULL, ino, XFS_IGET_DONTCACHE, 0, &ip); 1161 if (error) { 1162 *res = BULKSTAT_RV_NOTHING; 1163 return error; 1164 } 1165 1166 ASSERT(ip->i_delayed_blks == 0); 1167 1168 if (XFS_IS_REALTIME_INODE(ip)) { 1169 struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); 1170 1171 if (!(ifp->if_flags & XFS_IFEXTENTS)) { 1172 error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK); 1173 if (error) 1174 goto error0; 1175 } 1176 1177 xfs_bmap_count_leaves(ifp, &rtblks); 1178 } 1179 1180 nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; 1181 1182 /* 1183 * Add the (disk blocks and inode) resources occupied by this 1184 * inode to its dquots. We do this adjustment in the incore dquot, 1185 * and also copy the changes to its buffer. 1186 * We don't care about putting these changes in a transaction 1187 * envelope because if we crash in the middle of a 'quotacheck' 1188 * we have to start from the beginning anyway. 1189 * Once we're done, we'll log all the dquot bufs. 1190 * 1191 * The *QUOTA_ON checks below may look pretty racy, but quotachecks 1192 * and quotaoffs don't race. (Quotachecks happen at mount time only). 1193 */ 1194 if (XFS_IS_UQUOTA_ON(mp)) { 1195 error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_USER, nblks, 1196 rtblks); 1197 if (error) 1198 goto error0; 1199 } 1200 1201 if (XFS_IS_GQUOTA_ON(mp)) { 1202 error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_GROUP, nblks, 1203 rtblks); 1204 if (error) 1205 goto error0; 1206 } 1207 1208 if (XFS_IS_PQUOTA_ON(mp)) { 1209 error = xfs_qm_quotacheck_dqadjust(ip, XFS_DQ_PROJ, nblks, 1210 rtblks); 1211 if (error) 1212 goto error0; 1213 } 1214 1215 IRELE(ip); 1216 *res = BULKSTAT_RV_DIDONE; 1217 return 0; 1218 1219 error0: 1220 IRELE(ip); 1221 *res = BULKSTAT_RV_GIVEUP; 1222 return error; 1223 } 1224 1225 STATIC int 1226 xfs_qm_flush_one( 1227 struct xfs_dquot *dqp, 1228 void *data) 1229 { 1230 struct xfs_mount *mp = dqp->q_mount; 1231 struct list_head *buffer_list = data; 1232 struct xfs_buf *bp = NULL; 1233 int error = 0; 1234 1235 xfs_dqlock(dqp); 1236 if (dqp->dq_flags & XFS_DQ_FREEING) 1237 goto out_unlock; 1238 if (!XFS_DQ_IS_DIRTY(dqp)) 1239 goto out_unlock; 1240 1241 /* 1242 * The only way the dquot is already flush locked by the time quotacheck 1243 * gets here is if reclaim flushed it before the dqadjust walk dirtied 1244 * it for the final time. Quotacheck collects all dquot bufs in the 1245 * local delwri queue before dquots are dirtied, so reclaim can't have 1246 * possibly queued it for I/O. The only way out is to push the buffer to 1247 * cycle the flush lock. 1248 */ 1249 if (!xfs_dqflock_nowait(dqp)) { 1250 /* buf is pinned in-core by delwri list */ 1251 bp = xfs_buf_incore(mp->m_ddev_targp, dqp->q_blkno, 1252 mp->m_quotainfo->qi_dqchunklen, 0); 1253 if (!bp) { 1254 error = -EINVAL; 1255 goto out_unlock; 1256 } 1257 xfs_buf_unlock(bp); 1258 1259 xfs_buf_delwri_pushbuf(bp, buffer_list); 1260 xfs_buf_rele(bp); 1261 1262 error = -EAGAIN; 1263 goto out_unlock; 1264 } 1265 1266 error = xfs_qm_dqflush(dqp, &bp); 1267 if (error) 1268 goto out_unlock; 1269 1270 xfs_buf_delwri_queue(bp, buffer_list); 1271 xfs_buf_relse(bp); 1272 out_unlock: 1273 xfs_dqunlock(dqp); 1274 return error; 1275 } 1276 1277 /* 1278 * Walk thru all the filesystem inodes and construct a consistent view 1279 * of the disk quota world. If the quotacheck fails, disable quotas. 