> On February 21, 2024 3:27 AM David Hildenbrand wrote > On 21.02.24 08:13, Christophe Leroy wrote: > > Le 20/02/2024 à 21:32, Maxwell Bland a écrit : > >> > >> While other descriptors (e.g. pud) allow allocations conditional on > >> which virtual address is allocated, pmd descriptor allocations do not. > >> However, adding support for this is straightforward and is beneficial to > >> future kernel development targeting the PMD memory granularity. > >> > >> As many architectures already implement pmd_populate_kernel in an > >> address-generic manner, it is necessary to roll out support > >> incrementally. For this purpose a preprocessor flag, > > > > Is it really worth it ? It is only 48 call sites that need to be > > updated. It would avoid that processor flag and avoid introducing that > > pmd_populate_kernel_at() in kernel core. > > +1, let's avoid that if possible. Will fix, thank you! Maxwell
