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_types.h" 21 #include "xfs_bit.h" 22 #include "xfs_inum.h" 23 #include "xfs_log.h" 24 #include "xfs_trans.h" 25 #include "xfs_sb.h" 26 #include "xfs_ag.h" 27 #include "xfs_dir2.h" 28 #include "xfs_dmapi.h" 29 #include "xfs_mount.h" 30 #include "xfs_bmap_btree.h" 31 #include "xfs_alloc_btree.h" 32 #include "xfs_ialloc_btree.h" 33 #include "xfs_dir2_sf.h" 34 #include "xfs_attr_sf.h" 35 #include "xfs_dinode.h" 36 #include "xfs_inode.h" 37 #include "xfs_inode_item.h" 38 #include "xfs_btree.h" 39 #include "xfs_error.h" 40 #include "xfs_alloc.h" 41 #include "xfs_ialloc.h" 42 #include "xfs_fsops.h" 43 #include "xfs_itable.h" 44 #include "xfs_trans_space.h" 45 #include "xfs_rtalloc.h" 46 #include "xfs_rw.h" 47 48 /* 49 * File system operations 50 */ 51 52 int 53 xfs_fs_geometry( 54 xfs_mount_t *mp, 55 xfs_fsop_geom_t *geo, 56 int new_version) 57 { 58 geo->blocksize = mp->m_sb.sb_blocksize; 59 geo->rtextsize = mp->m_sb.sb_rextsize; 60 geo->agblocks = mp->m_sb.sb_agblocks; 61 geo->agcount = mp->m_sb.sb_agcount; 62 geo->logblocks = mp->m_sb.sb_logblocks; 63 geo->sectsize = mp->m_sb.sb_sectsize; 64 geo->inodesize = mp->m_sb.sb_inodesize; 65 geo->imaxpct = mp->m_sb.sb_imax_pct; 66 geo->datablocks = mp->m_sb.sb_dblocks; 67 geo->rtblocks = mp->m_sb.sb_rblocks; 68 geo->rtextents = mp->m_sb.sb_rextents; 69 geo->logstart = mp->m_sb.sb_logstart; 70 ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid)); 71 memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid)); 72 if (new_version >= 2) { 73 geo->sunit = mp->m_sb.sb_unit; 74 geo->swidth = mp->m_sb.sb_width; 75 } 76 if (new_version >= 3) { 77 geo->version = XFS_FSOP_GEOM_VERSION; 78 geo->flags = 79 (XFS_SB_VERSION_HASATTR(&mp->m_sb) ? 80 XFS_FSOP_GEOM_FLAGS_ATTR : 0) | 81 (XFS_SB_VERSION_HASNLINK(&mp->m_sb) ? 82 XFS_FSOP_GEOM_FLAGS_NLINK : 0) | 83 (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ? 84 XFS_FSOP_GEOM_FLAGS_QUOTA : 0) | 85 (XFS_SB_VERSION_HASALIGN(&mp->m_sb) ? 86 XFS_FSOP_GEOM_FLAGS_IALIGN : 0) | 87 (XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ? 88 XFS_FSOP_GEOM_FLAGS_DALIGN : 0) | 89 (XFS_SB_VERSION_HASSHARED(&mp->m_sb) ? 90 XFS_FSOP_GEOM_FLAGS_SHARED : 0) | 91 (XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ? 92 XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) | 93 (XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ? 94 XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) | 95 (XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? 96 XFS_FSOP_GEOM_FLAGS_SECTOR : 0) | 97 (XFS_SB_VERSION_HASATTR2(&mp->m_sb) ? 98 XFS_FSOP_GEOM_FLAGS_ATTR2 : 0); 99 geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? 100 mp->m_sb.sb_logsectsize : BBSIZE; 101 geo->rtsectsize = mp->m_sb.sb_blocksize; 102 geo->dirblocksize = mp->m_dirblksize; 103 } 104 if (new_version >= 4) { 105 geo->flags |= 106 (XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ? 107 XFS_FSOP_GEOM_FLAGS_LOGV2 : 0); 108 geo->logsunit = mp->m_sb.sb_logsunit; 109 } 110 return 0; 111 } 112 113 static int 114 xfs_growfs_data_private( 115 xfs_mount_t *mp, /* mount point for filesystem */ 116 xfs_growfs_data_t *in) /* growfs data input struct */ 117 { 118 xfs_agf_t *agf; 119 xfs_agi_t *agi; 120 xfs_agnumber_t agno; 121 xfs_extlen_t agsize; 122 xfs_extlen_t tmpsize; 123 xfs_alloc_rec_t *arec; 124 xfs_btree_sblock_t *block; 125 xfs_buf_t *bp; 126 int bucket; 127 int dpct; 128 int error; 129 xfs_agnumber_t nagcount; 130 xfs_agnumber_t nagimax = 0; 131 