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authorSebastian Manciulea <manciuleas@yahoo.com>2008-04-08 14:02:11 +0200
committerJan Kara <jack@suse.cz>2008-04-17 14:28:33 +0200
commitf4bcbbd92ebda971f7c2cd1132b399808ed6cf9b (patch)
tree0c68fff93557d4fbcec3ad0eab0382b3084ba60c /fs/udf/misc.c
parent96200be3077c5ede16a90b33aca815b444e66043 (diff)
downloadop-kernel-dev-f4bcbbd92ebda971f7c2cd1132b399808ed6cf9b.zip
op-kernel-dev-f4bcbbd92ebda971f7c2cd1132b399808ed6cf9b.tar.gz
udf: Fix handling of multisession media
According to OSTA UDF specification, only anchor blocks and primary volume descriptors are placed on media relative to the last session. All other block numbers are absolute (in the partition or the whole media). This seems to be confirmed by multisession media created by other systems. Signed-off-by: Sebastian Manciulea <manciuleas@yahoo.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/misc.c')
-rw-r--r--fs/udf/misc.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 581b6e4..9699620 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -203,16 +203,15 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
{
tag *tag_p;
struct buffer_head *bh = NULL;
- struct udf_sb_info *sbi = UDF_SB(sb);
/* Read the block */
if (block == 0xFFFFFFFF)
return NULL;
- bh = udf_tread(sb, block + sbi->s_session);
+ bh = udf_tread(sb, block);
if (!bh) {
udf_debug("block=%d, location=%d: read failed\n",
- block + sbi->s_session, location);
+ block, location);
return NULL;
}
@@ -222,8 +221,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
if (location != le32_to_cpu(tag_p->tagLocation)) {
udf_debug("location mismatch block %u, tag %u != %u\n",
- block + sbi->s_session,
- le32_to_cpu(tag_p->tagLocation), location);
+ block, le32_to_cpu(tag_p->tagLocation), location);
goto error_out;
}
@@ -247,9 +245,8 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
le16_to_cpu(tag_p->descCRCLength), 0))
return bh;
- udf_debug("Crc failure block %d: crc = %d, crclen = %d\n",
- block + sbi->s_session, le16_to_cpu(tag_p->descCRC),
- le16_to_cpu(tag_p->descCRCLength));
+ udf_debug("Crc failure block %d: crc = %d, crclen = %d\n", block,
+ le16_to_cpu(tag_p->descCRC), le16_to_cpu(tag_p->descCRCLength));
error_out:
brelse(bh);
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