#include <linux/mount.h>
#include <linux/seq_file.h>
#include <linux/bitmap.h>
+#include <linux/crc-itu-t.h>
#include <asm/byteorder.h>
#include "udf_sb.h"
static int udf_remount_fs(struct super_block *, int *, char *);
static int udf_check_valid(struct super_block *, int, int);
static int udf_vrs(struct super_block *sb, int silent);
-static int udf_load_partition(struct super_block *, kernel_lb_addr *);
static void udf_load_logicalvolint(struct super_block *, kernel_extent_ad);
static void udf_find_anchor(struct super_block *);
static int udf_find_fileset(struct super_block *, kernel_lb_addr *,
sbi->s_partmaps = kcalloc(count, sizeof(struct udf_part_map),
GFP_KERNEL);
if (!sbi->s_partmaps) {
- udf_error(sb, __FUNCTION__,
+ udf_error(sb, __func__,
"Unable to allocate space for %d partition maps",
count);
sbi->s_partitions = 0;
static int udf_vrs(struct super_block *sb, int silent)
{
struct volStructDesc *vsd = NULL;
- int sector = 32768;
+ loff_t sector = 32768;
int sectorsize;
struct buffer_head *bh = NULL;
int iso9660 = 0;
sector += (sbi->s_session << sb->s_blocksize_bits);
udf_debug("Starting at sector %u (%ld byte sectors)\n",
- (sector >> sb->s_blocksize_bits), sb->s_blocksize);
+ (unsigned int)(sector >> sb->s_blocksize_bits),
+ sb->s_blocksize);
/* Process the sequence (if applicable) */
for (; !nsr02 && !nsr03; sector += sectorsize) {
/* Read a block */
}
/*
- * udf_find_anchor
- *
- * PURPOSE
- * Find an anchor volume descriptor.
- *
- * PRE-CONDITIONS
- * sb Pointer to _locked_ superblock.
- * lastblock Last block on media.
- *
- * POST-CONDITIONS
- * <return> 1 if not found, 0 if ok
- *
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
+ * Check whether there is an anchor block in the given block
*/
-static void udf_find_anchor(struct super_block *sb)
+static int udf_check_anchor_block(struct super_block *sb, sector_t block)
{
- int lastblock;
- struct buffer_head *bh = NULL;
+ struct buffer_head *bh;
uint16_t ident;
- uint32_t location;
+
+ if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&
+ udf_fixed_to_variable(block) >=
+ sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
+ return 0;
+
+ bh = udf_read_tagged(sb, block, block, &ident);
+ if (!bh)
+ return 0;
+ brelse(bh);
+
+ return ident == TAG_IDENT_AVDP;
+}
+
+/* Search for an anchor volume descriptor pointer */
+static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock)
+{
+ sector_t last[6];
int i;
- struct udf_sb_info *sbi;
+ struct udf_sb_info *sbi = UDF_SB(sb);
- sbi = UDF_SB(sb);
- lastblock = sbi->s_last_block;
-
- if (lastblock) {
- int varlastblock = udf_variable_to_fixed(lastblock);
- int last[] = { lastblock, lastblock - 2,
- lastblock - 150, lastblock - 152,
- varlastblock, varlastblock - 2,
- varlastblock - 150, varlastblock - 152 };
-
- lastblock = 0;
-
- /* Search for an anchor volume descriptor pointer */
-
- /* according to spec, anchor is in either:
- * block 256
- * lastblock-256
- * lastblock
- * however, if the disc isn't closed, it could be 512 */
-
- for (i = 0; !lastblock && i < ARRAY_SIZE(last); i++) {
- ident = location = 0;
- if (last[i] >= 0) {
- bh = sb_bread(sb, last[i]);
- if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
- brelse(bh);
- }
- }
+ last[0] = lastblock;
+ last[1] = last[0] - 1;
+ last[2] = last[0] + 1;
+ last[3] = last[0] - 2;
+ last[4] = last[0] - 150;
+ last[5] = last[0] - 152;
+
+ /* according to spec, anchor is in either:
+ * block 256
+ * lastblock-256
+ * lastblock
+ * however, if the disc isn't closed, it could be 512 */
+
+ for (i = 0; i < ARRAY_SIZE(last); i++) {
+ if (last[i] < 0)
+ continue;
+ if (last[i] >= sb->s_bdev->bd_inode->i_size >>
+ sb->s_blocksize_bits)
+ continue;
- if (ident == TAG_IDENT_AVDP) {
- if (location == last[i] - sbi->s_session) {
- lastblock = last[i] - sbi->s_session;
- sbi->s_anchor[0] = lastblock;
- sbi->s_anchor[1] = lastblock - 256;
- } else if (location ==
- udf_variable_to_fixed(last[i]) -
- sbi->s_session) {
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
- lastblock =
- udf_variable_to_fixed(last[i]) -
- sbi->s_session;
- sbi->s_anchor[0] = lastblock;
- sbi->s_anchor[1] = lastblock - 256 -
- sbi->s_session;
- } else {
- udf_debug("Anchor found at block %d, "
- "location mismatch %d.\n",
- last[i], location);
- }
- } else if (ident == TAG_IDENT_FE ||
- ident == TAG_IDENT_EFE) {
- lastblock = last[i];
- sbi->s_anchor[3] = 512;
- } else {
- ident = location = 0;
- if (last[i] >= 256) {
- bh = sb_bread(sb, last[i] - 256);
- if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(
- t->tagIdent);
- location = le32_to_cpu(
- t->tagLocation);
- brelse(bh);
- }
- }
+ if (udf_check_anchor_block(sb, last[i])) {
+ sbi->s_anchor[0] = last[i];
+ sbi->s_anchor[1] = last[i] - 256;
+ return last[i];
+ }
- if (ident == TAG_IDENT_AVDP &&
- location == last[i] - 256 -
- sbi->s_session) {
- lastblock = last[i];
- sbi->s_anchor[1] = last[i] - 256;
- } else {
- ident = location = 0;
- if (last[i] >= 312 + sbi->s_session) {
- bh = sb_bread(sb,
- last[i] - 312 -
- sbi->s_session);
- if (bh) {
- tag *t = (tag *)
- bh->b_data;
- ident = le16_to_cpu(
- t->tagIdent);
- location = le32_to_cpu(
- t->tagLocation);
- brelse(bh);
- }
- }
+ if (last[i] < 256)
+ continue;
- if (ident == TAG_IDENT_AVDP &&
- location == udf_variable_to_fixed(last[i]) - 256) {
- UDF_SET_FLAG(sb,
- UDF_FLAG_VARCONV);
- lastblock = udf_variable_to_fixed(last[i]);
- sbi->s_anchor[1] = lastblock - 256;
- }
- }
- }
+ if (udf_check_anchor_block(sb, last[i] - 256)) {
+ sbi->s_anchor[1] = last[i] - 256;
+ return last[i];
}
}
- if (!lastblock) {
- /* We haven't found the lastblock. check 312 */
- bh = sb_bread(sb, 312 + sbi->s_session);
- if (bh) {
- tag *t = (tag *)bh->b_data;
- ident = le16_to_cpu(t->tagIdent);
- location = le32_to_cpu(t->tagLocation);
- brelse(bh);
+ if (udf_check_anchor_block(sb, sbi->s_session + 256)) {
+ sbi->s_anchor[0] = sbi->s_session + 256;
+ return last[0];
+ }
+ if (udf_check_anchor_block(sb, sbi->s_session + 512)) {
+ sbi->s_anchor[0] = sbi->s_session + 512;
+ return last[0];
+ }
+ return 0;
+}
- if (ident == TAG_IDENT_AVDP && location == 256)
- UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
- }
+/*
+ * Find an anchor volume descriptor. The function expects sbi->s_lastblock to
+ * be the last block on the media.
