5 * Super block routines for the OSTA-UDF(tm) filesystem.
8 * OSTA-UDF(tm) = Optical Storage Technology Association
9 * Universal Disk Format.
11 * This code is based on version 2.00 of the UDF specification,
12 * and revision 3 of the ECMA 167 standard [equivalent to ISO 13346].
13 * http://www.osta.org/
18 * This file is distributed under the terms of the GNU General Public
19 * License (GPL). Copies of the GPL can be obtained from:
20 * ftp://prep.ai.mit.edu/pub/gnu/GPL
21 * Each contributing author retains all rights to their own work.
23 * (C) 1998 Dave Boynton
24 * (C) 1998-2004 Ben Fennema
25 * (C) 2000 Stelias Computing Inc
29 * 09/24/98 dgb changed to allow compiling outside of kernel, and
30 * added some debugging.
31 * 10/01/98 dgb updated to allow (some) possibility of compiling w/2.0.34
32 * 10/16/98 attempting some multi-session support
33 * 10/17/98 added freespace count for "df"
34 * 11/11/98 gr added novrs option
35 * 11/26/98 dgb added fileset,anchor mount options
36 * 12/06/98 blf really hosed things royally. vat/sparing support. sequenced
37 * vol descs. rewrote option handling based on isofs
38 * 12/20/98 find the free space bitmap (if it exists)
43 #include <linux/blkdev.h>
44 #include <linux/slab.h>
45 #include <linux/kernel.h>
46 #include <linux/module.h>
47 #include <linux/parser.h>
48 #include <linux/stat.h>
49 #include <linux/cdrom.h>
50 #include <linux/nls.h>
51 #include <linux/smp_lock.h>
52 #include <linux/buffer_head.h>
53 #include <linux/vfs.h>
54 #include <linux/vmalloc.h>
55 #include <linux/errno.h>
56 #include <linux/mount.h>
57 #include <linux/seq_file.h>
58 #include <linux/bitmap.h>
59 #include <linux/crc-itu-t.h>
60 #include <asm/byteorder.h>
65 #include <linux/init.h>
66 #include <asm/uaccess.h>
68 #define VDS_POS_PRIMARY_VOL_DESC 0
69 #define VDS_POS_UNALLOC_SPACE_DESC 1
70 #define VDS_POS_LOGICAL_VOL_DESC 2
71 #define VDS_POS_PARTITION_DESC 3
72 #define VDS_POS_IMP_USE_VOL_DESC 4
73 #define VDS_POS_VOL_DESC_PTR 5
74 #define VDS_POS_TERMINATING_DESC 6
75 #define VDS_POS_LENGTH 7
77 #define UDF_DEFAULT_BLOCKSIZE 2048
79 static char error_buf[1024];
81 /* These are the "meat" - everything else is stuffing */
82 static int udf_fill_super(struct super_block *, void *, int);
83 static void udf_put_super(struct super_block *);
84 static int udf_sync_fs(struct super_block *, int);
85 static int udf_remount_fs(struct super_block *, int *, char *);
86 static void udf_load_logicalvolint(struct super_block *, struct kernel_extent_ad);
87 static int udf_find_fileset(struct super_block *, struct kernel_lb_addr *,
88 struct kernel_lb_addr *);
89 static void udf_load_fileset(struct super_block *, struct buffer_head *,
90 struct kernel_lb_addr *);
91 static void udf_open_lvid(struct super_block *);
92 static void udf_close_lvid(struct super_block *);
93 static unsigned int udf_count_free(struct super_block *);
94 static int udf_statfs(struct dentry *, struct kstatfs *);
95 static int udf_show_options(struct seq_file *, struct vfsmount *);
96 static void udf_error(struct super_block *sb, const char *function,
97 const char *fmt, ...);
99 struct logicalVolIntegrityDescImpUse *udf_sb_lvidiu(struct udf_sb_info *sbi)
101 struct logicalVolIntegrityDesc *lvid =
102 (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
103 __u32 number_of_partitions = le32_to_cpu(lvid->numOfPartitions);
104 __u32 offset = number_of_partitions * 2 *
105 sizeof(uint32_t)/sizeof(uint8_t);
106 return (struct logicalVolIntegrityDescImpUse *)&(lvid->impUse[offset]);
109 /* UDF filesystem type */
110 static int udf_get_sb(struct file_system_type *fs_type,
111 int flags, const char *dev_name, void *data,
112 struct vfsmount *mnt)
114 return get_sb_bdev(fs_type, flags, dev_name, data, udf_fill_super, mnt);
117 static struct file_system_type udf_fstype = {
118 .owner = THIS_MODULE,
120 .get_sb = udf_get_sb,
121 .kill_sb = kill_block_super,
122 .fs_flags = FS_REQUIRES_DEV,
125 static struct kmem_cache *udf_inode_cachep;
127 static struct inode *udf_alloc_inode(struct super_block *sb)
129 struct udf_inode_info *ei;
130 ei = kmem_cache_alloc(udf_inode_cachep, GFP_KERNEL);
135 ei->i_lenExtents = 0;
136 ei->i_next_alloc_block = 0;
137 ei->i_next_alloc_goal = 0;
140 return &ei->vfs_inode;
143 static void udf_destroy_inode(struct inode *inode)
145 kmem_cache_free(udf_inode_cachep, UDF_I(inode));
148 static void init_once(void *foo)
150 struct udf_inode_info *ei = (struct udf_inode_info *)foo;
152 ei->i_ext.i_data = NULL;
153 inode_init_once(&ei->vfs_inode);
156 static int init_inodecache(void)
158 udf_inode_cachep = kmem_cache_create("udf_inode_cache",
159 sizeof(struct udf_inode_info),
160 0, (SLAB_RECLAIM_ACCOUNT |
163 if (!udf_inode_cachep)
168 static void destroy_inodecache(void)
170 kmem_cache_destroy(udf_inode_cachep);
173 /* Superblock operations */
174 static const struct super_operations udf_sb_ops = {
175 .alloc_inode = udf_alloc_inode,
176 .destroy_inode = udf_destroy_inode,
177 .write_inode = udf_write_inode,
178 .delete_inode = udf_delete_inode,
179 .clear_inode = udf_clear_inode,
180 .put_super = udf_put_super,
181 .sync_fs = udf_sync_fs,
182 .statfs = udf_statfs,
183 .remount_fs = udf_remount_fs,
184 .show_options = udf_show_options,
189 unsigned int blocksize;
190 unsigned int session;
191 unsigned int lastblock;
194 unsigned short partition;
195 unsigned int fileset;
196 unsigned int rootdir;
203 struct nls_table *nls_map;
206 static int __init init_udf_fs(void)
210 err = init_inodecache();
213 err = register_filesystem(&udf_fstype);
220 destroy_inodecache();
226 static void __exit exit_udf_fs(void)
228 unregister_filesystem(&udf_fstype);
229 destroy_inodecache();
232 module_init(init_udf_fs)
233 module_exit(exit_udf_fs)
235 static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
237 struct udf_sb_info *sbi = UDF_SB(sb);
239 sbi->s_partmaps = kcalloc(count, sizeof(struct udf_part_map),
241 if (!sbi->s_partmaps) {
242 udf_error(sb, __func__,
243 "Unable to allocate space for %d partition maps",
245 sbi->s_partitions = 0;
249 sbi->s_partitions = count;
253 static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt)
255 struct super_block *sb = mnt->mnt_sb;
256 struct udf_sb_info *sbi = UDF_SB(sb);
258 if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT))
259 seq_puts(seq, ",nostrict");
260 if (UDF_QUERY_FLAG(sb, UDF_FLAG_BLOCKSIZE_SET))
261 seq_printf(seq, ",bs=%lu", sb->s_blocksize);
262 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
263 seq_puts(seq, ",unhide");
264 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
265 seq_puts(seq, ",undelete");
266 if (!UDF_QUERY_FLAG(sb, UDF_FLAG_USE_AD_IN_ICB))
267 seq_puts(seq, ",noadinicb");
268 if (UDF_QUERY_FLAG(sb, UDF_FLAG_USE_SHORT_AD))
269 seq_puts(seq, ",shortad");
270 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_FORGET))
271 seq_puts(seq, ",uid=forget");
272 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_IGNORE))
273 seq_puts(seq, ",uid=ignore");
274 if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_FORGET))
275 seq_puts(seq, ",gid=forget");
276 if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_IGNORE))
277 seq_puts(seq, ",gid=ignore");
278 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET))
279 seq_printf(seq, ",uid=%u", sbi->s_uid);
280 if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET))
281 seq_printf(seq, ",gid=%u", sbi->s_gid);
282 if (sbi->s_umask != 0)
283 seq_printf(seq, ",umask=%o", sbi->s_umask);
284 if (sbi->s_fmode != UDF_INVALID_MODE)
285 seq_printf(seq, ",mode=%o", sbi->s_fmode);
286 if (sbi->s_dmode != UDF_INVALID_MODE)
287 seq_printf(seq, ",dmode=%o", sbi->s_dmode);
288 if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET))
289 seq_printf(seq, ",session=%u", sbi->s_session);
290 if (UDF_QUERY_FLAG(sb, UDF_FLAG_LASTBLOCK_SET))
291 seq_printf(seq, ",lastblock=%u", sbi->s_last_block);
292 if (sbi->s_anchor != 0)
293 seq_printf(seq, ",anchor=%u", sbi->s_anchor);
295 * volume, partition, fileset and rootdir seem to be ignored
298 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8))
299 seq_puts(seq, ",utf8");
300 if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP) && sbi->s_nls_map)
301 seq_printf(seq, ",iocharset=%s", sbi->s_nls_map->charset);
310 * Parse mount options.