xfs_rfsblock_t nb, nb_mod; 132 xfs_rfsblock_t new; 133 xfs_rfsblock_t nfree; 134 xfs_agnumber_t oagcount; 135 int pct; 136 xfs_sb_t *sbp; 137 xfs_trans_t *tp; 138 139 nb = in->newblocks; 140 pct = in->imaxpct; 141 if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100) 142 return XFS_ERROR(EINVAL); 143 dpct = pct - mp->m_sb.sb_imax_pct; 144 error = xfs_read_buf(mp, mp->m_ddev_targp, 145 XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), 146 XFS_FSS_TO_BB(mp, 1), 0, &bp); 147 if (error) 148 return error; 149 ASSERT(bp); 150 xfs_buf_relse(bp); 151 152 new = nb; /* use new as a temporary here */ 153 nb_mod = do_div(new, mp->m_sb.sb_agblocks); 154 nagcount = new + (nb_mod != 0); 155 if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) { 156 nagcount--; 157 nb = nagcount * mp->m_sb.sb_agblocks; 158 if (nb < mp->m_sb.sb_dblocks) 159 return XFS_ERROR(EINVAL); 160 } 161 new = nb - mp->m_sb.sb_dblocks; 162 oagcount = mp->m_sb.sb_agcount; 163 if (nagcount > oagcount) { 164 down_write(&mp->m_peraglock); 165 mp->m_perag = kmem_realloc(mp->m_perag, 166 sizeof(xfs_perag_t) * nagcount, 167 sizeof(xfs_perag_t) * oagcount, 168 KM_SLEEP); 169 memset(&mp->m_perag[oagcount], 0, 170 (nagcount - oagcount) * sizeof(xfs_perag_t)); 171 mp->m_flags |= XFS_MOUNT_32BITINODES; 172 nagimax = xfs_initialize_perag(XFS_MTOVFS(mp), mp, nagcount); 173 up_write(&mp->m_peraglock); 174 } 175 tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); 176 if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp), 177 XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) { 178 xfs_trans_cancel(tp, 0); 179 return error; 180 } 181 182 nfree = 0; 183 for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) { 184 /* 185 * AG freelist header block 186 */ 187 bp = xfs_buf_get(mp->m_ddev_targp, 188 XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), 189 XFS_FSS_TO_BB(mp, 1), 0); 190 agf = XFS_BUF_TO_AGF(bp); 191 memset(agf, 0, mp->m_sb.sb_sectsize); 192 agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC); 193 agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION); 194 agf->agf_seqno = cpu_to_be32(agno); 195 if (agno == nagcount - 1) 196 agsize = 197 nb - 198 (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks); 199 else 200 agsize = mp->m_sb.sb_agblocks; 201 agf->agf_length = cpu_to_be32(agsize); 202 agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp)); 203 agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp)); 204 agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1); 205 agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1); 206 agf->agf_flfirst = 0; 207 agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1); 208 agf->agf_flcount = 0; 209 tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp); 210 agf->agf_freeblks = cpu_to_be32(tmpsize); 211 agf->agf_longest = cpu_to_be32(tmpsize); 212 error = xfs_bwrite(mp, bp); 213 if (error) { 214 goto error0; 215 } 216 /* 217 * AG inode header block 218 */ 219 bp = xfs_buf_get(mp->m_ddev_targp, 220 XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), 221 XFS_FSS_TO_BB(mp, 1), 0); 222 agi = XFS_BUF_TO_AGI(bp); 223 memset(agi, 0, mp->m_sb.sb_sectsize); 224 agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC); 225 agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION); 226 agi->agi_seqno = cpu_to_be32(agno); 227 agi->agi_length = cpu_to_be32(agsize); 228 agi->agi_count = 0; 229 agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp)); 230 agi->agi_level = cpu_to_be32(1); 231 