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_dir.h" 28#include "xfs_dir2.h" 29#include "xfs_dmapi.h" 30#include "xfs_mount.h" 31#include "xfs_bmap_btree.h" 32#include "xfs_alloc_btree.h" 33#include "xfs_ialloc_btree.h" 34#include "xfs_dir_sf.h" 35#include "xfs_dir2_sf.h" 36#include "xfs_attr_sf.h" 37#include "xfs_dinode.h" 38#include "xfs_inode.h" 39#include "xfs_inode_item.h" 40#include "xfs_btree.h" 41#include "xfs_error.h" 42#include "xfs_alloc.h" 43#include "xfs_ialloc.h" 44#include "xfs_fsops.h" 45#include "xfs_itable.h" 46#include "xfs_trans_space.h" 47#include "xfs_rtalloc.h" 48#include "xfs_rw.h" 49 50/* 51 * File system operations 52 */ 53 54int 55xfs_fs_geometry( 56 xfs_mount_t *mp, 57 xfs_fsop_geom_t *geo, 58 int new_version) 59{ 60 geo->blocksize = mp->m_sb.sb_blocksize; 61 geo->rtextsize = mp->m_sb.sb_rextsize; 62 geo->agblocks = mp->m_sb.sb_agblocks; 63 geo->agcount = mp->m_sb.sb_agcount; 64 geo->logblocks = mp->m_sb.sb_logblocks; 65 geo->sectsize = mp->m_sb.sb_sectsize; 66 geo->inodesize = mp->m_sb.sb_inodesize; 67 geo->imaxpct = mp->m_sb.sb_imax_pct; 68 geo->datablocks = mp->m_sb.sb_dblocks; 69 geo->rtblocks = mp->m_sb.sb_rblocks; 70 geo->rtextents = mp->m_sb.sb_rextents; 71 geo->logstart = mp->m_sb.sb_logstart; 72 ASSERT(sizeof(geo->uuid)==sizeof(mp->m_sb.sb_uuid)); 73 memcpy(geo->uuid, &mp->m_sb.sb_uuid, sizeof(mp->m_sb.sb_uuid)); 74 if (new_version >= 2) { 75 geo->sunit = mp->m_sb.sb_unit; 76 geo->swidth = mp->m_sb.sb_width; 77 } 78 if (new_version >= 3) { 79 geo->version = XFS_FSOP_GEOM_VERSION; 80 geo->flags = 81 (XFS_SB_VERSION_HASATTR(&mp->m_sb) ? 82 XFS_FSOP_GEOM_FLAGS_ATTR : 0) | 83 (XFS_SB_VERSION_HASNLINK(&mp->m_sb) ? 84 XFS_FSOP_GEOM_FLAGS_NLINK : 0) | 85 (XFS_SB_VERSION_HASQUOTA(&mp->m_sb) ? 86 XFS_FSOP_GEOM_FLAGS_QUOTA : 0) | 87 (XFS_SB_VERSION_HASALIGN(&mp->m_sb) ? 88 XFS_FSOP_GEOM_FLAGS_IALIGN : 0) | 89 (XFS_SB_VERSION_HASDALIGN(&mp->m_sb) ? 90 XFS_FSOP_GEOM_FLAGS_DALIGN : 0) | 91 (XFS_SB_VERSION_HASSHARED(&mp->m_sb) ? 92 XFS_FSOP_GEOM_FLAGS_SHARED : 0) | 93 (XFS_SB_VERSION_HASEXTFLGBIT(&mp->m_sb) ? 94 XFS_FSOP_GEOM_FLAGS_EXTFLG : 0) | 95 (XFS_SB_VERSION_HASDIRV2(&mp->m_sb) ? 96 XFS_FSOP_GEOM_FLAGS_DIRV2 : 0) | 97 (XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? 98 XFS_FSOP_GEOM_FLAGS_SECTOR : 0) | 99 (XFS_SB_VERSION_HASATTR2(&mp->m_sb) ? 100 XFS_FSOP_GEOM_FLAGS_ATTR2 : 0); 101 geo->logsectsize = XFS_SB_VERSION_HASSECTOR(&mp->m_sb) ? 102 mp->m_sb.sb_logsectsize : BBSIZE; 103 geo->rtsectsize = mp->m_sb.sb_blocksize; 104 geo->dirblocksize = mp->m_dirblksize; 105 } 106 if (new_version >= 4) { 107 geo->flags |= 108 (XFS_SB_VERSION_HASLOGV2(&mp->m_sb) ? 