313 * The following mount options are supported:
315 * gid= Set the default group.
316 * umask= Set the default umask.
317 * mode= Set the default file permissions.
318 * dmode= Set the default directory permissions.
319 * uid= Set the default user.
320 * bs= Set the block size.
321 * unhide Show otherwise hidden files.
322 * undelete Show deleted files in lists.
323 * adinicb Embed data in the inode (default)
324 * noadinicb Don't embed data in the inode
325 * shortad Use short ad's
326 * longad Use long ad's (default)
327 * nostrict Unset strict conformance
328 * iocharset= Set the NLS character set
330 * The remaining are for debugging and disaster recovery:
332 * novrs Skip volume sequence recognition
334 * The following expect a offset from 0.
336 * session= Set the CDROM session (default= last session)
337 * anchor= Override standard anchor location. (default= 256)
338 * volume= Override the VolumeDesc location. (unused)
339 * partition= Override the PartitionDesc location. (unused)
340 * lastblock= Set the last block of the filesystem/
342 * The following expect a offset from the partition root.
344 * fileset= Override the fileset block location. (unused)
345 * rootdir= Override the root directory location. (unused)
346 * WARNING: overriding the rootdir to a non-directory may
347 * yield highly unpredictable results.
350 * options Pointer to mount options string.
351 * uopts Pointer to mount options variable.
354 * <return> 1 Mount options parsed okay.
355 * <return> 0 Error parsing mount options.
358 * July 1, 1997 - Andrew E. Mileski
359 * Written, tested, and released.
363 Opt_novrs, Opt_nostrict, Opt_bs, Opt_unhide, Opt_undelete,
364 Opt_noadinicb, Opt_adinicb, Opt_shortad, Opt_longad,
365 Opt_gid, Opt_uid, Opt_umask, Opt_session, Opt_lastblock,
366 Opt_anchor, Opt_volume, Opt_partition, Opt_fileset,
367 Opt_rootdir, Opt_utf8, Opt_iocharset,
368 Opt_err, Opt_uforget, Opt_uignore, Opt_gforget, Opt_gignore,
372 static const match_table_t tokens = {
373 {Opt_novrs, "novrs"},
374 {Opt_nostrict, "nostrict"},
376 {Opt_unhide, "unhide"},
377 {Opt_undelete, "undelete"},
378 {Opt_noadinicb, "noadinicb"},
379 {Opt_adinicb, "adinicb"},
380 {Opt_shortad, "shortad"},
381 {Opt_longad, "longad"},
382 {Opt_uforget, "uid=forget"},
383 {Opt_uignore, "uid=ignore"},
384 {Opt_gforget, "gid=forget"},
385 {Opt_gignore, "gid=ignore"},
388 {Opt_umask, "umask=%o"},
389 {Opt_session, "session=%u"},
390 {Opt_lastblock, "lastblock=%u"},
391 {Opt_anchor, "anchor=%u"},
392 {Opt_volume, "volume=%u"},
393 {Opt_partition, "partition=%u"},
394 {Opt_fileset, "fileset=%u"},
395 {Opt_rootdir, "rootdir=%u"},
397 {Opt_iocharset, "iocharset=%s"},
398 {Opt_fmode, "mode=%o"},
399 {Opt_dmode, "dmode=%o"},
403 static int udf_parse_options(char *options, struct udf_options *uopt,
410 uopt->partition = 0xFFFF;
411 uopt->session = 0xFFFFFFFF;
414 uopt->volume = 0xFFFFFFFF;
415 uopt->rootdir = 0xFFFFFFFF;
416 uopt->fileset = 0xFFFFFFFF;
417 uopt->nls_map = NULL;
422 while ((p = strsep(&options, ",")) != NULL) {
423 substring_t args[MAX_OPT_ARGS];
428 token = match_token(p, tokens, args);
434 if (match_int(&args[0], &option))
436 uopt->blocksize = option;
437 uopt->flags |= (1 << UDF_FLAG_BLOCKSIZE_SET);
440 uopt->flags |= (1 << UDF_FLAG_UNHIDE);
443 uopt->flags |= (1 << UDF_FLAG_UNDELETE);
446 uopt->flags &= ~(1 << UDF_FLAG_USE_AD_IN_ICB);
449 uopt->flags |= (1 << UDF_FLAG_USE_AD_IN_ICB);
452 uopt->flags |= (1 << UDF_FLAG_USE_SHORT_AD);
455 uopt->flags &= ~(1 << UDF_FLAG_USE_SHORT_AD);
458 if (match_int(args, &option))
461 uopt->flags |= (1 << UDF_FLAG_GID_SET);
464 if (match_int(args, &option))
467 uopt->flags |= (1 << UDF_FLAG_UID_SET);
470 if (match_octal(args, &option))
472 uopt->umask = option;
475 uopt->flags &= ~(1 << UDF_FLAG_STRICT);
478 if (match_int(args, &option))
480 uopt->session = option;
482 uopt->flags |= (1 << UDF_FLAG_SESSION_SET);
485 if (match_int(args, &option))
487 uopt->lastblock = option;
489 uopt->flags |= (1 << UDF_FLAG_LASTBLOCK_SET);
492 if (match_int(args, &option))
494 uopt->anchor = option;
497 if (match_int(args, &option))
499 uopt->volume = option;
502 if (match_int(args, &option))
504 uopt->partition = option;
507 if (match_int(args, &option))
509 uopt->fileset = option;
512 if (match_int(args, &option))
514 uopt->rootdir = option;
517 uopt->flags |= (1 << UDF_FLAG_UTF8);
519 #ifdef CONFIG_UDF_NLS
521 uopt->nls_map = load_nls(args[0].from);
522 uopt->flags |= (1 << UDF_FLAG_NLS_MAP);
526 uopt->flags |= (1 << UDF_FLAG_UID_IGNORE);
529 uopt->flags |= (1 << UDF_FLAG_UID_FORGET);
532 uopt->flags |= (1 << UDF_FLAG_GID_IGNORE);
535 uopt->flags |= (1 << UDF_FLAG_GID_FORGET);
538 if (match_octal(args, &option))
540 uopt->fmode = option & 0777;
543 if (match_octal(args, &option))
545 uopt->dmode = option & 0777;
548 printk(KERN_ERR "udf: bad mount option \"%s\" "
549 "or missing value\n", p);
556 static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
558 struct udf_options uopt;
559 struct udf_sb_info *sbi = UDF_SB(sb);
562 uopt.flags = sbi->s_flags;
563 uopt.uid = sbi->s_uid;
564 uopt.gid = sbi->s_gid;
565 uopt.umask = sbi->s_umask;
566 uopt.fmode = sbi->s_fmode;
567 uopt.dmode = sbi->s_dmode;
569 if (!udf_parse_options(options, &uopt, true))
573 sbi->s_flags = uopt.flags;
574 sbi->s_uid = uopt.uid;
575 sbi->s_gid = uopt.gid;
576 sbi->s_umask = uopt.umask;
577 sbi->s_fmode = uopt.fmode;
578 sbi->s_dmode = uopt.dmode;
580 if (sbi->s_lvid_bh) {
581 int write_rev = le16_to_cpu(udf_sb_lvidiu(sbi)->minUDFWriteRev);
582 if (write_rev > UDF_MAX_WRITE_VERSION)
586 if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
589 if (*flags & MS_RDONLY)
599 /* Check Volume Structure Descriptors (ECMA 167 2/9.1) */
600 /* We also check any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */
601 static loff_t udf_check_vsd(struct super_block *sb)
603 struct volStructDesc *vsd = NULL;
604 loff_t sector = 32768;
606 struct buffer_head *bh = NULL;
609 struct udf_sb_info *sbi;
612 if (sb->s_blocksize < sizeof(struct volStructDesc))
613 sectorsize = sizeof(struct volStructDesc);
615 sectorsize = sb->s_blocksize;
617 sector += (sbi->s_session << sb->s_blocksize_bits);
619 udf_debug("Starting at sector %u (%ld byte sectors)\n",
620 (unsigned int)(sector >> sb->s_blocksize_bits),
622 /* Process the sequence (if applicable) */
623 for (; !nsr02 && !nsr03; sector += sectorsize) {
625 bh = udf_tread(sb, sector >> sb->s_blocksize_bits);
629 /* Look for ISO descriptors */
630 vsd = (struct volStructDesc *)(bh->b_data +
631 (sector & (sb->s_blocksize - 1)));
633 if (vsd->stdIdent[0] == 0) {
636 } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001,
638 switch (vsd->structType) {
640 udf_debug("ISO9660 Boot Record found\n");
643 udf_debug("ISO9660 Primary Volume Descriptor "
647 udf_debug("ISO9660 Supplementary Volume "
648 "Descriptor found\n");
651 udf_debug("ISO9660 Volume Partition Descriptor "
655 udf_debug("ISO9660 Volume Descriptor Set "
656 "Terminator found\n");
659 udf_debug("ISO9660 VRS (%u) found\n",
663 } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BEA01,
666 else if (!strncmp(vsd->stdIdent, VSD_STD_ID_TEA01,
670 } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR02,
673 else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03,
683 else if (sector - (sbi->s_session << sb->s_blocksize_bits) == 32768)
689 static int udf_find_fileset(struct super_block *sb,
690 struct kernel_lb_addr *fileset,
691 struct kernel_lb_addr *root)
693 struct buffer_head *bh = NULL;
696 struct udf_sb_info *sbi;
698 if (fileset->logicalBlockNum != 0xFFFFFFFF ||
699 fileset->partitionReferenceNum != 0xFFFF) {
700 bh = udf_read_ptagged(sb, fileset, 0, &ident);
704 } else if (ident != TAG_IDENT_FSD) {
713 /* Search backwards through the partitions */
714 struct kernel_lb_addr newfileset;
716 /* --> cvg: FIXME - is it reasonable? */
719 for (newfileset.partitionReferenceNum = sbi->s_partitions - 1;
720 (newfileset.partitionReferenceNum != 0xFFFF &&
721 fileset->logicalBlockNum == 0xFFFFFFFF &&
722 fileset->partitionReferenceNum == 0xFFFF);
723 newfileset.partitionReferenceNum--) {
724 lastblock = sbi->s_partmaps
725 [newfileset.partitionReferenceNum]
727 newfileset.logicalBlockNum = 0;
730 bh = udf_read_ptagged(sb, &newfileset, 0,
733 newfileset.logicalBlockNum++;
740 struct spaceBitmapDesc *sp;
741 sp = (struct spaceBitmapDesc *)
743 newfileset.logicalBlockNum += 1 +
744 ((le32_to_cpu(sp->numOfBytes) +
745 sizeof(struct spaceBitmapDesc)
746 - 1) >> sb->s_blocksize_bits);
751 *fileset = newfileset;
754 newfileset.logicalBlockNum++;
759 } while (newfileset.logicalBlockNum < lastblock &&
760 fileset->logicalBlockNum == 0xFFFFFFFF &&
761 fileset->partitionReferenceNum == 0xFFFF);
765 if ((fileset->logicalBlockNum != 0xFFFFFFFF ||
766 fileset->partitionReferenceNum != 0xFFFF) && bh) {
767 udf_debug("Fileset at block=%d, partition=%d\n",
768 fileset->logicalBlockNum,
769 fileset->partitionReferenceNum);
771 sbi->s_partition = fileset->partitionReferenceNum;
772 udf_load_fileset(sb, bh, root);
779 static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
781 struct primaryVolDesc *pvoldesc;
782 struct ustr *instr, *outstr;
783 struct buffer_head *bh;
787 instr = kmalloc(sizeof(struct ustr), GFP_NOFS);
791 outstr = kmalloc(sizeof(struct ustr), GFP_NOFS);
795 bh = udf_read_tagged(sb, block, block, &ident);
799 BUG_ON(ident != TAG_IDENT_PVD);
801 pvoldesc = (struct primaryVolDesc *)bh->b_data;
803 if (udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,
804 pvoldesc->recordingDateAndTime)) {
806 struct timestamp *ts = &pvoldesc->recordingDateAndTime;
807 udf_debug("recording time %04u/%02u/%02u"
809 le16_to_cpu(ts->year), ts->month, ts->day, ts->hour,
810 ts->minute, le16_to_cpu(ts->typeAndTimezone));
814 if (!udf_build_ustr(instr, pvoldesc->volIdent, 32))
815 if (udf_CS0toUTF8(outstr, instr)) {
816 strncpy(UDF_SB(sb)->s_volume_ident, outstr->u_name,
817 outstr->u_len > 31 ? 31 : outstr->u_len);
818 udf_debug("volIdent[] = '%s'\n",
819 UDF_SB(sb)->s_volume_ident);
822 if (!udf_build_ustr(instr, pvoldesc->volSetIdent, 128))
823 if (udf_CS0toUTF8(outstr, instr))
824 udf_debug("volSetIdent[] = '%s'\n", outstr->u_name);
835 static int udf_load_metadata_files(struct super_block *sb, int partition)
837 struct udf_sb_info *sbi = UDF_SB(sb);
838 struct udf_part_map *map;
839 struct udf_meta_data *mdata;
840 struct kernel_lb_addr addr;
843 map = &sbi->s_partmaps[partition];
844 mdata = &map->s_type_specific.s_metadata;
846 /* metadata address */
847 addr.logicalBlockNum = mdata->s_meta_file_loc;
848 addr.partitionReferenceNum = map->s_partition_num;
850 udf_debug("Metadata file location: block = %d part = %d\n",
851 addr.logicalBlockNum, addr.partitionReferenceNum);
853 mdata->s_metadata_fe = udf_iget(sb, &addr);
855 if (mdata->s_metadata_fe == NULL) {
856 udf_warning(sb, __func__, "metadata inode efe not found, "
857 "will try mirror inode.");
859 } else if (UDF_I(mdata->s_metadata_fe)->i_alloc_type !=
860 ICBTAG_FLAG_AD_SHORT) {
861 udf_warning(sb, __func__, "metadata inode efe does not have "
862 "short allocation descriptors!");
864 iput(mdata->s_metadata_fe);
865 mdata->s_metadata_fe = NULL;
868 /* mirror file entry */
869 addr.logicalBlockNum = mdata->s_mirror_file_loc;
870 addr.partitionReferenceNum = map->s_partition_num;
872 udf_debug("Mirror metadata file location: block = %d part = %d\n",
873 addr.logicalBlockNum, addr.partitionReferenceNum);
875 mdata->s_mirror_fe = udf_iget(sb, &addr);
877 if (mdata->s_mirror_fe == NULL) {
879 udf_error(sb, __func__, "mirror inode efe not found "
880 "and metadata inode is missing too, exiting...");
883 udf_warning(sb, __func__, "mirror inode efe not found,"
884 " but metadata inode is OK");
885 } else if (UDF_I(mdata->s_mirror_fe)->i_alloc_type !=
886 ICBTAG_FLAG_AD_SHORT) {
887 udf_warning(sb, __func__, "mirror inode efe does not have "
888 "short allocation descriptors!");
889 iput(mdata->s_mirror_fe);
890 mdata->s_mirror_fe = NULL;
898 * Load only if bitmap file location differs from 0xFFFFFFFF (DCN-5102)
900 if (mdata->s_bitmap_file_loc != 0xFFFFFFFF) {
901 addr.logicalBlockNum = mdata->s_bitmap_file_loc;
902 addr.partitionReferenceNum = map->s_partition_num;
904 udf_debug("Bitmap file location: block = %d part = %d\n",
905 addr.logicalBlockNum, addr.partitionReferenceNum);
907 mdata->s_bitmap_fe = udf_iget(sb, &addr);
909 if (mdata->s_bitmap_fe == NULL) {
910 if (sb->s_flags & MS_RDONLY)
911 udf_warning(sb, __func__, "bitmap inode efe "
912 "not found but it's ok since the disc"
913 " is mounted read-only");
915 udf_error(sb, __func__, "bitmap inode efe not "
916 "found and attempted read-write mount");
922 udf_debug("udf_load_metadata_files Ok\n");
930 static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
931 struct kernel_lb_addr *root)
933 struct fileSetDesc *fset;
935 fset = (struct fileSetDesc *)bh->b_data;
937 *root = lelb_to_cpu(fset->rootDirectoryICB.extLocation);
939 UDF_SB(sb)->s_serial_number = le16_to_cpu(fset->descTag.tagSerialNum);
941 udf_debug("Rootdir at block=%d, partition=%d\n",
942 root->logicalBlockNum, root->partitionReferenceNum);
945 int udf_compute_nr_groups(struct super_block *sb, u32 partition)
947 struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
948 return DIV_ROUND_UP(map->s_partition_len +
949 (sizeof(struct spaceBitmapDesc) << 3),
950 sb->s_blocksize * 8);
953 static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)
955 struct udf_bitmap *bitmap;
959 nr_groups = udf_compute_nr_groups(sb, index);
960 size = sizeof(struct udf_bitmap) +
961 (sizeof(struct buffer_head *) * nr_groups);
963 if (size <= PAGE_SIZE)
964 bitmap = kmalloc(size, GFP_KERNEL);
966 bitmap = vmalloc(size); /* TODO: get rid of vmalloc */
968 if (bitmap == NULL) {
969 udf_error(sb, __func__,
970 "Unable to allocate space for bitmap "
971 "and %d buffer_head pointers", nr_groups);
975 memset(bitmap, 0x00, size);
976 bitmap->s_block_bitmap = (struct buffer_head **)(bitmap + 1);
977 bitmap->s_nr_groups = nr_groups;
981 static int udf_fill_partdesc_info(struct super_block *sb,
982 struct partitionDesc *p, int p_index)
984 struct udf_part_map *map;
985 struct udf_sb_info *sbi = UDF_SB(sb);
986 struct partitionHeaderDesc *phd;
988 map = &sbi->s_partmaps[p_index];
990 map->s_partition_len = le32_to_cpu(p->partitionLength); /* blocks */
991 map->s_partition_root = le32_to_cpu(p->partitionStartingLocation);
993 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
994 map->s_partition_flags |= UDF_PART_FLAG_READ_ONLY;
995 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_WRITE_ONCE))
996 map->s_partition_flags |= UDF_PART_FLAG_WRITE_ONCE;
997 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_REWRITABLE))
998 map->s_partition_flags |= UDF_PART_FLAG_REWRITABLE;
999 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
1000 map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
1002 udf_debug("Partition (%d type %x) starts at physical %d, "
1003 "block length %d\n", p_index,
1004 map->s_partition_type, map->s_partition_root,
1005 map->s_partition_len);
1007 if (strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) &&
1008 strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03))
1011 phd = (struct partitionHeaderDesc *)p->partitionContentsUse;
1012 if (phd->unallocSpaceTable.extLength) {
1013 struct kernel_lb_addr loc = {
1014 .logicalBlockNum = le32_to_cpu(
1015 phd->unallocSpaceTable.extPosition),
1016 .partitionReferenceNum = p_index,
1019 map->s_uspace.s_table = udf_iget(sb, &loc);
1020 if (!map->s_uspace.s_table) {
1021 udf_debug("cannot load unallocSpaceTable (part %d)\n",
1025 map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
1026 udf_debug("unallocSpaceTable (part %d) @ %ld\n",
1027 p_index, map->s_uspace.s_table->i_ino);
1030 if (phd->unallocSpaceBitmap.extLength) {
1031 struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
1034 map->s_uspace.s_bitmap = bitmap;
1035 bitmap->s_extLength = le32_to_cpu(
1036 phd->unallocSpaceBitmap.extLength);
1037 bitmap->s_extPosition = le32_to_cpu(
1038 phd->unallocSpaceBitmap.extPosition);
1039 map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
1040 udf_debug("unallocSpaceBitmap (part %d) @ %d\n", p_index,
1041 bitmap->s_extPosition);
1044 if (phd->partitionIntegrityTable.extLength)
1045 udf_debug("partitionIntegrityTable (part %d)\n", p_index);
1047 if (phd->freedSpaceTable.extLength) {
1048 struct kernel_lb_addr loc = {
1049 .logicalBlockNum = le32_to_cpu(
1050 phd->freedSpaceTable.extPosition),
1051 .partitionReferenceNum = p_index,
1054 map->s_fspace.s_table = udf_iget(sb, &loc);
1055 if (!map->s_fspace.s_table) {
1056 udf_debug("cannot load freedSpaceTable (part %d)\n",
1061 map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
1062 udf_debug("freedSpaceTable (part %d) @ %ld\n",
1063 p_index, map->s_fspace.s_table->i_ino);
1066 if (phd->freedSpaceBitmap.extLength) {
1067 struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
1070 map->s_fspace.s_bitmap = bitmap;
1071 bitmap->s_extLength = le32_to_cpu(
1072 phd->freedSpaceBitmap.extLength);
1073 bitmap->s_extPosition = le32_to_cpu(
1074 phd->freedSpaceBitmap.extPosition);
1075 map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
1076 udf_debug("freedSpaceBitmap (part %d) @ %d\n", p_index,
1077 bitmap->s_extPosition);
1082 static void udf_find_vat_block(struct super_block *sb, int p_index,
1083 int type1_index, sector_t start_block)
1085 struct udf_sb_info *sbi = UDF_SB(sb);
1086 struct udf_part_map *map = &sbi->s_partmaps[p_index];
1088 struct kernel_lb_addr ino;
1091 * VAT file entry is in the last recorded block. Some broken disks have
1092 * it a few blocks before so try a bit harder...
1094 ino.partitionReferenceNum = type1_index;
1095 for (vat_block = start_block;
1096 vat_block >= map->s_partition_root &&
1097 vat_block >= start_block - 3 &&
1098 !sbi->s_vat_inode; vat_block--) {
1099 ino.logicalBlockNum = vat_block - map->s_partition_root;
1100 sbi->s_vat_inode = udf_iget(sb, &ino);
1104 static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
1106 struct udf_sb_info *sbi = UDF_SB(sb);
1107 struct udf_part_map *map = &sbi->s_partmaps[p_index];
1108 struct buffer_head *bh = NULL;
1109 struct udf_inode_info *vati;
1111 struct virtualAllocationTable20 *vat20;
1112 sector_t blocks = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;
1114 udf_find_vat_block(sb, p_index, type1_index, sbi->s_last_block);
1115 if (!sbi->s_vat_inode &&
1116 sbi->s_last_block != blocks - 1) {
1117 printk(KERN_NOTICE "UDF-fs: Failed to read VAT inode from the"
1118 " last recorded block (%lu), retrying with the last "
1119 "block of the device (%lu).\n",
1120 (unsigned long)sbi->s_last_block,
1121 (unsigned long)blocks - 1);
1122 udf_find_vat_block(sb, p_index, type1_index, blocks - 1);
1124 if (!sbi->s_vat_inode)
1127 if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
1128 map->s_type_specific.s_virtual.s_start_offset = 0;
1129 map->s_type_specific.s_virtual.s_num_entries =
1130 (sbi->s_vat_inode->i_size - 36) >> 2;
1131 } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
1132 vati = UDF_I(sbi->s_vat_inode);
1133 if (vati->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
1134 pos = udf_block_map(sbi->s_vat_inode, 0);
1135 bh = sb_bread(sb, pos);
1138 vat20 = (struct virtualAllocationTable20 *)bh->b_data;
1140 vat20 = (struct virtualAllocationTable20 *)
1144 map->s_type_specific.s_virtual.s_start_offset =
1145 le16_to_cpu(vat20->lengthHeader);
1146 map->s_type_specific.s_virtual.s_num_entries =
1147 (sbi->s_vat_inode->i_size -
1148 map->s_type_specific.s_virtual.
