Re: why UDF have so ugly filesize limit?

[Jan Kara <jack@suse.cz>]

> from fs/udf/super.c:
> in function udf_fill_super
> sb->s_maxbytes = 1<<30; (1 GB)
> 
> Why sb->s_maxbytes is not equal to MAX_LFS_FILESIZE?
  Because UDF had some flaws and user could crash a kernel with larger
filesize. In -mm kernel are patches fixing the flaw and also raising the
limit back to MAX_LFS_FILESIZE.

> So, in include/linux/fs.h written that the filesystems should put that
> (MAX_LFS_FILESIZE) into their s_maxbytes, otherwise bad things can
> happen in VM.
  Bad things can happen only if you set it to more than
MAX_LFS_FILESIZE. With smaller values only users are disappointed ;).

								Honza
-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/