109 XFS_FSOP_GEOM_FLAGS_LOGV2 : 0); 110 geo->logsunit = mp->m_sb.sb_logsunit; 111 } 112 return 0; 113} 114 115static int 116xfs_growfs_data_private( 117 xfs_mount_t *mp, /* mount point for filesystem */ 118 xfs_growfs_data_t *in) /* growfs data input struct */ 119{ 120 xfs_agf_t *agf; 121 xfs_agi_t *agi; 122 xfs_agnumber_t agno; 123 xfs_extlen_t agsize; 124 xfs_extlen_t tmpsize; 125 xfs_alloc_rec_t *arec; 126 xfs_btree_sblock_t *block; 127 xfs_buf_t *bp; 128 int bucket; 129 int dpct; 130 int error; 131 xfs_agnumber_t nagcount; 132 xfs_agnumber_t nagimax = 0; 133 xfs_rfsblock_t nb, nb_mod; 134 xfs_rfsblock_t new; 135 xfs_rfsblock_t nfree; 136 xfs_agnumber_t oagcount; 137 int pct; 138 xfs_sb_t *sbp; 139 xfs_trans_t *tp; 140 141 nb = in->newblocks; 142 pct = in->imaxpct; 143 if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100) 144 return XFS_ERROR(EINVAL); 145 dpct = pct - mp->m_sb.sb_imax_pct; 146 error = xfs_read_buf(mp, mp->m_ddev_targp, 147 XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1), 148 XFS_FSS_TO_BB(mp, 1), 0, &bp); 149 if (error) 150 return error; 151 ASSERT(bp); 152 xfs_buf_relse(bp); 153 154 new = nb; /* use new as a temporary here */ 155 nb_mod = do_div(new, mp->m_sb.sb_agblocks); 156 nagcount = new + (nb_mod != 0); 157 if (nb_mod && nb_mod < XFS_MIN_AG_BLOCKS) { 158 nagcount--; 159 nb = nagcount * mp->m_sb.sb_agblocks; 160 if (nb < mp->m_sb.sb_dblocks) 161 return XFS_ERROR(EINVAL); 162 } 163 new = nb - mp->m_sb.sb_dblocks; 164 oagcount = mp->m_sb.sb_agcount; 165 if (nagcount > oagcount) { 166 down_write(&mp->m_peraglock); 167 mp->m_perag = kmem_realloc(mp->m_perag, 168 sizeof(xfs_perag_t) * nagcount, 169 sizeof(xfs_perag_t) * oagcount, 170 KM_SLEEP); 171 memset(&mp->m_perag[oagcount], 0, 172 (nagcount - oagcount) * sizeof(xfs_perag_t)); 173 mp->m_flags |= XFS_MOUNT_32BITINODES; 174 nagimax = xfs_initialize_perag(XFS_MTOVFS(mp), mp, nagcount); 175 up_write(&mp->m_peraglock); 176 } 177 tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFS); 178 if ((error = xfs_trans_reserve(tp, XFS_GROWFS_SPACE_RES(mp), 179 XFS_GROWDATA_LOG_RES(mp), 0, 0, 0))) { 180 xfs_trans_cancel(tp, 0); 181 return error; 182 } 183 184 nfree = 0; 185 for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) { 186 /* 187 * AG freelist header block 188 */ 189 bp = xfs_buf_get(mp->m_ddev_targp, 190 XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)), 191 XFS_FSS_TO_BB(mp, 1), 0); 192 agf = XFS_BUF_TO_AGF(bp); 193 memset(agf, 0, mp->m_sb.sb_sectsize); 194 agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC); 195 agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION); 196 agf->agf_seqno = cpu_to_be32(agno); 197 if (agno == nagcount - 1) 198 agsize = 199 nb - 200 (agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks); 201 else 202 agsize = mp->m_sb.sb_agblocks; 203 agf->agf_length = cpu_to_be32(agsize); 204 agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp)); 205 agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp)); 206 agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1); 