diff options
Diffstat (limited to 'fs/xfs/xfs_vfsops.c')
| -rw-r--r-- | fs/xfs/xfs_vfsops.c | 610 |
1 files changed, 3 insertions, 607 deletions
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c index 30bacd8bb0e5..4a9a43315a86 100644 --- a/fs/xfs/xfs_vfsops.c +++ b/fs/xfs/xfs_vfsops.c | |||
| @@ -58,586 +58,6 @@ | |||
| 58 | #include "xfs_utils.h" | 58 | #include "xfs_utils.h" |
| 59 | 59 | ||
| 60 | 60 | ||
| 61 | int __init | ||
| 62 | xfs_init(void) | ||
| 63 | { | ||
| 64 | #ifdef XFS_DABUF_DEBUG | ||
| 65 | extern spinlock_t xfs_dabuf_global_lock; | ||
| 66 | spin_lock_init(&xfs_dabuf_global_lock); | ||
| 67 | #endif | ||
| 68 | |||
| 69 | /* | ||
| 70 | * Initialize all of the zone allocators we use. | ||
| 71 | */ | ||
| 72 | xfs_log_ticket_zone = kmem_zone_init(sizeof(xlog_ticket_t), | ||
| 73 | "xfs_log_ticket"); | ||
| 74 | xfs_bmap_free_item_zone = kmem_zone_init(sizeof(xfs_bmap_free_item_t), | ||
| 75 | "xfs_bmap_free_item"); | ||
| 76 | xfs_btree_cur_zone = kmem_zone_init(sizeof(xfs_btree_cur_t), | ||
| 77 | "xfs_btree_cur"); | ||
| 78 | xfs_da_state_zone = kmem_zone_init(sizeof(xfs_da_state_t), | ||
| 79 | "xfs_da_state"); | ||
| 80 | xfs_dabuf_zone = kmem_zone_init(sizeof(xfs_dabuf_t), "xfs_dabuf"); | ||
| 81 | xfs_ifork_zone = kmem_zone_init(sizeof(xfs_ifork_t), "xfs_ifork"); | ||
| 82 | xfs_trans_zone = kmem_zone_init(sizeof(xfs_trans_t), "xfs_trans"); | ||
| 83 | xfs_acl_zone_init(xfs_acl_zone, "xfs_acl"); | ||
| 84 | xfs_mru_cache_init(); | ||
| 85 | xfs_filestream_init(); | ||
| 86 | |||
| 87 | /* | ||
| 88 | * The size of the zone allocated buf log item is the maximum | ||
| 89 | * size possible under XFS. This wastes a little bit of memory, | ||
| 90 | * but it is much faster. | ||
| 91 | */ | ||
| 92 | xfs_buf_item_zone = | ||
| 93 | kmem_zone_init((sizeof(xfs_buf_log_item_t) + | ||
| 94 | (((XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK) / | ||
| 95 | NBWORD) * sizeof(int))), | ||
| 96 | "xfs_buf_item"); | ||
| 97 | xfs_efd_zone = | ||
| 98 | kmem_zone_init((sizeof(xfs_efd_log_item_t) + | ||
| 99 | ((XFS_EFD_MAX_FAST_EXTENTS - 1) * | ||
| 100 | sizeof(xfs_extent_t))), | ||
| 101 | "xfs_efd_item"); | ||
| 102 | xfs_efi_zone = | ||
| 103 | kmem_zone_init((sizeof(xfs_efi_log_item_t) + | ||
| 104 | ((XFS_EFI_MAX_FAST_EXTENTS - 1) * | ||
| 105 | sizeof(xfs_extent_t))), | ||
| 106 | "xfs_efi_item"); | ||
| 107 | |||
| 108 | /* | ||
| 109 | * These zones warrant special memory allocator hints | ||
| 110 | */ | ||
| 111 | xfs_inode_zone = | ||
| 112 | kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode", | ||
| 113 | KM_ZONE_HWALIGN | KM_ZONE_RECLAIM | | ||
| 114 | KM_ZONE_SPREAD, NULL); | ||
| 115 | xfs_ili_zone = | ||
| 116 | kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili", | ||
| 117 | KM_ZONE_SPREAD, NULL); | ||
| 118 | |||
| 119 | /* | ||
| 120 | * Allocate global trace buffers. | ||
| 121 | */ | ||
| 122 | #ifdef XFS_ALLOC_TRACE | ||
| 123 | xfs_alloc_trace_buf = ktrace_alloc(XFS_ALLOC_TRACE_SIZE, KM_SLEEP); | ||
| 124 | #endif | ||
