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 struct dentry *udf_mount(struct file_system_type *fs_type,
111 int flags, const char *dev_name, void *data)
113 return mount_bdev(fs_type, flags, dev_name, data, udf_fill_super);
116 static struct file_system_type udf_fstype = {
117 .owner = THIS_MODULE,
120 .kill_sb = kill_block_super,
121 .fs_flags = FS_REQUIRES_DEV,
124 static struct kmem_cache *udf_inode_cachep;
126 static struct inode *udf_alloc_inode(struct super_block *sb)
128 struct udf_inode_info *ei;
129 ei = kmem_cache_alloc(udf_inode_cachep, GFP_KERNEL);
134 ei->i_lenExtents = 0;
135 ei->i_next_alloc_block = 0;
136 ei->i_next_alloc_goal = 0;
139 return &ei->vfs_inode;
142 static void udf_i_callback(struct rcu_head *head)
144 struct inode *inode = container_of(head, struct inode, i_rcu);
145 INIT_LIST_HEAD(&inode->i_dentry);
146 kmem_cache_free(udf_inode_cachep, UDF_I(inode));
149 static void udf_destroy_inode(struct inode *inode)
151 call_rcu(&inode->i_rcu, udf_i_callback);
154 static void init_once(void *foo)
156 struct udf_inode_info *ei = (struct udf_inode_info *)foo;
158 ei->i_ext.i_data = NULL;
159 inode_init_once(&ei->vfs_inode);
162 static int init_inodecache(void)
164 udf_inode_cachep = kmem_cache_create("udf_inode_cache",
165 sizeof(struct udf_inode_info),
166 0, (SLAB_RECLAIM_ACCOUNT |
169 if (!udf_inode_cachep)
174 static void destroy_inodecache(void)
176 kmem_cache_destroy(udf_inode_cachep);
179 /* Superblock operations */
180 static const struct super_operations udf_sb_ops = {
181 .alloc_inode = udf_alloc_inode,
182 .destroy_inode = udf_destroy_inode,
183 .write_inode = udf_write_inode,
184 .evict_inode = udf_evict_inode,
185 .put_super = udf_put_super,
186 .sync_fs = udf_sync_fs,
187 .statfs = udf_statfs,
188 .remount_fs = udf_remount_fs,
189 .show_options = udf_show_options,
194 unsigned int blocksize;
195 unsigned int session;
196 unsigned int lastblock;
199 unsigned short partition;
200 unsigned int fileset;
201 unsigned int rootdir;
208 struct nls_table *nls_map;
211 static int __init init_udf_fs(void)
215 err = init_inodecache();
218 err = register_filesystem(&udf_fstype);
225 destroy_inodecache();
231 static void __exit exit_udf_fs(void)
233 unregister_filesystem(&udf_fstype);
234 destroy_inodecache();
237 module_init(init_udf_fs)
238 module_exit(exit_udf_fs)
240 static int udf_sb_alloc_partition_maps(struct super_block *sb, u32 count)
242 struct udf_sb_info *sbi = UDF_SB(sb);
244 sbi->s_partmaps = kcalloc(count, sizeof(struct udf_part_map),
246 if (!sbi->s_partmaps) {
247 udf_error(sb, __func__,
248 "Unable to allocate space for %d partition maps",
250 sbi->s_partitions = 0;
254 sbi->s_partitions = count;
258 static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt)
260 struct super_block *sb = mnt->mnt_sb;
261 struct udf_sb_info *sbi = UDF_SB(sb);
263 if (!UDF_QUERY_FLAG(sb, UDF_FLAG_STRICT))
264 seq_puts(seq, ",nostrict");
265 if (UDF_QUERY_FLAG(sb, UDF_FLAG_BLOCKSIZE_SET))
266 seq_printf(seq, ",bs=%lu", sb->s_blocksize);
267 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
268 seq_puts(seq, ",unhide");
269 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
270 seq_puts(seq, ",undelete");
271 if (!UDF_QUERY_FLAG(sb, UDF_FLAG_USE_AD_IN_ICB))
272 seq_puts(seq, ",noadinicb");
273 if (UDF_QUERY_FLAG(sb, UDF_FLAG_USE_SHORT_AD))
274 seq_puts(seq, ",shortad");
275 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_FORGET))
276 seq_puts(seq, ",uid=forget");
277 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_IGNORE))
278 seq_puts(seq, ",uid=ignore");
279 if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_FORGET))
280 seq_puts(seq, ",gid=forget");
281 if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_IGNORE))
282 seq_puts(seq, ",gid=ignore");
283 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET))
284 seq_printf(seq, ",uid=%u", sbi->s_uid);
285 if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET))
286 seq_printf(seq, ",gid=%u", sbi->s_gid);
287 if (sbi->s_umask != 0)
288 seq_printf(seq, ",umask=%o", sbi->s_umask);
289 if (sbi->s_fmode != UDF_INVALID_MODE)
290 seq_printf(seq, ",mode=%o", sbi->s_fmode);
291 if (sbi->s_dmode != UDF_INVALID_MODE)
292 seq_printf(seq, ",dmode=%o", sbi->s_dmode);
293 if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET))
294 seq_printf(seq, ",session=%u", sbi->s_session);
295 if (UDF_QUERY_FLAG(sb, UDF_FLAG_LASTBLOCK_SET))
296 seq_printf(seq, ",lastblock=%u", sbi->s_last_block);
297 if (sbi->s_anchor != 0)
298 seq_printf(seq, ",anchor=%u", sbi->s_anchor);
300 * volume, partition, fileset and rootdir seem to be ignored
303 if (UDF_QUERY_FLAG(sb, UDF_FLAG_UTF8))
304 seq_puts(seq, ",utf8");
305 if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP) && sbi->s_nls_map)
306 seq_printf(seq, ",iocharset=%s", sbi->s_nls_map->charset);
315 * Parse mount options.
318 * The following mount options are supported:
320 * gid= Set the default group.
321 * umask= Set the default umask.
322 * mode= Set the default file permissions.
323 * dmode= Set the default directory permissions.
324 * uid= Set the default user.
325 * bs= Set the block size.
326 * unhide Show otherwise hidden files.
327 * undelete Show deleted files in lists.
328 * adinicb Embed data in the inode (default)
329 * noadinicb Don't embed data in the inode
330 * shortad Use short ad's
331 * longad Use long ad's (default)
332 * nostrict Unset strict conformance
333 * iocharset= Set the NLS character set
335 * The remaining are for debugging and disaster recovery:
337 * novrs Skip volume sequence recognition
339 * The following expect a offset from 0.
341 * session= Set the CDROM session (default= last session)
342 * anchor= Override standard anchor location. (default= 256)
343 * volume= Override the VolumeDesc location. (unused)
344 * partition= Override the PartitionDesc location. (unused)
345 * lastblock= Set the last block of the filesystem/
347 * The following expect a offset from the partition root.
349 * fileset= Override the fileset block location. (unused)
350 * rootdir= Override the root directory location. (unused)
351 * WARNING: overriding the rootdir to a non-directory may
352 * yield highly unpredictable results.
355 * options Pointer to mount options string.
356 * uopts Pointer to mount options variable.
359 * <return> 1 Mount options parsed okay.
360 * <return> 0 Error parsing mount options.
363 * July 1, 1997 - Andrew E. Mileski
364 * Written, tested, and released.
