-----Original Message-----
> From: Yishai Hadas <yish...@nvidia.com>
> Sent: Tuesday, January 12, 2021 4:49 AM
> To: Xiong, Jianxin <jianxin.xi...@intel.com>; Alex Deucher 
> <alexdeuc...@gmail.com>
> Cc: Jason Gunthorpe <j...@ziepe.ca>; Leon Romanovsky <l...@kernel.org>; 
> linux-r...@vger.kernel.org; dri-devel@lists.freedesktop.org;
> Doug Ledford <dledf...@redhat.com>; Vetter, Daniel <daniel.vet...@intel.com>; 
> Christian Koenig <christian.koe...@amd.com>; Yishai
> Hadas <yish...@nvidia.com>
> Subject: Re: [PATCH v16 0/4] RDMA: Add dma-buf support
> 
> On 1/11/2021 7:55 PM, Xiong, Jianxin wrote:
> >> -----Original Message-----
> >> From: Alex Deucher <alexdeuc...@gmail.com>
> >> Sent: Monday, January 11, 2021 9:47 AM
> >> To: Xiong, Jianxin <jianxin.xi...@intel.com>
> >> Cc: Jason Gunthorpe <j...@ziepe.ca>; Leon Romanovsky
> >> <l...@kernel.org>; linux-r...@vger.kernel.org;
> >> dri-devel@lists.freedesktop.org; Doug Ledford <dledf...@redhat.com>;
> >> Vetter, Daniel <daniel.vet...@intel.com>; Christian Koenig
> >> <christian.koe...@amd.com>
> >> Subject: Re: [PATCH v16 0/4] RDMA: Add dma-buf support
> >>
> >> On Mon, Jan 11, 2021 at 12:44 PM Xiong, Jianxin <jianxin.xi...@intel.com> 
> >> wrote:
> >>>> -----Original Message-----
> >>>> From: Jason Gunthorpe <j...@ziepe.ca>
> >>>> Sent: Monday, January 11, 2021 7:43 AM
> >>>> To: Xiong, Jianxin <jianxin.xi...@intel.com>
> >>>> Cc: linux-r...@vger.kernel.org; dri-devel@lists.freedesktop.org;
> >>>> Doug Ledford <dledf...@redhat.com>; Leon Romanovsky
> >>>> <l...@kernel.org>; Sumit Semwal <sumit.sem...@linaro.org>;
> >>>> Christian Koenig <christian.koe...@amd.com>; Vetter, Daniel
> >>>> <daniel.vet...@intel.com>
> >>>> Subject: Re: [PATCH v16 0/4] RDMA: Add dma-buf support
> >>>>
> >>>> On Mon, Jan 11, 2021 at 03:24:18PM +0000, Xiong, Jianxin wrote:
> >>>>> Jason, will this series be able to get into 5.12?
> >>>> I was going to ask you where things are after the break?
> >>>>
> >>>> Did everyone agree the userspace stuff is OK now? Is Edward OK with
> >>>> the pyverbs changes, etc
> >>>>
> >>> There is no new comment on the both the kernel and userspace series.
> >>> I assume silence means no objection. I will ask for opinions on the 
> >>> userspace thread.
> >> Do you have a link to the userspace thread?
> >>
> > https://www.spinics.net/lists/linux-rdma/msg98135.html
> >
> Any reason why the 'fork' comment that was given few times wasn't not handled 
> / answered ?
> 
> Specifically,
> 
> ibv_reg_dmabuf_mr() doesn't call ibv_dontfork_range() but ibv_dereg_mr does 
> call its opposite API (i.e. ibv_dofork_range())
> 

Sorry, that part was missed. Strangely enough, a few of your replies didn't 
reach my inbox and I just found them in the web archives:  
https://www.spinics.net/lists/linux-rdma/msg97973.html, and 
https://www.spinics.net/lists/linux-rdma/msg98133.html

I will add check to ibv_dereg_mr() to avoid calling ibv_ibv_dofork_range() for 
dmabuf case.

Thanks a lot for bring this up again.

Jianxin
  


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