1280 */ 1281 STATIC int 1282 xfs_qm_quotacheck( 1283 xfs_mount_t *mp) 1284 { 1285 int done, count, error, error2; 1286 xfs_ino_t lastino; 1287 size_t structsz; 1288 uint flags; 1289 LIST_HEAD (buffer_list); 1290 struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; 1291 struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; 1292 struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; 1293 1294 count = INT_MAX; 1295 structsz = 1; 1296 lastino = 0; 1297 flags = 0; 1298 1299 ASSERT(uip || gip || pip); 1300 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 1301 1302 xfs_notice(mp, "Quotacheck needed: Please wait."); 1303 1304 /* 1305 * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset 1306 * their counters to zero. We need a clean slate. 1307 * We don't log our changes till later. 1308 */ 1309 if (uip) { 1310 error = xfs_qm_reset_dqcounts_buf(mp, uip, XFS_QMOPT_UQUOTA, 1311 &buffer_list); 1312 if (error) 1313 goto error_return; 1314 flags |= XFS_UQUOTA_CHKD; 1315 } 1316 1317 if (gip) { 1318 error = xfs_qm_reset_dqcounts_buf(mp, gip, XFS_QMOPT_GQUOTA, 1319 &buffer_list); 1320 if (error) 1321 goto error_return; 1322 flags |= XFS_GQUOTA_CHKD; 1323 } 1324 1325 if (pip) { 1326 error = xfs_qm_reset_dqcounts_buf(mp, pip, XFS_QMOPT_PQUOTA, 1327 &buffer_list); 1328 if (error) 1329 goto error_return; 1330 flags |= XFS_PQUOTA_CHKD; 1331 } 1332 1333 do { 1334 /* 1335 * Iterate thru all the inodes in the file system, 1336 * adjusting the corresponding dquot counters in core. 1337 */ 1338 error = xfs_bulkstat(mp, &lastino, &count, 1339 xfs_qm_dqusage_adjust, 1340 structsz, NULL, &done); 1341 if (error) 1342 break; 1343 1344 } while (!done); 1345 1346 /* 1347 * We've made all the changes that we need to make incore. Flush them 1348 * down to disk buffers if everything was updated successfully. 1349 */ 1350 if (XFS_IS_UQUOTA_ON(mp)) { 1351 error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, 1352 &buffer_list); 1353 } 1354 if (XFS_IS_GQUOTA_ON(mp)) { 1355 error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, 1356 &buffer_list); 1357 if (!error) 1358 error = error2; 1359 } 1360 if (XFS_IS_PQUOTA_ON(mp)) { 1361 error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, 1362 &buffer_list); 1363 if (!error) 1364 error = error2; 1365 } 1366 1367 error2 = xfs_buf_delwri_submit(&buffer_list); 1368 if (!error) 1369 error = error2; 1370 1371 /* 1372 * We can get this error if we couldn't do a dquot allocation inside 1373 * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the 1374 * dirty dquots that might be cached, we just want to get rid of them 1375 * and turn quotaoff. The dquots won't be attached to any of the inodes 1376 * at this point (because we intentionally didn't in dqget_noattach). 1377 */ 1378 if (error) { 1379 xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); 1380 goto error_return; 1381 } 1382 1383 /* 1384 * If one type of quotas is off, then it will lose its 1385 * quotachecked status, since we won't be doing accounting for 1386 * that type anymore. 1387 */ 1388 mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; 1389 mp->m_qflags |= flags; 1390 1391 error_return: 1392 xfs_buf_delwri_cancel(&buffer_list); 1393 1394 if (error) { 1395 xfs_warn(mp, 1396 "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", 1397 error); 1398 /* 1399 * We must turn off quotas. 1400 */ 1401 ASSERT(mp->m_quotainfo != NULL); 1402 xfs_qm_destroy_quotainfo(mp); 1403 if (xfs_mount_reset_sbqflags(mp)) { 1404 xfs_warn(mp, 1405 "Quotacheck: Failed to reset quota flags."); 1406 } 1407 } else 1408 xfs_notice(mp, "Quotacheck: Done."); 1409 return error; 1410 } 1411 1412 /* 1413 * This is called from xfs_mountfs to start quotas and initialize all 1414 * necessary data structures like quotainfo. This is also responsible for 1415 * running a quotacheck as necessary. We are guaranteed that the superblock 1416 * is consistently read in at this point. 1417 * 1418 * If we fail here, the mount will continue with quota turned off. We don't 1419 * need to inidicate success or failure at all. 1420 */ 1421 void 1422 xfs_qm_mount_quotas( 1423 struct xfs_mount *mp) 1424 { 1425 int error = 0; 1426 uint sbf; 1427 1428 /* 1429 * If quotas on realtime volumes is not supported, we disable 1430 * quotas immediately. 1431 */ 1432 if (mp->m_sb.sb_rextents) { 1433 xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); 1434 mp->m_qflags = 0; 1435 goto write_changes; 1436 } 1437 1438 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 1439 1440 /* 1441 * Allocate the quotainfo structure inside the mount struct, and 1442 * create quotainode(s), and change/rev superblock if necessary. 1443 */ 1444 error = xfs_qm_init_quotainfo(mp); 1445 if (error) { 1446 /* 1447 * We must turn off quotas. 1448 */ 1449 ASSERT(mp->m_quotainfo == NULL); 1450 mp->m_qflags = 0; 1451 goto write_changes; 1452 } 1453 /* 1454 * If any of the quotas are not consistent, do a quotacheck. 1455 */ 1456 if (XFS_QM_NEED_QUOTACHECK(mp)) { 1457 error = xfs_qm_quotacheck(mp); 1458 if (error) { 1459 /* Quotacheck failed and disabled quotas. */ 1460 return; 1461 } 1462 } 1463 /* 1464 * If one type of quotas is off, then it will lose its 1465 * quotachecked status, since we won't be doing accounting for 1466 * that type anymore. 1467 */ 1468 if (!XFS_IS_UQUOTA_ON(mp)) 1469 mp->m_qflags &= ~XFS_UQUOTA_CHKD; 1470 if (!XFS_IS_GQUOTA_ON(mp)) 1471 mp->m_qflags &= ~XFS_GQUOTA_CHKD; 1472 if (!XFS_IS_PQUOTA_ON(mp)) 1473 mp->m_qflags &= ~XFS_PQUOTA_CHKD; 1474 1475 write_changes: 1476 /* 1477 * We actually don't have to acquire the m_sb_lock at all. 1478 * This can only be called from mount, and that's single threaded. XXX 1479 */ 1480 spin_lock(&mp->m_sb_lock); 1481 sbf = mp->m_sb.sb_qflags; 1482 mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; 1483 spin_unlock(&mp->m_sb_lock); 1484 1485 if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { 1486 if (xfs_sync_sb(mp, false)) { 1487 /* 1488 * We could only have been turning quotas off. 1489 * We aren't in very good shape actually because 1490 * the incore structures are convinced that quotas are 1491 * off, but the on disk superblock doesn't know that ! 1492 */ 1493 ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); 1494 xfs_alert(mp, "%s: Superblock update failed!", 1495 __func__); 1496 } 1497 } 1498 1499 if (error) { 1500 xfs_warn(mp, "Failed to initialize disk quotas."); 1501 return; 1502 } 1503 } 1504 1505 /* 1506 * This is called after the superblock has been read in and we're ready to 1507 * iget the quota inodes. 