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-rw-r--r--fs/udf/partition.c8
-rw-r--r--fs/udf/super.c68
-rw-r--r--fs/udf/udf_sb.h1
-rw-r--r--fs/udf/udfdecl.h2
4 files changed, 43 insertions, 36 deletions
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index f3e472c..b526f25 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -321,8 +321,14 @@ uint32_t udf_get_pblock_meta25(struct super_block *sb, uint32_t block,
/* We shouldn't mount such media... */
BUG_ON(!inode);
retblk = udf_try_read_meta(inode, block, partition, offset);
- if (retblk == 0xFFFFFFFF) {
+ if (retblk == 0xFFFFFFFF && mdata->s_metadata_fe) {
udf_warn(sb, "error reading from METADATA, trying to read from MIRROR\n");
+ if (!mdata->s_mirror_loaded_flag) {
+ mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb,
+ mdata->s_mirror_file_loc, map->s_partition_num);
+ mdata->s_mirror_loaded_flag = 1;
+ }
+
inode = mdata->s_mirror_fe;
if (!inode)
return 0xFFFFFFFF;
diff --git a/fs/udf/super.c b/fs/udf/super.c
index e58123ad..dfe043a 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -826,59 +826,57 @@ out1:
return ret;
}
+struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
+ u32 meta_file_loc, u32 partition_num)
+{
+ struct kernel_lb_addr addr;
+ struct inode *metadata_fe;
+
+ addr.logicalBlockNum = meta_file_loc;
+ addr.partitionReferenceNum = partition_num;
+
+ metadata_fe = udf_iget(sb, &addr);
+
+ if (metadata_fe == NULL)
+ udf_warn(sb, "metadata inode efe not found\n");
+ else if (UDF_I(metadata_fe)->i_alloc_type != ICBTAG_FLAG_AD_SHORT) {
+ udf_warn(sb, "metadata inode efe does not have short allocation descriptors!\n");
+ iput(metadata_fe);
+ metadata_fe = NULL;
+ }
+
+ return metadata_fe;
+}
+
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;
struct 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_meta_file_loc, map->s_partition_num);
- mdata->s_metadata_fe = udf_iget(sb, &addr);
+ mdata->s_metadata_fe = udf_find_metadata_inode_efe(sb,
+ mdata->s_meta_file_loc, map->s_partition_num);
if (mdata->s_metadata_fe == NULL) {
- udf_warn(sb, "metadata inode efe not found, will try mirror inode\n");
- fe_error = 1;
- } else if (UDF_I(mdata->s_metadata_fe)->i_alloc_type !=
- ICBTAG_FLAG_AD_SHORT) {
- udf_warn(sb, "metadata inode efe does not have short allocation descriptors!\n");
- 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;
+ /* mirror file entry */
+ udf_debug("Mirror metadata file location: block = %d part = %d\n",
+ mdata->s_mirror_file_loc, map->s_partition_num);
- udf_debug("Mirror metadata file location: block = %d part = %d\n",
- addr.logicalBlockNum, addr.partitionReferenceNum);
+ mdata->s_mirror_fe = udf_find_metadata_inode_efe(sb,
+ mdata->s_mirror_file_loc, map->s_partition_num);
- mdata->s_mirror_fe = udf_iget(sb, &addr);
-
- if (mdata->s_mirror_fe == NULL) {
- if (fe_error) {
- udf_err(sb, "mirror inode efe not found and metadata inode is missing too, exiting...\n");
- goto error_exit;
- } else
- udf_warn(sb, "mirror inode efe not found, but metadata inode is OK\n");
- } else if (UDF_I(mdata->s_mirror_fe)->i_alloc_type !=
- ICBTAG_FLAG_AD_SHORT) {
- udf_warn(sb, "mirror inode efe does not have short allocation descriptors!\n");
- iput(mdata->s_mirror_fe);
- mdata->s_mirror_fe = NULL;
- if (fe_error)
+ if (mdata->s_mirror_fe == NULL) {
+ udf_err(sb, "Both metadata and mirror metadata inode efe can not found\n");
goto error_exit;
+ }
}
/*
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index 4858c19..a3146b0 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -61,6 +61,7 @@ struct udf_meta_data {
__u32 s_alloc_unit_size;
__u16 s_align_unit_size;
__u8 s_dup_md_flag;
+ __u8 s_mirror_loaded_flag;
struct inode *s_metadata_fe;
struct inode *s_mirror_fe;
struct inode *s_bitmap_fe;
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index f3d44986..79aae3f 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -135,6 +135,8 @@ static inline void udf_updated_lvid(struct super_block *sb)
UDF_SB(sb)->s_lvid_dirty = 1;
}
extern u64 lvid_get_unique_id(struct super_block *sb);
+struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
+ u32 meta_file_loc, u32 partition_num);
/* namei.c */
extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
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