1 /* 2 * linux/fs/minix/inode.c 3 * 4 * Copyright (C) 1991, 1992 Linus Torvalds 5 * 6 * Copyright (C) 1996 Gertjan van Wingerde 7 * Minix V2 fs support. 8 * 9 * Modified for 680x0 by Andreas Schwab 10 * Updated to filesystem version 3 by Daniel Aragones 11 */ 12 13 #include <linux/module.h> 14 #include "minix.h" 15 #include <linux/buffer_head.h> 16 #include <linux/slab.h> 17 #include <linux/init.h> 18 #include <linux/highuid.h> 19 #include <linux/vfs.h> 20 21 static int minix_write_inode(struct inode * inode, int wait); 22 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf); 23 static int minix_remount (struct super_block * sb, int * flags, char * data); 24 25 static void minix_delete_inode(struct inode *inode) 26 { 27 truncate_inode_pages(&inode->i_data, 0); 28 inode->i_size = 0; 29 minix_truncate(inode); 30 minix_free_inode(inode); 31 } 32 33 static void minix_put_super(struct super_block *sb) 34 { 35 int i; 36 struct minix_sb_info *sbi = minix_sb(sb); 37 38 if (!(sb->s_flags & MS_RDONLY)) { 39 if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */ 40 sbi->s_ms->s_state = sbi->s_mount_state; 41 mark_buffer_dirty(sbi->s_sbh); 42 } 43 for (i = 0; i < sbi->s_imap_blocks; i++) 44 brelse(sbi->s_imap[i]); 45 for (i = 0; i < sbi->s_zmap_blocks; i++) 46 brelse(sbi->s_zmap[i]); 47 brelse (sbi->s_sbh); 48 kfree(sbi->s_imap); 49 sb->s_fs_info = NULL; 50 kfree(sbi); 51 } 52 53 static struct kmem_cache * minix_inode_cachep; 54 55 static struct inode *minix_alloc_inode(struct super_block *sb) 56 { 57 struct minix_inode_info *ei; 58 ei = (struct minix_inode_info *)kmem_cache_alloc(minix_inode_cachep, GFP_KERNEL); 59 if (!ei) 60 return NULL; 61 return &ei->vfs_inode; 62 } 63 64 static void minix_destroy_inode(struct inode *inode) 65 { 66 kmem_cache_free(minix_inode_cachep, minix_i(inode)); 67 } 68 69 static void init_once(void *foo) 70 { 71 struct minix_inode_info *ei = (struct minix_inode_info *) foo; 72 73 inode_init_once(&ei->vfs_inode); 74 } 75 76 static int init_inodecache(void) 77 { 78 minix_inode_cachep = kmem_cache_create("minix_inode_cache", 79 sizeof(struct minix_inode_info), 80 0, (SLAB_RECLAIM_ACCOUNT| 81 SLAB_MEM_SPREAD), 82 init_once); 83 if (minix_inode_cachep == NULL) 84 return -ENOMEM; 85 return 0; 86 } 87 88 static void destroy_inodecache(void) 89 { 90 kmem_cache_destroy(minix_inode_cachep); 91 } 92 93 static const struct super_operations minix_sops = { 94 .alloc_inode = minix_alloc_inode, 95 .destroy_inode = minix_destroy_inode, 96 .write_inode = minix_write_inode, 97 .delete_inode = minix_delete_inode, 98 .put_super = minix_put_super, 99 .statfs = minix_statfs, 100 .remount_fs = minix_remount, 101 }; 102 103 static int minix_remount (struct super_block * sb, int * flags, char * data) 104 { 105 struct minix_sb_info * sbi = minix_sb(sb); 106 struct minix_super_block * ms; 107 108 ms = sbi->s_ms; 109 if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) 110 return 0; 111 if (*flags & MS_RDONLY) { 112 if (ms->s_state & MINIX_VALID_FS || 113 !