Question: In a log - structured file system with N data blocks, if each inode map entry occupies M bytes and each inode entry occupies P

In a log-structured file system with N data blocks, if each inode map entry occupies M bytes and
each inode entry occupies P bytes, what would be the total overhead in bytes for storing inode
and inode map entries if the file system has K inodes, assuming perfect utilization of each block?
a.(KxP)+(NxM) bytes
b.
In a log - structured file system with N data

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