From: Jason Gunthorpe <jgg-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Jerome Glisse <jglisse-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Ralph Campbell
<rcampbell-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
"amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>,
"nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>,
Felix Kuehling <Felix.Kuehling-5C7GfCeVMHo@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org"
<dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>,
"linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org"
<linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>,
Ben Skeggs <bskeggs-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Dan Williams
<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
Subject: Re: [PATCH 04/15] mm: remove the pgmap field from struct hmm_vma_walk
Date: Fri, 16 Aug 2019 00:43:07 +0000 [thread overview]
Message-ID: <20190816004303.GC9929@mellanox.com> (raw)
In-Reply-To: <20190815205132.GC25517-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
On Thu, Aug 15, 2019 at 04:51:33PM -0400, Jerome Glisse wrote:
> struct page. In this case any way we can update the
> nouveau_dmem_page() to check that page page->pgmap == the
> expected pgmap.
I was also wondering if that is a problem.. just blindly doing a
container_of on the page->pgmap does seem like it assumes that only
this driver is using DEVICE_PRIVATE.
It seems like something missing in hmm_range_fault, it should be told
what DEVICE_PRIVATE is acceptable to trigger HMM_PFN_DEVICE_PRIVATE
and fault all others?
Jason
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next prev parent reply other threads:[~2019-08-16 0:43 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-06 16:05 hmm cleanups, v2 Christoph Hellwig
2019-08-06 16:05 ` [PATCH 01/15] amdgpu: remove -EAGAIN handling for hmm_range_fault Christoph Hellwig
2019-08-06 16:05 ` [PATCH 02/15] amdgpu: don't initialize range->list in amdgpu_hmm_init_range Christoph Hellwig
[not found] ` <20190806160554.14046-1-hch-jcswGhMUV9g@public.gmane.org>
2019-08-06 16:05 ` [PATCH 03/15] nouveau: pass struct nouveau_svmm to nouveau_range_fault Christoph Hellwig
2019-08-06 18:02 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 07/15] mm: remove the page_shift member from struct hmm_range Christoph Hellwig
[not found] ` <20190806160554.14046-8-hch-jcswGhMUV9g@public.gmane.org>
2019-08-07 17:51 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 08/15] mm: remove the mask variable in hmm_vma_walk_hugetlb_entry Christoph Hellwig
2019-08-06 18:02 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 09/15] mm: don't abuse pte_index() in hmm_vma_handle_pmd Christoph Hellwig
2019-08-07 17:18 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 10/15] mm: only define hmm_vma_walk_pud if needed Christoph Hellwig
2019-08-06 16:05 ` [PATCH 12/15] mm: cleanup the hmm_vma_walk_hugetlb_entry stub Christoph Hellwig
2019-08-06 16:05 ` [PATCH 14/15] mm: make HMM_MIRROR an implicit option Christoph Hellwig
2019-08-06 17:44 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 15/15] amdgpu: remove CONFIG_DRM_AMDGPU_USERPTR Christoph Hellwig
2019-08-06 17:44 ` Jason Gunthorpe
2019-08-06 17:51 ` Kuehling, Felix
2019-08-06 18:58 ` Alex Deucher
2019-08-06 20:03 ` Jason Gunthorpe
[not found] ` <20190806200356.GU11627-uk2M96/98Pc@public.gmane.org>
2019-08-07 6:57 ` Koenig, Christian
2019-08-07 11:46 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 04/15] mm: remove the pgmap field from struct hmm_vma_walk Christoph Hellwig
2019-08-07 17:45 ` Jason Gunthorpe
2019-08-07 18:47 ` Dan Williams
[not found] ` <CAPcyv4hPCuHBLhSJgZZEh0CbuuJNPLFDA3f-79FX5uVOO0yubA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-08-08 6:59 ` Christoph Hellwig
2019-08-14 1:36 ` Dan Williams
2019-08-14 7:38 ` Christoph Hellwig
2019-08-14 13:27 ` Jason Gunthorpe
2019-08-14 14:48 ` Dan Williams
2019-08-15 18:03 ` Jerome Glisse
[not found] ` <20190815180325.GA4920-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2019-08-15 19:22 ` Jason Gunthorpe
2019-08-15 19:36 ` Dan Williams
2019-08-15 19:43 ` Jerome Glisse
2019-08-15 20:12 ` Dan Williams
2019-08-15 20:33 ` Jerome Glisse
2019-08-15 20:41 ` Jason Gunthorpe
2019-08-15 20:47 ` Dan Williams
[not found] ` <CAPcyv4j_Mxbw+T+yXTMdkrMoS_uxg+TXXgTM_EPBJ8XfXKxytA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-08-16 0:40 ` Jason Gunthorpe
2019-08-16 3:54 ` Dan Williams
2019-08-16 12:24 ` Jason Gunthorpe
2019-08-16 17:21 ` Dan Williams
2019-08-16 17:28 ` Jason Gunthorpe
2019-08-16 21:10 ` Ralph Campbell
2019-08-15 20:51 ` Jerome Glisse
[not found] ` <20190815205132.GC25517-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2019-08-16 0:43 ` Jason Gunthorpe [this message]
2019-08-16 4:44 ` Christoph Hellwig
2019-08-16 12:30 ` Jason Gunthorpe
2019-08-16 12:34 ` Christoph Hellwig
[not found] ` <20190815203306.GB25517-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2019-08-16 4:41 ` Christoph Hellwig
2019-08-06 16:05 ` [PATCH 05/15] mm: remove the unused vma argument to hmm_range_dma_unmap Christoph Hellwig
2019-08-06 16:05 ` [PATCH 06/15] mm: remove superflous arguments from hmm_range_register Christoph Hellwig
2019-08-06 16:05 ` [PATCH 11/15] mm: cleanup the hmm_vma_handle_pmd stub Christoph Hellwig
2019-08-06 18:00 ` Jason Gunthorpe
2019-08-06 16:05 ` [PATCH 13/15] mm: allow HMM_MIRROR on all architectures with MMU Christoph Hellwig
2019-08-07 18:17 ` hmm cleanups, v2 Jason Gunthorpe
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