On Tue, Jul 15, 2025 at 03:23:48PM +0200, David Hildenbrand wrote: > Let's reduce the code duplication and factor out the non-pte/pmd related > magic into vm_normal_page_pfn(). > > To keep it simpler, check the pfn against both zero folios. We could > optimize this, but as it's only for the !CONFIG_ARCH_HAS_PTE_SPECIAL > case, it's not a compelling micro-optimization. > > With CONFIG_ARCH_HAS_PTE_SPECIAL we don't have to check anything else, > really. > > It's a good question if we can even hit the !CONFIG_ARCH_HAS_PTE_SPECIAL > scenario in the PMD case in practice: but doesn't really matter, as > it's now all unified in vm_normal_page_pfn(). > > Add kerneldoc for all involved functions. > > No functional change intended. > > Signed-off-by: David Hildenbrand <da...@redhat.com>
Reviewed-by: Oscar Salvador <osalva...@suse.de> -- Oscar Salvador SUSE Labs