207 agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1); 208 agf->agf_flfirst = 0; 209 agf->agf_fllast = cpu_to_be32(XFS_AGFL_SIZE(mp) - 1); 210 agf->agf_flcount = 0; 211 tmpsize = agsize - XFS_PREALLOC_BLOCKS(mp); 212 agf->agf_freeblks = cpu_to_be32(tmpsize); 213 agf->agf_longest = cpu_to_be32(tmpsize); 214 error = xfs_bwrite(mp, bp); 215 if (error) { 216 goto error0; 217 } 218 /* 219 * AG inode header block 220 */ 221 bp = xfs_buf_get(mp->m_ddev_targp, 222 XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)), 223 XFS_FSS_TO_BB(mp, 1), 0); 224 agi = XFS_BUF_TO_AGI(bp); 225 memset(agi, 0, mp->m_sb.sb_sectsize); 226 agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC); 227 agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION); 228 agi->agi_seqno = cpu_to_be32(agno); 229 agi->agi_length = cpu_to_be32(agsize); 230 agi->agi_count = 0; 231 agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp)); 232 agi->agi_level = cpu_to_be32(1); 233 agi->agi_freecount = 0; 234 agi->agi_newino = cpu_to_be32(NULLAGINO); 235 agi->agi_dirino = cpu_to_be32(NULLAGINO); 236 for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++) 237 agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO); 238 error = xfs_bwrite(mp, bp); 239 if (error) { 240 goto error0; 241 } 242 /* 243 * BNO btree root block 244 */ 245 bp = xfs_buf_get(mp->m_ddev_targp, 246 XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)), 247 BTOBB(mp->m_sb.sb_blocksize), 0); 248 block = XFS_BUF_TO_SBLOCK(bp); 249 memset(block, 0, mp->m_sb.sb_blocksize); 250 block->bb_magic = cpu_to_be32(XFS_ABTB_MAGIC); 251 block->bb_level = 0; 252 block->bb_numrecs = cpu_to_be16(1); 253 block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 254 block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 255 arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, 256 block, 1, mp->m_alloc_mxr[0]); 257 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); 258 arec->ar_blockcount = cpu_to_be32( 259 agsize - be32_to_cpu(arec->ar_startblock)); 260 error = xfs_bwrite(mp, bp); 261 if (error) { 262 goto error0; 263 } 264 /* 265 * CNT btree root block 266 */ 267 bp = xfs_buf_get(mp->m_ddev_targp, 268 XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)), 269 BTOBB(mp->m_sb.sb_blocksize), 0); 270 block = XFS_BUF_TO_SBLOCK(bp); 271 memset(block, 0, mp->m_sb.sb_blocksize); 272 block->bb_magic = cpu_to_be32(XFS_ABTC_MAGIC); 273 block->bb_level = 0; 274 block->bb_numrecs = cpu_to_be16(1); 275 block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 276 block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 277 arec = XFS_BTREE_REC_ADDR(mp->m_sb.sb_blocksize, xfs_alloc, 278 block, 1, mp->m_alloc_mxr[0]); 279 arec->ar_startblock = cpu_to_be32(XFS_PREALLOC_BLOCKS(mp)); 280 arec->ar_blockcount = cpu_to_be32( 281 agsize - be32_to_cpu(arec->ar_startblock)); 