From 96200be3077c5ede16a90b33aca815b444e66043 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 8 Apr 2008 13:29:20 +0200 Subject: [PATCH] udf: Mount filesystem read-only if it has pseudooverwrite partition As we don't properly support writing to pseudooverwrite partition (we should add entries to VAT and relocate blocks instead of just writing them), mount filesystems with such partition as read-only. Signed-off-by: Jan Kara --- fs/udf/super.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/udf/super.c b/fs/udf/super.c index abdb9b31da..650f20fe9d 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: -- 2.39.5