linux-kernel - Re: [PATCH v3 3/3] infiniband/mm: convert put_page() to put_user

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Message-ID: <b0f469c7-25dd-d86c-315d-149a9a64e231@nvidia.com>
Date:   Mon, 8 Oct 2018 13:59:03 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Jason Gunthorpe <jgg@...pe.ca>,
        Christian Benvenuti <benve@...co.com>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     <john.hubbard@...il.com>, Matthew Wilcox <willy@...radead.org>,
        Michal Hocko <mhocko@...nel.org>,
        Christopher Lameter <cl@...ux.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Jan Kara <jack@...e.cz>, <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-rdma <linux-rdma@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>,
        Doug Ledford <dledford@...hat.com>,
        Mike Marciniszyn <mike.marciniszyn@...el.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>
Subject: Re: [PATCH v3 3/3] infiniband/mm: convert put_page() to
 put_user_page*()

On 10/8/18 1:56 PM, Jason Gunthorpe wrote:
> On Mon, Oct 08, 2018 at 01:37:35PM -0700, John Hubbard wrote:
>> On 10/8/18 12:42 PM, Jason Gunthorpe wrote:
>>> On Fri, Oct 05, 2018 at 07:49:49PM -0700, john.hubbard@...il.com wrote:
>>>> From: John Hubbard <jhubbard@...dia.com>
>> [...]
>>>>  drivers/infiniband/core/umem.c              |  7 ++++---
>>>>  drivers/infiniband/core/umem_odp.c          |  2 +-
>>>>  drivers/infiniband/hw/hfi1/user_pages.c     | 11 ++++-------
>>>>  drivers/infiniband/hw/mthca/mthca_memfree.c |  6 +++---
>>>>  drivers/infiniband/hw/qib/qib_user_pages.c  | 11 ++++-------
>>>>  drivers/infiniband/hw/qib/qib_user_sdma.c   |  8 ++++----
>>>>  drivers/infiniband/hw/usnic/usnic_uiom.c    |  7 ++++---
>>>>  7 files changed, 24 insertions(+), 28 deletions(-)
>>>
>>> I have no issues with this, do you want this series to go through the
>>> rdma tree? Otherwise:
>>>
>>> Acked-by: Jason Gunthorpe <jgg@...lanox.com>
>>>
>>
>> The RDMA tree seems like a good path for this, yes, glad you suggested
>> that.
>>
>> I'll post a v4 with the comment fix and the recent reviewed-by's, which
>> should be ready for that.  It's based on today's linux.git tree at the 
>> moment, but let me know if I should re-apply it to the RDMA tree.
> 
> I'm unclear who needs to ack the MM sections for us to take it to
> RDMA?
> 
> Otherwise it is no problem..
> 

It needs Andrew Morton (+CC) and preferably also Michal Hocko (already on CC).

thanks,
-- 
John Hubbard
NVIDIA