282 nfree += be32_to_cpu(arec->ar_blockcount); 283 error = xfs_bwrite(mp, bp); 284 if (error) { 285 goto error0; 286 } 287 /* 288 * INO btree root block 289 */ 290 bp = xfs_buf_get(mp->m_ddev_targp, 291 XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)), 292 BTOBB(mp->m_sb.sb_blocksize), 0); 293 block = XFS_BUF_TO_SBLOCK(bp); 294 memset(block, 0, mp->m_sb.sb_blocksize); 295 block->bb_magic = cpu_to_be32(XFS_IBT_MAGIC); 296 block->bb_level = 0; 297 block->bb_numrecs = 0; 298 block->bb_leftsib = cpu_to_be32(NULLAGBLOCK); 299 block->bb_rightsib = cpu_to_be32(NULLAGBLOCK); 300 error = xfs_bwrite(mp, bp); 301 if (error) { 302 goto error0; 303 } 304 } 305 xfs_trans_agblocks_delta(tp, nfree); 306 /* 307 * There are new blocks in the old last a.g. 308 */ 309 if (new) { 310 /* 311 * Change the agi length. 312 */ 313 error = xfs_ialloc_read_agi(mp, tp, agno, &bp); 314 if (error) { 315 goto error0; 316 } 317 ASSERT(bp); 318 agi = XFS_BUF_TO_AGI(bp); 319 be32_add(&agi->agi_length, new); 320 ASSERT(nagcount == oagcount || 321 be32_to_cpu(agi->agi_length) == mp->m_sb.sb_agblocks); 322 xfs_ialloc_log_agi(tp, bp, XFS_AGI_LENGTH); 323 /* 324 * Change agf length. 325 */ 326 error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp); 327 if (error) { 328 goto error0; 329 } 330 ASSERT(bp); 331 agf = XFS_BUF_TO_AGF(bp); 332 be32_add(&agf->agf_length, new); 333 ASSERT(be32_to_cpu(agf->agf_length) == 334 be32_to_cpu(agi->agi_length)); 335 /* 336 * Free the new space. 337 */ 338 error = xfs_free_extent(tp, XFS_AGB_TO_FSB(mp, agno, 339 be32_to_cpu(agf->agf_length) - new), new); 340 if (error) { 341 goto error0; 342 } 343 } 344 if (nagcount > oagcount) 345 xfs_trans_mod_sb(tp, XFS_TRANS_SB_AGCOUNT, nagcount - oagcount); 346 if (nb > mp->m_sb.sb_dblocks) 347 xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS, 348 nb - mp->m_sb.sb_dblocks); 349 if (nfree) 350 xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree); 351 if (dpct) 352 xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct); 353 error = xfs_trans_commit(tp, 0, NULL); 354 if (error) { 355 return error; 356 } 357 /* New allocation groups fully initialized, so update mount struct */ 358 if (nagimax) 359 mp->m_maxagi = nagimax; 360 if (mp->m_sb.sb_imax_pct) { 361 __uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct; 362 do_div(icount, 100); 363 mp->m_maxicount = icount << mp->m_sb.sb_inopblog; 364 } else 365 mp->m_maxicount = 0; 366 for (agno = 1; agno < nagcount; agno++) { 367 error = xfs_read_buf(mp, mp->m_ddev_targp, 368 XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)), 369 XFS_FSS_TO_BB(mp, 1), 0, &bp); 370 if (error) { 371 xfs_fs_cmn_err(CE_WARN, mp, 372 "error %d reading secondary superblock for ag %d", 373 error, agno); 374 break; 375 } 376 sbp = XFS_BUF_TO_SBP(bp); 377 xfs_xlatesb(sbp, &mp->m_sb, -1, XFS_SB_ALL_BITS); 378 /* 379 * If we get an error writing out the alternate superblocks, 380 * just issue a warning and continue. The real work is 381 * already done and committed. 