Redudant Superblock flushes in PMFS

[Benjamin Reidys]

Hello,

I know that PMFS is no longer actively maintained but I was wondering if 
someone could confirm a bug I have stumbled across while testing a bug 
finding tool.

In super.c (lines 556 and 580), there are flushes to the redundant super 
blocks even though those blocks are used to recover the initial super 
block. Could someone confirm this is indeed the case or do they serve a 
purpose I am missing?

Thanks in advance!

- Ben