+ *
+ * Return 1 if not found, 0 if ok
+ *
+ */
+static void udf_find_anchor(struct super_block *sb)
+{
+ sector_t lastblock;
+ struct buffer_head *bh = NULL;
+ uint16_t ident;
+ int i;
+ struct udf_sb_info *sbi = UDF_SB(sb);
+
+ lastblock = udf_scan_anchors(sb, sbi->s_last_block);
+ if (lastblock)
+ goto check_anchor;
+
+ /* No anchor found? Try VARCONV conversion of block numbers */
+ UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+ /* Firstly, we try to not convert number of the last block */
+ lastblock = udf_scan_anchors(sb,
+ udf_variable_to_fixed(sbi->s_last_block));
+ if (lastblock)
+ goto check_anchor;
+
+ /* Secondly, we try with converted number of the last block */
+ lastblock = udf_scan_anchors(sb, sbi->s_last_block);
+ if (!lastblock) {
+ /* VARCONV didn't help. Clear it. */
+ UDF_CLEAR_FLAG(sb, UDF_FLAG_VARCONV);
}
+check_anchor:
+ /*
+ * Check located anchors and the anchor block supplied via
+ * mount options
+ */
for (i = 0; i < ARRAY_SIZE(sbi->s_anchor); i++) {
if (!sbi->s_anchor[i])
continue;
sbi->s_anchor[i] = 0;
else {
brelse(bh);
- if ((ident != TAG_IDENT_AVDP) &&
- (i || (ident != TAG_IDENT_FE &&
- ident != TAG_IDENT_EFE)))
+ if (ident != TAG_IDENT_AVDP)
sbi->s_anchor[i] = 0;
}
}
return 0;
}
+static int udf_load_metadata_files(struct super_block *sb, int partition)
+{
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map;
+ struct udf_meta_data *mdata;
+ kernel_lb_addr addr;
+ int fe_error = 0;
+
+ map = &sbi->s_partmaps[partition];
+ mdata = &map->s_type_specific.s_metadata;
+
+ /* metadata address */
+ addr.logicalBlockNum = mdata->s_meta_file_loc;
+ addr.partitionReferenceNum = map->s_partition_num;
+
+ udf_debug("Metadata file location: block = %d part = %d\n",
+ addr.logicalBlockNum, addr.partitionReferenceNum);
+
+ mdata->s_metadata_fe = udf_iget(sb, addr);
+
+ if (mdata->s_metadata_fe == NULL) {
+ udf_warning(sb, __func__, "metadata inode efe not found, "
+ "will try mirror inode.");
+ fe_error = 1;
+ } else if (UDF_I(mdata->s_metadata_fe)->i_alloc_type !=
+ ICBTAG_FLAG_AD_SHORT) {
+ udf_warning(sb, __func__, "metadata inode efe does not have "
+ "short allocation descriptors!");
+ fe_error = 1;
+ iput(mdata->s_metadata_fe);
+ mdata->s_metadata_fe = NULL;
+ }
+
+ /* mirror file entry */
+ addr.logicalBlockNum = mdata->s_mirror_file_loc;
+ addr.partitionReferenceNum = map->s_partition_num;
+
+ udf_debug("Mirror metadata file location: block = %d part = %d\n",
+ addr.logicalBlockNum, addr.partitionReferenceNum);
+
+ mdata->s_mirror_fe = udf_iget(sb, addr);
+
+ if (mdata->s_mirror_fe == NULL) {
+ if (fe_error) {
+ udf_error(sb, __func__, "mirror inode efe not found "
+ "and metadata inode is missing too, exiting...");
+ goto error_exit;
+ } else
+ udf_warning(sb, __func__, "mirror inode efe not found,"
+ " but metadata inode is OK");
+ } else if (UDF_I(mdata->s_mirror_fe)->i_alloc_type !=
+ ICBTAG_FLAG_AD_SHORT) {
+ udf_warning(sb, __func__, "mirror inode efe does not have "
