Re: [PATCH 5/5] IB/hfi1: Fix improper uses of smp_mb__before_atomic()

From: Dennis Dalessandro
Date: Tue May 14 2019 - 08:34:34 EST

On 5/9/2019 5:12 PM, Andrea Parri wrote:
On Tue, Apr 30, 2019 at 01:16:57AM +0200, Andrea Parri wrote:
Hi Mike,

This barrier only applies to the read-modify-write operations; in
particular, it does not apply to the atomic_read() primitive.

Replace the barrier with an smp_mb().

This is one of a couple of barrier issues that we are currently looking into.


[PATCH for-next 6/9] IB/rdmavt: Add new completion inline

We will take a look at this one as well.

Thank you for the reference and for looking into this,

So, I'm planning to just drop this patch; or can I do something to help?

Please let me know.

Mike was looking into this, and I've got a handful of patches from him to review. He's unavailable for a while but if it's not included in the patches I've got we'll get something out shortly. So yes I think we can hold off on this patch for now. Thanks.