1508 */ 1509 STATIC int 1510 xfs_qm_init_quotainos( 1511 xfs_mount_t *mp) 1512 { 1513 struct xfs_inode *uip = NULL; 1514 struct xfs_inode *gip = NULL; 1515 struct xfs_inode *pip = NULL; 1516 int error; 1517 uint flags = 0; 1518 1519 ASSERT(mp->m_quotainfo); 1520 1521 /* 1522 * Get the uquota and gquota inodes 1523 */ 1524 if (xfs_sb_version_hasquota(&mp->m_sb)) { 1525 if (XFS_IS_UQUOTA_ON(mp) && 1526 mp->m_sb.sb_uquotino != NULLFSINO) { 1527 ASSERT(mp->m_sb.sb_uquotino > 0); 1528 error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 1529 0, 0, &uip); 1530 if (error) 1531 return error; 1532 } 1533 if (XFS_IS_GQUOTA_ON(mp) && 1534 mp->m_sb.sb_gquotino != NULLFSINO) { 1535 ASSERT(mp->m_sb.sb_gquotino > 0); 1536 error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 1537 0, 0, &gip); 1538 if (error) 1539 goto error_rele; 1540 } 1541 if (XFS_IS_PQUOTA_ON(mp) && 1542 mp->m_sb.sb_pquotino != NULLFSINO) { 1543 ASSERT(mp->m_sb.sb_pquotino > 0); 1544 error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, 1545 0, 0, &pip); 1546 if (error) 1547 goto error_rele; 1548 } 1549 } else { 1550 flags |= XFS_QMOPT_SBVERSION; 1551 } 1552 1553 /* 1554 * Create the three inodes, if they don't exist already. The changes 1555 * made above will get added to a transaction and logged in one of 1556 * the qino_alloc calls below. If the device is readonly, 1557 * temporarily switch to read-write to do this. 1558 */ 1559 if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { 1560 error = xfs_qm_qino_alloc(mp, &uip, 1561 flags | XFS_QMOPT_UQUOTA); 1562 if (error) 1563 goto error_rele; 1564 1565 flags &= ~XFS_QMOPT_SBVERSION; 1566 } 1567 if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { 1568 error = xfs_qm_qino_alloc(mp, &gip, 1569 flags | XFS_QMOPT_GQUOTA); 1570 if (error) 1571 goto error_rele; 1572 1573 flags &= ~XFS_QMOPT_SBVERSION; 1574 } 1575 if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { 1576 error = xfs_qm_qino_alloc(mp, &pip, 1577 flags | XFS_QMOPT_PQUOTA); 1578 if (error) 1579 goto error_rele; 1580 } 1581 1582 mp->m_quotainfo->qi_uquotaip = uip; 1583 mp->m_quotainfo->qi_gquotaip = gip; 1584 mp->m_quotainfo->qi_pquotaip = pip; 1585 1586 return 0; 1587 1588 error_rele: 1589 if (uip) 1590 IRELE(uip); 1591 if (gip) 1592 IRELE(gip); 1593 if (pip) 1594 IRELE(pip); 1595 return error; 1596 } 1597 1598 STATIC void 1599 xfs_qm_destroy_quotainos( 1600 xfs_quotainfo_t *qi) 1601 { 1602 if (qi->qi_uquotaip) { 1603 IRELE(qi->qi_uquotaip); 1604 qi->qi_uquotaip = NULL; /* paranoia */ 1605 } 1606 if (qi->qi_gquotaip) { 1607 IRELE(qi->qi_gquotaip); 1608 qi->qi_gquotaip = NULL; 1609 } 1610 if (qi->qi_pquotaip) { 1611 IRELE(qi->qi_pquotaip); 1612 qi->qi_pquotaip = NULL; 1613 } 1614 } 1615 1616 STATIC void 1617 xfs_qm_dqfree_one( 1618 struct xfs_dquot *dqp) 1619 { 1620 struct xfs_mount *mp = dqp->q_mount; 1621 struct xfs_quotainfo *qi = mp->m_quotainfo; 1622 1623 mutex_lock(&qi->qi_tree_lock); 1624 radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), 1625 be32_to_cpu(dqp->q_core.d_id)); 1626 1627 qi->qi_dquots--; 