+ "short allocation descriptors!");
+ iput(mdata->s_mirror_fe);
+ mdata->s_mirror_fe = NULL;
+ if (fe_error)
+ goto error_exit;
+ }
+
+ /*
+ * bitmap file entry
+ * Note:
+ * Load only if bitmap file location differs from 0xFFFFFFFF (DCN-5102)
+ */
+ if (mdata->s_bitmap_file_loc != 0xFFFFFFFF) {
+ addr.logicalBlockNum = mdata->s_bitmap_file_loc;
+ addr.partitionReferenceNum = map->s_partition_num;
+
+ udf_debug("Bitmap file location: block = %d part = %d\n",
+ addr.logicalBlockNum, addr.partitionReferenceNum);
+
+ mdata->s_bitmap_fe = udf_iget(sb, addr);
+
+ if (mdata->s_bitmap_fe == NULL) {
+ if (sb->s_flags & MS_RDONLY)
+ udf_warning(sb, __func__, "bitmap inode efe "
+ "not found but it's ok since the disc"
+ " is mounted read-only");
+ else {
+ udf_error(sb, __func__, "bitmap inode efe not "
+ "found and attempted read-write mount");
+ goto error_exit;
+ }
+ }
+ }
+
+ udf_debug("udf_load_metadata_files Ok\n");
+
+ return 0;
+
+error_exit:
+ return 1;
+}
+
static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
kernel_lb_addr *root)
{
bitmap = vmalloc(size); /* TODO: get rid of vmalloc */
if (bitmap == NULL) {
- udf_error(sb, __FUNCTION__,
+ udf_error(sb, __func__,
"Unable to allocate space for bitmap "
"and %d buffer_head pointers", nr_groups);
return NULL;
if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
- udf_debug("Partition (%d:%d type %x) starts at physical %d, "
- "block length %d\n", partitionNumber, p_index,
+ udf_debug("Partition (%d type %x) starts at physical %d, "
+ "block length %d\n", p_index,
map->s_partition_type, map->s_partition_root,
map->s_partition_len);
return 0;
}
+static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
+{
+ struct udf_sb_info *sbi = UDF_SB(sb);
+ struct udf_part_map *map = &sbi->s_partmaps[p_index];
+ kernel_lb_addr ino;
+ struct buffer_head *bh = NULL;
+ struct udf_inode_info *vati;
+ uint32_t pos;
+ struct virtualAllocationTable20 *vat20;
+
+ /* VAT file entry is in the last recorded block */
+ ino.partitionReferenceNum = type1_index;
+ ino.logicalBlockNum = sbi->s_last_block - map->s_partition_root;
+ sbi->s_vat_inode = udf_iget(sb, ino);
+ if (!sbi->s_vat_inode)
+ return 1;
+
+ if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
+ map->s_type_specific.s_virtual.s_start_offset = 0;
+ map->s_type_specific.s_virtual.s_num_entries =
+ (sbi->s_vat_inode->i_size - 36) >> 2;
+ } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
+ vati = UDF_I(sbi->s_vat_inode);
+ if (vati->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+ pos = udf_block_map(sbi->s_vat_inode, 0);
+ bh = sb_bread(sb, pos);
+ if (!bh)
+ return 1;
+ vat20 = (struct virtualAllocationTable20 *)bh->b_data;
+ } else {
+ vat20 = (struct virtualAllocationTable20 *)
+ vati->i_ext.i_data;
+ }
+
+ map->s_type_specific.s_virtual.s_start_offset =
+ le16_to_cpu(vat20->lengthHeader);
+ map->s_type_specific.s_virtual.s_num_entries =
+ (sbi->s_vat_inode->i_size -
+ map->s_type_specific.s_virtual.
