From: Jason Gunthorpe <jgg@mellanox.com>
To: Jerome Glisse <jglisse@redhat.com>
Cc: "John Hubbard" <jhubbard@nvidia.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"Ralph Campbell" <rcampbell@nvidia.com>,
"Felix.Kuehling@amd.com" <Felix.Kuehling@amd.com>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
"amd-gfx@lists.freedesktop.org" <amd-gfx@lists.freedesktop.org>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Ben Skeggs" <bskeggs@redhat.com>,
"Boris Ostrovsky" <boris.ostrovsky@oracle.com>,
"Christian König" <christian.koenig@amd.com>,
"David Zhou" <David1.Zhou@amd.com>,
"Dennis Dalessandro" <dennis.dalessandro@intel.com>,
"Juergen Gross" <jgross@suse.com>,
"Mike Marciniszyn" <mike.marciniszyn@intel.com>,
"Oleksandr Andrushchenko" <oleksandr_andrushchenko@epam.com>,
"Petr Cvek" <petrcvekcz@gmail.com>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"nouveau@lists.freedesktop.org" <nouveau@lists.freedesktop.org>,
"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
"Christoph Hellwig" <hch@infradead.org>,
"Andrea Arcangeli" <aarcange@redhat.com>,
"Michal Hocko" <mhocko@kernel.org>
Subject: Re: [PATCH v2 02/15] mm/mmu_notifier: add an interval tree notifier
Date: Fri, 8 Nov 2019 20:19:06 +0000 [thread overview]
Message-ID: <20191108201902.GM21728@mellanox.com> (raw)
In-Reply-To: <20191108020034.GA470884@redhat.com>
On Thu, Nov 07, 2019 at 09:00:34PM -0500, Jerome Glisse wrote:
> On Fri, Nov 08, 2019 at 12:32:25AM +0000, Jason Gunthorpe wrote:
> > On Thu, Nov 07, 2019 at 04:04:08PM -0500, Jerome Glisse wrote:
> > > On Thu, Nov 07, 2019 at 08:11:06PM +0000, Jason Gunthorpe wrote:
> > > > On Wed, Nov 06, 2019 at 09:08:07PM -0500, Jerome Glisse wrote:
> > > >
> > > > > >
> > > > > > Extra credit: IMHO, this clearly deserves to all be in a new mmu_range_notifier.h
> > > > > > header file, but I know that's extra work. Maybe later as a follow-up patch,
> > > > > > if anyone has the time.
> > > > >
> > > > > The range notifier should get the event too, it would be a waste, i think it is
> > > > > an oversight here. The release event is fine so NAK to you separate event. Event
> > > > > is really an helper for notifier i had a set of patch for nouveau to leverage
> > > > > this i need to resucite them. So no need to split thing, i would just forward
> > > > > the event ie add event to mmu_range_notifier_ops.invalidate() i failed to catch
> > > > > that in v1 sorry.
> > > >
> > > > I think what you mean is already done?
> > > >
> > > > struct mmu_range_notifier_ops {
> > > > bool (*invalidate)(struct mmu_range_notifier *mrn,
> > > > const struct mmu_notifier_range *range,
> > > > unsigned long cur_seq);
> > >
> > > Yes it is sorry, i got confuse with mmu_range_notifier and mmu_notifier_range :)
> > > It is almost a palyndrome structure ;)
> >
> > Lets change the name then, this is clearly not working. I'll reflow
> > everything tomorrow
>
> Semantic patch to do that run from your linux kernel directory with your patch
> applied (you can run it one patch after the other and the git commit -a --fixup HEAD)
>
> spatch --sp-file name-of-the-file-below --dir . --all-includes --in-place
>
> %< ------------------------------------------------------------------
> @@
> @@
> struct
> -mmu_range_notifier
> +mmu_interval_notifier
>
> @@
> @@
> struct
> -mmu_range_notifier
> +mmu_interval_notifier
> {...};
>
> // Change mrn name to mmu_in
> @@
> struct mmu_interval_notifier *mrn;
> @@
> -mrn
> +mmu_in
>
> @@
> identifier fn;
> @@
> fn(...,
> -struct mmu_interval_notifier *mrn,
> +struct mmu_interval_notifier *mmu_in,
> ...) {...}
>
> You need coccinelle (which provides spatch). It is untested but it should work
> also i could not come up with a nice name to update mrn as min is way too
> confusing. If you have better name feel free to use it.
