udf: Suspicious values in udf_statfs()

[Pali Rohár <pali.rohar@xxxxxxxxx>]

Hello,

I looked at udf_statfs() implementation and I see there two things which
are probably incorrect:

First one:

	buf->f_blocks = sbi->s_partmaps[sbi->s_partition].s_partition_len;

If sbi->s_partition points to Metadata partition then reported number
of blocks seems to be incorrect. Similar like in udf_count_free().

Second one:

	buf->f_files = (lvidiu != NULL ? (le32_to_cpu(lvidiu->numFiles) +
					  le32_to_cpu(lvidiu->numDirs)) : 0)
			+ buf->f_bfree;

What f_files entry should report? Because result of sum of free blocks
and number of files+directories does not make sense for me.

-- 
Pali Rohár
pali.rohar@xxxxxxxxx

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