+ s_start_offset) >> 2;
+ brelse(bh);
+ }
+ return 0;
+}
+
static int udf_load_partdesc(struct super_block *sb, sector_t block)
{
struct buffer_head *bh;
struct partitionDesc *p;
struct udf_part_map *map;
struct udf_sb_info *sbi = UDF_SB(sb);
- bool found = false;
- int i;
+ int i, type1_idx;
uint16_t partitionNumber;
uint16_t ident;
int ret = 0;
p = (struct partitionDesc *)bh->b_data;
partitionNumber = le16_to_cpu(p->partitionNumber);
+
+ /* First scan for TYPE1, SPARABLE and METADATA partitions */
for (i = 0; i < sbi->s_partitions; i++) {
map = &sbi->s_partmaps[i];
udf_debug("Searching map: (%d == %d)\n",
map->s_partition_num, partitionNumber);
- found = map->s_partition_num == partitionNumber;
- if (found)
+ if (map->s_partition_num == partitionNumber &&
+ (map->s_partition_type == UDF_TYPE1_MAP15 ||
+ map->s_partition_type == UDF_SPARABLE_MAP15))
break;
}
- if (!found) {
+ if (i >= sbi->s_partitions) {
udf_debug("Partition (%d) not found in partition map\n",
partitionNumber);
goto out_bh;
}
ret = udf_fill_partdesc_info(sb, p, i);
+
+ /*
+ * Now rescan for VIRTUAL or METADATA partitions when SPARABLE and
+ * PHYSICAL partitions are already set up
+ */
+ type1_idx = i;
+ for (i = 0; i < sbi->s_partitions; i++) {
+ map = &sbi->s_partmaps[i];
+
+ if (map->s_partition_num == partitionNumber &&
+ (map->s_partition_type == UDF_VIRTUAL_MAP15 ||
+ map->s_partition_type == UDF_VIRTUAL_MAP20 ||
+ map->s_partition_type == UDF_METADATA_MAP25))
+ break;
+ }
+
+ if (i >= sbi->s_partitions)
+ goto out_bh;
+
+ ret = udf_fill_partdesc_info(sb, p, i);
+ if (ret)
+ goto out_bh;
+
+ if (map->s_partition_type == UDF_METADATA_MAP25) {
+ ret = udf_load_metadata_files(sb, i);
+ if (ret) {
+ printk(KERN_ERR "UDF-fs: error loading MetaData "
+ "partition map %d\n", i);
+ goto out_bh;
+ }
+ } else {
+ ret = udf_load_vat(sb, i, type1_idx);
+ if (ret)
+ goto out_bh;
+ /*
+ * Mark filesystem read-only if we have a partition with
+ * virtual map since we don't handle writing to it (we
+ * overwrite blocks instead of relocating them).
+ */
+ sb->s_flags |= MS_RDONLY;
+ printk(KERN_NOTICE "UDF-fs: Filesystem marked read-only "
+ "because writing to pseudooverwrite partition is "
+ "not implemented.\n");
+ }
out_bh:
/* In case loading failed, we handle cleanup in udf_fill_super */
brelse(bh);
u16 suf =
le16_to_cpu(((__le16 *)upm2->partIdent.