(sbi->s_mount_state & MINIX_VALID_FS)) 114 return 0; 115 /* Mounting a rw partition read-only. */ 116 if (sbi->s_version != MINIX_V3) 117 ms->s_state = sbi->s_mount_state; 118 mark_buffer_dirty(sbi->s_sbh); 119 } else { 120 /* Mount a partition which is read-only, read-write. */ 121 if (sbi->s_version != MINIX_V3) { 122 sbi->s_mount_state = ms->s_state; 123 ms->s_state &= ~MINIX_VALID_FS; 124 } else { 125 sbi->s_mount_state = MINIX_VALID_FS; 126 } 127 mark_buffer_dirty(sbi->s_sbh); 128 129 if (!(sbi->s_mount_state & MINIX_VALID_FS)) 130 printk("MINIX-fs warning: remounting unchecked fs, " 131 "running fsck is recommended\n"); 132 else if ((sbi->s_mount_state & MINIX_ERROR_FS)) 133 printk("MINIX-fs warning: remounting fs with errors, " 134 "running fsck is recommended\n"); 135 } 136 return 0; 137 } 138 139 static int minix_fill_super(struct super_block *s, void *data, int silent) 140 { 141 struct buffer_head *bh; 142 struct buffer_head **map; 143 struct minix_super_block *ms; 144 struct minix3_super_block *m3s = NULL; 145 unsigned long i, block; 146 struct inode *root_inode; 147 struct minix_sb_info *sbi; 148 int ret = -EINVAL; 149 150 sbi = kzalloc(sizeof(struct minix_sb_info), GFP_KERNEL); 151 if (!sbi) 152 return -ENOMEM; 153 s->s_fs_info = sbi; 154 155 BUILD_BUG_ON(32 != sizeof (struct minix_inode)); 156 BUILD_BUG_ON(64 != sizeof(struct minix2_inode)); 157 158 if (!sb_set_blocksize(s, BLOCK_SIZE)) 159 goto out_bad_hblock; 160 161 if (!(bh = sb_bread(s, 1))) 162 goto out_bad_sb; 163 164 ms = (struct minix_super_block *) bh->b_data; 165 sbi->s_ms = ms; 166 sbi->s_sbh = bh; 167 sbi->s_mount_state = ms->s_state; 168 sbi->s_ninodes = ms->s_ninodes; 169 sbi->s_nzones = ms->s_nzones; 170 sbi->s_imap_blocks = ms->s_imap_blocks; 171 sbi->s_zmap_blocks = ms->s_zmap_blocks; 172 sbi->s_firstdatazone = ms->s_firstdatazone; 173 sbi->s_log_zone_size = ms->s_log_zone_size; 174 sbi->s_max_size = ms->s_max_size; 175 s->s_magic = ms->s_magic; 176 if (s->s_magic == MINIX_SUPER_MAGIC) { 177 sbi->s_version = MINIX_V1; 178 sbi->s_dirsize = 16; 179 sbi->s_namelen = 14; 180 sbi->s_link_max = MINIX_LINK_MAX; 181 } else if (s->s_magic == MINIX_SUPER_MAGIC2) { 182 sbi->s_version = MINIX_V1; 183 sbi->s_dirsize = 32; 184 sbi->s_namelen = 30; 185 sbi->s_link_max = MINIX_LINK_MAX; 186 } else if (s->s_magic == MINIX2_SUPER_MAGIC) { 187 sbi->s_version = MINIX_V2; 188 sbi->s_nzones = ms->s_zones; 189 sbi->s_dirsize = 16; 190 sbi->s_namelen = 14; 191 sbi->s_link_max = MINIX2_LINK_MAX; 192 } else if (s->s_magic == MINIX2_SUPER_MAGIC2) { 193 sbi->s_version = MINIX_V2; 194 sbi->s_nzones = ms->s_zones; 195 sbi->s_dirsize = 32; 196 sbi->s_namelen = 30; 197 sbi->s_link_max = MINIX2_LINK_MAX; 198 } else if ( *(__u16 *)(bh->b_data + 24) == MINIX3_SUPER_MAGIC) { 199 m3s = (struct minix3_super_block *) bh->b_data; 200 s->s_magic = m3s->s_magic; 201 sbi->s_imap_blocks = m3s->s_imap_blocks; 202 sbi->s_zmap_blocks = m3s->s_zmap_blocks; 203 sbi->s_firstdatazone = m3s->s_firstdatazone; 204 sbi->s_log_zone_size = m3s->s_log_zone_size; 205 sbi->s_max_size = m3s->s_max_size; 206 sbi->s_ninodes = m3s->s_ninodes; 207 sbi->s_nzones = m3s->s_zones; 208 sbi->s_dirsize = 64; 209 sbi->s_namelen = 60; 210 sbi->s_version = MINIX_V3; 211 sbi->s_link_max = MINIX2_LINK_MAX; 212 sbi->s_mount_state = MINIX_VALID_FS; 213 sb_set_blocksize(s, m3s->s_blocksize); 214 } else 215 goto out_no_fs; 216 217 /* 218 * Allocate the buffer map to keep the superblock small. 