agi->agi_freecount = 0; 232 agi->agi_newino = cpu_to_be32(NULLAGINO); 233 agi->agi_dirino = cpu_to_be32(NULLAGINO); 234 for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++) 235 agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO); 236 error = xfs_bwrite(mp, bp); 237 if (error) { 238 goto error0; 239 } 240 /* 241 * BNO btree root block 242 */ 243 bp = xfs_buf_get(mp->m_ddev_targp, 244 XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), 245 BTOBB(mp->m_sb.sb_blocksize), 0); 246 block = XFS_BUF_TO_SBLOCK(bp); 247 memset(block, 0, mp->m_sb.sb_blocksize); 248 block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC); 249 block->bb_level = 0; 250 block->bb_numrecs = cpu_to_be16(1); 251 block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 252 block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 253 arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, 254 block, 1, mp->m_alloc_mxr[0]); 255 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); 256 arec->ar_blockcount = cpu_to_be32( 257 agsize - be32_to_cpu(arec->ar_startblock)); 258 error = xfs_bwrite(mp, bp); 259 if (error) { 260 goto error0; 261 } 262 /* 263 * CNT btree root block 264 */ 265 bp = xfs_buf_get(mp->m_ddev_targp, 266 XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), 267 BTOBB(mp->m_sb.sb_blocksize), 0); 268 block = XFS_BUF_TO_SBLOCK(bp); 269 memset(block, 0, mp->m_sb.sb_blocksize); 270 block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC); 271 block->bb_level = 0; 272 block->bb_numrecs = cpu_to_be16(1); 273 block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 274 block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 275 arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, 276 block, 1, mp->m_alloc_mxr[0]); 277 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); 278 arec->ar_blockcount = cpu_to_be32( 279 agsize - be32_to_cpu(arec->ar_startblock)); 280 nfree += be32_to_cpu(arec->ar_blockcount); 281 error = xfs_bwrite(mp, bp); 282 if (error) { 283 goto error0; 284 } 285 /* 286 * INO btree root block 287 */ 288 bp = xfs_buf_get(mp->m_ddev_targp, 289 XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), 290 BTOBB(mp->m_sb.sb_blocksize), 0); 291 block = XFS_BUF_TO_SBLOCK(bp); 292 memset(block, 0, mp->m_sb.sb_blocksize); 293 block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC); 294 block->bb_level = 0; 295 block->bb_numrecs = 0; 296 block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 297 block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 298 error = xfs_bwrite(mp, bp); 299 if (error) { 300 goto error0; 301 } 302 } 303 xfs_trans_agblocks_delta(tp, nfree); 304 /* 305 * There are new blocks in the old last a.g. 306 */ 307 if (new) { 308 /* 309 * Change the agi length. 310 */ 311 error = xfs_ialloc_read_agi(mp, tp, agno, &bp); 312 if (error) { 313 goto error0; 314 } 315 ASSERT(bp); 316 agi = XFS_BUF_TO_AGI(bp); 317 be32_add(&agi->agi_length, new); 318 ASSERT(nagcount == oagcount || 319 be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks); 320 xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH); 321 /* 322 * Change agf length. 323 */ 324 error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp); 325 if (error) { 326 goto error0; 327 } 328 ASSERT(bp); 329 agf = XFS_BUF_TO_AGF(bp); 330 be32_add(&agf->agf_length, new); 331 ASSERT(be32_to_cpu(agf->agf_length) == 332 be32_to_cpu(agi->agi_length)); 333 /* 334 * Free the new space. 