| 125 | #ifdef XFS_BMAP_TRACE | ||
| 126 | xfs_bmap_trace_buf = ktrace_alloc(XFS_BMAP_TRACE_SIZE, KM_SLEEP); | ||
| 127 | #endif | ||
| 128 | #ifdef XFS_BMBT_TRACE | ||
| 129 | xfs_bmbt_trace_buf = ktrace_alloc(XFS_BMBT_TRACE_SIZE, KM_SLEEP); | ||
| 130 | #endif | ||
| 131 | #ifdef XFS_ATTR_TRACE | ||
| 132 | xfs_attr_trace_buf = ktrace_alloc(XFS_ATTR_TRACE_SIZE, KM_SLEEP); | ||
| 133 | #endif | ||
| 134 | #ifdef XFS_DIR2_TRACE | ||
| 135 | xfs_dir2_trace_buf = ktrace_alloc(XFS_DIR2_GTRACE_SIZE, KM_SLEEP); | ||
| 136 | #endif | ||
| 137 | |||
| 138 | xfs_dir_startup(); | ||
| 139 | |||
| 140 | #if (defined(DEBUG) || defined(INDUCE_IO_ERROR)) | ||
| 141 | xfs_error_test_init(); | ||
| 142 | #endif /* DEBUG || INDUCE_IO_ERROR */ | ||
| 143 | |||
| 144 | xfs_init_procfs(); | ||
| 145 | xfs_sysctl_register(); | ||
| 146 | return 0; | ||
| 147 | } | ||
| 148 | |||
| 149 | void __exit | ||
| 150 | xfs_cleanup(void) | ||
| 151 | { | ||
| 152 | extern kmem_zone_t *xfs_inode_zone; | ||
| 153 | extern kmem_zone_t *xfs_efd_zone; | ||
| 154 | extern kmem_zone_t *xfs_efi_zone; | ||
| 155 | |||
| 156 | xfs_cleanup_procfs(); | ||
| 157 | xfs_sysctl_unregister(); | ||
| 158 | xfs_filestream_uninit(); | ||
| 159 | xfs_mru_cache_uninit(); | ||
| 160 | xfs_acl_zone_destroy(xfs_acl_zone); | ||
| 161 | |||
| 162 | #ifdef XFS_DIR2_TRACE | ||
| 163 | ktrace_free(xfs_dir2_trace_buf); | ||
| 164 | #endif | ||
| 165 | #ifdef XFS_ATTR_TRACE | ||
| 166 | ktrace_free(xfs_attr_trace_buf); | ||
| 167 | #endif | ||
| 168 | #ifdef XFS_BMBT_TRACE | ||
| 169 | ktrace_free(xfs_bmbt_trace_buf); | ||
| 170 | #endif | ||
| 171 | #ifdef XFS_BMAP_TRACE | ||
| 172 | ktrace_free(xfs_bmap_trace_buf); | ||
| 173 | #endif | ||
| 174 | #ifdef XFS_ALLOC_TRACE | ||
| 175 | ktrace_free(xfs_alloc_trace_buf); | ||
| 176 | #endif | ||
| 177 | |||
| 178 | kmem_zone_destroy(xfs_bmap_free_item_zone); | ||
| 179 | kmem_zone_destroy(xfs_btree_cur_zone); | ||
| 180 | kmem_zone_destroy(xfs_inode_zone); | ||
| 181 | kmem_zone_destroy(xfs_trans_zone); | ||
| 182 | kmem_zone_destroy(xfs_da_state_zone); | ||
| 183 | kmem_zone_destroy(xfs_dabuf_zone); | ||
| 184 | kmem_zone_destroy(xfs_buf_item_zone); | ||
| 185 | kmem_zone_destroy(xfs_efd_zone); | ||
| 186 | kmem_zone_destroy(xfs_efi_zone); | ||
| 187 | kmem_zone_destroy(xfs_ifork_zone); | ||
| 188 | kmem_zone_destroy(xfs_ili_zone); | ||
| 189 | kmem_zone_destroy(xfs_log_ticket_zone); | ||
| 190 | } | ||
| 191 | |||
| 192 | /* | ||
| 193 | * xfs_start_flags | ||
| 194 | * | ||
| 195 | * This function fills in xfs_mount_t fields based on mount args. | ||
| 196 | * Note: the superblock has _not_ yet been read in. | ||
| 197 | */ | ||
| 198 | STATIC int | ||
| 199 | xfs_start_flags( | ||
| 200 | struct xfs_mount_args *ap, | ||
| 201 | struct xfs_mount *mp) | ||
| 202 | { | ||
| 203 | /* Values are in BBs */ | ||
| 204 | if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) { | ||
| 205 | /* | ||
| 206 | * At this point the superblock has not been read | ||
| 207 | * in, therefore we do not know the block size. | ||
