linux-kernel - Re: [PATCH v4 2/2] mm/hmm/test: add self tests for HMM

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Message-ID: <20191113135115.GA10688@lst.de>
Date:   Wed, 13 Nov 2019 14:51:15 +0100
From:   Christoph Hellwig <hch@....de>
To:     Jason Gunthorpe <jgg@...lanox.com>
Cc:     Ralph Campbell <rcampbell@...dia.com>,
        Christoph Hellwig <hch@....de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jerome Glisse <jglisse@...hat.com>,
        John Hubbard <jhubbard@...dia.com>,
        Shuah Khan <shuah@...nel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH v4 2/2] mm/hmm/test: add self tests for HMM

On Tue, Nov 12, 2019 at 11:45:52PM +0000, Jason Gunthorpe wrote:
> > Well, it would mean registering for the whole process address space.
> > I'll give it a try.
> 
> I'm not sure it makes much sense that this testing is essentially
> modeled after nouveau's usage which is very strange compared to the
> other drivers.

Which means we really should make the test cases fit the proper usage.
Maybe defer the tests for 5.5 and just merge the first patch for now?