1149 s_start_offset) >> 2;
1155 static int udf_load_partdesc(struct super_block *sb, sector_t block)
1157 struct buffer_head *bh;
1158 struct partitionDesc *p;
1159 struct udf_part_map *map;
1160 struct udf_sb_info *sbi = UDF_SB(sb);
1162 uint16_t partitionNumber;
1166 bh = udf_read_tagged(sb, block, block, &ident);
1169 if (ident != TAG_IDENT_PD)
1172 p = (struct partitionDesc *)bh->b_data;
1173 partitionNumber = le16_to_cpu(p->partitionNumber);
1175 /* First scan for TYPE1, SPARABLE and METADATA partitions */
1176 for (i = 0; i < sbi->s_partitions; i++) {
1177 map = &sbi->s_partmaps[i];
1178 udf_debug("Searching map: (%d == %d)\n",
1179 map->s_partition_num, partitionNumber);
1180 if (map->s_partition_num == partitionNumber &&
1181 (map->s_partition_type == UDF_TYPE1_MAP15 ||
1182 map->s_partition_type == UDF_SPARABLE_MAP15))
1186 if (i >= sbi->s_partitions) {
1187 udf_debug("Partition (%d) not found in partition map\n",
1192 ret = udf_fill_partdesc_info(sb, p, i);
1195 * Now rescan for VIRTUAL or METADATA partitions when SPARABLE and
1196 * PHYSICAL partitions are already set up
1199 for (i = 0; i < sbi->s_partitions; i++) {
1200 map = &sbi->s_partmaps[i];
1202 if (map->s_partition_num == partitionNumber &&
1203 (map->s_partition_type == UDF_VIRTUAL_MAP15 ||
1204 map->s_partition_type == UDF_VIRTUAL_MAP20 ||
1205 map->s_partition_type == UDF_METADATA_MAP25))
1209 if (i >= sbi->s_partitions)
1212 ret = udf_fill_partdesc_info(sb, p, i);
1216 if (map->s_partition_type == UDF_METADATA_MAP25) {
1217 ret = udf_load_metadata_files(sb, i);
1219 printk(KERN_ERR "UDF-fs: error loading MetaData "
1220 "partition map %d\n", i);
1224 ret = udf_load_vat(sb, i, type1_idx);
1228 * Mark filesystem read-only if we have a partition with
1229 * virtual map since we don't handle writing to it (we
1230 * overwrite blocks instead of relocating them).
1232 sb->s_flags |= MS_RDONLY;
1233 printk(KERN_NOTICE "UDF-fs: Filesystem marked read-only "
1234 "because writing to pseudooverwrite partition is "
1235 "not implemented.\n");
1238 /* In case loading failed, we handle cleanup in udf_fill_super */
1243 static int udf_load_logicalvol(struct super_block *sb, sector_t block,
1244 struct kernel_lb_addr *fileset)
1246 struct logicalVolDesc *lvd;
1249 struct udf_sb_info *sbi = UDF_SB(sb);
1250 struct genericPartitionMap *gpm;
1252 struct buffer_head *bh;
1255 bh = udf_read_tagged(sb, block, block, &ident);
1258 BUG_ON(ident != TAG_IDENT_LVD);
1259 lvd = (struct logicalVolDesc *)bh->b_data;
1261 i = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps));
1267 for (i = 0, offset = 0;
1268 i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength);
1269 i++, offset += gpm->partitionMapLength) {
1270 struct udf_part_map *map = &sbi->s_partmaps[i];
1271 gpm = (struct genericPartitionMap *)
1272 &(lvd->partitionMaps[offset]);
1273 type = gpm->partitionMapType;
1275 struct genericPartitionMap1 *gpm1 =
1276 (struct genericPartitionMap1 *)gpm;
1277 map->s_partition_type = UDF_TYPE1_MAP15;
1278 map->s_volumeseqnum = le16_to_cpu(gpm1->volSeqNum);
1279 map->s_partition_num = le16_to_cpu(gpm1->partitionNum);
1280 map->s_partition_func = NULL;
1281 } else if (type == 2) {
1282 struct udfPartitionMap2 *upm2 =
1283 (struct udfPartitionMap2 *)gpm;
1284 if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL,
1285 strlen(UDF_ID_VIRTUAL))) {
1287 le16_to_cpu(((__le16 *)upm2->partIdent.
1290 map->s_partition_type =
1292 map->s_partition_func =
1293 udf_get_pblock_virt15;
1295 map->s_partition_type =
1297 map->s_partition_func =
1298 udf_get_pblock_virt20;
1300 } else if (!strncmp(upm2->partIdent.ident,
1302 strlen(UDF_ID_SPARABLE))) {
1304 struct sparingTable *st;
1305 struct sparablePartitionMap *spm =
1306 (struct sparablePartitionMap *)gpm;
1308 map->s_partition_type = UDF_SPARABLE_MAP15;
1309 map->s_type_specific.s_sparing.s_packet_len =
1310 le16_to_cpu(spm->packetLength);
1311 for (j = 0; j < spm->numSparingTables; j++) {
1312 struct buffer_head *bh2;
1315 spm->locSparingTable[j]);
1316 bh2 = udf_read_tagged(sb, loc, loc,
1318 map->s_type_specific.s_sparing.
1319 s_spar_map[j] = bh2;
1324 st = (struct sparingTable *)bh2->b_data;
1325 if (ident != 0 || strncmp(
1326 st->sparingIdent.ident,
1328 strlen(UDF_ID_SPARING))) {
1330 map->s_type_specific.s_sparing.
1331 s_spar_map[j] = NULL;
1334 map->s_partition_func = udf_get_pblock_spar15;
1335 } else if (!strncmp(upm2->partIdent.ident,
1337 strlen(UDF_ID_METADATA))) {
1338 struct udf_meta_data *mdata =
1339 &map->s_type_specific.s_metadata;
1340 struct metadataPartitionMap *mdm =
1341 (struct metadataPartitionMap *)
1342 &(lvd->partitionMaps[offset]);
1343 udf_debug("Parsing Logical vol part %d "
1344 "type %d id=%s\n", i, type,
1347 map->s_partition_type = UDF_METADATA_MAP25;
1348 map->s_partition_func = udf_get_pblock_meta25;
1350 mdata->s_meta_file_loc =
1351 le32_to_cpu(mdm->metadataFileLoc);
1352 mdata->s_mirror_file_loc =
1353 le32_to_cpu(mdm->metadataMirrorFileLoc);
1354 mdata->s_bitmap_file_loc =
1355 le32_to_cpu(mdm->metadataBitmapFileLoc);
1356 mdata->s_alloc_unit_size =
1357 le32_to_cpu(mdm->allocUnitSize);
1358 mdata->s_align_unit_size =
1359 le16_to_cpu(mdm->alignUnitSize);
1360 mdata->s_dup_md_flag =
1363 udf_debug("Metadata Ident suffix=0x%x\n",
1366 mdm->partIdent.identSuffix)[0])));
1367 udf_debug("Metadata part num=%d\n",
1368 le16_to_cpu(mdm->partitionNum));
1369 udf_debug("Metadata part alloc unit size=%d\n",
1370 le32_to_cpu(mdm->allocUnitSize));
1371 udf_debug("Metadata file loc=%d\n",
1372 le32_to_cpu(mdm->metadataFileLoc));
1373 udf_debug("Mirror file loc=%d\n",
1374 le32_to_cpu(mdm->metadataMirrorFileLoc));
1375 udf_debug("Bitmap file loc=%d\n",
1376 le32_to_cpu(mdm->metadataBitmapFileLoc));
1377 udf_debug("Duplicate Flag: %d %d\n",
1378 mdata->s_dup_md_flag, mdm->flags);
1380 udf_debug("Unknown ident: %s\n",
1381 upm2->partIdent.ident);
1384 map->s_volumeseqnum = le16_to_cpu(upm2->volSeqNum);
1385 map->s_partition_num = le16_to_cpu(upm2->partitionNum);
1387 udf_debug("Partition (%d:%d) type %d on volume %d\n",
1388 i, map->s_partition_num, type,
1389 map->s_volumeseqnum);
1393 struct long_ad *la = (struct long_ad *)&(lvd->logicalVolContentsUse[0]);
1395 *fileset = lelb_to_cpu(la->extLocation);
1396 udf_debug("FileSet found in LogicalVolDesc at block=%d, "
1397 "partition=%d\n", fileset->logicalBlockNum,
1398 fileset->partitionReferenceNum);
1400 if (lvd->integritySeqExt.extLength)
1401 udf_load_logicalvolint(sb, leea_to_cpu(lvd->integritySeqExt));
1409 * udf_load_logicalvolint
1412 static void udf_load_logicalvolint(struct super_block *sb, struct kernel_extent_ad loc)
1414 struct buffer_head *bh = NULL;
1416 struct udf_sb_info *sbi = UDF_SB(sb);
1417 struct logicalVolIntegrityDesc *lvid;
1419 while (loc.extLength > 0 &&
1420 (bh = udf_read_tagged(sb, loc.extLocation,
1421 loc.extLocation, &ident)) &&
1422 ident == TAG_IDENT_LVID) {
1423 sbi->s_lvid_bh = bh;
1424 lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
1426 if (lvid->nextIntegrityExt.extLength)
1427 udf_load_logicalvolint(sb,
1428 leea_to_cpu(lvid->nextIntegrityExt));
1430 if (sbi->s_lvid_bh != bh)
1432 loc.extLength -= sb->s_blocksize;
1435 if (sbi->s_lvid_bh != bh)
1440 * udf_process_sequence
1443 * Process a main/reserve volume descriptor sequence.
