[Drbd-dev] [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios

[Christoph Hellwig]

On Fri, Aug 07, 2015 at 09:22:26PM -0800, Kent Overstreet wrote:
> Is granularity required to be a power of two? One would hope, but looking at the
> code that doesn't appear to be a requirement... ugh, that's terrible...

If devices have an odd granularity we'll just have to split more than
nessecary.  Let's hope no major hardware does that.