382 */ 383 if (!(error = xfs_bwrite(mp, bp))) { 384 continue; 385 } else { 386 xfs_fs_cmn_err(CE_WARN, mp, 387 "write error %d updating secondary superblock for ag %d", 388 error, agno); 389 break; /* no point in continuing */ 390 } 391 } 392 return 0; 393 394 error0: 395 xfs_trans_cancel(tp, XFS_TRANS_ABORT); 396 return error; 397} 398 399static int 400xfs_growfs_log_private( 401 xfs_mount_t *mp, /* mount point for filesystem */ 402 xfs_growfs_log_t *in) /* growfs log input struct */ 403{ 404 xfs_extlen_t nb; 405 406 nb = in->newblocks; 407 if (nb < XFS_MIN_LOG_BLOCKS || nb < XFS_B_TO_FSB(mp, XFS_MIN_LOG_BYTES)) 408 return XFS_ERROR(EINVAL); 409 if (nb == mp->m_sb.sb_logblocks && 410 in->isint == (mp->m_sb.sb_logstart != 0)) 411 return XFS_ERROR(EINVAL); 412 /* 413 * Moving the log is hard, need new interfaces to sync 414 * the log first, hold off all activity while moving it. 415 * Can have shorter or longer log in the same space, 416 * or transform internal to external log or vice versa. 417 */ 418 return XFS_ERROR(ENOSYS); 419} 420 421/* 422 * protected versions of growfs function acquire and release locks on the mount 423 * point - exported through ioctls: XFS_IOC_FSGROWFSDATA, XFS_IOC_FSGROWFSLOG, 424 * XFS_IOC_FSGROWFSRT 425 */ 426 427 428int 429xfs_growfs_data( 430 xfs_mount_t *mp, 431 xfs_growfs_data_t *in) 432{ 433 int error; 434 if (!cpsema(&mp->m_growlock)) 435 return XFS_ERROR(EWOULDBLOCK); 436 error = xfs_growfs_data_private(mp, in); 437 vsema(&mp->m_growlock); 438 return error; 439} 440 441int 442xfs_growfs_log( 443 xfs_mount_t *mp, 444 xfs_growfs_log_t *in) 445{ 446 int error; 447 if (!cpsema(&mp->m_growlock)) 448 return XFS_ERROR(EWOULDBLOCK); 449 error = xfs_growfs_log_private(mp, in); 450 vsema(&mp->m_growlock); 451 return error; 452} 453 454/* 455 * exported through ioctl XFS_IOC_FSCOUNTS 456 */ 457 458int 459xfs_fs_counts( 460 xfs_mount_t *mp, 461 xfs_fsop_counts_t *cnt) 462{ 463 unsigned long s; 464 465 xfs_icsb_sync_counters_lazy(mp); 466 s = XFS_SB_LOCK(mp); 467 cnt->freedata = mp->m_sb.sb_fdblocks; 468 cnt->freertx = mp->m_sb.sb_frextents; 469 cnt->freeino = mp->m_sb.sb_ifree; 470 cnt->allocino = mp->m_sb.sb_icount; 471 XFS_SB_UNLOCK(mp, s); 472 return 0; 473} 474 475/* 476 * exported through ioctl XFS_IOC_SET_RESBLKS & XFS_IOC_GET_RESBLKS 477 * 478 * xfs_reserve_blocks is called to set m_resblks 479 * in the in-core mount table. The number of unused reserved blocks 480 * is kept in m_resblks_avail. 481 * 482 * Reserve the requested number of blocks if available. Otherwise return 483 * as many as possible to satisfy the request. The actual number 484 * reserved are returned in outval 485 * 486 * A null inval pointer indicates that only the current reserved blocks 487 * available should be returned no settings are changed. 