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Message-ID: <20190723152737.GO15331@mellanox.com>
Date:   Tue, 23 Jul 2019 15:27:41 +0000
From:   Jason Gunthorpe <jgg@...lanox.com>
To:     Christoph Hellwig <hch@....de>
CC:     Jérôme Glisse <jglisse@...hat.com>,
        Ben Skeggs <bskeggs@...hat.com>,
        Ralph Campbell <rcampbell@...dia.com>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "nouveau@...ts.freedesktop.org" <nouveau@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: hmm_range_fault related fixes and legacy API removal v2

On Mon, Jul 22, 2019 at 11:44:20AM +0200, Christoph Hellwig wrote:
> Hi Jérôme, Ben and Jason,
> 
> below is a series against the hmm tree which fixes up the mmap_sem
> locking in nouveau and while at it also removes leftover legacy HMM APIs
> only used by nouveau.
> 
> The first 4 patches are a bug fix for nouveau, which I suspect should
> go into this merge window even if the code is marked as staging, just
> to avoid people copying the breakage.

Ignoring the STAGING issue I've tried to use the same guideline as for
-stable for -rc .. 

So this is a real problem, we definitely hit the locking bugs if we
retry/etc under stress, so I would be OK to send it to Linus for
early-rc.

However, it doesn't look like the 1st patch is fixing a current bug
though, the only callers uses blocking = true, so just the middle
three are -rc?

Thanks,
Jason

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