368 Opt_novrs, Opt_nostrict, Opt_bs, Opt_unhide, Opt_undelete,
369 Opt_noadinicb, Opt_adinicb, Opt_shortad, Opt_longad,
370 Opt_gid, Opt_uid, Opt_umask, Opt_session, Opt_lastblock,
371 Opt_anchor, Opt_volume, Opt_partition, Opt_fileset,
372 Opt_rootdir, Opt_utf8, Opt_iocharset,
373 Opt_err, Opt_uforget, Opt_uignore, Opt_gforget, Opt_gignore,
377 static const match_table_t tokens = {
378 {Opt_novrs, "novrs"},
379 {Opt_nostrict, "nostrict"},
381 {Opt_unhide, "unhide"},
382 {Opt_undelete, "undelete"},
383 {Opt_noadinicb, "noadinicb"},
384 {Opt_adinicb, "adinicb"},
385 {Opt_shortad, "shortad"},
386 {Opt_longad, "longad"},
387 {Opt_uforget, "uid=forget"},
388 {Opt_uignore, "uid=ignore"},
389 {Opt_gforget, "gid=forget"},
390 {Opt_gignore, "gid=ignore"},
393 {Opt_umask, "umask=%o"},
394 {Opt_session, "session=%u"},
395 {Opt_lastblock, "lastblock=%u"},
396 {Opt_anchor, "anchor=%u"},
397 {Opt_volume, "volume=%u"},
398 {Opt_partition, "partition=%u"},
399 {Opt_fileset, "fileset=%u"},
400 {Opt_rootdir, "rootdir=%u"},
402 {Opt_iocharset, "iocharset=%s"},
403 {Opt_fmode, "mode=%o"},
404 {Opt_dmode, "dmode=%o"},
408 static int udf_parse_options(char *options, struct udf_options *uopt,
415 uopt->partition = 0xFFFF;
416 uopt->session = 0xFFFFFFFF;
419 uopt->volume = 0xFFFFFFFF;
420 uopt->rootdir = 0xFFFFFFFF;
421 uopt->fileset = 0xFFFFFFFF;
422 uopt->nls_map = NULL;
427 while ((p = strsep(&options, ",")) != NULL) {
428 substring_t args[MAX_OPT_ARGS];
433 token = match_token(p, tokens, args);
439 if (match_int(&args[0], &option))
441 uopt->blocksize = option;
442 uopt->flags |= (1 << UDF_FLAG_BLOCKSIZE_SET);
445 uopt->flags |= (1 << UDF_FLAG_UNHIDE);
448 uopt->flags |= (1 << UDF_FLAG_UNDELETE);
451 uopt->flags &= ~(1 << UDF_FLAG_USE_AD_IN_ICB);
454 uopt->flags |= (1 << UDF_FLAG_USE_AD_IN_ICB);
457 uopt->flags |= (1 << UDF_FLAG_USE_SHORT_AD);
460 uopt->flags &= ~(1 << UDF_FLAG_USE_SHORT_AD);
463 if (match_int(args, &option))
466 uopt->flags |= (1 << UDF_FLAG_GID_SET);
469 if (match_int(args, &option))
472 uopt->flags |= (1 << UDF_FLAG_UID_SET);
475 if (match_octal(args, &option))
477 uopt->umask = option;
480 uopt->flags &= ~(1 << UDF_FLAG_STRICT);
483 if (match_int(args, &option))
485 uopt->session = option;
487 uopt->flags |= (1 << UDF_FLAG_SESSION_SET);
490 if (match_int(args, &option))
492 uopt->lastblock = option;
494 uopt->flags |= (1 << UDF_FLAG_LASTBLOCK_SET);
497 if (match_int(args, &option))
499 uopt->anchor = option;
502 if (match_int(args, &option))
504 uopt->volume = option;
507 if (match_int(args, &option))
509 uopt->partition = option;
512 if (match_int(args, &option))
514 uopt->fileset = option;
517 if (match_int(args, &option))
519 uopt->rootdir = option;
522 uopt->flags |= (1 << UDF_FLAG_UTF8);
524 #ifdef CONFIG_UDF_NLS
526 uopt->nls_map = load_nls(args[0].from);
527 uopt->flags |= (1 << UDF_FLAG_NLS_MAP);
531 uopt->flags |= (1 << UDF_FLAG_UID_IGNORE);
534 uopt->flags |= (1 << UDF_FLAG_UID_FORGET);
537 uopt->flags |= (1 << UDF_FLAG_GID_IGNORE);
540 uopt->flags |= (1 << UDF_FLAG_GID_FORGET);
543 if (match_octal(args, &option))
545 uopt->fmode = option & 0777;
548 if (match_octal(args, &option))
550 uopt->dmode = option & 0777;
553 printk(KERN_ERR "udf: bad mount option \"%s\" "
554 "or missing value\n", p);
561 static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
563 struct udf_options uopt;
564 struct udf_sb_info *sbi = UDF_SB(sb);
567 uopt.flags = sbi->s_flags;
568 uopt.uid = sbi->s_uid;
569 uopt.gid = sbi->s_gid;
570 uopt.umask = sbi->s_umask;
571 uopt.fmode = sbi->s_fmode;
572 uopt.dmode = sbi->s_dmode;
574 if (!udf_parse_options(options, &uopt, true))
578 sbi->s_flags = uopt.flags;
579 sbi->s_uid = uopt.uid;
580 sbi->s_gid = uopt.gid;
581 sbi->s_umask = uopt.umask;
582 sbi->s_fmode = uopt.fmode;
583 sbi->s_dmode = uopt.dmode;
585 if (sbi->s_lvid_bh) {
586 int write_rev = le16_to_cpu(udf_sb_lvidiu(sbi)->minUDFWriteRev);
587 if (write_rev > UDF_MAX_WRITE_VERSION)
591 if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
594 if (*flags & MS_RDONLY)
604 /* Check Volume Structure Descriptors (ECMA 167 2/9.1) */
605 /* We also check any "CD-ROM Volume Descriptor Set" (ECMA 167 2/8.3.1) */
606 static loff_t udf_check_vsd(struct super_block *sb)
608 struct volStructDesc *vsd = NULL;
609 loff_t sector = 32768;
611 struct buffer_head *bh = NULL;
614 struct udf_sb_info *sbi;
617 if (sb->s_blocksize < sizeof(struct volStructDesc))
618 sectorsize = sizeof(struct volStructDesc);
620 sectorsize = sb->s_blocksize;
622 sector += (sbi->s_session << sb->s_blocksize_bits);
624 udf_debug("Starting at sector %u (%ld byte sectors)\n",
625 (unsigned int)(sector >> sb->s_blocksize_bits),
627 /* Process the sequence (if applicable) */
628 for (; !nsr02 && !nsr03; sector += sectorsize) {
630 bh = udf_tread(sb, sector >> sb->s_blocksize_bits);
634 /* Look for ISO descriptors */
635 vsd = (struct volStructDesc *)(bh->b_data +
636 (sector & (sb->s_blocksize - 1)));
638 if (vsd->stdIdent[0] == 0) {
641 } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001,
643 switch (vsd->structType) {
645 udf_debug("ISO9660 Boot Record found\n");
648 udf_debug("ISO9660 Primary Volume Descriptor "
652 udf_debug("ISO9660 Supplementary Volume "
653 "Descriptor found\n");
656 udf_debug("ISO9660 Volume Partition Descriptor "
660 udf_debug("ISO9660 Volume Descriptor Set "
661 "Terminator found\n");
664 udf_debug("ISO9660 VRS (%u) found\n",
668 } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BEA01,
671 else if (!strncmp(vsd->stdIdent, VSD_STD_ID_TEA01,
675 } else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR02,
678 else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03,
688 else if (sector - (sbi->s_session << sb->s_blocksize_bits) == 32768)
694 static int udf_find_fileset(struct super_block *sb,
695 struct kernel_lb_addr *fileset,
696 struct kernel_lb_addr *root)
698 struct buffer_head *bh = NULL;
701 struct udf_sb_info *sbi;
703 if (fileset->logicalBlockNum != 0xFFFFFFFF ||
704 fileset->partitionReferenceNum != 0xFFFF) {
705 bh = udf_read_ptagged(sb, fileset, 0, &ident);
709 } else if (ident != TAG_IDENT_FSD) {
718 /* Search backwards through the partitions */
719 struct kernel_lb_addr newfileset;
721 /* --> cvg: FIXME - is it reasonable? */
724 for (newfileset.partitionReferenceNum = sbi->s_partitions - 1;
725 (newfileset.partitionReferenceNum != 0xFFFF &&
726 fileset->logicalBlockNum == 0xFFFFFFFF &&
727 fileset->partitionReferenceNum == 0xFFFF);
728 newfileset.partitionReferenceNum--) {
729 lastblock = sbi->s_partmaps
730 [newfileset.partitionReferenceNum]
732 newfileset.logicalBlockNum = 0;
735 bh = udf_read_ptagged(sb, &newfileset, 0,
738 newfileset.logicalBlockNum++;
745 struct spaceBitmapDesc *sp;
746 sp = (struct spaceBitmapDesc *)
748 newfileset.logicalBlockNum += 1 +
749 ((le32_to_cpu(sp->numOfBytes) +
750 sizeof(struct spaceBitmapDesc)
751 - 1) >> sb->s_blocksize_bits);
756 *fileset = newfileset;
759 newfileset.logicalBlockNum++;
764 } while (newfileset.logicalBlockNum < lastblock &&
765 fileset->logicalBlockNum == 0xFFFFFFFF &&
766 fileset->partitionReferenceNum == 0xFFFF);
770 if ((fileset->logicalBlockNum != 0xFFFFFFFF ||
771 fileset->partitionReferenceNum != 0xFFFF) && bh) {
772 udf_debug("Fileset at block=%d, partition=%d\n",
773 fileset->logicalBlockNum,
774 fileset->partitionReferenceNum);
776 sbi->s_partition = fileset->partitionReferenceNum;
777 udf_load_fileset(sb, bh, root);
784 static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
786 struct primaryVolDesc *pvoldesc;
787 struct ustr *instr, *outstr;
788 struct buffer_head *bh;
792 instr = kmalloc(sizeof(struct ustr), GFP_NOFS);
796 outstr = kmalloc(sizeof(struct ustr), GFP_NOFS);
800 bh = udf_read_tagged(sb, block, block, &ident);
804 BUG_ON(ident != TAG_IDENT_PVD);
806 pvoldesc = (struct primaryVolDesc *)bh->b_data;
808 if (udf_disk_stamp_to_time(&UDF_SB(sb)->s_record_time,
809 pvoldesc->recordingDateAndTime)) {
811 struct timestamp *ts = &pvoldesc->recordingDateAndTime;
812 udf_debug("recording time %04u/%02u/%02u"
814 le16_to_cpu(ts->year), ts->month, ts->day, ts->hour,
815 ts->minute, le16_to_cpu(ts->typeAndTimezone));
819 if (!udf_build_ustr(instr, pvoldesc->volIdent, 32))
820 if (udf_CS0toUTF8(outstr, instr)) {
821 strncpy(UDF_SB(sb)->s_volume_ident, outstr->u_name,
822 outstr->u_len > 31 ? 31 : outstr->u_len);
823 udf_debug("volIdent[] = '%s'\n",
824 UDF_SB(sb)->s_volume_ident);
827 if (!udf_build_ustr(instr, pvoldesc->volSetIdent, 128))
828 if (udf_CS0toUTF8(outstr, instr))
829 udf_debug("volSetIdent[] = '%s'\n", outstr->u_name);
840 static int udf_load_metadata_files(struct super_block *sb, int partition)
842 struct udf_sb_info *sbi = UDF_SB(sb);
843 struct udf_part_map *map;
844 struct udf_meta_data *mdata;
845 struct kernel_lb_addr addr;
848 map = &sbi->s_partmaps[partition];
849 mdata = &map->s_type_specific.s_metadata;
851 /* metadata address */
852 addr.logicalBlockNum = mdata->s_meta_file_loc;
853 addr.partitionReferenceNum = map->s_partition_num;
855 udf_debug("Metadata file location: block = %d part = %d\n",
856 addr.logicalBlockNum, addr.partitionReferenceNum);
858 mdata->s_metadata_fe = udf_iget(sb, &addr);
860 if (mdata->s_metadata_fe == NULL) {
861 udf_warning(sb, __func__, "metadata inode efe not found, "
862 "will try mirror inode.");
864 } else if (UDF_I(mdata->s_metadata_fe)->i_alloc_type !=
865 ICBTAG_FLAG_AD_SHORT) {
866 udf_warning(sb, __func__, "metadata inode efe does not have "
867 "short allocation descriptors!");
869 iput(mdata->s_metadata_fe);
870 mdata->s_metadata_fe = NULL;
873 /* mirror file entry */
874 addr.logicalBlockNum = mdata->s_mirror_file_loc;
875 addr.partitionReferenceNum = map->s_partition_num;
877 udf_debug("Mirror metadata file location: block = %d part = %d\n",
878 addr.logicalBlockNum, addr.partitionReferenceNum);
880 mdata->s_mirror_fe = udf_iget(sb, &addr);
882 if (mdata->s_mirror_fe == NULL) {
884 udf_error(sb, __func__, "mirror inode efe not found "
885 "and metadata inode is missing too, exiting...");
888 udf_warning(sb, __func__, "mirror inode efe not found,"
889 " but metadata inode is OK");
890 } else if (UDF_I(mdata->s_mirror_fe)->i_alloc_type !=
891 ICBTAG_FLAG_AD_SHORT) {
892 udf_warning(sb, __func__, "mirror inode efe does not have "
893 "short allocation descriptors!");
894 iput(mdata->s_mirror_fe);
895 mdata->s_mirror_fe = NULL;
903 * Load only if bitmap file location differs from 0xFFFFFFFF (DCN-5102)
905 if (mdata->s_bitmap_file_loc != 0xFFFFFFFF) {
906 addr.logicalBlockNum = mdata->s_bitmap_file_loc;
907 addr.partitionReferenceNum = map->s_partition_num;
909 udf_debug("Bitmap file location: block = %d part = %d\n",
910 addr.logicalBlockNum, addr.partitionReferenceNum);
912 mdata->s_bitmap_fe = udf_iget(sb, &addr);
914 if (mdata->s_bitmap_fe == NULL) {
915 if (sb->s_flags & MS_RDONLY)
916 udf_warning(sb, __func__, "bitmap inode efe "
917 "not found but it's ok since the disc"
918 " is mounted read-only");
920 udf_error(sb, __func__, "bitmap inode efe not "
921 "found and attempted read-write mount");
927 udf_debug("udf_load_metadata_files Ok\n");
935 static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
936 struct kernel_lb_addr *root)
938 struct fileSetDesc *fset;
940 fset = (struct fileSetDesc *)bh->b_data;
942 *root = lelb_to_cpu(fset->rootDirectoryICB.extLocation);
944 UDF_SB(sb)->s_serial_number = le16_to_cpu(fset->descTag.tagSerialNum);
946 udf_debug("Rootdir at block=%d, partition=%d\n",
947 root->logicalBlockNum, root->partitionReferenceNum);
950 int udf_compute_nr_groups(struct super_block *sb, u32 partition)
952 struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
953 return DIV_ROUND_UP(map->s_partition_len +
954 (sizeof(struct spaceBitmapDesc) << 3),
955 sb->s_blocksize * 8);
958 static struct udf_bitmap *udf_sb_alloc_bitmap(struct super_block *sb, u32 index)
960 struct udf_bitmap *bitmap;
964 nr_groups = udf_compute_nr_groups(sb, index);
965 size = sizeof(struct udf_bitmap) +
966 (sizeof(struct buffer_head *) * nr_groups);
968 if (size <= PAGE_SIZE)
969 bitmap = kmalloc(size, GFP_KERNEL);
971 bitmap = vmalloc(size); /* TODO: get rid of vmalloc */
973 if (bitmap == NULL) {
974 udf_error(sb, __func__,
975 "Unable to allocate space for bitmap "
976 "and %d buffer_head pointers", nr_groups);
980 memset(bitmap, 0x00, size);
981 bitmap->s_block_bitmap = (struct buffer_head **)(bitmap + 1);
982 bitmap->s_nr_groups = nr_groups;
986 static int udf_fill_partdesc_info(struct super_block *sb,
987 struct partitionDesc *p, int p_index)
989 struct udf_part_map *map;
990 struct udf_sb_info *sbi = UDF_SB(sb);
991 struct partitionHeaderDesc *phd;
993 map = &sbi->s_partmaps[p_index];
995 map->s_partition_len = le32_to_cpu(p->partitionLength); /* blocks */
996 map->s_partition_root = le32_to_cpu(p->partitionStartingLocation);
998 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
999 map->s_partition_flags |= UDF_PART_FLAG_READ_ONLY;
1000 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_WRITE_ONCE))
1001 map->s_partition_flags |= UDF_PART_FLAG_WRITE_ONCE;
1002 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_REWRITABLE))
1003 map->s_partition_flags |= UDF_PART_FLAG_REWRITABLE;
1004 if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
1005 map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
1007 udf_debug("Partition (%d type %x) starts at physical %d, "
1008 "block length %d\n", p_index,
1009 map->s_partition_type, map->s_partition_root,
1010 map->s_partition_len);
1012 if (strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR02) &&
1013 strcmp(p->partitionContents.ident, PD_PARTITION_CONTENTS_NSR03))
1016 phd = (struct partitionHeaderDesc *)p->partitionContentsUse;
1017 if (phd->unallocSpaceTable.extLength) {
1018 struct kernel_lb_addr loc = {
1019 .logicalBlockNum = le32_to_cpu(
1020 phd->unallocSpaceTable.extPosition),
1021 .partitionReferenceNum = p_index,
1024 map->s_uspace.s_table = udf_iget(sb, &loc);
1025 if (!map->s_uspace.s_table) {
1026 udf_debug("cannot load unallocSpaceTable (part %d)\n",
1030 map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
1031 udf_debug("unallocSpaceTable (part %d) @ %ld\n",
1032 p_index, map->s_uspace.s_table->i_ino);
1035 if (phd->unallocSpaceBitmap.extLength) {
1036 struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
1039 map->s_uspace.s_bitmap = bitmap;
1040 bitmap->s_extLength = le32_to_cpu(
1041 phd->unallocSpaceBitmap.extLength);
1042 bitmap->s_extPosition = le32_to_cpu(
1043 phd->unallocSpaceBitmap.extPosition);
1044 map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
1045 udf_debug("unallocSpaceBitmap (part %d) @ %d\n", p_index,
1046 bitmap->s_extPosition);
1049 if (phd->partitionIntegrityTable.extLength)
1050 udf_debug("partitionIntegrityTable (part %d)\n", p_index);
1052 if (phd->freedSpaceTable.extLength) {
1053 struct kernel_lb_addr loc = {
1054 .logicalBlockNum = le32_to_cpu(
1055 phd->freedSpaceTable.extPosition),
1056 .partitionReferenceNum = p_index,
1059 map->s_fspace.s_table = udf_iget(sb, &loc);
1060 if (!map->s_fspace.s_table) {
1061 udf_debug("cannot load freedSpaceTable (part %d)\n",
1066 map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
1067 udf_debug("freedSpaceTable (part %d) @ %ld\n",
1068 p_index, map->s_fspace.s_table->i_ino);
1071 if (phd->freedSpaceBitmap.extLength) {
1072 struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
1075 map->s_fspace.s_bitmap = bitmap;
1076 bitmap->s_extLength = le32_to_cpu(
1077 phd->freedSpaceBitmap.extLength);
1078 bitmap->s_extPosition = le32_to_cpu(
1079 phd->freedSpaceBitmap.extPosition);
1080 map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
1081 udf_debug("freedSpaceBitmap (part %d) @ %d\n", p_index,
1082 bitmap->s_extPosition);
1087 static void udf_find_vat_block(struct super_block *sb, int p_index,
1088 int type1_index, sector_t start_block)
1090 struct udf_sb_info *sbi = UDF_SB(sb);
1091 struct udf_part_map *map = &sbi->s_partmaps[p_index];
1093 struct kernel_lb_addr ino;
1096 * VAT file entry is in the last recorded block. Some broken disks have
1097 * it a few blocks before so try a bit harder...
1099 ino.partitionReferenceNum = type1_index;
1100 for (vat_block = start_block;
1101 vat_block >= map->s_partition_root &&
1102 vat_block >= start_block - 3 &&
1103 !sbi->s_vat_inode; vat_block--) {
1104 ino.logicalBlockNum = vat_block - map->s_partition_root;
1105 sbi->s_vat_inode = udf_iget(sb, &ino);
1109 static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
1111 struct udf_sb_info *sbi = UDF_SB(sb);
1112 struct udf_part_map *map = &sbi->s_partmaps[p_index];
1113 struct buffer_head *bh = NULL;
1114 struct udf_inode_info *vati;
1116 struct virtualAllocationTable20 *vat20;
1117 sector_t blocks = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;
1119 udf_find_vat_block(sb, p_index, type1_index, sbi->s_last_block);
1120 if (!sbi->s_vat_inode &&
1121 sbi->s_last_block != blocks - 1) {
1122 printk(KERN_NOTICE "UDF-fs: Failed to read VAT inode from the"
1123 " last recorded block (%lu), retrying with the last "
1124 "block of the device (%lu).\n",
1125 (unsigned long)sbi->s_last_block,
1126 (unsigned long)blocks - 1);
1127 udf_find_vat_block(sb, p_index, type1_index, blocks - 1);
1129 if (!sbi->s_vat_inode)
1132 if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
1133 map->s_type_specific.s_virtual.s_start_offset = 0;
1134 map->s_type_specific.s_virtual.s_num_entries =
1135 (sbi->s_vat_inode->i_size - 36) >> 2;
1136 } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
1137 vati = UDF_I(sbi->s_vat_inode);
1138 if (vati->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
1139 pos = udf_block_map(sbi->s_vat_inode, 0);
1140 bh = sb_bread(sb, pos);
1143 vat20 = (struct virtualAllocationTable20 *)bh->b_data;
1145 vat20 = (struct virtualAllocationTable20 *)
1149 map->s_type_specific.s_virtual.s_start_offset =
1150 le16_to_cpu(vat20->lengthHeader);
1151 map->s_type_specific.s_virtual.s_num_entries =
1152 (sbi->s_vat_inode->i_size -
1153 map->s_type_specific.s_virtual.
1154 s_start_offset) >> 2;
1160 static int udf_load_partdesc(struct super_block *sb, sector_t block)
1162 struct buffer_head *bh;
1163 struct partitionDesc *p;
1164 struct udf_part_map *map;
1165 struct udf_sb_info *sbi = UDF_SB(sb);
1167 uint16_t partitionNumber;
1171 bh = udf_read_tagged(sb, block, block, &ident);
1174 if (ident != TAG_IDENT_PD)
1177 p = (struct partitionDesc *)bh->b_data;
1178 partitionNumber = le16_to_cpu(p->partitionNumber);
1180 /* First scan for TYPE1, SPARABLE and METADATA partitions */
1181 for (i = 0; i < sbi->s_partitions; i++) {
1182 map = &sbi->s_partmaps[i];
1183 udf_debug("Searching map: (%d == %d)\n",
1184 map->s_partition_num, partitionNumber);
1185 if (map->s_partition_num == partitionNumber &&
1186 (map->s_partition_type == UDF_TYPE1_MAP15 ||
1187 map->s_partition_type == UDF_SPARABLE_MAP15))
1191 if (i >= sbi->s_partitions) {
1192 udf_debug("Partition (%d) not found in partition map\n",
1197 ret = udf_fill_partdesc_info(sb, p, i);
1200 * Now rescan for VIRTUAL or METADATA partitions when SPARABLE and
1201 * PHYSICAL partitions are already set up
1204 for (i = 0; i < sbi->s_partitions; i++) {
1205 map = &sbi->s_partmaps[i];
1207 if (map->s_partition_num == partitionNumber &&
1208 (map->s_partition_type == UDF_VIRTUAL_MAP15 ||
1209 map->s_partition_type == UDF_VIRTUAL_MAP20 ||
1210 map->s_partition_type == UDF_METADATA_MAP25))
1214 if (i >= sbi->s_partitions)
1217 ret = udf_fill_partdesc_info(sb, p, i);
1221 if (map->s_partition_type == UDF_METADATA_MAP25) {
1222 ret = udf_load_metadata_files(sb, i);
1224 printk(KERN_ERR "UDF-fs: error loading MetaData "
1225 "partition map %d\n", i);
1229 ret = udf_load_vat(sb, i, type1_idx);
1233 * Mark filesystem read-only if we have a partition with
1234 * virtual map since we don't handle writing to it (we
1235 * overwrite blocks instead of relocating them).
1237 sb->s_flags |= MS_RDONLY;
1238 printk(KERN_NOTICE "UDF-fs: Filesystem marked read-only "
1239 "because writing to pseudooverwrite partition is "
1240 "not implemented.\n");
1243 /* In case loading failed, we handle cleanup in udf_fill_super */
1248 static int udf_load_logicalvol(struct super_block *sb, sector_t block,
1249 struct kernel_lb_addr *fileset)
1251 struct logicalVolDesc *lvd;
1254 struct udf_sb_info *sbi = UDF_SB(sb);
1255 struct genericPartitionMap *gpm;
1257 struct buffer_head *bh;
1260 bh = udf_read_tagged(sb, block, block, &ident);
1263 BUG_ON(ident != TAG_IDENT_LVD);
1264 lvd = (struct logicalVolDesc *)bh->b_data;
1266 i = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps));
1272 for (i = 0, offset = 0;
1273 i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength);
1274 i++, offset += gpm->partitionMapLength) {
1275 struct udf_part_map *map = &sbi->s_partmaps[i];
1276 gpm = (struct genericPartitionMap *)
1277 &(lvd->partitionMaps[offset]);
1278 type = gpm->partitionMapType;
1280 struct genericPartitionMap1 *gpm1 =
1281 (struct genericPartitionMap1 *)gpm;
1282 map->s_partition_type = UDF_TYPE1_MAP15;
1283 map->s_volumeseqnum = le16_to_cpu(gpm1->volSeqNum);
1284 map->s_partition_num = le16_to_cpu(gpm1->partitionNum);
1285 map->s_partition_func = NULL;
1286 } else if (type == 2) {
1287 struct udfPartitionMap2 *upm2 =
1288 (struct udfPartitionMap2 *)gpm;
1289 if (!strncmp(upm2->partIdent.ident, UDF_ID_VIRTUAL,
1290 strlen(UDF_ID_VIRTUAL))) {
1292 le16_to_cpu(((__le16 *)upm2->partIdent.
1295 map->s_partition_type =
1297 map->s_partition_func =
1298 udf_get_pblock_virt15;
1300 map->s_partition_type =
1302 map->s_partition_func =
1303 udf_get_pblock_virt20;
1305 } else if (!strncmp(upm2->partIdent.ident,
1307 strlen(UDF_ID_SPARABLE))) {
1309 struct sparingTable *st;
1310 struct sparablePartitionMap *spm =
1311 (struct sparablePartitionMap *)gpm;
1313 map->s_partition_type = UDF_SPARABLE_MAP15;
1314 map->s_type_specific.s_sparing.s_packet_len =
1315 le16_to_cpu(spm->packetLength);
1316 for (j = 0; j < spm->numSparingTables; j++) {
1317 struct buffer_head *bh2;
1320 spm->locSparingTable[j]);
1321 bh2 = udf_read_tagged(sb, loc, loc,
1323 map->s_type_specific.s_sparing.
1324 s_spar_map[j] = bh2;
1329 st = (struct sparingTable *)bh2->b_data;
1330 if (ident != 0 || strncmp(
1331 st->sparingIdent.ident,
1333 strlen(UDF_ID_SPARING))) {
1335 map->s_type_specific.s_sparing.
1336 s_spar_map[j] = NULL;
1339 map->s_partition_func = udf_get_pblock_spar15;
1340 } else if (!strncmp(upm2->partIdent.ident,
1342 strlen(UDF_ID_METADATA))) {
1343 struct udf_meta_data *mdata =
1344 &map->s_type_specific.s_metadata;
1345 struct metadataPartitionMap *mdm =
1346 (struct metadataPartitionMap *)
1347 &(lvd->partitionMaps[offset]);
1348 udf_debug("Parsing Logical vol part %d "
1349 "type %d id=%s\n", i, type,
1352 map->s_partition_type = UDF_METADATA_MAP25;
1353 map->s_partition_func = udf_get_pblock_meta25;
1355 mdata->s_meta_file_loc =
1356 le32_to_cpu(mdm->metadataFileLoc);
1357 mdata->s_mirror_file_loc =
1358 le32_to_cpu(mdm->metadataMirrorFileLoc);
1359 mdata->s_bitmap_file_loc =
1360 le32_to_cpu(mdm->metadataBitmapFileLoc);
1361 mdata->s_alloc_unit_size =
1362 le32_to_cpu(mdm->allocUnitSize);
1363 mdata->s_align_unit_size =
1364 le16_to_cpu(mdm->alignUnitSize);
1365 mdata->s_dup_md_flag =
1368 udf_debug("Metadata Ident suffix=0x%x\n",
1371 mdm->partIdent.identSuffix)[0])));
1372 udf_debug("Metadata part num=%d\n",
1373 le16_to_cpu(mdm->partitionNum));
1374 udf_debug("Metadata part alloc unit size=%d\n",
1375 le32_to_cpu(mdm->allocUnitSize));
1376 udf_debug("Metadata file loc=%d\n",
1377 le32_to_cpu(mdm->metadataFileLoc));
1378 udf_debug("Mirror file loc=%d\n",
1379 le32_to_cpu(mdm->metadataMirrorFileLoc));
1380 udf_debug("Bitmap file loc=%d\n",
1381 le32_to_cpu(mdm->metadataBitmapFileLoc));
1382 udf_debug("Duplicate Flag: %d %d\n",
1383 mdata->s_dup_md_flag, mdm->flags);
1385 udf_debug("Unknown ident: %s\n",
1386 upm2->partIdent.ident);
1389 map->s_volumeseqnum = le16_to_cpu(upm2->volSeqNum);
1390 map->s_partition_num = le16_to_cpu(upm2->partitionNum);
1392 udf_debug("Partition (%d:%d) type %d on volume %d\n",
1393 i, map->s_partition_num, type,
1394 map->s_volumeseqnum);
1398 struct long_ad *la = (struct long_ad *)&(lvd->logicalVolContentsUse[0]);
1400 *fileset = lelb_to_cpu(la->extLocation);
1401 udf_debug("FileSet found in LogicalVolDesc at block=%d, "
1402 "partition=%d\n", fileset->logicalBlockNum,
1403 fileset->partitionReferenceNum);
1405 if (lvd->integritySeqExt.extLength)
1406 udf_load_logicalvolint(sb, leea_to_cpu(lvd->integritySeqExt));
1414 * udf_load_logicalvolint
1417 static void udf_load_logicalvolint(struct super_block *sb, struct kernel_extent_ad loc)
1419 struct buffer_head *bh = NULL;
1421 struct udf_sb_info *sbi = UDF_SB(sb);
1422 struct logicalVolIntegrityDesc *lvid;
1424 while (loc.extLength > 0 &&
1425 (bh = udf_read_tagged(sb, loc.extLocation,
1426 loc.extLocation, &ident)) &&
1427 ident == TAG_IDENT_LVID) {
1428 sbi->s_lvid_bh = bh;
1429 lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
1431 if (lvid->nextIntegrityExt.extLength)
1432 udf_load_logicalvolint(sb,
1433 leea_to_cpu(lvid->nextIntegrityExt));
1435 if (sbi->s_lvid_bh != bh)
1437 loc.extLength -= sb->s_blocksize;
1440 if (sbi->s_lvid_bh != bh)
1445 * udf_process_sequence
1448 * Process a main/reserve volume descriptor sequence.
1451 * sb Pointer to _locked_ superblock.
1452 * block First block of first extent of the sequence.
1453 * lastblock Lastblock of first extent of the sequence.
1456 * July 1, 1997 - Andrew E. Mileski
1457 * Written, tested, and released.
1459 static noinline int udf_process_sequence(struct super_block *sb, long block,
1460 long lastblock, struct kernel_lb_addr *fileset)
1462 struct buffer_head *bh = NULL;
1463 struct udf_vds_record vds[VDS_POS_LENGTH];
1464 struct udf_vds_record *curr;
1465 struct generic_desc *gd;
1466 struct volDescPtr *vdp;
1470 long next_s = 0, next_e = 0;
1472 memset(vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH);
1475 * Read the main descriptor sequence and find which descriptors
1478 for (; (!done && block <= lastblock); block++) {
1480 bh = udf_read_tagged(sb, block, block, &ident);
1482 printk(KERN_ERR "udf: Block %Lu of volume descriptor "
1483 "sequence is corrupted or we could not read "
1484 "it.\n", (unsigned long long)block);
1488 /* Process each descriptor (ISO 13346 3/8.3-8.4) */
1489 gd = (struct generic_desc *)bh->b_data;
1490 vdsn = le32_to_cpu(gd->volDescSeqNum);
1492 case TAG_IDENT_PVD: /* ISO 13346 3/10.1 */
1493 curr = &vds[VDS_POS_PRIMARY_VOL_DESC];
1494 if (vdsn >= curr->volDescSeqNum) {
1495 curr->volDescSeqNum = vdsn;
1496 curr->block = block;
1499 case TAG_IDENT_VDP: /* ISO 13346 3/10.3 */
1500 curr = &vds[VDS_POS_VOL_DESC_PTR];
1501 if (vdsn >= curr->volDescSeqNum) {
1502 curr->volDescSeqNum = vdsn;
1503 curr->block = block;
1505 vdp = (struct volDescPtr *)bh->b_data;
1506 next_s = le32_to_cpu(
1507 vdp->nextVolDescSeqExt.extLocation);
1508 next_e = le32_to_cpu(
1509 vdp->nextVolDescSeqExt.extLength);
1510 next_e = next_e >> sb->s_blocksize_bits;
1514 case TAG_IDENT_IUVD: /* ISO 13346 3/10.4 */
1515 curr = &vds[VDS_POS_IMP_USE_VOL_DESC];
1516 if (vdsn >= curr->volDescSeqNum) {
1517 curr->volDescSeqNum = vdsn;
1518 curr->block = block;
1521 case TAG_IDENT_PD: /* ISO 13346 3/10.5 */
1522 curr = &vds[VDS_POS_PARTITION_DESC];
1524 curr->block = block;
1526 case TAG_IDENT_LVD: /* ISO 13346 3/10.6 */
1527 curr = &vds[VDS_POS_LOGICAL_VOL_DESC];
1528 if (vdsn >= curr->volDescSeqNum) {
1529 curr->volDescSeqNum = vdsn;
1530 curr->block = block;
1533 case TAG_IDENT_USD: /* ISO 13346 3/10.8 */
1534 curr = &vds[VDS_POS_UNALLOC_SPACE_DESC];
1535 if (vdsn >= curr->volDescSeqNum) {
1536 curr->volDescSeqNum = vdsn;
1537 curr->block = block;
1540 case TAG_IDENT_TD: /* ISO 13346 3/10.9 */
1541 vds[VDS_POS_TERMINATING_DESC].block = block;
1545 next_s = next_e = 0;
1553 * Now read interesting descriptors again and process them
1554 * in a suitable order
1556 if (!vds[VDS_POS_PRIMARY_VOL_DESC].block) {
1557 printk(KERN_ERR "udf: Primary Volume Descriptor not found!\n");
1560 if (udf_load_pvoldesc(sb, vds[VDS_POS_PRIMARY_VOL_DESC].block))
1563 if (vds[VDS_POS_LOGICAL_VOL_DESC].block && udf_load_logicalvol(sb,
1564 vds[VDS_POS_LOGICAL_VOL_DESC].block, fileset))
1567 if (vds[VDS_POS_PARTITION_DESC].block) {
1569 * We rescan the whole descriptor sequence to find
1570 * partition descriptor blocks and process them.
1572 for (block = vds[VDS_POS_PARTITION_DESC].block;
1573 block < vds[VDS_POS_TERMINATING_DESC].block;
1575 if (udf_load_partdesc(sb, block))
1582 static int udf_load_sequence(struct super_block *sb, struct buffer_head *bh,
1583 struct kernel_lb_addr *fileset)
1585 struct anchorVolDescPtr *anchor;
1586 long main_s, main_e, reserve_s, reserve_e;
1588 anchor = (struct anchorVolDescPtr *)bh->b_data;
1590 /* Locate the main sequence */
1591 main_s = le32_to_cpu(anchor->mainVolDescSeqExt.extLocation);
1592 main_e = le32_to_cpu(anchor->mainVolDescSeqExt.extLength);
1593 main_e = main_e >> sb->s_blocksize_bits;
1596 /* Locate the reserve sequence */
1597 reserve_s = le32_to_cpu(anchor->reserveVolDescSeqExt.extLocation);
1598 reserve_e = le32_to_cpu(anchor->reserveVolDescSeqExt.extLength);
1599 reserve_e = reserve_e >> sb->s_blocksize_bits;
1600 reserve_e += reserve_s;
1602 /* Process the main & reserve sequences */
1603 /* responsible for finding the PartitionDesc(s) */
1604 if (!udf_process_sequence(sb, main_s, main_e, fileset))
1606 return !udf_process_sequence(sb, reserve_s, reserve_e, fileset);
1610 * Check whether there is an anchor block in the given block and
1611 * load Volume Descriptor Sequence if so.
1613 static int udf_check_anchor_block(struct super_block *sb, sector_t block,
1614 struct kernel_lb_addr *fileset)
1616 struct buffer_head *bh;
1620 if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&
1621 udf_fixed_to_variable(block) >=
1622 sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
1625 bh = udf_read_tagged(sb, block, block, &ident);
1628 if (ident != TAG_IDENT_AVDP) {
1632 ret = udf_load_sequence(sb, bh, fileset);
1637 /* Search for an anchor volume descriptor pointer */
1638 static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock,
1639 struct kernel_lb_addr *fileset)
1643 struct udf_sb_info *sbi = UDF_SB(sb);
1646 /* First try user provided anchor */
1647 if (sbi->s_anchor) {
1648 if (udf_check_anchor_block(sb, sbi->s_anchor, fileset))
1652 * according to spec, anchor is in either:
1656 * however, if the disc isn't closed, it could be 512.
1658 if (udf_check_anchor_block(sb, sbi->s_session + 256, fileset))
1661 * The trouble is which block is the last one. Drives often misreport
1662 * this so we try various possibilities.
1664 last[last_count++] = lastblock;
1666 last[last_count++] = lastblock - 1;
1667 last[last_count++] = lastblock + 1;
1669 last[last_count++] = lastblock - 2;
1670 if (lastblock >= 150)
1671 last[last_count++] = lastblock - 150;
1672 if (lastblock >= 152)
1673 last[last_count++] = lastblock - 152;
1675 for (i = 0; i < last_count; i++) {
1676 if (last[i] >= sb->s_bdev->bd_inode->i_size >>
1677 sb->s_blocksize_bits)
1679 if (udf_check_anchor_block(sb, last[i], fileset))
1683 if (udf_check_anchor_block(sb, last[i] - 256, fileset))
1687 /* Finally try block 512 in case media is open */
1688 if (udf_check_anchor_block(sb, sbi->s_session + 512, fileset))
1694 * Find an anchor volume descriptor and load Volume Descriptor Sequence from
1695 * area specified by it. The function expects sbi->s_lastblock to be the last
1696 * block on the media.
1698 * Return 1 if ok, 0 if not found.