identSuffix)[0]);
- if (suf == 0x0150) {
+ if (suf < 0x0200) {
map->s_partition_type =
UDF_VIRTUAL_MAP15;
map->s_partition_func =
udf_get_pblock_virt15;
- } else if (suf == 0x0200) {
+ } else {
map->s_partition_type =
UDF_VIRTUAL_MAP20;
map->s_partition_func =
}
}
map->s_partition_func = udf_get_pblock_spar15;
+ } else if (!strncmp(upm2->partIdent.ident,
+ UDF_ID_METADATA,
+ strlen(UDF_ID_METADATA))) {
+ struct udf_meta_data *mdata =
+ &map->s_type_specific.s_metadata;
+ struct metadataPartitionMap *mdm =
+ (struct metadataPartitionMap *)
+ &(lvd->partitionMaps[offset]);
+ udf_debug("Parsing Logical vol part %d "
+ "type %d id=%s\n", i, type,
+ UDF_ID_METADATA);
+
+ map->s_partition_type = UDF_METADATA_MAP25;
+ map->s_partition_func = udf_get_pblock_meta25;
+
+ mdata->s_meta_file_loc =
+ le32_to_cpu(mdm->metadataFileLoc);
+ mdata->s_mirror_file_loc =
+ le32_to_cpu(mdm->metadataMirrorFileLoc);
+ mdata->s_bitmap_file_loc =
+ le32_to_cpu(mdm->metadataBitmapFileLoc);
+ mdata->s_alloc_unit_size =
+ le32_to_cpu(mdm->allocUnitSize);
+ mdata->s_align_unit_size =
+ le16_to_cpu(mdm->alignUnitSize);
+ mdata->s_dup_md_flag =
+ mdm->flags & 0x01;
+
+ udf_debug("Metadata Ident suffix=0x%x\n",
+ (le16_to_cpu(
+ ((__le16 *)
+ mdm->partIdent.identSuffix)[0])));
+ udf_debug("Metadata part num=%d\n",
+ le16_to_cpu(mdm->partitionNum));
+ udf_debug("Metadata part alloc unit size=%d\n",
+ le32_to_cpu(mdm->allocUnitSize));
+ udf_debug("Metadata file loc=%d\n",
+ le32_to_cpu(mdm->metadataFileLoc));
+ udf_debug("Mirror file loc=%d\n",
+ le32_to_cpu(mdm->metadataMirrorFileLoc));
+ udf_debug("Bitmap file loc=%d\n",
+ le32_to_cpu(mdm->metadataBitmapFileLoc));
+ udf_debug("Duplicate Flag: %d %d\n",
+ mdata->s_dup_md_flag, mdm->flags);
} else {
udf_debug("Unknown ident: %s\n",
upm2->partIdent.ident);
return !block;
}
-static int udf_load_partition(struct super_block *sb, kernel_lb_addr *fileset)
+static int udf_load_sequence(struct super_block *sb, kernel_lb_addr *fileset)
{
struct anchorVolDescPtr *anchor;
uint16_t ident;
struct buffer_head *bh;
long main_s, main_e, reserve_s, reserve_e;
- int i, j;
+ int i;
struct udf_sb_info *sbi;
if (!sb)
}
udf_debug("Using anchor in block %d\n", sbi->s_anchor[i]);
- for (i = 0; i < sbi->s_partitions; i++) {
- kernel_lb_addr uninitialized_var(ino);
- struct udf_part_map *map = &sbi->s_partmaps[i];
-
- if (map->s_partition_type != UDF_VIRTUAL_MAP15 &&
- map->s_partition_type != UDF_VIRTUAL_MAP20)
- continue;
-
- if (!sbi->s_last_block) {
- sbi->s_last_block = udf_get_last_block(sb);
- udf_find_anchor(sb);
- }
-
- if (!sbi->s_last_block) {
- udf_debug("Unable to determine Lastblock (For "
- "Virtual Partition)\n");
- return 1;
- }
-
- for (j = 0; j < sbi->s_partitions; j++) {
- struct udf_part_map *map2 = &sbi->s_partmaps[j];
- if (j != i &&
- map->s_volumeseqnum ==
- map2->s_volumeseqnum &&
- map->s_partition_num ==
- map2->s_partition_num) {
- ino.partitionReferenceNum = j;
- ino.logicalBlockNum =
- sbi->s_last_block -
- map2->s_partition_root;
- break;
- }
- }
-
- if (j == sbi->s_partitions)
- return 1;
-
- sbi->s_vat_inode = udf_iget(sb, ino);
- if (!sbi->s_vat_inode)
- return 1;
-
- if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
- map->s_type_specific.s_virtual.s_start_offset =
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_num_entries =
- (sbi->s_vat_inode->i_size - 36) >> 2;
- } else if (map->s_partition_type == UDF_VIRTUAL_MAP20) {
- uint32_t pos;
- struct virtualAllocationTable20 *vat20;
-
- pos = udf_block_map(sbi->s_vat_inode, 0);
- bh = sb_bread(sb, pos);
- if (!bh)
- return 1;
- vat20 = (struct virtualAllocationTable20 *)
- bh->b_data +
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_start_offset =
- le16_to_cpu(vat20->lengthHeader) +
- udf_ext0_offset(sbi->s_vat_inode);
- map->s_type_specific.s_virtual.s_num_entries =
- (sbi->s_vat_inode->i_size -
- map->s_type_specific.s_virtual.