| 208 | * Before the mount call ends we will convert | ||
| 209 | * these to FSBs. | ||
| 210 | */ | ||
| 211 | mp->m_dalign = ap->sunit; | ||
| 212 | mp->m_swidth = ap->swidth; | ||
| 213 | } | ||
| 214 | |||
| 215 | if (ap->logbufs != -1 && | ||
| 216 | ap->logbufs != 0 && | ||
| 217 | (ap->logbufs < XLOG_MIN_ICLOGS || | ||
| 218 | ap->logbufs > XLOG_MAX_ICLOGS)) { | ||
| 219 | cmn_err(CE_WARN, | ||
| 220 | "XFS: invalid logbufs value: %d [not %d-%d]", | ||
| 221 | ap->logbufs, XLOG_MIN_ICLOGS, XLOG_MAX_ICLOGS); | ||
| 222 | return XFS_ERROR(EINVAL); | ||
| 223 | } | ||
| 224 | mp->m_logbufs = ap->logbufs; | ||
| 225 | if (ap->logbufsize != -1 && | ||
| 226 | ap->logbufsize != 0 && | ||
| 227 | (ap->logbufsize < XLOG_MIN_RECORD_BSIZE || | ||
| 228 | ap->logbufsize > XLOG_MAX_RECORD_BSIZE || | ||
| 229 | !is_power_of_2(ap->logbufsize))) { | ||
| 230 | cmn_err(CE_WARN, | ||
| 231 | "XFS: invalid logbufsize: %d [not 16k,32k,64k,128k or 256k]", | ||
| 232 | ap->logbufsize); | ||
| 233 | return XFS_ERROR(EINVAL); | ||
| 234 | } | ||
| 235 | mp->m_logbsize = ap->logbufsize; | ||
| 236 | mp->m_fsname_len = strlen(ap->fsname) + 1; | ||
| 237 | mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP); | ||
| 238 | strcpy(mp->m_fsname, ap->fsname); | ||
| 239 | if (ap->rtname[0]) { | ||
| 240 | mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP); | ||
| 241 | strcpy(mp->m_rtname, ap->rtname); | ||
| 242 | } | ||
| 243 | if (ap->logname[0]) { | ||
| 244 | mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP); | ||
| 245 | strcpy(mp->m_logname, ap->logname); | ||
| 246 | } | ||
| 247 | |||
| 248 | if (ap->flags & XFSMNT_WSYNC) | ||
| 249 | mp->m_flags |= XFS_MOUNT_WSYNC; | ||
| 250 | #if XFS_BIG_INUMS | ||
| 251 | if (ap->flags & XFSMNT_INO64) { | ||
| 252 | mp->m_flags |= XFS_MOUNT_INO64; | ||
| 253 | mp->m_inoadd = XFS_INO64_OFFSET; | ||
| 254 | } | ||
| 255 | #endif | ||
| 256 | if (ap->flags & XFSMNT_RETERR) | ||
| 257 | mp->m_flags |= XFS_MOUNT_RETERR; | ||
| 258 | if (ap->flags & XFSMNT_NOALIGN) | ||
| 259 | mp->m_flags |= XFS_MOUNT_NOALIGN; | ||
| 260 | if (ap->flags & XFSMNT_SWALLOC) | ||
| 261 | mp->m_flags |= XFS_MOUNT_SWALLOC; | ||
| 262 | if (ap->flags & XFSMNT_OSYNCISOSYNC) | ||
| 263 | mp->m_flags |= XFS_MOUNT_OSYNCISOSYNC; | ||
| 264 | if (ap->flags & XFSMNT_32BITINODES) | ||
| 265 | mp->m_flags |= XFS_MOUNT_32BITINODES; | ||
| 266 | |||
| 267 | if (ap->flags & XFSMNT_IOSIZE) { | ||
| 268 | if (ap->iosizelog > XFS_MAX_IO_LOG || | ||
| 269 | ap->iosizelog < XFS_MIN_IO_LOG) { | ||
| 270 | cmn_err(CE_WARN, | ||
| 271 | "XFS: invalid log iosize: %d [not %d-%d]", | ||
| 272 | ap->iosizelog, XFS_MIN_IO_LOG, | ||
| 273 | XFS_MAX_IO_LOG); | ||
| 274 | return XFS_ERROR(EINVAL); | ||
| 275 | } | ||
| 276 | |||
| 277 | mp->m_flags |= XFS_MOUNT_DFLT_IOSIZE; | ||
| 278 | mp->m_readio_log = mp->m_writeio_log = ap->iosizelog; | ||
| 279 | } | ||
| 280 | |||
| 281 | if (ap->flags & XFSMNT_IKEEP) | ||
| 282 | mp->m_flags |= XFS_MOUNT_IKEEP; | ||
| 283 | if (ap->flags & XFSMNT_DIRSYNC) | ||
| 284 | mp->m_flags |= XFS_MOUNT_DIRSYNC; | ||
