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-rw-r--r--fs/udf/super.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/udf/super.c b/fs/udf/super.c
index abdb9b31da4..650f20fe9d6 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: