udf: Skip mirror metadata FE loading when metadata FE is ok
It is not necessary to load mirror metadata FE when metadata FE is OK. So try
to read it only the first time udf_get_pblock_meta25() fails to map the block
from metadata FE.
Signed-off-by: Ashish Sangwan <ashishsangwan2@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
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 @@
/* 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;