1701 static int udf_find_anchor(struct super_block *sb,
1702 struct kernel_lb_addr *fileset)
1705 struct udf_sb_info *sbi = UDF_SB(sb);
1707 lastblock = udf_scan_anchors(sb, sbi->s_last_block, fileset);
1711 /* No anchor found? Try VARCONV conversion of block numbers */
1712 UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
1713 /* Firstly, we try to not convert number of the last block */
1714 lastblock = udf_scan_anchors(sb,
1715 udf_variable_to_fixed(sbi->s_last_block),
1720 /* Secondly, we try with converted number of the last block */
1721 lastblock = udf_scan_anchors(sb, sbi->s_last_block, fileset);
1723 /* VARCONV didn't help. Clear it. */
1724 UDF_CLEAR_FLAG(sb, UDF_FLAG_VARCONV);
1728 sbi->s_last_block = lastblock;
1733 * Check Volume Structure Descriptor, find Anchor block and load Volume
1734 * Descriptor Sequence
1736 static int udf_load_vrs(struct super_block *sb, struct udf_options *uopt,
1737 int silent, struct kernel_lb_addr *fileset)
1739 struct udf_sb_info *sbi = UDF_SB(sb);
1742 if (!sb_set_blocksize(sb, uopt->blocksize)) {
1744 printk(KERN_WARNING "UDF-fs: Bad block size\n");
1747 sbi->s_last_block = uopt->lastblock;
1749 /* Check that it is NSR02 compliant */
1750 nsr_off = udf_check_vsd(sb);
1753 printk(KERN_WARNING "UDF-fs: No VRS found\n");
1757 udf_debug("Failed to read byte 32768. Assuming open "
1758 "disc. Skipping validity check\n");
1759 if (!sbi->s_last_block)
1760 sbi->s_last_block = udf_get_last_block(sb);
1762 udf_debug("Validity check skipped because of novrs option\n");
1765 /* Look for anchor block and load Volume Descriptor Sequence */
1766 sbi->s_anchor = uopt->anchor;
1767 if (!udf_find_anchor(sb, fileset)) {
1769 printk(KERN_WARNING "UDF-fs: No anchor found\n");
1775 static void udf_open_lvid(struct super_block *sb)
1777 struct udf_sb_info *sbi = UDF_SB(sb);
1778 struct buffer_head *bh = sbi->s_lvid_bh;
1779 struct logicalVolIntegrityDesc *lvid;
1780 struct logicalVolIntegrityDescImpUse *lvidiu;
1784 lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
1785 lvidiu = udf_sb_lvidiu(sbi);
1787 lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
1788 lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
1789 udf_time_to_disk_stamp(&lvid->recordingDateAndTime,
1791 lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_OPEN);
1793 lvid->descTag.descCRC = cpu_to_le16(
1794 crc_itu_t(0, (char *)lvid + sizeof(struct tag),
1795 le16_to_cpu(lvid->descTag.descCRCLength)));
1797 lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
1798 mark_buffer_dirty(bh);
1799 sbi->s_lvid_dirty = 0;
1802 static void udf_close_lvid(struct super_block *sb)
1804 struct udf_sb_info *sbi = UDF_SB(sb);
1805 struct buffer_head *bh = sbi->s_lvid_bh;
1806 struct logicalVolIntegrityDesc *lvid;
1807 struct logicalVolIntegrityDescImpUse *lvidiu;
1812 lvid = (struct logicalVolIntegrityDesc *)bh->b_data;
1813 lvidiu = udf_sb_lvidiu(sbi);
1814 lvidiu->impIdent.identSuffix[0] = UDF_OS_CLASS_UNIX;
1815 lvidiu->impIdent.identSuffix[1] = UDF_OS_ID_LINUX;
1816 udf_time_to_disk_stamp(&lvid->recordingDateAndTime, CURRENT_TIME);
1817 if (UDF_MAX_WRITE_VERSION > le16_to_cpu(lvidiu->maxUDFWriteRev))
1818 lvidiu->maxUDFWriteRev = cpu_to_le16(UDF_MAX_WRITE_VERSION);
1819 if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFReadRev))
1820 lvidiu->minUDFReadRev = cpu_to_le16(sbi->s_udfrev);
1821 if (sbi->s_udfrev > le16_to_cpu(lvidiu->minUDFWriteRev))
1822 lvidiu->minUDFWriteRev = cpu_to_le16(sbi->s_udfrev);
1823 lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
1825 lvid->descTag.descCRC = cpu_to_le16(
1826 crc_itu_t(0, (char *)lvid + sizeof(struct tag),
1827 le16_to_cpu(lvid->descTag.descCRCLength)));
1829 lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
1830 mark_buffer_dirty(bh);
1831 sbi->s_lvid_dirty = 0;
1834 static void udf_sb_free_bitmap(struct udf_bitmap *bitmap)
1837 int nr_groups = bitmap->s_nr_groups;
1838 int size = sizeof(struct udf_bitmap) + (sizeof(struct buffer_head *) *
1841 for (i = 0; i < nr_groups; i++)
1842 if (bitmap->s_block_bitmap[i])
1843 brelse(bitmap->s_block_bitmap[i]);
1845 if (size <= PAGE_SIZE)
1851 static void udf_free_partition(struct udf_part_map *map)
1854 struct udf_meta_data *mdata;
1856 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
1857 iput(map->s_uspace.s_table);
1858 if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
1859 iput(map->s_fspace.s_table);
1860 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
1861 udf_sb_free_bitmap(map->s_uspace.s_bitmap);
1862 if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
1863 udf_sb_free_bitmap(map->s_fspace.s_bitmap);
1864 if (map->s_partition_type == UDF_SPARABLE_MAP15)
1865 for (i = 0; i < 4; i++)
1866 brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
1867 else if (map->s_partition_type == UDF_METADATA_MAP25) {
1868 mdata = &map->s_type_specific.s_metadata;
1869 iput(mdata->s_metadata_fe);
1870 mdata->s_metadata_fe = NULL;
1872 iput(mdata->s_mirror_fe);
1873 mdata->s_mirror_fe = NULL;
1875 iput(mdata->s_bitmap_fe);
1876 mdata->s_bitmap_fe = NULL;
1880 static int udf_fill_super(struct super_block *sb, void *options, int silent)
1884 struct inode *inode = NULL;
1885 struct udf_options uopt;
1886 struct kernel_lb_addr rootdir, fileset;
1887 struct udf_sb_info *sbi;
1891 uopt.flags = (1 << UDF_FLAG_USE_AD_IN_ICB) | (1 << UDF_FLAG_STRICT);
1895 uopt.fmode = UDF_INVALID_MODE;
1896 uopt.dmode = UDF_INVALID_MODE;
1898 sbi = kzalloc(sizeof(struct udf_sb_info), GFP_KERNEL);
1904 sb->s_fs_info = sbi;
1906 mutex_init(&sbi->s_alloc_mutex);
1908 if (!udf_parse_options((char *)options, &uopt, false))
1911 if (uopt.flags & (1 << UDF_FLAG_UTF8) &&
1912 uopt.flags & (1 << UDF_FLAG_NLS_MAP)) {
1913 udf_error(sb, "udf_read_super",
1914 "utf8 cannot be combined with iocharset\n");
1917 #ifdef CONFIG_UDF_NLS
1918 if ((uopt.flags & (1 << UDF_FLAG_NLS_MAP)) && !uopt.nls_map) {
1919 uopt.nls_map = load_nls_default();
1921 uopt.flags &= ~(1 << UDF_FLAG_NLS_MAP);
1923 udf_debug("Using default NLS map\n");
1926 if (!(uopt.flags & (1 << UDF_FLAG_NLS_MAP)))
1927 uopt.flags |= (1 << UDF_FLAG_UTF8);
1929 fileset.logicalBlockNum = 0xFFFFFFFF;
1930 fileset.partitionReferenceNum = 0xFFFF;
1932 sbi->s_flags = uopt.flags;
1933 sbi->s_uid = uopt.uid;
1934 sbi->s_gid = uopt.gid;
1935 sbi->s_umask = uopt.umask;
1936 sbi->s_fmode = uopt.fmode;
1937 sbi->s_dmode = uopt.dmode;
1938 sbi->s_nls_map = uopt.nls_map;
1940 if (uopt.session == 0xFFFFFFFF)
1941 sbi->s_session = udf_get_last_session(sb);
1943 sbi->s_session = uopt.session;
1945 udf_debug("Multi-session=%d\n", sbi->s_session);
1947 /* Fill in the rest of the superblock */
1948 sb->s_op = &udf_sb_ops;
1949 sb->s_export_op = &udf_export_ops;
1952 sb->s_magic = UDF_SUPER_MAGIC;
1953 sb->s_time_gran = 1000;
1955 if (uopt.flags & (1 << UDF_FLAG_BLOCKSIZE_SET)) {
1956 ret = udf_load_vrs(sb, &uopt, silent, &fileset);
1958 uopt.blocksize = bdev_logical_block_size(sb->s_bdev);
1959 ret = udf_load_vrs(sb, &uopt, silent, &fileset);
1960 if (!ret && uopt.blocksize != UDF_DEFAULT_BLOCKSIZE) {
1963 "UDF-fs: Rescanning with blocksize "
1964 "%d\n", UDF_DEFAULT_BLOCKSIZE);
1965 uopt.blocksize = UDF_DEFAULT_BLOCKSIZE;
1966 ret = udf_load_vrs(sb, &uopt, silent, &fileset);
1970 printk(KERN_WARNING "UDF-fs: No partition found (1)\n");
1974 udf_debug("Lastblock=%d\n", sbi->s_last_block);
1976 if (sbi->s_lvid_bh) {
1977 struct logicalVolIntegrityDescImpUse *lvidiu =
1979 uint16_t minUDFReadRev = le16_to_cpu(lvidiu->minUDFReadRev);
1980 uint16_t minUDFWriteRev = le16_to_cpu(lvidiu->minUDFWriteRev);
1981 /* uint16_t maxUDFWriteRev =
1982 le16_to_cpu(lvidiu->maxUDFWriteRev); */
1984 if (minUDFReadRev > UDF_MAX_READ_VERSION) {
1985 printk(KERN_ERR "UDF-fs: minUDFReadRev=%x "
1987 le16_to_cpu(lvidiu->minUDFReadRev),
1988 UDF_MAX_READ_VERSION);
1990 } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
1991 sb->s_flags |= MS_RDONLY;
1993 sbi->s_udfrev = minUDFWriteRev;
1995 if (minUDFReadRev >= UDF_VERS_USE_EXTENDED_FE)
1996 UDF_SET_FLAG(sb, UDF_FLAG_USE_EXTENDED_FE);
1997 if (minUDFReadRev >= UDF_VERS_USE_STREAMS)
1998 UDF_SET_FLAG(sb, UDF_FLAG_USE_STREAMS);
2001 if (!sbi->s_partitions) {
2002 printk(KERN_WARNING "UDF-fs: No partition found (2)\n");
2006 if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
2007 UDF_PART_FLAG_READ_ONLY) {
2008 printk(KERN_NOTICE "UDF-fs: Partition marked readonly; "
2009 "forcing readonly mount\n");
2010 sb->s_flags |= MS_RDONLY;
2013 if (udf_find_fileset(sb, &fileset, &rootdir)) {
2014 printk(KERN_WARNING "UDF-fs: No fileset found\n");
2019 struct timestamp ts;
2020 udf_time_to_disk_stamp(&ts, sbi->s_record_time);
2021 udf_info("UDF: Mounting volume '%s', "
2022 "timestamp %04u/%02u/%02u %02u:%02u (%x)\n",
2023 sbi->s_volume_ident, le16_to_cpu(ts.year), ts.month, ts.day,
2024 ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone));
2026 if (!(sb->s_flags & MS_RDONLY))
2029 /* Assign the root inode */
2030 /* assign inodes by physical block number */
2031 /* perhaps it's not extensible enough, but for now ... */
2032 inode = udf_iget(sb, &rootdir);
2034 printk(KERN_ERR "UDF-fs: Error in udf_iget, block=%d, "
2036 rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
2040 /* Allocate a dentry for the root inode */
2041 sb->s_root = d_alloc_root(inode);
2043 printk(KERN_ERR "UDF-fs: Couldn't allocate root dentry\n");
2047 sb->s_maxbytes = MAX_LFS_FILESIZE;
2052 if (sbi->s_vat_inode)
2053 iput(sbi->s_vat_inode);
2054 if (sbi->s_partitions)
2055 for (i = 0; i < sbi->s_partitions; i++)
2056 udf_free_partition(&sbi->s_partmaps[i]);
2057 #ifdef CONFIG_UDF_NLS
2058 if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
2059 unload_nls(sbi->s_nls_map);
2061 if (!(sb->s_flags & MS_RDONLY))
2063 brelse(sbi->s_lvid_bh);
2065 kfree(sbi->s_partmaps);
2067 sb->s_fs_info = NULL;
2073 static void udf_error(struct super_block *sb, const char *function,
2074 const char *fmt, ...)
2078 if (!(sb->s_flags & MS_RDONLY)) {
2082 va_start(args, fmt);
2083 vsnprintf(error_buf, sizeof(error_buf), fmt, args);
2085 printk(KERN_CRIT "UDF-fs error (device %s): %s: %s\n",
2086 sb->s_id, function, error_buf);
2089 void udf_warning(struct super_block *sb, const char *function,
2090 const char *fmt, ...)
2094 va_start(args, fmt);
2095 vsnprintf(error_buf, sizeof(error_buf), fmt, args);
2097 printk(KERN_WARNING "UDF-fs warning (device %s): %s: %s\n",
2098 sb->s_id, function, error_buf);
2101 static void udf_put_super(struct super_block *sb)
2104 struct udf_sb_info *sbi;
2110 if (sbi->s_vat_inode)
2111 iput(sbi->s_vat_inode);
2112 if (sbi->s_partitions)
2113 for (i = 0; i < sbi->s_partitions; i++)
2114 udf_free_partition(&sbi->s_partmaps[i]);
2115 #ifdef CONFIG_UDF_NLS
2116 if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
2117 unload_nls(sbi->s_nls_map);
2119 if (!(sb->s_flags & MS_RDONLY))
2121 brelse(sbi->s_lvid_bh);
2122 kfree(sbi->s_partmaps);
2123 kfree(sb->s_fs_info);
2124 sb->s_fs_info = NULL;
2129 static int udf_sync_fs(struct super_block *sb, int wait)
2131 struct udf_sb_info *sbi = UDF_SB(sb);
2133 mutex_lock(&sbi->s_alloc_mutex);
2134 if (sbi->s_lvid_dirty) {
2136 * Blockdevice will be synced later so we don't have to submit
2139 mark_buffer_dirty(sbi->s_lvid_bh);
2141 sbi->s_lvid_dirty = 0;
2143 mutex_unlock(&sbi->s_alloc_mutex);
2148 static int udf_statfs(struct dentry *dentry, struct kstatfs *buf)
2150 struct super_block *sb = dentry->d_sb;
2151 struct udf_sb_info *sbi = UDF_SB(sb);
2152 struct logicalVolIntegrityDescImpUse *lvidiu;
2153 u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
2155 if (sbi->s_lvid_bh != NULL)
2156 lvidiu = udf_sb_lvidiu(sbi);
2160 buf->f_type = UDF_SUPER_MAGIC;
2161 buf->f_bsize = sb->s_blocksize;
2162 buf->f_blocks = sbi->s_partmaps[sbi->s_partition].s_partition_len;
2163 buf->f_bfree = udf_count_free(sb);
2164 buf->f_bavail = buf->f_bfree;
2165 buf->f_files = (lvidiu != NULL ? (le32_to_cpu(lvidiu->numFiles) +
2166 le32_to_cpu(lvidiu->numDirs)) : 0)
2168 buf->f_ffree = buf->f_bfree;
2169 buf->f_namelen = UDF_NAME_LEN - 2;
2170 buf->f_fsid.val[0] = (u32)id;
2171 buf->f_fsid.val[1] = (u32)(id >> 32);
2176 static unsigned int udf_count_free_bitmap(struct super_block *sb,
2177 struct udf_bitmap *bitmap)
2179 struct buffer_head *bh = NULL;
2180 unsigned int accum = 0;
2182 int block = 0, newblock;
2183 struct kernel_lb_addr loc;
2187 struct spaceBitmapDesc *bm;
2191 loc.logicalBlockNum = bitmap->s_extPosition;
2192 loc.partitionReferenceNum = UDF_SB(sb)->s_partition;
2193 bh = udf_read_ptagged(sb, &loc, 0, &ident);
2196 printk(KERN_ERR "udf: udf_count_free failed\n");
2198 } else if (ident != TAG_IDENT_SBD) {
2200 printk(KERN_ERR "udf: udf_count_free failed\n");
2204 bm = (struct spaceBitmapDesc *)bh->b_data;
2205 bytes = le32_to_cpu(bm->numOfBytes);
2206 index = sizeof(struct spaceBitmapDesc); /* offset in first block only */
2207 ptr = (uint8_t *)bh->b_data;
2210 u32 cur_bytes = min_t(u32, bytes, sb->s_blocksize - index);
2211 accum += bitmap_weight((const unsigned long *)(ptr + index),
2216 newblock = udf_get_lb_pblock(sb, &loc, ++block);
2217 bh = udf_tread(sb, newblock);
2219 udf_debug("read failed\n");
2223 ptr = (uint8_t *)bh->b_data;
2234 static unsigned int udf_count_free_table(struct super_block *sb,
2235 struct inode *table)
2237 unsigned int accum = 0;
2239 struct kernel_lb_addr eloc;
2241 struct extent_position epos;
2245 epos.block = UDF_I(table)->i_location;
2246 epos.offset = sizeof(struct unallocSpaceEntry);
2249 while ((etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1)
2250 accum += (elen >> table->i_sb->s_blocksize_bits);
2259 static unsigned int udf_count_free(struct super_block *sb)
2261 unsigned int accum = 0;
2262 struct udf_sb_info *sbi;
2263 struct udf_part_map *map;
2266 if (sbi->s_lvid_bh) {
2267 struct logicalVolIntegrityDesc *lvid =
2268 (struct logicalVolIntegrityDesc *)
2269 sbi->s_lvid_bh->b_data;
2270 if (le32_to_cpu(lvid->numOfPartitions) > sbi->s_partition) {
2271 accum = le32_to_cpu(
2272 lvid->freeSpaceTable[sbi->s_partition]);
2273 if (accum == 0xFFFFFFFF)
2281 map = &sbi->s_partmaps[sbi->s_partition];
2282 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP) {
2283 accum += udf_count_free_bitmap(sb,
2284 map->s_uspace.s_bitmap);
2286 if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
2287 accum += udf_count_free_bitmap(sb,
2288 map->s_fspace.s_bitmap);
2293 if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE) {
2294 accum += udf_count_free_table(sb,
2295 map->s_uspace.s_table);
2297 if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
2298 accum += udf_count_free_table(sb,
2299 map->s_fspace.s_table);