As decribed, gup_pgd_range is a lockless pagetable walk. So, in order to
monitor against THP split/collapse with the couting method, it's necessary
to bound it with {start,end}_lockless_pgtbl_walk.
There are dummy functions, so it is not going to add any overhead on archs
that don't use this metho
On Fri, Sep 27, 2019 at 08:40:00PM -0300, Leonardo Bras wrote:
> As decribed, gup_pgd_range is a lockless pagetable walk. So, in order to
^ typo
--
Kirill A. Shutemov
On Mon, 2019-09-30 at 14:09 +0300, Kirill A. Shutemov wrote:
> On Fri, Sep 27, 2019 at 08:40:00PM -0300, Leonardo Bras wrote:
> > As decribed, gup_pgd_range is a lockless pagetable walk. So, in order to
> ^ typo
>
Fixed, thanks!
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On 9/27/19 4:40 PM, Leonardo Bras wrote:
> As decribed, gup_pgd_range is a lockless pagetable walk. So, in order to
> monitor against THP split/collapse with the couting method, it's necessary
s/couting/counting/
> to bound it with {start,end}_lockless_pgtbl_walk.
>
> There are dummy functions,
On Mon, 2019-09-30 at 14:51 -0700, John Hubbard wrote:
> On 9/27/19 4:40 PM, Leonardo Bras wrote:
> > As decribed, gup_pgd_range is a lockless pagetable walk. So, in order to
> > monitor against THP split/collapse with the couting method, it's necessary
>
> s/couting/counting/
>
Thanks, fixed fo
On 10/1/19 10:56 AM, Leonardo Bras wrote:
> On Mon, 2019-09-30 at 14:51 -0700, John Hubbard wrote:
>> On 9/27/19 4:40 PM, Leonardo Bras wrote:
...
>>> diff --git a/mm/gup.c b/mm/gup.c
>>> index 98f13ab37bac..7105c829cf44 100644
>>> --- a/mm/gup.c
>>> +++ b/mm/gup.c
>>> @@ -2325,6 +2325,7 @@ static
On Tue, 2019-10-01 at 12:04 -0700, John Hubbard wrote:
> On 10/1/19 10:56 AM, Leonardo Bras wrote:
> > On Mon, 2019-09-30 at 14:51 -0700, John Hubbard wrote:
> > > On 9/27/19 4:40 PM, Leonardo Bras wrote:
> ...
> > > > diff --git a/mm/gup.c b/mm/gup.c
> > > > index 98f13ab37bac..7105c829cf44 100644