1446 * sb Pointer to _locked_ superblock.
1447 * block First block of first extent of the sequence.
1448 * lastblock Lastblock of first extent of the sequence.
1451 * July 1, 1997 - Andrew E. Mileski
1452 * Written, tested, and released.
1454 static noinline int udf_process_sequence(struct super_block *sb, long block,
1455 long lastblock, struct kernel_lb_addr *fileset)
1457 struct buffer_head *bh = NULL;
1458 struct udf_vds_record vds[VDS_POS_LENGTH];
1459 struct udf_vds_record *curr;
1460 struct generic_desc *gd;
1461 struct volDescPtr *vdp;
1465 long next_s = 0, next_e = 0;
1467 memset(vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH);
1470 * Read the main descriptor sequence and find which descriptors
1473 for (; (!done && block <= lastblock); block++) {
1475 bh = udf_read_tagged(sb, block, block, &ident);
1477 printk(KERN_ERR "udf: Block %Lu of volume descriptor "
1478 "sequence is corrupted or we could not read "
1479 "it.\n", (unsigned long long)block);
1483 /* Process each descriptor (ISO 13346 3/8.3-8.4) */
1484 gd = (struct generic_desc *)bh->b_data;
1485 vdsn = le32_to_cpu(gd->volDescSeqNum);
1487 case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */
1488 curr = &vds[VDS_POS_PRIMARY_VOL_DESC];
1489 if (vdsn >= curr->volDescSeqNum) {
1490 curr->volDescSeqNum = vdsn;
1491 curr->block = block;
1494 case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */
1495 curr = &vds[VDS_POS_VOL_DESC_PTR];
1496 if (vdsn >= curr->volDescSeqNum) {
1497 curr->volDescSeqNum = vdsn;
1498 curr->block = block;
1500 vdp = (struct volDescPtr *)bh->b_data;
1501 next_s = le32_to_cpu(
1502 vdp->nextVolDescSeqExt.extLocation);
1503 next_e = le32_to_cpu(
1504 vdp->nextVolDescSeqExt.extLength);
1505 next_e = next_e >> sb->s_blocksize_bits;
1509 case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */
1510 curr = &vds[VDS_POS_IMP_USE_VOL_DESC];
1511 if (vdsn >= curr->volDescSeqNum) {
1512 curr->volDescSeqNum = vdsn;
1513 curr->block = block;
1516 case TAG_IDENT_PD: /* ISO 13346 3/10.5 */
1517 curr = &vds[VDS_POS_PARTITION_DESC];
1519 curr->block = block;
1521 case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */
1522 curr = &vds[VDS_POS_LOGICAL_VOL_DESC];
1523 if (vdsn >= curr->volDescSeqNum) {
1524 curr->volDescSeqNum = vdsn;
1525 curr->block = block;
1528 case TAG_IDENT_USD: /* ISO 13346 3/10.8 */
1529 curr = &vds[VDS_POS_UNALLOC_SPACE_DESC];
1530 if (vdsn >= curr->volDescSeqNum) {
1531 curr->volDescSeqNum = vdsn;
1532 curr->block = block;
1535 case TAG_IDENT_TD: /* ISO 13346 3/10.9 */
1536 vds[VDS_POS_TERMINATING_DESC].block = block;
1540 next_s = next_e = 0;
1548 * Now read interesting descriptors again and process them
1549 * in a suitable order
1551 if (!vds[VDS_POS_PRIMARY_VOL_DESC].block) {
1552 printk(KERN_ERR "udf: Primary Volume Descriptor not found!\n");
1555 if (udf_load_pvoldesc(sb, vds[VDS_POS_PRIMARY_VOL_DESC].block))
1558 if (vds[VDS_POS_LOGICAL_VOL_DESC].block && udf_load_logicalvol(sb,
1559 vds[VDS_POS_LOGICAL_VOL_DESC].block, fileset))
1562 if (vds[VDS_POS_PARTITION_DESC].block) {
1564 * We rescan the whole descriptor sequence to find
1565 * partition descriptor blocks and process them.
1567 for (block = vds[VDS_POS_PARTITION_DESC].block;
1568 block < vds[VDS_POS_TERMINATING_DESC].block;
1570 if (udf_load_partdesc(sb, block))
1577 static int udf_load_sequence(struct super_block *sb, struct buffer_head *bh,
1578 struct kernel_lb_addr *fileset)
1580 struct anchorVolDescPtr *anchor;
1581 long main_s, main_e, reserve_s, reserve_e;
1583 anchor = (struct anchorVolDescPtr *)bh->b_data;
1585 /* Locate the main sequence */
1586 main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
1587 main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength);
1588 main_e = main_e >> sb->s_blocksize_bits;
1591 /* Locate the reserve sequence */
1592 reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation);
1593 reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength);
1594 reserve_e = reserve_e >> sb->s_blocksize_bits;
1595 reserve_e += reserve_s;
1597 /* Process the main & reserve sequences */
1598 /* responsible for finding the PartitionDesc(s) */
1599 if (!udf_process_sequence(sb, main_s, main_e, fileset))
1601 return !udf_process_sequence(sb, reserve_s, reserve_e, fileset);
1605 * Check whether there is an anchor block in the given block and
1606 * load Volume Descriptor Sequence if so.
1608 static int udf_check_anchor_block(struct super_block *sb, sector_t block,
1609 struct kernel_lb_addr *fileset)
1611 struct buffer_head *bh;
1615 if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&
1616 udf_fixed_to_variable(block) >=
1617 sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
1620 bh = udf_read_tagged(sb, block, block, &ident);
1623 if (ident != TAG_IDENT_AVDP) {
1627 ret = udf_load_sequence(sb, bh, fileset);
1632 /* Search for an anchor volume descriptor pointer */
1633 static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock,
1634 struct kernel_lb_addr *fileset)
1638 struct udf_sb_info *sbi = UDF_SB(sb);
1641 /* First try user provided anchor */
1642 if (sbi->s_anchor) {
1643 if (udf_check_anchor_block(sb, sbi->s_anchor, fileset))
1647 * according to spec, anchor is in either:
1651 * however, if the disc isn't closed, it could be 512.
1653 if (udf_check_anchor_block(sb, sbi->s_session + 256, fileset))
1656 * The trouble is which block is the last one. Drives often misreport
1657 * this so we try various possibilities.
1659 last[last_count++] = lastblock;
1661 last[last_count++] = lastblock - 1;
1662 last[last_count++] = lastblock + 1;
1664 last[last_count++] = lastblock - 2;
1665 if (lastblock >= 150)
1666 last[last_count++] = lastblock - 150;
1667 if (lastblock >= 152)
1668 last[last_count++] = lastblock - 152;
1670 for (i = 0; i < last_count; i++) {
1671 if (last[i] >= sb->s_bdev->bd_inode->i_size >>
1672 sb->s_blocksize_bits)
1674 if (udf_check_anchor_block(sb, last[i], fileset))
1678 if (udf_check_anchor_block(sb, last[i] - 256, fileset))
1682 /* Finally try block 512 in case media is open */
1683 if (udf_check_anchor_block(sb, sbi->s_session + 512, fileset))
1689 * Find an anchor volume descriptor and load Volume Descriptor Sequence from
1690 * area specified by it. The function expects sbi->s_lastblock to be the last
1691 * block on the media.
1693 * Return 1 if ok, 0 if not found.
