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| author | Jan Kara <jack@suse.cz> | 2008-04-08 02:08:53 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2008-04-17 14:25:35 +0200 |
| commit | fa5e08156335d0687c85b4e724db9448fb166601 (patch) | |
| tree | 196b9d20b70129d892ceb3cf43ffb611b0067075 /fs/udf/super.c | |
| parent | 742e1795e2d9dc99657742e5bbbb7907596bf6c3 (diff) | |
| download | linux-fa5e08156335d0687c85b4e724db9448fb166601.tar.gz linux-fa5e08156335d0687c85b4e724db9448fb166601.tar.bz2 linux-fa5e08156335d0687c85b4e724db9448fb166601.zip | |
udf: Handle VAT packed inside inode properly
We didn't handle VAT packed inside the inode - we tried to call udf_block_map()
on such file which lead to strange results at best. Add proper handling of
packed VAT as we do it with other packed files.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/super.c')
| -rw-r--r-- | fs/udf/super.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c index 14f965e8a738..abdb9b31da46 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1107,7 +1107,10 @@ 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; + 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; @@ -1122,15 +1125,18 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index) 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; + 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; + } - 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); |