219 */ 220 if (sbi->s_imap_blocks == 0 || sbi->s_zmap_blocks == 0) 221 goto out_illegal_sb; 222 i = (sbi->s_imap_blocks + sbi->s_zmap_blocks) * sizeof(bh); 223 map = kzalloc(i, GFP_KERNEL); 224 if (!map) 225 goto out_no_map; 226 sbi->s_imap = &map[0]; 227 sbi->s_zmap = &map[sbi->s_imap_blocks]; 228 229 block=2; 230 for (i=0 ; i < sbi->s_imap_blocks ; i++) { 231 if (!(sbi->s_imap[i]=sb_bread(s, block))) 232 goto out_no_bitmap; 233 block++; 234 } 235 for (i=0 ; i < sbi->s_zmap_blocks ; i++) { 236 if (!(sbi->s_zmap[i]=sb_bread(s, block))) 237 goto out_no_bitmap; 238 block++; 239 } 240 241 minix_set_bit(0,sbi->s_imap[0]->b_data); 242 minix_set_bit(0,sbi->s_zmap[0]->b_data); 243 244 /* set up enough so that it can read an inode */ 245 s->s_op = &minix_sops; 246 root_inode = minix_iget(s, MINIX_ROOT_INO); 247 if (IS_ERR(root_inode)) { 248 ret = PTR_ERR(root_inode); 249 goto out_no_root; 250 } 251 252 ret = -ENOMEM; 253 s->s_root = d_alloc_root(root_inode); 254 if (!s->s_root) 255 goto out_iput; 256 257 if (!(s->s_flags & MS_RDONLY)) { 258 if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */ 259 ms->s_state &= ~MINIX_VALID_FS; 260 mark_buffer_dirty(bh); 261 } 262 if (!(sbi->s_mount_state & MINIX_VALID_FS)) 263 printk("MINIX-fs: mounting unchecked file system, " 264 "running fsck is recommended\n"); 265 else if (sbi->s_mount_state & MINIX_ERROR_FS) 266 printk("MINIX-fs: mounting file system with errors, " 267 "running fsck is recommended\n"); 268 return 0; 269 270 out_iput: 271 iput(root_inode); 272 goto out_freemap; 273 274 out_no_root: 275 if (!silent) 276 printk("MINIX-fs: get root inode failed\n"); 277 goto out_freemap; 278 279 out_no_bitmap: 280 printk("MINIX-fs: bad superblock or unable to read bitmaps\n"); 281 out_freemap: 282 for (i = 0; i < sbi->s_imap_blocks; i++) 283 brelse(sbi->s_imap[i]); 284 for (i = 0; i < sbi->s_zmap_blocks; i++) 285 brelse(sbi->s_zmap[i]); 286 kfree(sbi->s_imap); 287 goto out_release; 288 289 out_no_map: 290 ret = -ENOMEM; 291 if (!silent) 292 printk("MINIX-fs: can't allocate map\n"); 293 goto out_release; 294 295 out_illegal_sb: 296 if (!silent) 297 printk("MINIX-fs: bad superblock\n"); 298 goto out_release; 299 300 out_no_fs: 301 if (!silent) 302 printk("VFS: Can't find a Minix filesystem V1 | V2 | V3 " 303 "on device %s.\n", s->s_id); 304 out_release: 305 brelse(bh); 306 goto out; 307 308 out_bad_hblock: 309 printk("MINIX-fs: blocksize too small for device\n"); 310 goto out; 311 312 out_bad_sb: 313 printk("MINIX-fs: unable to read superblock\n"); 314 out: 315 s->s_fs_info = NULL; 316 kfree(sbi); 317 return ret; 318 } 319 320 static int minix_statfs(struct dentry *dentry, struct kstatfs *buf) 321 { 322 struct super_block *sb = dentry->d_sb; 323 struct minix_sb_info *sbi = minix_sb(sb); 324 u64 id = huge_encode_dev(sb->s_bdev->bd_dev); 325 buf->f_type = sb->s_magic; 326 buf->f_bsize = sb->s_blocksize; 327 buf->f_blocks = (sbi->s_nzones - sbi->s_firstdatazone) << sbi->s_log_zone_size; 328 buf->f_bfree = minix_count_free_blocks(sbi); 