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