On 2020-10-15 3:35 a.m., Borislav Petkov wrote:
On Wed, Oct 14, 2020 at 08:37:44PM -0700, Ankur Arora wrote:
I don't disagree but I think the selection of cached/uncached route should
be made where we have enough context available to be able to choose to do
this.
This could be for example, done in mm_populate() or gup where if say the
extent is larger than LLC-size, it takes the uncached path.
Are there examples where we don't know the size?
The case I was thinking of was that clear_huge_page() or faultin_page() would
know the size to a page unit, while the higher level function would know the
whole extent and could optimize differently based on that.
Thanks
Ankur