| 285 | if (ap->flags & XFSMNT_ATTR2) | ||
| 286 | mp->m_flags |= XFS_MOUNT_ATTR2; | ||
| 287 | |||
| 288 | if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) | ||
| 289 | mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; | ||
| 290 | |||
| 291 | /* | ||
| 292 | * no recovery flag requires a read-only mount | ||
| 293 | */ | ||
| 294 | if (ap->flags & XFSMNT_NORECOVERY) { | ||
| 295 | if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { | ||
| 296 | cmn_err(CE_WARN, | ||
| 297 | "XFS: tried to mount a FS read-write without recovery!"); | ||
| 298 | return XFS_ERROR(EINVAL); | ||
| 299 | } | ||
| 300 | mp->m_flags |= XFS_MOUNT_NORECOVERY; | ||
| 301 | } | ||
| 302 | |||
| 303 | if (ap->flags & XFSMNT_NOUUID) | ||
| 304 | mp->m_flags |= XFS_MOUNT_NOUUID; | ||
| 305 | if (ap->flags & XFSMNT_BARRIER) | ||
| 306 | mp->m_flags |= XFS_MOUNT_BARRIER; | ||
| 307 | else | ||
| 308 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | ||
| 309 | |||
| 310 | if (ap->flags2 & XFSMNT2_FILESTREAMS) | ||
| 311 | mp->m_flags |= XFS_MOUNT_FILESTREAMS; | ||
| 312 | |||
| 313 | if (ap->flags & XFSMNT_DMAPI) | ||
| 314 | mp->m_flags |= XFS_MOUNT_DMAPI; | ||
| 315 | return 0; | ||
| 316 | } | ||
| 317 | |||
| 318 | /* | ||
| 319 | * This function fills in xfs_mount_t fields based on mount args. | ||
| 320 | * Note: the superblock _has_ now been read in. | ||
| 321 | */ | ||
| 322 | STATIC int | ||
| 323 | xfs_finish_flags( | ||
| 324 | struct xfs_mount_args *ap, | ||
| 325 | struct xfs_mount *mp) | ||
| 326 | { | ||
| 327 | int ronly = (mp->m_flags & XFS_MOUNT_RDONLY); | ||
| 328 | |||
| 329 | /* Fail a mount where the logbuf is smaller then the log stripe */ | ||
| 330 | if (xfs_sb_version_haslogv2(&mp->m_sb)) { | ||
| 331 | if ((ap->logbufsize <= 0) && | ||
| 332 | (mp->m_sb.sb_logsunit > XLOG_BIG_RECORD_BSIZE)) { | ||
| 333 | mp->m_logbsize = mp->m_sb.sb_logsunit; | ||
| 334 | } else if (ap->logbufsize > 0 && | ||
| 335 | ap->logbufsize < mp->m_sb.sb_logsunit) { | ||
| 336 | cmn_err(CE_WARN, | ||
| 337 | "XFS: logbuf size must be greater than or equal to log stripe size"); | ||
| 338 | return XFS_ERROR(EINVAL); | ||
| 339 | } | ||
| 340 | } else { | ||
| 341 | /* Fail a mount if the logbuf is larger than 32K */ | ||
| 342 | if (ap->logbufsize > XLOG_BIG_RECORD_BSIZE) { | ||
| 343 | cmn_err(CE_WARN, | ||
| 344 | "XFS: logbuf size for version 1 logs must be 16K or 32K"); | ||
| 345 | return XFS_ERROR(EINVAL); | ||
| 346 | } | ||
| 347 | } | ||
| 348 | |||
| 349 | if (xfs_sb_version_hasattr2(&mp->m_sb)) | ||
| 350 | mp->m_flags |= XFS_MOUNT_ATTR2; | ||
| 351 | |||
| 352 | /* | ||
| 353 | * prohibit r/w mounts of read-only filesystems | ||
| 354 | */ | ||
| 355 | if ((mp->m_sb.sb_flags & XFS_SBF_READONLY) && !ronly) { | ||
| 356 | cmn_err(CE_WARN, | ||
| 357 | "XFS: cannot mount a read-only filesystem as read-write"); | ||
| 358 | return XFS_ERROR(EROFS); | ||
| 359 | } | ||
| 360 | |||
| 361 | /* | ||
| 362 | * check for shared mount. | ||
| 363 | */ | ||
| 364 | if (ap->flags & XFSMNT_SHARED) { | ||
