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authorJan Kara <jack@suse.cz>2018-09-06 18:52:28 +0300
committerJan Kara <jack@suse.cz>2018-09-07 11:32:22 +0300
commit694538b5d753666c81938ca6628188e1c432d377 (patch)
tree2fdcd152769c1f2ab6b19ae0ddaf5dc41d7b6573 /fs/udf/super.c
parentb085fbe2ef7fa7489903c45271ae7b7a52b0f9ab (diff)
downloadlinux-694538b5d753666c81938ca6628188e1c432d377.tar.xz
udf: Drop freed bitmap / table support
We don't support Free Space Table and Free Space Bitmap as specified by UDF standard for writing as we don't support erasing blocks before overwriting them. Just drop the handling of these structures as partition descriptor checking code already makes sure such filesystems can be mounted only read-only. Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/udf/super.c')
-rw-r--r--fs/udf/super.c44
1 files changed, 0 insertions, 44 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c
index be934bcfa24b..8f2f56d9a1bb 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -290,12 +290,8 @@ static void udf_free_partition(struct udf_part_map *map)
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_TABLE)
iput(map->s_uspace.s_table);
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE)
- iput(map->s_fspace.s_table);
if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
udf_sb_free_bitmap(map->s_uspace.s_bitmap);
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP)
- udf_sb_free_bitmap(map->s_fspace.s_bitmap);
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]);
@@ -1105,37 +1101,6 @@ static int udf_fill_partdesc_info(struct super_block *sb,
p_index, bitmap->s_extPosition);
}
- if (phd->freedSpaceTable.extLength) {
- struct kernel_lb_addr loc = {
- .logicalBlockNum = le32_to_cpu(
- phd->freedSpaceTable.extPosition),
- .partitionReferenceNum = p_index,
- };
- struct inode *inode;
-
- inode = udf_iget_special(sb, &loc);
- if (IS_ERR(inode)) {
- udf_debug("cannot load freedSpaceTable (part %d)\n",
- p_index);
- return PTR_ERR(inode);
- }
- map->s_fspace.s_table = inode;
- map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
- udf_debug("freedSpaceTable (part %d) @ %lu\n",
- p_index, map->s_fspace.s_table->i_ino);
- }
-
- if (phd->freedSpaceBitmap.extLength) {
- struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
- if (!bitmap)
- return -ENOMEM;
- map->s_fspace.s_bitmap = bitmap;
- bitmap->s_extPosition = le32_to_cpu(
- phd->freedSpaceBitmap.extPosition);
- map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
- udf_debug("freedSpaceBitmap (part %d) @ %u\n",
- p_index, bitmap->s_extPosition);
- }
return 0;
}
@@ -2490,10 +2455,6 @@ static unsigned int udf_count_free(struct super_block *sb)
accum += udf_count_free_bitmap(sb,
map->s_uspace.s_bitmap);
}
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_BITMAP) {
- accum += udf_count_free_bitmap(sb,
- map->s_fspace.s_bitmap);
- }
if (accum)
return accum;
@@ -2501,11 +2462,6 @@ static unsigned int udf_count_free(struct super_block *sb)
accum += udf_count_free_table(sb,
map->s_uspace.s_table);
}
- if (map->s_partition_flags & UDF_PART_FLAG_FREED_TABLE) {
- accum += udf_count_free_table(sb,
- map->s_fspace.s_table);
- }
-
return accum;
}