I used 'mni' as we already use 'mn' to refer to the notifier, and
'mmu_in' looks like some input parameter or something
It mostly worked, lots of comments to fix manually though:
https://github.com/jgunthorpe/linux/commits/mmu_notifier
Thanks,
Jason
next prev parent reply other threads:[~2019-11-08 20:19 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-28 20:10 [PATCH v2 00/15] Consolidate the mmu notifier interval_tree and locking Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 01/15] mm/mmu_notifier: define the header pre-processor parts even if disabled Jason Gunthorpe
2019-11-05 21:23 ` John Hubbard
2019-11-06 13:36 ` Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 02/15] mm/mmu_notifier: add an interval tree notifier Jason Gunthorpe
2019-10-29 22:04 ` Kuehling, Felix
2019-10-29 22:56 ` Jason Gunthorpe
2019-11-07 0:23 ` John Hubbard
2019-11-07 2:08 ` Jerome Glisse
2019-11-07 20:11 ` Jason Gunthorpe
2019-11-07 21:04 ` Jerome Glisse
2019-11-08 0:32 ` Jason Gunthorpe
2019-11-08 2:00 ` Jerome Glisse
2019-11-08 20:19 ` Jason Gunthorpe [this message]
2019-11-07 20:06 ` Jason Gunthorpe
2019-11-07 20:53 ` John Hubbard
2019-11-08 15:26 ` Jason Gunthorpe
2019-11-08 6:33 ` Christoph Hellwig
2019-11-08 13:43 ` Jerome Glisse
2019-10-28 20:10 ` [PATCH v2 03/15] mm/hmm: allow hmm_range to be used with a mmu_range_notifier or hmm_mirror Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 04/15] mm/hmm: define the pre-processor related parts of hmm.h even if disabled Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 05/15] RDMA/odp: Use mmu_range_notifier_insert() Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 06/15] RDMA/hfi1: Use mmu_range_notifier_inset for user_exp_rcv Jason Gunthorpe
2019-10-29 12:19 ` Dennis Dalessandro
2019-10-29 12:51 ` Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 07/15] drm/radeon: use mmu_range_notifier_insert Jason Gunthorpe
2019-10-29 7:48 ` Koenig, Christian
2019-10-28 20:10 ` [PATCH v2 08/15] xen/gntdev: Use select for DMA_SHARED_BUFFER Jason Gunthorpe
2019-11-01 18:26 ` Jason Gunthorpe
2019-11-05 14:44 ` Jürgen Groß
2019-11-07 9:39 ` Jürgen Groß
2019-10-28 20:10 ` [PATCH v2 09/15] xen/gntdev: use mmu_range_notifier_insert Jason Gunthorpe
2019-10-30 16:55 ` Boris Ostrovsky
2019-11-01 17:48 ` Jason Gunthorpe
2019-11-01 18:51 ` Boris Ostrovsky
2019-11-01 19:17 ` Jason Gunthorpe
2019-11-04 22:03 ` Boris Ostrovsky
2019-11-05 2:31 ` Jason Gunthorpe
2019-11-05 15:16 ` Boris Ostrovsky
2019-11-07 20:36 ` Jason Gunthorpe
2019-11-07 22:54 ` Boris Ostrovsky
2019-11-08 14:53 ` Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 10/15] nouveau: use mmu_notifier directly for invalidate_range_start Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 11/15] nouveau: use mmu_range_notifier instead of hmm_mirror Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 13/15] drm/amdgpu: Use mmu_range_insert " Jason Gunthorpe
2019-10-29 7:51 ` Koenig, Christian
2019-10-29 13:59 ` Jason Gunthorpe
2019-10-29 22:14 ` Kuehling, Felix
2019-10-29 23:09 ` Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 14/15] drm/amdgpu: Use mmu_range_notifier " Jason Gunthorpe
2019-10-29 19:22 ` Yang, Philip
2019-10-29 19:25 ` Jason Gunthorpe
2019-11-01 14:44 ` Yang, Philip
2019-11-01 15:12 ` Jason Gunthorpe
2019-11-01 15:59 ` Yang, Philip
2019-11-01 17:42 ` Jason Gunthorpe
2019-11-01 19:19 ` Jason Gunthorpe
2019-11-01 19:45 ` Yang, Philip
2019-11-01 19:50 ` Yang, Philip
2019-11-01 19:51 ` Jason Gunthorpe
2019-11-01 18:21 ` Jason Gunthorpe
2019-11-01 18:34 ` [PATCH v2a " Jason Gunthorpe
2019-10-28 20:10 ` [PATCH v2 15/15] mm/hmm: remove hmm_mirror and related Jason Gunthorpe
[not found] ` <20191028201032.6352-13-jgg@ziepe.ca>
2019-10-29 7:49 ` [PATCH v2 12/15] drm/amdgpu: Call find_vma under mmap_sem Koenig, Christian
2019-10-29 16:28 ` Kuehling, Felix
2019-10-29 13:07 ` Christian König
2019-10-29 17:19 ` Jason Gunthorpe
2019-11-01 19:54 ` [PATCH v2 00/15] Consolidate the mmu notifier interval_tree and locking Jason Gunthorpe
2019-11-01 20:54 ` Ralph Campbell
2019-11-04 20:40 ` Jason Gunthorpe
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