| 365 | if (!xfs_sb_version_hasshared(&mp->m_sb)) | ||
| 366 | return XFS_ERROR(EINVAL); | ||
| 367 | |||
| 368 | /* | ||
| 369 | * For IRIX 6.5, shared mounts must have the shared | ||
| 370 | * version bit set, have the persistent readonly | ||
| 371 | * field set, must be version 0 and can only be mounted | ||
| 372 | * read-only. | ||
| 373 | */ | ||
| 374 | if (!ronly || !(mp->m_sb.sb_flags & XFS_SBF_READONLY) || | ||
| 375 | (mp->m_sb.sb_shared_vn != 0)) | ||
| 376 | return XFS_ERROR(EINVAL); | ||
| 377 | |||
| 378 | mp->m_flags |= XFS_MOUNT_SHARED; | ||
| 379 | |||
| 380 | /* | ||
| 381 | * Shared XFS V0 can't deal with DMI. Return EINVAL. | ||
| 382 | */ | ||
| 383 | if (mp->m_sb.sb_shared_vn == 0 && (ap->flags & XFSMNT_DMAPI)) | ||
| 384 | return XFS_ERROR(EINVAL); | ||
| 385 | } | ||
| 386 | |||
| 387 | if (ap->flags & XFSMNT_UQUOTA) { | ||
| 388 | mp->m_qflags |= (XFS_UQUOTA_ACCT | XFS_UQUOTA_ACTIVE); | ||
| 389 | if (ap->flags & XFSMNT_UQUOTAENF) | ||
| 390 | mp->m_qflags |= XFS_UQUOTA_ENFD; | ||
| 391 | } | ||
| 392 | |||
| 393 | if (ap->flags & XFSMNT_GQUOTA) { | ||
| 394 | mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE); | ||
| 395 | if (ap->flags & XFSMNT_GQUOTAENF) | ||
| 396 | mp->m_qflags |= XFS_OQUOTA_ENFD; | ||
| 397 | } else if (ap->flags & XFSMNT_PQUOTA) { | ||
| 398 | mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE); | ||
| 399 | if (ap->flags & XFSMNT_PQUOTAENF) | ||
| 400 | mp->m_qflags |= XFS_OQUOTA_ENFD; | ||
| 401 | } | ||
| 402 | |||
| 403 | return 0; | ||
| 404 | } | ||
| 405 | |||
| 406 | /* | ||
| 407 | * xfs_mount | ||
| 408 | * | ||
| 409 | * The file system configurations are: | ||
| 410 | * (1) device (partition) with data and internal log | ||
| 411 | * (2) logical volume with data and log subvolumes. | ||
| 412 | * (3) logical volume with data, log, and realtime subvolumes. | ||
| 413 | * | ||
| 414 | * We only have to handle opening the log and realtime volumes here if | ||
| 415 | * they are present. The data subvolume has already been opened by | ||
| 416 | * get_sb_bdev() and is stored in vfsp->vfs_super->s_bdev. | ||
| 417 | */ | ||
| 418 | int | ||
| 419 | xfs_mount( | ||
| 420 | struct xfs_mount *mp, | ||
| 421 | struct xfs_mount_args *args, | ||
| 422 | cred_t *credp) | ||
| 423 | { | ||
| 424 | struct block_device *ddev, *logdev, *rtdev; | ||
| 425 | int flags = 0, error; | ||
| 426 | |||
| 427 | ddev = mp->m_super->s_bdev; | ||
| 428 | logdev = rtdev = NULL; | ||
| 429 | |||
| 430 | error = xfs_dmops_get(mp, args); | ||
| 431 | if (error) | ||
| 432 | return error; | ||
| 433 | error = xfs_qmops_get(mp, args); | ||
| 434 | if (error) | ||
| 435 | return error; | ||
| 436 | |||
| 437 | if (args->flags & XFSMNT_QUIET) | ||
| 438 | flags |= XFS_MFSI_QUIET; | ||
| 439 | |||
| 440 | /* | ||
| 441 | * Open real time and log devices - order is important. | ||
| 442 | */ | ||
| 443 | if (args->logname[0]) { | ||
| 444 | error = xfs_blkdev_get(mp, args->logname, &logdev); | ||
| 445 | if (error) | ||
| 446 | return error; | ||