329 buf->f_bavail = buf->f_bfree; 330 buf->f_files = sbi->s_ninodes; 331 buf->f_ffree = minix_count_free_inodes(sbi); 332 buf->f_namelen = sbi->s_namelen; 333 buf->f_fsid.val[0] = (u32)id; 334 buf->f_fsid.val[1] = (u32)(id >> 32); 335 336 return 0; 337 } 338 339 static int minix_get_block(struct inode *inode, sector_t block, 340 struct buffer_head *bh_result, int create) 341 { 342 if (INODE_VERSION(inode) == MINIX_V1) 343 return V1_minix_get_block(inode, block, bh_result, create); 344 else 345 return V2_minix_get_block(inode, block, bh_result, create); 346 } 347 348 static int minix_writepage(struct page *page, struct writeback_control *wbc) 349 { 350 return block_write_full_page(page, minix_get_block, wbc); 351 } 352 353 static int minix_readpage(struct file *file, struct page *page) 354 { 355 return block_read_full_page(page,minix_get_block); 356 } 357 358 int __minix_write_begin(struct file *file, struct address_space *mapping, 359 loff_t pos, unsigned len, unsigned flags, 360 struct page **pagep, void **fsdata) 361 { 362 return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata, 363 minix_get_block); 364 } 365 366 static int minix_write_begin(struct file *file, struct address_space *mapping, 367 loff_t pos, unsigned len, unsigned flags, 368 struct page **pagep, void **fsdata) 369 { 370 *pagep = NULL; 371 return __minix_write_begin(file, mapping, pos, len, flags, pagep, fsdata); 372 } 373 374 static sector_t minix_bmap(struct address_space *mapping, sector_t block) 375 { 376 return generic_block_bmap(mapping,block,minix_get_block); 377 } 378 379 static const struct address_space_operations minix_aops = { 380 .readpage = minix_readpage, 381 .writepage = minix_writepage, 382 .sync_page = block_sync_page, 383 .write_begin = minix_write_begin, 384 .write_end = generic_write_end, 385 .bmap = minix_bmap 386 }; 387 388 static const struct inode_operations minix_symlink_inode_operations = { 389 .readlink = generic_readlink, 390 .follow_link = page_follow_link_light, 391 .put_link = page_put_link, 392 .getattr = minix_getattr, 393 }; 394 395 void minix_set_inode(struct inode *inode, dev_t rdev) 396 { 397 if (S_ISREG(inode->i_mode)) { 398 inode->i_op = &minix_file_inode_operations; 399 inode->i_fop = &minix_file_operations; 400 inode->i_mapping->a_ops = &minix_aops; 401 } else if (S_ISDIR(inode->i_mode)) { 402 inode->i_op = &minix_dir_inode_operations; 403 inode->i_fop = &minix_dir_operations; 404 inode->i_mapping->a_ops = &minix_aops; 405 } else if (S_ISLNK(inode->i_mode)) { 406 inode->i_op = &minix_symlink_inode_operations; 407 inode->i_mapping->a_ops = &minix_aops; 408 } else 409 init_special_inode(inode, inode->i_mode, rdev); 410 } 411 412 /* 413 * The minix V1 function to read an inode. 