488 */ 489 490int 491xfs_reserve_blocks( 492 xfs_mount_t *mp, 493 __uint64_t *inval, 494 xfs_fsop_resblks_t *outval) 495{ 496 __int64_t lcounter, delta; 497 __uint64_t request; 498 unsigned long s; 499 500 /* If inval is null, report current values and return */ 501 502 if (inval == (__uint64_t *)NULL) { 503 outval->resblks = mp->m_resblks; 504 outval->resblks_avail = mp->m_resblks_avail; 505 return 0; 506 } 507 508 request = *inval; 509 s = XFS_SB_LOCK(mp); 510 511 /* 512 * If our previous reservation was larger than the current value, 513 * then move any unused blocks back to the free pool. 514 */ 515 516 if (mp->m_resblks > request) { 517 lcounter = mp->m_resblks_avail - request; 518 if (lcounter > 0) { /* release unused blocks */ 519 mp->m_sb.sb_fdblocks += lcounter; 520 mp->m_resblks_avail -= lcounter; 521 } 522 mp->m_resblks = request; 523 } else { 524 delta = request - mp->m_resblks; 525 lcounter = mp->m_sb.sb_fdblocks - delta; 526 if (lcounter < 0) { 527 /* We can't satisfy the request, just get what we can */ 528 mp->m_resblks += mp->m_sb.sb_fdblocks; 529 mp->m_resblks_avail += mp->m_sb.sb_fdblocks; 530 mp->m_sb.sb_fdblocks = 0; 531 } else { 532 mp->m_sb.sb_fdblocks = lcounter; 533 mp->m_resblks = request; 534 mp->m_resblks_avail += delta; 535 } 536 } 537 538 outval->resblks = mp->m_resblks; 539 outval->resblks_avail = mp->m_resblks_avail; 540 XFS_SB_UNLOCK(mp, s); 541 return 0; 542} 543 544void 545xfs_fs_log_dummy(xfs_mount_t *mp) 546{ 547 xfs_trans_t *tp; 548 xfs_inode_t *ip; 549 550 551 tp = _xfs_trans_alloc(mp, XFS_TRANS_DUMMY1); 552 atomic_inc(&mp->m_active_trans); 553 if (xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), 0, 0, 0)) { 554 xfs_trans_cancel(tp, 0); 555 return; 556 } 557 558 ip = mp->m_rootip; 559 xfs_ilock(ip, XFS_ILOCK_EXCL); 560 561 xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL); 562 xfs_trans_ihold(tp, ip); 563 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); 564 xfs_trans_set_sync(tp); 565 xfs_trans_commit(tp, 0, NULL); 566 567 xfs_iunlock(ip, XFS_ILOCK_EXCL); 568} 569 570int 571xfs_fs_goingdown( 572 xfs_mount_t *mp, 573 __uint32_t inflags) 574{ 575 switch (inflags) { 576 case XFS_FSOP_GOING_FLAGS_DEFAULT: { 577#ifdef RMC 578 struct xfs_vfs *vfsp = XFS_MTOVFS(mp); 579 struct super_block *sb = freeze_bdev(vfsp->vfs_super->s_bdev); 580 581 if (sb && !IS_ERR(sb)) { 582 xfs_force_shutdown(mp, XFS_FORCE_UMOUNT); 583 thaw_bdev(sb->s_bdev, sb); 584 } 585#endif 586 break; 587 } 588 case XFS_FSOP_GOING_FLAGS_LOGFLUSH: 589 xfs_force_shutdown(mp, XFS_FORCE_UMOUNT); 590 break; 591 case XFS_FSOP_GOING_FLAGS_NOLOGFLUSH: 592 xfs_force_shutdown(mp, XFS_FORCE_UMOUNT|XFS_LOG_IO_ERROR); 593 break; 594 default: 595 return XFS_ERROR(EINVAL); 596 } 597 598 return 0; 599} 600