| 447 | } | ||
| 448 | if (args->rtname[0]) { | ||
| 449 | error = xfs_blkdev_get(mp, args->rtname, &rtdev); | ||
| 450 | if (error) { | ||
| 451 | xfs_blkdev_put(logdev); | ||
| 452 | return error; | ||
| 453 | } | ||
| 454 | |||
| 455 | if (rtdev == ddev || rtdev == logdev) { | ||
| 456 | cmn_err(CE_WARN, | ||
| 457 | "XFS: Cannot mount filesystem with identical rtdev and ddev/logdev."); | ||
| 458 | xfs_blkdev_put(logdev); | ||
| 459 | xfs_blkdev_put(rtdev); | ||
| 460 | return EINVAL; | ||
| 461 | } | ||
| 462 | } | ||
| 463 | |||
| 464 | /* | ||
| 465 | * Setup xfs_mount buffer target pointers | ||
| 466 | */ | ||
| 467 | error = ENOMEM; | ||
| 468 | mp->m_ddev_targp = xfs_alloc_buftarg(ddev, 0); | ||
| 469 | if (!mp->m_ddev_targp) { | ||
| 470 | xfs_blkdev_put(logdev); | ||
| 471 | xfs_blkdev_put(rtdev); | ||
| 472 | return error; | ||
| 473 | } | ||
| 474 | if (rtdev) { | ||
| 475 | mp->m_rtdev_targp = xfs_alloc_buftarg(rtdev, 1); | ||
| 476 | if (!mp->m_rtdev_targp) { | ||
| 477 | xfs_blkdev_put(logdev); | ||
| 478 | xfs_blkdev_put(rtdev); | ||
| 479 | goto error0; | ||
| 480 | } | ||
| 481 | } | ||
| 482 | mp->m_logdev_targp = (logdev && logdev != ddev) ? | ||
| 483 | xfs_alloc_buftarg(logdev, 1) : mp->m_ddev_targp; | ||
| 484 | if (!mp->m_logdev_targp) { | ||
| 485 | xfs_blkdev_put(logdev); | ||
| 486 | xfs_blkdev_put(rtdev); | ||
| 487 | goto error0; | ||
| 488 | } | ||
| 489 | |||
| 490 | /* | ||
| 491 | * Setup flags based on mount(2) options and then the superblock | ||
| 492 | */ | ||
| 493 | error = xfs_start_flags(args, mp); | ||
| 494 | if (error) | ||
| 495 | goto error1; | ||
| 496 | error = xfs_readsb(mp, flags); | ||
| 497 | if (error) | ||
| 498 | goto error1; | ||
| 499 | error = xfs_finish_flags(args, mp); | ||
| 500 | if (error) | ||
| 501 | goto error2; | ||
| 502 | |||
| 503 | /* | ||
| 504 | * Setup xfs_mount buffer target pointers based on superblock | ||
| 505 | */ | ||
| 506 | error = xfs_setsize_buftarg(mp->m_ddev_targp, mp->m_sb.sb_blocksize, | ||
| 507 | mp->m_sb.sb_sectsize); | ||
| 508 | if (!error && logdev && logdev != ddev) { | ||
| 509 | unsigned int log_sector_size = BBSIZE; | ||
| 510 | |||
| 511 | if (xfs_sb_version_hassector(&mp->m_sb)) | ||
| 512 | log_sector_size = mp->m_sb.sb_logsectsize; | ||
| 513 | error = xfs_setsize_buftarg(mp->m_logdev_targp, | ||
| 514 | mp->m_sb.sb_blocksize, | ||
| 515 | log_sector_size); | ||
| 516 | } | ||
| 517 | if (!error && rtdev) | ||
| 518 | error = xfs_setsize_buftarg(mp->m_rtdev_targp, | ||
| 519 | mp->m_sb.sb_blocksize, | ||
| 520 | mp->m_sb.sb_sectsize); | ||
| 521 | if (error) | ||
| 522 | goto error2; | ||
| 523 | |||
| 524 | if (mp->m_flags & XFS_MOUNT_BARRIER) | ||
| 525 | xfs_mountfs_check_barriers(mp); | ||
| 526 | |||
| 527 | if ((error = xfs_filestream_mount(mp))) | ||
| 528 | goto error2; | ||
| 529 | |||
| 530 | error = xfs_mountfs(mp, flags); | ||
| 531 | if (error) | ||
| 532 | goto error2; | ||
| 533 | |||
| 534 | XFS_SEND_MOUNT(mp, DM_RIGHT_NULL, args->mtpt, args->fsname); | ||
| 535 | |||
| 536 | return 0; | ||