335 */ 336 error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno, 337 be32_to_cpu(agf->agf_length) - new), new); 338 if (error) { 339 goto error0; 340 } 341 } 342 if (nagcount > oagcount) 343 xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount); 344 if (nb > mp->m_sb.sb_dblocks) 345 xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS, 346 nb - mp->m_sb.sb_dblocks); 347 if (nfree) 348 xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree); 349 if (dpct) 350 xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct); 351 error = xfs_trans_commit(tp, 0, NULL); 352 if (error) { 353 return error; 354 } 355 /* New allocation groups fully initialized, so update mount struct */ 356 if (nagimax) 357 mp->m_maxagi = nagimax; 358 if (mp->m_sb.sb_imax_pct) { 359 __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct; 360 do_div(icount, 100); 361 mp->m_maxicount = icount << mp->m_sb.sb_inopblog; 362 } else 363 mp->m_maxicount = 0; 364 for (agno = 1; agno < nagcount; agno++) { 365 error = xfs_read_buf(mp, mp->m_ddev_targp, 366 XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), 367 XFS_FSS_TO_BB(mp, 1), 0, &bp); 368 if (error) { 369 xfs_fs_cmn_err(CE_WARN, mp, 370 "error %d reading secondary superblock for ag %d", 371 error, agno); 372 break; 373 } 374 sbp = XFS_BUF_TO_SBP(bp); 375 xfs_xlatesb(sbp, &mp->m_sb, -1, XFS_SB_ALL_BITS); 376 /* 377 * If we get an error writing out the alternate superblocks, 378 * just issue a warning and continue. The real work is 379 * already done and committed. 380 */ 381 if (!(error = xfs_bwrite(mp, bp))) { 382 continue; 383 } else { 384 xfs_fs_cmn_err(CE_WARN, mp, 385 "write error %d updating secondary superblock for ag %d", 386 error, agno); 387 break; /* no point in continuing */ 388 } 389 } 390 return 0; 391 392 error0: 393 xfs_trans_cancel(tp, XFS_TRANS_ABORT); 394 return error; 395 } 396 397 static int 398 xfs_growfs_log_private( 399 xfs_mount_t *mp, /* mount point for filesystem */ 400 xfs_growfs_log_t *in) /* growfs log input struct */ 401 { 402 xfs_extlen_t nb; 403 404 nb = in->newblocks; 405 if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES)) 406 return XFS_ERROR(EINVAL); 407 if (nb == mp->m_sb.sb_logblocks && 408 in->isint == (mp->m_sb.sb_logstart != 0)) 409 return XFS_ERROR(EINVAL); 410 /* 411 * Moving the log is hard, need new interfaces to sync 412 * the log first, hold off all activity while moving it. 413 * Can have shorter or longer log in the same space, 414 * or transform internal to external log or vice versa. 415 */ 416 return XFS_ERROR(ENOSYS); 417 } 418 419 /* 420 * protected versions of growfs function acquire and release locks on the mount 421 * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG, 422 * XFS_IOC_FSGROWFSRT 423 */ 424 425 426 int 427 xfs_growfs_data( 428 xfs_mount_t *mp, 429 xfs_growfs_data_t *in) 430 { 431 int error; 432 if (!cpsema(&mp->m_growlock)) 433 return XFS_ERROR(EWOULDBLOCK); 434 error = xfs_growfs_data_private(mp, in); 435 vsema(&mp->m_growlock); 436 return error; 437 } 438 439 int 440 xfs_growfs_log( 441 xfs_mount_t *mp, 442 xfs_growfs_log_t *in) 443 { 444 int error; 445 if (!cpsema(&mp->m_growlock)) 446 return XFS_ERROR(EWOULDBLOCK); 447 error = xfs_growfs_log_private(mp, in); 448 vsema(&mp->m_growlock); 449 return error; 450 } 451 452 /* 453 * exported through ioctl XFS_IOC_FSCOUNTS 454 */ 455 456 int 457 xfs_fs_counts( 458 xfs_mount_t *mp, 459 xfs_fsop_counts_t *cnt) 460 { 461 unsigned long s; 462 463 xfs_icsb_sync_counters_lazy(mp); 464 s = XFS_SB_LOCK(mp); 465 cnt->freedata = mp->m_sb.sb_fdblocks; 466 cnt->freertx = mp->m_sb.sb_frextents; 467 cnt->freeino = mp->m_sb.sb_ifree; 468 cnt->allocino = mp->m_sb.sb_icount; 469 XFS_SB_UNLOCK(mp, s); 470 return 0; 471 } 472 473 /* 474 * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS 475 * 476 * xfs_reserve_blocks is called to set m_resblks 477 * in the in-core mount table. The number of unused reserved blocks 478 * is kept in m_resblks_avail. 