linux-kernel - Re: [PATCH 0/5] mm/hmm: HMM documentation updates and code fixes

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Message-ID: <20190513181000.GA30726@redhat.com>
Date:   Mon, 13 May 2019 14:10:00 -0400
From:   Jerome Glisse <jglisse@...hat.com>
To:     Ralph Campbell <rcampbell@...dia.com>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        John Hubbard <jhubbard@...dia.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Balbir Singh <bsingharora@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Matthew Wilcox <willy@...radead.org>,
        Souptick Joarder <jrdr.linux@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/5] mm/hmm: HMM documentation updates and code fixes

On Mon, May 13, 2019 at 10:26:59AM -0700, Ralph Campbell wrote:
> 
> 
> On 5/12/19 8:08 AM, Jerome Glisse wrote:
> > On Mon, May 06, 2019 at 04:29:37PM -0700, rcampbell@...dia.com wrote:
> > > From: Ralph Campbell <rcampbell@...dia.com>
> > > 
> > > I hit a use after free bug in hmm_free() with KASAN and then couldn't
> > > stop myself from cleaning up a bunch of documentation and coding style
> > > changes. So the first two patches are clean ups, the last three are
> > > the fixes.
> > > 
> > > Ralph Campbell (5):
> > >    mm/hmm: Update HMM documentation
> > >    mm/hmm: Clean up some coding style and comments
> > >    mm/hmm: Use mm_get_hmm() in hmm_range_register()
> > >    mm/hmm: hmm_vma_fault() doesn't always call hmm_range_unregister()
> > >    mm/hmm: Fix mm stale reference use in hmm_free()
> > 
> > This patchset does not seems to be on top of
> > https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-5.2-v3
> > 
> > So here we are out of sync, on documentation and code. If you
> > have any fix for https://cgit.freedesktop.org/~glisse/linux/log/?h=hmm-5.2-v3
> > then please submit something on top of that.
> > 
> > Cheers,
> > Jérôme
> > 
> > > 
> > >   Documentation/vm/hmm.rst | 139 ++++++++++++++++++-----------------
> > >   include/linux/hmm.h      |  84 ++++++++++------------
> > >   mm/hmm.c                 | 151 ++++++++++++++++-----------------------
> > >   3 files changed, 174 insertions(+), 200 deletions(-)
> > > 
> > > -- 
> > > 2.20.1
> 
> The patches are based on top of Andrew's mmotm tree
> git://git.cmpxchg.org/linux-mmotm.git v5.1-rc6-mmotm-2019-04-25-16-30.
> They apply cleanly to that git tag as well as your hmm-5.2-v3 branch
> so I guess I am confused where we are out of sync.

No disregard my email, i was trying to apply on top of wrong
branch yesterday morning while catching up on big backlog of
email. Failure was on my side.

Cheers,
Jérôme