| 537 | |||
| 538 | error2: | ||
| 539 | if (mp->m_sb_bp) | ||
| 540 | xfs_freesb(mp); | ||
| 541 | error1: | ||
| 542 | xfs_binval(mp->m_ddev_targp); | ||
| 543 | if (logdev && logdev != ddev) | ||
| 544 | xfs_binval(mp->m_logdev_targp); | ||
| 545 | if (rtdev) | ||
| 546 | xfs_binval(mp->m_rtdev_targp); | ||
| 547 | error0: | ||
| 548 | xfs_unmountfs_close(mp, credp); | ||
| 549 | xfs_qmops_put(mp); | ||
| 550 | xfs_dmops_put(mp); | ||
| 551 | return error; | ||
| 552 | } | ||
| 553 | |||
| 554 | int | ||
| 555 | xfs_unmount( | ||
| 556 | xfs_mount_t *mp, | ||
| 557 | int flags, | ||
| 558 | cred_t *credp) | ||
| 559 | { | ||
| 560 | xfs_inode_t *rip; | ||
| 561 | bhv_vnode_t *rvp; | ||
| 562 | int unmount_event_wanted = 0; | ||
| 563 | int unmount_event_flags = 0; | ||
| 564 | int xfs_unmountfs_needed = 0; | ||
| 565 | int error; | ||
| 566 | |||
| 567 | rip = mp->m_rootip; | ||
| 568 | rvp = XFS_ITOV(rip); | ||
| 569 | |||
| 570 | #ifdef HAVE_DMAPI | ||
| 571 | if (mp->m_flags & XFS_MOUNT_DMAPI) { | ||
| 572 | error = XFS_SEND_PREUNMOUNT(mp, | ||
| 573 | rip, DM_RIGHT_NULL, rip, DM_RIGHT_NULL, | ||
| 574 | NULL, NULL, 0, 0, | ||
| 575 | (mp->m_dmevmask & (1<<DM_EVENT_PREUNMOUNT))? | ||
| 576 | 0:DM_FLAGS_UNWANTED); | ||
| 577 | if (error) | ||
| 578 | return XFS_ERROR(error); | ||
| 579 | unmount_event_wanted = 1; | ||
| 580 | unmount_event_flags = (mp->m_dmevmask & (1<<DM_EVENT_UNMOUNT))? | ||
| 581 | 0 : DM_FLAGS_UNWANTED; | ||
| 582 | } | ||
| 583 | #endif | ||
| 584 | |||
| 585 | /* | ||
| 586 | * Blow away any referenced inode in the filestreams cache. | ||
| 587 | * This can and will cause log traffic as inodes go inactive | ||
| 588 | * here. | ||
| 589 | */ | ||
| 590 | xfs_filestream_unmount(mp); | ||
| 591 | |||
| 592 | XFS_bflush(mp->m_ddev_targp); | ||
| 593 | error = xfs_unmount_flush(mp, 0); | ||
| 594 | if (error) | ||
| 595 | goto out; | ||
| 596 | |||
| 597 | ASSERT(vn_count(rvp) == 1); | ||
| 598 | |||
| 599 | /* | ||
| 600 | * Drop the reference count | ||
| 601 | */ | ||
| 602 | IRELE(rip); | ||
| 603 | |||
| 604 | /* | ||
| 605 | * If we're forcing a shutdown, typically because of a media error, | ||
| 606 | * we want to make sure we invalidate dirty pages that belong to | ||
| 607 | * referenced vnodes as well. | ||
| 608 | */ | ||
| 609 | if (XFS_FORCED_SHUTDOWN(mp)) { | ||
| 610 | error = xfs_sync(mp, SYNC_WAIT | SYNC_CLOSE); | ||
| 611 | ASSERT(error != EFSCORRUPTED); | ||
| 612 | } | ||
| 613 | xfs_unmountfs_needed = 1; | ||
| 614 | |||
| 615 | out: | ||
| 616 | /* Send DMAPI event, if required. | ||
| 617 | * Then do xfs_unmountfs() if needed. | ||
| 618 | * Then return error (or zero). | ||
| 619 | */ | ||
| 620 | if (unmount_event_wanted) { | ||
| 621 | /* Note: mp structure must still exist for | ||
| 622 | * XFS_SEND_UNMOUNT() call. | ||
| 623 | */ | ||
| 624 | XFS_SEND_UNMOUNT(mp, error == 0 ? rip : NULL, | ||
| 625 | DM_RIGHT_NULL, 0, error, unmount_event_flags); | ||
| 626 | } | ||
| 627 | if (xfs_unmountfs_needed) { | ||
| 628 | /* | ||