414 */ 415 static struct inode *V1_minix_iget(struct inode *inode) 416 { 417 struct buffer_head * bh; 418 struct minix_inode * raw_inode; 419 struct minix_inode_info *minix_inode = minix_i(inode); 420 int i; 421 422 raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh); 423 if (!raw_inode) { 424 iget_failed(inode); 425 return ERR_PTR(-EIO); 426 } 427 inode->i_mode = raw_inode->i_mode; 428 inode->i_uid = (uid_t)raw_inode->i_uid; 429 inode->i_gid = (gid_t)raw_inode->i_gid; 430 inode->i_nlink = raw_inode->i_nlinks; 431 inode->i_size = raw_inode->i_size; 432 inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = raw_inode->i_time; 433 inode->i_mtime.tv_nsec = 0; 434 inode->i_atime.tv_nsec = 0; 435 inode->i_ctime.tv_nsec = 0; 436 inode->i_blocks = 0; 437 for (i = 0; i < 9; i++) 438 minix_inode->u.i1_data[i] = raw_inode->i_zone[i]; 439 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); 440 brelse(bh); 441 unlock_new_inode(inode); 442 return inode; 443 } 444 445 /* 446 * The minix V2 function to read an inode. 447 */ 448 static struct inode *V2_minix_iget(struct inode *inode) 449 { 450 struct buffer_head * bh; 451 struct minix2_inode * raw_inode; 452 struct minix_inode_info *minix_inode = minix_i(inode); 453 int i; 454 455 raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh); 456 if (!raw_inode) { 457 iget_failed(inode); 458 return ERR_PTR(-EIO); 459 } 460 inode->i_mode = raw_inode->i_mode; 461 inode->i_uid = (uid_t)raw_inode->i_uid; 462 inode->i_gid = (gid_t)raw_inode->i_gid; 463 inode->i_nlink = raw_inode->i_nlinks; 464 inode->i_size = raw_inode->i_size; 465 inode->i_mtime.tv_sec = raw_inode->i_mtime; 466 inode->i_atime.tv_sec = raw_inode->i_atime; 467 inode->i_ctime.tv_sec = raw_inode->i_ctime; 468 inode->i_mtime.tv_nsec = 0; 469 inode->i_atime.tv_nsec = 0; 470 inode->i_ctime.tv_nsec = 0; 471 inode->i_blocks = 0; 472 for (i = 0; i < 10; i++) 473 minix_inode->u.i2_data[i] = raw_inode->i_zone[i]; 474 minix_set_inode(inode, old_decode_dev(raw_inode->i_zone[0])); 475 brelse(bh); 476 unlock_new_inode(inode); 477 return inode; 478 } 479 480 /* 481 * The global function to read an inode. 482 */ 483 struct inode *minix_iget(struct super_block *sb, unsigned long ino) 484 { 485 struct inode *inode; 486 487 inode = iget_locked(sb, ino); 488 if (!inode) 489 return ERR_PTR(-ENOMEM); 490 if (!(inode->i_state & I_NEW)) 491 return inode; 492 493 if (INODE_VERSION(inode) == MINIX_V1) 494 return V1_minix_iget(inode); 495 else 496 return V2_minix_iget(inode); 497 } 498 499 /* 500 * The minix V1 function to synchronize an inode. 501 */ 502 static struct buffer_head * V1_minix_update_inode(struct inode * inode) 503 { 504 struct buffer_head * bh; 505 struct minix_inode * raw_inode; 506 struct minix_inode_info *minix_inode = minix_i(inode); 507 int i; 508 509 raw_inode = minix_V1_raw_inode(inode->i_sb, inode->i_ino, &bh); 510 if (!raw_inode) 511 return NULL; 512 raw_inode->i_mode = inode->i_mode; 513 raw_inode->i_uid = fs_high2lowuid(inode->i_uid); 514 raw_inode->i_gid = fs_high2lowgid(inode->i_gid); 515 raw_inode->i_nlinks = inode->i_nlink; 516 raw_inode->i_size = inode->i_size; 517 raw_inode->i_time = inode->i_mtime.tv_sec; 518 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) 519 raw_inode->i_zone[0] = old_encode_dev(inode->i_rdev); 520 else for (i = 0; i < 9; i++) 521 raw_inode->i_zone[i] = minix_inode->u.i1_data[i]; 522 mark_buffer_dirty(bh); 523 return bh; 524 } 525 526 /* 527 * The minix V2 function to synchronize an inode. 