On Tue 10-12-19 16:52:31, Logan Gunthorpe wrote:
[...]
> In my opinion, having a coder and reviewer see PAGE_KERNEL and ask if
> that makes sense is a benefit. Having it hidden because we don't want
> people to think about it is worse, harder to understand and results in
> bugs that are more
On 2019-12-10 4:25 a.m., David Hildenbrand wrote:
> On 10.12.19 11:34, Michal Hocko wrote:
>> On Tue 10-12-19 11:09:46, David Hildenbrand wrote:
>>> On 10.12.19 11:04, Michal Hocko wrote:
On Mon 09-12-19 12:43:40, Dan Williams wrote:
> On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe
On 10.12.19 11:34, Michal Hocko wrote:
> On Tue 10-12-19 11:09:46, David Hildenbrand wrote:
>> On 10.12.19 11:04, Michal Hocko wrote:
>>> On Mon 09-12-19 12:43:40, Dan Williams wrote:
On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe
wrote:
>
>
>
> On 2019-12-09 12:23
On Tue 10-12-19 11:09:46, David Hildenbrand wrote:
> On 10.12.19 11:04, Michal Hocko wrote:
> > On Mon 09-12-19 12:43:40, Dan Williams wrote:
> >> On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe
> >> wrote:
> >>>
> >>>
> >>>
> >>> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> On
On 10.12.19 11:04, Michal Hocko wrote:
> On Mon 09-12-19 12:43:40, Dan Williams wrote:
>> On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe wrote:
>>>
>>>
>>>
>>> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
On 09.12.19 20:13, Logan Gunthorpe wrote:
> [...]
> #ifdef
On Mon 09-12-19 12:43:40, Dan Williams wrote:
> On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe wrote:
> >
> >
> >
> > On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> > > On 09.12.19 20:13, Logan Gunthorpe wrote:
[...]
> > >> #ifdef CONFIG_MEMORY_HOTPLUG
> > >> -int arch_add_memory(int nid,
On Mon 09-12-19 14:24:22, Logan Gunthorpe wrote:
>
>
> On 2019-12-09 1:41 p.m., Michal Hocko wrote:
> > On Mon 09-12-19 13:24:19, Logan Gunthorpe wrote:
> >>
> >>
> >> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> >>> On 09.12.19 20:13, Logan Gunthorpe wrote:
> devm_memremap_pages()
On 2019-12-09 2:00 p.m., Dan Williams wrote:
Can we fiddle that into "struct mhp_restrictions" instead?
>>>
>>> Yes, if that's what people want, it's pretty trivial to do. I chose not
>>> to do it that way because it doesn't get passed down to add_pages() and
>>> it's not really a
On 2019-12-09 1:41 p.m., Michal Hocko wrote:
> On Mon 09-12-19 13:24:19, Logan Gunthorpe wrote:
>>
>>
>> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
>>> On 09.12.19 20:13, Logan Gunthorpe wrote:
devm_memremap_pages() is currently used by the PCI P2PDMA code to create
struct
On Mon, Dec 9, 2019 at 12:47 PM Michal Hocko wrote:
>
> On Mon 09-12-19 13:24:19, Logan Gunthorpe wrote:
> >
> >
> > On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> > > On 09.12.19 20:13, Logan Gunthorpe wrote:
> > >> devm_memremap_pages() is currently used by the PCI P2PDMA code to create
>
> Am 09.12.2019 um 21:43 schrieb Dan Williams :
>
> On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe wrote:
>>
>>
>>
>>> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
>>> On 09.12.19 20:13, Logan Gunthorpe wrote:
devm_memremap_pages() is currently used by the PCI P2PDMA code to
On Mon, Dec 9, 2019 at 12:24 PM Logan Gunthorpe wrote:
>
>
>
> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> > On 09.12.19 20:13, Logan Gunthorpe wrote:
> >> devm_memremap_pages() is currently used by the PCI P2PDMA code to create
> >> struct page mappings for IO memory. At present, these
On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> On 09.12.19 20:13, Logan Gunthorpe wrote:
>> devm_memremap_pages() is currently used by the PCI P2PDMA code to create
>> struct page mappings for IO memory. At present, these mappings are created
>> with PAGE_KERNEL which implies setting the
On Mon 09-12-19 13:24:19, Logan Gunthorpe wrote:
>
>
> On 2019-12-09 12:23 p.m., David Hildenbrand wrote:
> > On 09.12.19 20:13, Logan Gunthorpe wrote:
> >> devm_memremap_pages() is currently used by the PCI P2PDMA code to create
> >> struct page mappings for IO memory. At present, these
devm_memremap_pages() is currently used by the PCI P2PDMA code to create
struct page mappings for IO memory. At present, these mappings are created
with PAGE_KERNEL which implies setting the PAT bits to be WB. However, on
x86, an mtrr register will typically override this and force the cache
type
On 09.12.19 20:13, Logan Gunthorpe wrote:
> devm_memremap_pages() is currently used by the PCI P2PDMA code to create
> struct page mappings for IO memory. At present, these mappings are created
> with PAGE_KERNEL which implies setting the PAT bits to be WB. However, on
> x86, an mtrr register will
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