| 629 | * Call common unmount function to flush to disk | ||
| 630 | * and free the super block buffer & mount structures. | ||
| 631 | */ | ||
| 632 | xfs_unmountfs(mp, credp); | ||
| 633 | xfs_qmops_put(mp); | ||
| 634 | xfs_dmops_put(mp); | ||
| 635 | kmem_free(mp, sizeof(xfs_mount_t)); | ||
| 636 | } | ||
| 637 | |||
| 638 | return XFS_ERROR(error); | ||
| 639 | } | ||
| 640 | |||
| 641 | STATIC void | 61 | STATIC void |
| 642 | xfs_quiesce_fs( | 62 | xfs_quiesce_fs( |
| 643 | xfs_mount_t *mp) | 63 | xfs_mount_t *mp) |
| @@ -694,30 +114,6 @@ xfs_attr_quiesce( | |||
| 694 | xfs_unmountfs_writesb(mp); | 114 | xfs_unmountfs_writesb(mp); |
| 695 | } | 115 | } |
| 696 | 116 | ||
| 697 | int | ||
| 698 | xfs_mntupdate( | ||
| 699 | struct xfs_mount *mp, | ||
| 700 | int *flags, | ||
| 701 | struct xfs_mount_args *args) | ||
| 702 | { | ||
| 703 | if (!(*flags & MS_RDONLY)) { /* rw/ro -> rw */ | ||
| 704 | if (mp->m_flags & XFS_MOUNT_RDONLY) | ||
| 705 | mp->m_flags &= ~XFS_MOUNT_RDONLY; | ||
| 706 | if (args->flags & XFSMNT_BARRIER) { | ||
| 707 | mp->m_flags |= XFS_MOUNT_BARRIER; | ||
| 708 | xfs_mountfs_check_barriers(mp); | ||
| 709 | } else { | ||
| 710 | mp->m_flags &= ~XFS_MOUNT_BARRIER; | ||
| 711 | } | ||
| 712 | } else if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { /* rw -> ro */ | ||
| 713 | xfs_filestream_flush(mp); | ||
| 714 | xfs_sync(mp, SYNC_DATA_QUIESCE); | ||
| 715 | xfs_attr_quiesce(mp); | ||
| 716 | mp->m_flags |= XFS_MOUNT_RDONLY; | ||
| 717 | } | ||
| 718 | return 0; | ||
| 719 | } | ||
| 720 | |||
| 721 | /* | 117 | /* |
| 722 | * xfs_unmount_flush implements a set of flush operation on special | 118 | * xfs_unmount_flush implements a set of flush operation on special |
| 723 | * inodes, which are needed as a separate set of operations so that | 119 | * inodes, which are needed as a separate set of operations so that |
| @@ -1048,7 +444,7 @@ xfs_sync_inodes( | |||
| 1048 | 444 | ||
| 1049 | if (XFS_FORCED_SHUTDOWN(mp) && !(flags & SYNC_CLOSE)) { | 445 | if (XFS_FORCED_SHUTDOWN(mp) && !(flags & SYNC_CLOSE)) { |
| 1050 | XFS_MOUNT_IUNLOCK(mp); | 446 | XFS_MOUNT_IUNLOCK(mp); |
| 1051 | kmem_free(ipointer, sizeof(xfs_iptr_t)); | 447 | kmem_free(ipointer); |
| 1052 | return 0; | 448 | return 0; |
| 1053 | } | 449 | } |
| 1054 | 450 | ||
| @@ -1194,7 +590,7 @@ xfs_sync_inodes( | |||
| 1194 | } | 590 | } |
| 1195 | XFS_MOUNT_IUNLOCK(mp); | 591 | XFS_MOUNT_IUNLOCK(mp); |
| 1196 | ASSERT(ipointer_in == B_FALSE); | 592 | ASSERT(ipointer_in == B_FALSE); |
| 1197 | kmem_free(ipointer, sizeof(xfs_iptr_t)); | 593 | kmem_free(ipointer); |
| 1198 | return XFS_ERROR(error); | 594 | return XFS_ERROR(error); |
| 1199 | } | 595 | } |
| 1200 | 596 | ||
| @@ -1224,7 +620,7 @@ xfs_sync_inodes( | |||
| 1224 | 620 | ||
| 1225 | ASSERT(ipointer_in == B_FALSE); | 621 | ASSERT(ipointer_in == B_FALSE); |
| 1226 | 622 | ||
| 1227 | kmem_free(ipointer, sizeof(xfs_iptr_t)); | 623 | kmem_free(ipointer); |
| 1228 | return XFS_ERROR(last_error); | 624 | return XFS_ERROR(last_error); |
| 1229 | } | 625 | } |
| 1230 | 626 | ||
