Why UBIFS min I/O unit size must be power of 2?

[Konstantin Tokarev]

Hi all,

I'd like to increase compression ratio of UBIFS image (at the cost of possibly
slower writes). However, my LEB size is 129024, so the largest block size that
I could use is 2048 (otherwise LEB won't be multiple of I/O unit size).

So I wonder why UBIFS cannot use 129024 as I/O unit size and requires it to be
power of 2? Is it possible to eleminate this limitation?

-- 
Regards,
Konstantin