1628 mutex_unlock(&qi->qi_tree_lock); 1629 1630 xfs_qm_dqdestroy(dqp); 1631 } 1632 1633 /* --------------- utility functions for vnodeops ---------------- */ 1634 1635 1636 /* 1637 * Given an inode, a uid, gid and prid make sure that we have 1638 * allocated relevant dquot(s) on disk, and that we won't exceed inode 1639 * quotas by creating this file. 1640 * This also attaches dquot(s) to the given inode after locking it, 1641 * and returns the dquots corresponding to the uid and/or gid. 1642 * 1643 * in : inode (unlocked) 1644 * out : udquot, gdquot with references taken and unlocked 1645 */ 1646 int 1647 xfs_qm_vop_dqalloc( 1648 struct xfs_inode *ip, 1649 xfs_dqid_t uid, 1650 xfs_dqid_t gid, 1651 prid_t prid, 1652 uint flags, 1653 struct xfs_dquot **O_udqpp, 1654 struct xfs_dquot **O_gdqpp, 1655 struct xfs_dquot **O_pdqpp) 1656 { 1657 struct xfs_mount *mp = ip->i_mount; 1658 struct xfs_dquot *uq = NULL; 1659 struct xfs_dquot *gq = NULL; 1660 struct xfs_dquot *pq = NULL; 1661 int error; 1662 uint lockflags; 1663 1664 if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) 1665 return 0; 1666 1667 lockflags = XFS_ILOCK_EXCL; 1668 xfs_ilock(ip, lockflags); 1669 1670 if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) 1671 gid = ip->i_d.di_gid; 1672 1673 /* 1674 * Attach the dquot(s) to this inode, doing a dquot allocation 1675 * if necessary. The dquot(s) will not be locked. 1676 */ 1677 if (XFS_NOT_DQATTACHED(mp, ip)) { 1678 error = xfs_qm_dqattach_locked(ip, true); 1679 if (error) { 1680 xfs_iunlock(ip, lockflags); 1681 return error; 1682 } 1683 } 1684 1685 if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { 1686 if (ip->i_d.di_uid != uid) { 1687 /* 1688 * What we need is the dquot that has this uid, and 1689 * if we send the inode to dqget, the uid of the inode 1690 * takes priority over what's sent in the uid argument. 1691 * We must unlock inode here before calling dqget if 1692 * we're not sending the inode, because otherwise 1693 * we'll deadlock by doing trans_reserve while 1694 * holding ilock. 1695 */ 1696 xfs_iunlock(ip, lockflags); 1697 error = xfs_qm_dqget(mp, uid, XFS_DQ_USER, true, &uq); 1698 if (error) { 1699 ASSERT(error != -ENOENT); 1700 return error; 1701 } 1702 /* 1703 * Get the ilock in the right order. 1704 */ 1705 xfs_dqunlock(uq); 1706 lockflags = XFS_ILOCK_SHARED; 1707 xfs_ilock(ip, lockflags); 1708 } else { 1709 /* 1710 * Take an extra reference, because we'll return 1711 * this to caller 1712 */ 1713 ASSERT(ip->i_udquot); 1714 uq = xfs_qm_dqhold(ip->i_udquot); 1715 } 1716 } 1717 if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { 1718 if (ip->i_d.di_gid != gid) { 1719 xfs_iunlock(ip, lockflags); 1720 error = xfs_qm_dqget(mp, gid, XFS_DQ_GROUP, true, &gq); 1721 if (error) { 1722 ASSERT(error != -ENOENT); 1723 goto error_rele; 1724 } 1725 xfs_dqunlock(gq); 1726 lockflags = XFS_ILOCK_SHARED; 1727 xfs_ilock(ip, lockflags); 1728 } else { 1729 ASSERT(ip->i_gdquot); 1730 gq = xfs_qm_dqhold(ip->i_gdquot); 1731 } 1732 } 1733 if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { 1734 if (xfs_get_projid(ip) != prid) { 1735 xfs_iunlock(ip, lockflags); 1736 error = xfs_qm_dqget(mp, (xfs_dqid_t)prid, XFS_DQ_PROJ, 1737 true, &pq); 1738 if (error) { 1739 ASSERT(error != -ENOENT); 1740 goto error_rele; 1741 } 1742 xfs_dqunlock(pq); 1743 lockflags = XFS_ILOCK_SHARED; 1744 xfs_ilock(ip, lockflags); 1745 } else { 1746 ASSERT(ip->i_pdquot); 1747 pq = xfs_qm_dqhold(ip->i_pdquot); 1748 } 1749 } 1750 if (uq) 1751 trace_xfs_dquot_dqalloc(ip); 1752 1753 xfs_iunlock(ip, lockflags); 1754 if (O_udqpp) 1755 *O_udqpp = uq; 1756 else 1757 xfs_qm_dqrele(uq); 1758 if (O_gdqpp) 1759 *O_gdqpp = gq; 1760 else 1761 xfs_qm_dqrele(gq); 1762 if (O_pdqpp) 1763 *O_pdqpp = pq; 1764 else 1765 xfs_qm_dqrele(pq); 1766 return 0; 1767 1768 error_rele: 1769 xfs_qm_dqrele(gq); 1770 xfs_qm_dqrele(uq); 1771 return error; 1772 } 1773 1774 /* 1775 * Actually transfer ownership, and do dquot modifications. 1776 * These were already reserved. 1777 */ 1778 xfs_dquot_t * 1779 xfs_qm_vop_chown( 1780 xfs_trans_t *tp, 1781 xfs_inode_t *ip, 1782 xfs_dquot_t **IO_olddq, 1783 xfs_dquot_t *newdq) 1784 { 1785 xfs_dquot_t *prevdq; 1786 uint bfield = XFS_IS_REALTIME_INODE(ip) ? 1787 XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; 1788 1789 1790 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); 1791 ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); 1792 1793 /* old dquot */ 1794 prevdq = *IO_olddq; 1795 ASSERT(prevdq); 1796 ASSERT(prevdq != newdq); 1797 1798 xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); 1799 xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); 1800 1801 /* the sparkling new dquot */ 1802 xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); 1803 xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); 1804 1805 /* 1806 * Take an extra reference, because the inode is going to keep 1807 * this dquot pointer even after the trans_commit. 1808 */ 1809 *IO_olddq = xfs_qm_dqhold(newdq); 1810 1811 return prevdq; 1812 } 1813 1814 /* 1815 * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). 1816 */ 1817 int 1818 xfs_qm_vop_chown_reserve( 1819 struct xfs_trans *tp, 1820 struct xfs_inode *ip, 1821 struct xfs_dquot *udqp, 1822 struct xfs_dquot *gdqp, 1823 struct xfs_dquot *pdqp, 1824 uint flags) 1825 { 1826 struct xfs_mount *mp = ip->i_mount; 1827 uint delblks, blkflags, prjflags = 0; 1828 struct xfs_dquot *udq_unres = NULL; 1829 struct xfs_dquot *gdq_unres = NULL; 1830 struct xfs_dquot *pdq_unres = NULL; 1831 struct xfs_dquot *udq_delblks = NULL; 1832 struct xfs_dquot *gdq_delblks = NULL; 1833 struct xfs_dquot *pdq_delblks = NULL; 1834 int error; 1835 1836 1837 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); 1838 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 1839 1840 delblks = ip->i_delayed_blks; 1841 blkflags = XFS_IS_REALTIME_INODE(ip) ? 1842 XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; 1843 1844 if (XFS_IS_UQUOTA_ON(mp) && udqp && 1845 ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) { 1846 udq_delblks = udqp; 1847 /* 1848 * If there are delayed allocation blocks, then we have to 1849 * unreserve those from the old dquot, and add them to the 1850 * new dquot. 1851 */ 1852 if (delblks) { 1853 ASSERT(ip->i_udquot); 1854 udq_unres = ip->i_udquot; 1855 } 1856 } 1857 if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && 1858 ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) { 1859 gdq_delblks = gdqp; 1860 if (delblks) { 1861 ASSERT(ip->i_gdquot); 1862 gdq_unres = ip->i_gdquot; 1863 } 1864 } 1865 1866 if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && 1867 xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) { 1868 prjflags = XFS_QMOPT_ENOSPC; 1869 pdq_delblks = pdqp; 1870 if (delblks) { 1871 ASSERT(ip->i_pdquot); 1872 pdq_unres = ip->i_pdquot; 1873 } 1874 } 1875 1876 error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, 1877 udq_delblks, gdq_delblks, pdq_delblks, 1878 ip->i_d.di_nblocks, 1, 1879 flags | blkflags | prjflags); 1880 if (error) 1881 return error; 1882 1883 /* 1884 * Do the delayed blks reservations/unreservations now. Since, these 1885 * are done without the help of a transaction, if a reservation fails 1886 * its previous reservations won't be automatically undone by trans 1887 * code. So, we have to do it manually here. 1888 */ 1889 if (delblks) { 1890 /* 1891 * Do the reservations first. Unreservation can't fail. 1892 */ 1893 ASSERT(udq_delblks || gdq_delblks || pdq_delblks); 1894 ASSERT(udq_unres || gdq_unres || pdq_unres); 1895 error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, 1896 udq_delblks, gdq_delblks, pdq_delblks, 1897 (xfs_qcnt_t)delblks, 0, 1898 flags | blkflags | prjflags); 1899 if (error) 1900 return error; 1901 xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, 1902 udq_unres, gdq_unres, pdq_unres, 1903 -((xfs_qcnt_t)delblks), 0, blkflags); 1904 } 1905 1906 return 0; 1907 } 1908 1909 int 1910 xfs_qm_vop_rename_dqattach( 1911 struct xfs_inode **i_tab) 1912 { 1913 struct xfs_mount *mp = i_tab[0]->i_mount; 1914 int i; 1915 1916 if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) 1917 return 0; 1918 1919 for (i = 0; (i < 4 && i_tab[i]); i++) { 1920 struct xfs_inode *ip = i_tab[i]; 1921 int error; 1922 1923 /* 1924 * Watch out for duplicate entries in the table. 1925 */ 1926 if (i == 0 || ip != i_tab[i-1]) { 1927 if (XFS_NOT_DQATTACHED(mp, ip)) { 1928 error = xfs_qm_dqattach(ip); 1929 if (error) 1930 return error; 1931 } 1932 } 1933 } 1934 return 0; 1935 } 1936 1937 void 1938 xfs_qm_vop_create_dqattach( 1939 struct xfs_trans *tp, 1940 struct xfs_inode *ip, 1941 struct xfs_dquot *udqp, 1942 struct xfs_dquot *gdqp, 1943 struct xfs_dquot *pdqp) 1944 { 1945 struct xfs_mount *mp = tp->t_mountp; 1946 1947 if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) 1948 return; 1949 1950 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); 1951 ASSERT(XFS_IS_QUOTA_RUNNING(mp)); 1952 1953 if (udqp && XFS_IS_UQUOTA_ON(mp)) { 1954 ASSERT(ip->i_udquot == NULL); 1955 ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); 1956 1957 ip->i_udquot = xfs_qm_dqhold(udqp); 1958 xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); 1959 } 1960 if (gdqp && XFS_IS_GQUOTA_ON(mp)) { 1961 ASSERT(ip->i_gdquot == NULL); 1962 ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id)); 1963 ip->i_gdquot = xfs_qm_dqhold(gdqp); 1964 xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); 1965 } 1966 if (pdqp && XFS_IS_PQUOTA_ON(mp)) { 1967 ASSERT(ip->i_pdquot == NULL); 1968 ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id)); 1969 1970 ip->i_pdquot = xfs_qm_dqhold(pdqp); 1971 xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); 1972 } 1973 } 1974 1975