On 5/10/21 8:19 PM, Dan Williams wrote:
> On Thu, May 6, 2021 at 4:02 AM Joao Martins wrote:
> [..]
+static pte_t * __meminit vmemmap_lookup_address(unsigned long addr)
>>>
>>> I think this can be replaced with a call to follow_pte(_mm...).
>>>
>>
>> Ah, of course! That would shorten things
On Thu, May 6, 2021 at 4:02 AM Joao Martins wrote:
[..]
> >> +static pte_t * __meminit vmemmap_lookup_address(unsigned long addr)
> >
> > I think this can be replaced with a call to follow_pte(_mm...).
> >
>
> Ah, of course! That would shorten things up too.
Now that I look closely, I notice
On 5/6/21 2:18 AM, Dan Williams wrote:
> On Thu, Mar 25, 2021 at 4:10 PM Joao Martins
> wrote:
>>
>> A compound pagemap is a dev_pagemap with @align > PAGE_SIZE and it
>> means that pages are mapped at a given huge page alignment and utilize
>> uses compound pages as opposed to order-0 pages.
>>
On Thu, Mar 25, 2021 at 4:10 PM Joao Martins wrote:
>
> A compound pagemap is a dev_pagemap with @align > PAGE_SIZE and it
> means that pages are mapped at a given huge page alignment and utilize
> uses compound pages as opposed to order-0 pages.
>
> To minimize struct page overhead we take
A compound pagemap is a dev_pagemap with @align > PAGE_SIZE and it
means that pages are mapped at a given huge page alignment and utilize
uses compound pages as opposed to order-0 pages.
To minimize struct page overhead we take advantage of the fact that
most tail pages look the same (except the