479 * 480 * Reserve the requested number of blocks if available. Otherwise return 481 * as many as possible to satisfy the request. The actual number 482 * reserved are returned in outval 483 * 484 * A null inval pointer indicates that only the current reserved blocks 485 * available should be returned no settings are changed. 486 */ 487 488 int 489 xfs_reserve_blocks( 490 xfs_mount_t *mp, 491 __uint64_t *inval, 492 xfs_fsop_resblks_t *outval) 493 { 494 __int64_t lcounter, delta; 495 __uint64_t request; 496 unsigned long s; 497 498 /* If inval is null, report current values and return */ 499 500 if (inval == (__uint64_t *)NULL) { 501 outval->resblks = mp->m_resblks; 502 outval->resblks_avail = mp->m_resblks_avail; 503 return 0; 504 } 505 506 request = *inval; 507 s = XFS_SB_LOCK(mp); 508 509 /* 510 * If our previous reservation was larger than the current value, 511 * then move any unused blocks back to the free pool. 512 */ 513 514 if (mp->m_resblks > request) { 515 lcounter = mp->m_resblks_avail - request; 516 if (lcounter > 0) { /* release unused blocks */ 517 mp->m_sb.sb_fdblocks += lcounter; 518 mp->m_resblks_avail -= lcounter; 519 } 520 mp->m_resblks = request; 521 } else { 522 delta = request - mp->m_resblks; 523 lcounter = mp->m_sb.sb_fdblocks - delta; 524 if (lcounter < 0) { 525 /* We can't satisfy the request, just get what we can */ 526 mp->m_resblks += mp->m_sb.sb_fdblocks; 527 mp->m_resblks_avail += mp->m_sb.sb_fdblocks; 528 mp->m_sb.sb_fdblocks = 0; 529 } else { 530 mp->m_sb.sb_fdblocks = lcounter; 531 mp->m_resblks = request; 532 mp->m_resblks_avail += delta; 533 } 534 } 535 536 outval->resblks = mp->m_resblks; 537 outval->resblks_avail = mp->m_resblks_avail; 538 XFS_SB_UNLOCK(mp, s); 539 return 0; 540 } 541 542 void 543 xfs_fs_log_dummy( 544 xfs_mount_t *mp) 545 { 546 xfs_trans_t *tp; 547 xfs_inode_t *ip; 548 549 tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1); 550 if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) { 551 xfs_trans_cancel(tp, 0); 552 return; 553 } 554 555 ip = mp->m_rootip; 556 xfs_ilock(ip, XFS_ILOCK_EXCL); 557 558 xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); 559 xfs_trans_ihold(tp, ip); 560 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); 561 xfs_trans_set_sync(tp); 562 xfs_trans_commit(tp, 0, NULL); 563 564 xfs_iunlock(ip, XFS_ILOCK_EXCL); 565 } 566 567 int 568 xfs_fs_goingdown( 569 xfs_mount_t *mp, 570 __uint32_t inflags) 571 { 572 switch (inflags) { 573 case XFS_FSOP_GOING_FLAGS_DEFAULT: { 574 struct bhv_vfs *vfsp = XFS_MTOVFS(mp); 575 struct super_block *sb = freeze_bdev(vfsp->vfs_super->s_bdev); 576 577 if (sb && !IS_ERR(sb)) { 578 xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT); 579 thaw_bdev(sb->s_bdev, sb); 580 } 581 582 break; 583 } 584 case XFS_FSOP_GOING_FLAGS_LOGFLUSH: 585 xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT); 586 break; 587 case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH: 588 xfs_force_shutdown(mp, 589 SHUTDOWN_FORCE_UMOUNT | SHUTDOWN_LOG_IO_ERROR); 590 break; 591 default: 592 return XFS_ERROR(EINVAL); 593 } 594 595 return 0; 596 } 597