1 files changed, 8 insertions, 0 deletions

diff --git a/fs/udf/super.c b/fs/udf/super.c
index abdb9b31da46..650f20fe9d62 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1208,6 +1208,14 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
         ret = udf_fill_partdesc_info(sb, p, i);
         if (ret)
                 goto out_bh;
+        /*
+         * Mark filesystem read-only if we have a partition with virtual map
+         * since we don't handle writing to it (we overwrite blocks instead of
+         * relocating them).
+         */
+        sb->s_flags |= MS_RDONLY;
+        printk(KERN_NOTICE "UDF-fs: Filesystem marked read-only because "
+                "writing to pseudooverwrite partition is not implemented.\n");
 
         ret = udf_load_vat(sb, i, type1_idx);
 out_bh: