On 04/04/2017 07:34 PM, Aneesh Kumar K.V wrote: > The defaul implementation prints warning and returns NULL. We will add ppc64 > support in later patches.
The description is not sufficient. The patch makes the entire follow page mask function aware of hugepd based implementation at PGD, PUD and PMD level. It also provides default follow_huge_pd() function which in absence of architecture support prints warning and returns NULL. The commit description should contain all these details.