528 */ 529 static struct buffer_head * V2_minix_update_inode(struct inode * inode) 530 { 531 struct buffer_head * bh; 532 struct minix2_inode * raw_inode; 533 struct minix_inode_info *minix_inode = minix_i(inode); 534 int i; 535 536 raw_inode = minix_V2_raw_inode(inode->i_sb, inode->i_ino, &bh); 537 if (!raw_inode) 538 return NULL; 539 raw_inode->i_mode = inode->i_mode; 540 raw_inode->i_uid = fs_high2lowuid(inode->i_uid); 541 raw_inode->i_gid = fs_high2lowgid(inode->i_gid); 542 raw_inode->i_nlinks = inode->i_nlink; 543 raw_inode->i_size = inode->i_size; 544 raw_inode->i_mtime = inode->i_mtime.tv_sec; 545 raw_inode->i_atime = inode->i_atime.tv_sec; 546 raw_inode->i_ctime = inode->i_ctime.tv_sec; 547 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) 548 raw_inode->i_zone[0] = old_encode_dev(inode->i_rdev); 549 else for (i = 0; i < 10; i++) 550 raw_inode->i_zone[i] = minix_inode->u.i2_data[i]; 551 mark_buffer_dirty(bh); 552 return bh; 553 } 554 555 static int minix_write_inode(struct inode *inode, int wait) 556 { 557 int err = 0; 558 struct buffer_head *bh; 559 560 if (INODE_VERSION(inode) == MINIX_V1) 561 bh = V1_minix_update_inode(inode); 562 else 563 bh = V2_minix_update_inode(inode); 564 if (!bh) 565 return -EIO; 566 if (wait && buffer_dirty(bh)) { 567 sync_dirty_buffer(bh); 568 if (buffer_req(bh) && !buffer_uptodate(bh)) { 569 printk("IO error syncing minix inode [%s:%08lx]\n", 570 inode->i_sb->s_id, inode->i_ino); 571 err = -EIO; 572 } 573 } 574 brelse (bh); 575 return err; 576 } 577 578 int minix_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) 579 { 580 struct inode *dir = dentry->d_parent->d_inode; 581 struct super_block *sb = dir->i_sb; 582 generic_fillattr(dentry->d_inode, stat); 583 if (INODE_VERSION(dentry->d_inode) == MINIX_V1) 584 stat->blocks = (BLOCK_SIZE / 512) * V1_minix_blocks(stat->size, sb); 585 else 586 stat->blocks = (sb->s_blocksize / 512) * V2_minix_blocks(stat->size, sb); 587 stat->blksize = sb->s_blocksize; 588 return 0; 589 } 590 591 /* 592 * The function that is called for file truncation. 593 */ 594 void minix_truncate(struct inode * inode) 595 { 596 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))) 597 return; 598 if (INODE_VERSION(inode) == MINIX_V1) 599 V1_minix_truncate(inode); 600 else 601 V2_minix_truncate(inode); 602 } 603 604 static int minix_get_sb(struct file_system_type *fs_type, 605 int flags, const char *dev_name, void *data, struct vfsmount *mnt) 606 { 607 return get_sb_bdev(fs_type, flags, dev_name, data, minix_fill_super, 608 mnt); 609 } 610 611 static struct file_system_type minix_fs_type = { 612 .owner = THIS_MODULE, 613 .name = "minix", 614 .get_sb = minix_get_sb, 615 .kill_sb = kill_block_super, 616 .fs_flags = FS_REQUIRES_DEV, 617 }; 618 619 static int __init init_minix_fs(void) 620 { 621 int err = init_inodecache(); 622 if (err) 623 goto out1; 624 err = register_filesystem(&minix_fs_type); 625 if (err) 626 goto out; 627 return 0; 628 out: 629 destroy_inodecache(); 630 out1: 631 return err; 632 } 633 634 static void __exit exit_minix_fs(void) 635 { 636 unregister_filesystem(&minix_fs_type); 637 destroy_inodecache(); 638 } 639 640 module_init(init_minix_fs) 641 module_exit(exit_minix_fs) 642 MODULE_LICENSE("GPL"); 643 644