1696 static int udf_find_anchor(struct super_block *sb,
1697 struct kernel_lb_addr *fileset)
1700 struct udf_sb_info *sbi = UDF_SB(sb);
1702 lastblock = udf_scan_anchors(sb, sbi->s_last_block, fileset);
1706 /* No anchor found? Try VARCONV conversion of block numbers */
1707 UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
1708 /* Firstly, we try to not convert number of the last block */
1709 lastblock = udf_scan_anchors(sb,
1710 udf_variable_to_fixed(sbi->s_last_block),
1715 /* Secondly, we try with converted number of the last block */
1716 lastblock = udf_scan_anchors(sb, sbi->s_last_block, fileset);
1718 /* VARCONV didn't help. Clear it. */
1719 UDF_CLEAR_FLAG(sb, UDF_FLAG_VARCONV);
1723 sbi->s_last_block = lastblock;
1728 * Check Volume Structure Descriptor, find Anchor block and load Volume
1729 * Descriptor Sequence
1731 static int udf_load_vrs(struct super_block *sb, struct udf_options *uopt,
1732 int silent, struct kernel_lb_addr *fileset)
1734 struct udf_sb_info *sbi = UDF_SB(sb);
1737 if (!sb_set_blocksize(sb, uopt->blocksize)) {
1739 printk(KERN_WARNING "UDF-fs: Bad block size\n");
1742 sbi->s_last_block = uopt->lastblock;
1744 /* Check that it is NSR02 compliant */
1745 nsr_off = udf_check_vsd(sb);
1748 printk(KERN_WARNING "UDF-fs: No VRS found\n");
1752 udf_debug("Failed to read byte 32768. Assuming open "
1753 "disc. Skipping validity check\n");
1754 if (!sbi->s_last_block)
1755 sbi->s_last_block = udf_get_last_block(sb);
1757 udf_debug("Validity check skipped because of novrs option\n");
1760 /* Look for anchor block and load Volume Descriptor Sequence */
1761 sbi->s_anchor = uopt->anchor;
1762 if (!udf_find_anchor(sb, fileset)) {
1764 printk(KERN_WARNING "UDF-fs: No anchor found\n");
1770 static void udf_open_lvid(struct super_block *sb)
1772 struct udf_sb_info *sbi = UDF_SB(sb);
1773 struct buffer_head *bh = sbi->s_lvid_bh;
1774 struct logicalVolIntegrityDesc *lvid;
1775 struct logicalVolIntegrityDescImpUse *lvidiu;
1779 lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
1780 lvidiu = udf_sb_lvidiu(sbi);
1782 lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
1783 lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
1784 udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
1786 lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN);
1788 lvid->descTag.descCRC = cpu_to_le16(
1789 crc_itu_t(0, (char *)lvid + sizeof(struct tag),
1790 le16_to_cpu(lvid->descTag.descCRCLength)));
1792 lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
1793 mark_buffer_dirty(bh);
1794 sbi->s_lvid_dirty = 0;
1797 static void udf_close_lvid(struct super_block *sb)
1799 struct udf_sb_info *sbi = UDF_SB(sb);
1800 struct buffer_head *bh = sbi->s_lvid_bh;
1801 struct logicalVolIntegrityDesc *lvid;
1802 struct logicalVolIntegrityDescImpUse *lvidiu;
1807 lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
1808 lvidiu = udf_sb_lvidiu(sbi);
1809 lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
1810 lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
1811 udf_time_to_disk_stamp(&lvid->recordingDateAndTime, CURRENT_TIME);
1812 if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
1813 lvidiu->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
1814 if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
1815 lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
1816 if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
1817 lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
1818 lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
1820 lvid->descTag.descCRC = cpu_to_le16(
1821 crc_itu_t(0, (char *)lvid + sizeof(struct tag),
1822 le16_to_cpu(lvid->descTag.descCRCLength)));
1824 lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
1825 mark_buffer_dirty(bh);
1826 sbi->s_lvid_dirty = 0;
1829 static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
1832 int nr_groups = bitmap->s_nr_groups;
1833 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) *
1836 for (i = 0; i < nr_groups; i++)
1837 if (bitmap->s_block_bitmap[i])
1838 brelse(bitmap->s_block_bitmap[i]);
1840 if (size <= PAGE_SIZE)
1846 static void udf_free_partition(struct udf_part_map *map)
1849 struct udf_meta_data *mdata;
1851 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
1852 iput(map->s_uspace.s_table);
1853 if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
1854 iput(map->s_fspace.s_table);
1855 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
1856 udf_sb_free_bitmap(map->s_uspace.s_bitmap);
1857 if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
1858 udf_sb_free_bitmap(map->s_fspace.s_bitmap);
1859 if (map->s_partition_type == UDF_SPARABLE_MAP15)
1860 for (i = 0; i < 4; i++)
1861 brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
1862 else if (map->s_partition_type == UDF_METADATA_MAP25) {
1863 mdata = &map->s_type_specific.s_metadata;
1864 iput(mdata->s_metadata_fe);
1865 mdata->s_metadata_fe = NULL;
1867 iput(mdata->s_mirror_fe);
1868 mdata->s_mirror_fe = NULL;
1870 iput(mdata->s_bitmap_fe);
1871 mdata->s_bitmap_fe = NULL;
1875 static int udf_fill_super(struct super_block *sb, void *options, int silent)
1879 struct inode *inode = NULL;
1880 struct udf_options uopt;
1881 struct kernel_lb_addr rootdir, fileset;
1882 struct udf_sb_info *sbi;
1884 uopt.flags = (1 << UDF_FLAG_USE_AD_IN_ICB) | (1 << UDF_FLAG_STRICT);
1888 uopt.fmode = UDF_INVALID_MODE;
1889 uopt.dmode = UDF_INVALID_MODE;
1891 sbi = kzalloc(sizeof(struct udf_sb_info), GFP_KERNEL);
1895 sb->s_fs_info = sbi;
1897 mutex_init(&sbi->s_alloc_mutex);
1899 if (!udf_parse_options((char *)options, &uopt, false))
1902 if (uopt.flags & (1 << UDF_FLAG_UTF8) &&
1903 uopt.flags & (1 << UDF_FLAG_NLS_MAP)) {
1904 udf_error(sb, "udf_read_super",
1905 "utf8 cannot be combined with iocharset\n");
1908 #ifdef CONFIG_UDF_NLS
1909 if ((uopt.flags & (1 << UDF_FLAG_NLS_MAP)) && !uopt.nls_map) {
1910 uopt.nls_map = load_nls_default();
1912 uopt.flags &= ~(1 << UDF_FLAG_NLS_MAP);
1914 udf_debug("Using default NLS map\n");
1917 if (!(uopt.flags & (1 << UDF_FLAG_NLS_MAP)))
1918 uopt.flags |= (1 << UDF_FLAG_UTF8);
1920 fileset.logicalBlockNum = 0xFFFFFFFF;
1921 fileset.partitionReferenceNum = 0xFFFF;
1923 sbi->s_flags = uopt.flags;
1924 sbi->s_uid = uopt.uid;
1925 sbi->s_gid = uopt.gid;
1926 sbi->s_umask = uopt.umask;
1927 sbi->s_fmode = uopt.fmode;
1928 sbi->s_dmode = uopt.dmode;
1929 sbi->s_nls_map = uopt.nls_map;
1931 if (uopt.session == 0xFFFFFFFF)
1932 sbi->s_session = udf_get_last_session(sb);
1934 sbi->s_session = uopt.session;
1936 udf_debug("Multi-session=%d\n", sbi->s_session);
1938 /* Fill in the rest of the superblock */
1939 sb->s_op = &udf_sb_ops;
1940 sb->s_export_op = &udf_export_ops;
1943 sb->s_magic = UDF_SUPER_MAGIC;
1944 sb->s_time_gran = 1000;
1946 if (uopt.flags & (1 << UDF_FLAG_BLOCKSIZE_SET)) {
1947 ret = udf_load_vrs(sb, &uopt, silent, &fileset);
1949 uopt.blocksize = bdev_logical_block_size(sb->s_bdev);
1950 ret = udf_load_vrs(sb, &uopt, silent, &fileset);
1951 if (!ret && uopt.blocksize != UDF_DEFAULT_BLOCKSIZE) {
1954 "UDF-fs: Rescanning with blocksize "
1955 "%d\n", UDF_DEFAULT_BLOCKSIZE);
1956 uopt.blocksize = UDF_DEFAULT_BLOCKSIZE;
1957 ret = udf_load_vrs(sb, &uopt, silent, &fileset);
1961 printk(KERN_WARNING "UDF-fs: No partition found (1)\n");
1965 udf_debug("Lastblock=%d\n", sbi->s_last_block);
1967 if (sbi->s_lvid_bh) {
1968 struct logicalVolIntegrityDescImpUse *lvidiu =
1970 uint16_t minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
1971 uint16_t minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
1972 /* uint16_t maxUDFWriteRev =
1973 le16_to_cpu(lvidiu->maxUDFWriteRev); */
1975 if (minUDFReadRev > UDF_MAX_READ_VERSION) {
1976 printk(KERN_ERR "UDF-fs: minUDFReadRev=%x "
1978 le16_to_cpu(lvidiu->minUDFReadRev),
1979 UDF_MAX_READ_VERSION);
1981 } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
1982 sb->s_flags |= MS_RDONLY;
1984 sbi->s_udfrev = minUDFWriteRev;
1986 if (minUDFReadRev >= UDF_VERS_USE_EXTENDED_FE)
1987 UDF_SET_FLAG(sb, UDF_FLAG_USE_EXTENDED_FE);
1988 if (minUDFReadRev >= UDF_VERS_USE_STREAMS)
1989 UDF_SET_FLAG(sb, UDF_FLAG_USE_STREAMS);
1992 if (!sbi->s_partitions) {
1993 printk(KERN_WARNING "UDF-fs: No partition found (2)\n");
1997 if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
1998 UDF_PART_FLAG_READ_ONLY) {
1999 printk(KERN_NOTICE "UDF-fs: Partition marked readonly; "
2000 "forcing readonly mount\n");
2001 sb->s_flags |= MS_RDONLY;
2004 if (udf_find_fileset(sb, &fileset, &rootdir)) {
2005 printk(KERN_WARNING "UDF-fs: No fileset found\n");
2010 struct timestamp ts;
2011 udf_time_to_disk_stamp(&ts, sbi->s_record_time);
2012 udf_info("UDF: Mounting volume '%s', "
2013 "timestamp %04u/%02u/%02u %02u:%02u (%x)\n",
2014 sbi->s_volume_ident, le16_to_cpu(ts.year), ts.month, ts.day,
2015 ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone));
2017 if (!(sb->s_flags & MS_RDONLY))
2020 /* Assign the root inode */
2021 /* assign inodes by physical block number */
2022 /* perhaps it's not extensible enough, but for now ... */
2023 inode = udf_iget(sb, &rootdir);
2025 printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, "
2027 rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
2031 /* Allocate a dentry for the root inode */
2032 sb->s_root = d_alloc_root(inode);
2034 printk(KERN_ERR "UDF-fs: Couldn't allocate root dentry\n");
2038 sb->s_maxbytes = MAX_LFS_FILESIZE;
2042 if (sbi->s_vat_inode)
2043 iput(sbi->s_vat_inode);
2044 if (sbi->s_partitions)
2045 for (i = 0; i < sbi->s_partitions; i++)
2046 udf_free_partition(&sbi->s_partmaps[i]);
2047 #ifdef CONFIG_UDF_NLS
2048 if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
2049 unload_nls(sbi->s_nls_map);
2051 if (!(sb->s_flags & MS_RDONLY))
2053 brelse(sbi->s_lvid_bh);
2055 kfree(sbi->s_partmaps);
2057 sb->s_fs_info = NULL;
2062 static void udf_error(struct super_block *sb, const char *function,
2063 const char *fmt, ...)
2067 if (!(sb->s_flags & MS_RDONLY)) {
2071 va_start(args, fmt);
2072 vsnprintf(error_buf, sizeof(error_buf), fmt, args);
2074 printk(KERN_CRIT "UDF-fs error (device %s): %s: %s\n",
2075 sb->s_id, function, error_buf);
2078 void udf_warning(struct super_block *sb, const char *function,
2079 const char *fmt, ...)
2083 va_start(args, fmt);
2084 vsnprintf(error_buf, sizeof(error_buf), fmt, args);
2086 printk(KERN_WARNING "UDF-fs warning (device %s): %s: %s\n",
2087 sb->s_id, function, error_buf);
2090 static void udf_put_super(struct super_block *sb)
2093 struct udf_sb_info *sbi;
2099 if (sbi->s_vat_inode)
2100 iput(sbi->s_vat_inode);
2101 if (sbi->s_partitions)
2102 for (i = 0; i < sbi->s_partitions; i++)
2103 udf_free_partition(&sbi->s_partmaps[i]);
2104 #ifdef CONFIG_UDF_NLS
2105 if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
2106 unload_nls(sbi->s_nls_map);
2108 if (!(sb->s_flags & MS_RDONLY))
2110 brelse(sbi->s_lvid_bh);
2111 kfree(sbi->s_partmaps);
2112 kfree(sb->s_fs_info);
2113 sb->s_fs_info = NULL;
2118 static int udf_sync_fs(struct super_block *sb, int wait)
2120 struct udf_sb_info *sbi = UDF_SB(sb);
2122 mutex_lock(&sbi->s_alloc_mutex);
2123 if (sbi->s_lvid_dirty) {
2125 * Blockdevice will be synced later so we don't have to submit
2128 mark_buffer_dirty(sbi->s_lvid_bh);
2130 sbi->s_lvid_dirty = 0;
2132 mutex_unlock(&sbi->s_alloc_mutex);
2137 static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
2139 struct super_block *sb = dentry->d_sb;
2140 struct udf_sb_info *sbi = UDF_SB(sb);
2141 struct logicalVolIntegrityDescImpUse *lvidiu;
2142 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
2144 if (sbi->s_lvid_bh != NULL)
2145 lvidiu = udf_sb_lvidiu(sbi);
2149 buf->f_type = UDF_SUPER_MAGIC;
2150 buf->f_bsize = sb->s_blocksize;
2151 buf->f_blocks = sbi->s_partmaps[sbi->s_partition].s_partition_len;
2152 buf->f_bfree = udf_count_free(sb);
2153 buf->f_bavail = buf->f_bfree;
2154 buf->f_files = (lvidiu != NULL ? (le32_to_cpu(lvidiu->numFiles) +
2155 le32_to_cpu(lvidiu->numDirs)) : 0)
2157 buf->f_ffree = buf->f_bfree;
2158 buf->f_namelen = UDF_NAME_LEN - 2;
2159 buf->f_fsid.val[0] = (u32)id;
2160 buf->f_fsid.val[1] = (u32)(id >> 32);
2165 static unsigned int udf_count_free_bitmap(struct super_block *sb,
2166 struct udf_bitmap *bitmap)
2168 struct buffer_head *bh = NULL;
2169 unsigned int accum = 0;
2171 int block = 0, newblock;
2172 struct kernel_lb_addr loc;
2176 struct spaceBitmapDesc *bm;
2180 loc.logicalBlockNum = bitmap->s_extPosition;
2181 loc.partitionReferenceNum = UDF_SB(sb)->s_partition;
2182 bh = udf_read_ptagged(sb, &loc, 0, &ident);
2185 printk(KERN_ERR "udf: udf_count_free failed\n");
2187 } else if (ident != TAG_IDENT_SBD) {
2189 printk(KERN_ERR "udf: udf_count_free failed\n");
2193 bm = (struct spaceBitmapDesc *)bh->b_data;
2194 bytes = le32_to_cpu(bm->numOfBytes);
2195 index = sizeof(struct spaceBitmapDesc); /* offset in first block only */
2196 ptr = (uint8_t *)bh->b_data;
2199 u32 cur_bytes = min_t(u32, bytes, sb->s_blocksize - index);
2200 accum += bitmap_weight((const unsigned long *)(ptr + index),
2205 newblock = udf_get_lb_pblock(sb, &loc, ++block);
2206 bh = udf_tread(sb, newblock);
2208 udf_debug("read failed\n");
2212 ptr = (uint8_t *)bh->b_data;
2223 static unsigned int udf_count_free_table(struct super_block *sb,
2224 struct inode *table)
2226 unsigned int accum = 0;
2228 struct kernel_lb_addr eloc;
2230 struct extent_position epos;
2234 epos.block = UDF_I(table)->i_location;
2235 epos.offset = sizeof(struct unallocSpaceEntry);
2238 while ((etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1)
2239 accum += (elen >> table->i_sb->s_blocksize_bits);
2248 static unsigned int udf_count_free(struct super_block *sb)
2250 unsigned int accum = 0;
2251 struct udf_sb_info *sbi;
2252 struct udf_part_map *map;
2255 if (sbi->s_lvid_bh) {
2256 struct logicalVolIntegrityDesc *lvid =
2257 (struct logicalVolIntegrityDesc *)
2258 sbi->s_lvid_bh->b_data;
2259 if (le32_to_cpu(lvid->numOfPartitions) > sbi->s_partition) {
2260 accum = le32_to_cpu(
2261 lvid->freeSpaceTable[sbi->s_partition]);
2262 if (accum == 0xFFFFFFFF)
2270 map = &sbi->s_partmaps[sbi->s_partition];
2271 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
2272 accum += udf_count_free_bitmap(sb,
2273 map->s_uspace.s_bitmap);
2275 if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
2276 accum += udf_count_free_bitmap(sb,
2277 map->s_fspace.s_bitmap);
2282 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
2283 accum += udf_count_free_table(sb,
2284 map->s_uspace.s_table);
2286 if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
2287 accum += udf_count_free_table(sb,
2288 map->s_fspace.s_table);