4.5-rc iser issues

[Sagi Grimberg]

> I can reproduce the issue now, and it is easy to trigger it via your test
> code on scsi device, but a bit difficult to get it on null_blk.
>
> Turns out it is a block core issue, and it is in bio_will_gap() which gets
> the last bvec via 'bi_io_vec[prev->bi_vcnt - 1]' directly.  I have posted
> out one patchset for fixing the issue:
>
> http://marc.info/?l=linux-kernel&m=145551975429092&w=2

Thanks Ming!

I'll give it a shot...