Re: [GIT PULL] Please pull RDMA subsystem changes

From: Linus Torvalds
Date: Sun Apr 28 2019 - 13:00:18 EST


On Sun, Apr 28, 2019 at 4:52 AM Jason Gunthorpe <jgg@xxxxxxxxxxxx> wrote:
>
> Nothing particularly special here. There is a small merge conflict
> with Adrea's mm_still_valid patches which is resolved as below:

I still don't understand *why* you play the crazy VM games to begin with.

What's wrong with just returning SIGBUS? Why does that
rdma_umap_fault() not just look like this one-liner:

return VM_FAULT_SIGBUS;

without the crazy parts? Nobody ever explained why you'd want to have
that silly "let's turn it into a bogus anonymous mapping".

I've pulled this, but why do the rdma and SCSI people always do these
strange and pointless things?

Linus