- s_start_offset) >> 2;
- brelse(bh);
- }
- map->s_partition_root = udf_get_pblock(sb, 0, i, 0);
- map->s_partition_len =
- sbi->s_partmaps[ino.partitionReferenceNum].
- s_partition_len;
- }
return 0;
}
lvid->integrityType = LVID_INTEGRITY_TYPE_OPEN;
lvid->descTag.descCRC = cpu_to_le16(
- udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength), 0));
+ crc_itu_t(0, (char *)lvid + sizeof(tag),
+ le16_to_cpu(lvid->descTag.descCRCLength)));
lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
mark_buffer_dirty(bh);
lvid->integrityType = cpu_to_le32(LVID_INTEGRITY_TYPE_CLOSE);
lvid->descTag.descCRC = cpu_to_le16(
- udf_crc((char *)lvid + sizeof(tag),
- le16_to_cpu(lvid->descTag.descCRCLength),
- 0));
+ crc_itu_t(0, (char *)lvid + sizeof(tag),
+ le16_to_cpu(lvid->descTag.descCRCLength)));
lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
mark_buffer_dirty(bh);
static void udf_free_partition(struct udf_part_map *map)
{
int i;
+ struct udf_meta_data *mdata;
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
iput(map->s_uspace.s_table);
if (map->s_partition_type == UDF_SPARABLE_MAP15)
for (i = 0; i < 4; i++)
brelse(map->s_type_specific.s_sparing.s_spar_map[i]);
+ else if (map->s_partition_type == UDF_METADATA_MAP25) {
+ mdata = &map->s_type_specific.s_metadata;
+ iput(mdata->s_metadata_fe);
+ mdata->s_metadata_fe = NULL;
+
+ iput(mdata->s_mirror_fe);
+ mdata->s_mirror_fe = NULL;
+
+ iput(mdata->s_bitmap_fe);
+ mdata->s_bitmap_fe = NULL;
+ }
}
static int udf_fill_super(struct super_block *sb, void *options, int silent)
sbi->s_last_block = uopt.lastblock;
sbi->s_anchor[0] = sbi->s_anchor[1] = 0;
sbi->s_anchor[2] = uopt.anchor;
- sbi->s_anchor[3] = 256;
if (udf_check_valid(sb, uopt.novrs, silent)) {
/* read volume recognition sequences */
/* Fill in the rest of the superblock */
sb->s_op = &udf_sb_ops;
+ sb->s_export_op = &udf_export_ops;
sb->dq_op = NULL;
sb->s_dirt = 0;
sb->s_magic = UDF_SUPER_MAGIC;
sb->s_time_gran = 1000;
- if (udf_load_partition(sb, &fileset)) {
+ if (udf_load_sequence(sb, &fileset)) {
printk(KERN_WARNING "UDF-fs: No partition found (1)\n");
goto error_out;
}
git.openpandora.org / pandora-kernel.git / blobdiff