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udf: Mount filesystem read-only if it has pseudooverwrite partition

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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 <jack@suse.cz>
This commit is contained in:
Jan Kara 2008-04-08 13:29:20 +02:00
parent fa5e081563
commit 96200be307
1 changed files with 8 additions and 0 deletions
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8
fs/udf/super.c
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@ -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: