This series fixes pfn_valid() for ZONE_DEVICE based memory and also improves its performance for normal hotplug memory. While here, it also reorganizes pfn_valid() on CONFIG_SPARSEMEM. This series is based on v5.11-rc6.
Question - should pfn_section_valid() be tested both for boot and non boot memory as well ? Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> Cc: Ard Biesheuvel <[email protected]> Cc: Mark Rutland <[email protected]> Cc: James Morse <[email protected]> Cc: Robin Murphy <[email protected]> Cc: Jérôme Glisse <[email protected]> Cc: Dan Williams <[email protected]> Cc: David Hildenbrand <[email protected]> Cc: Mike Rapoport <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Changes in V2: - Dropped pfn_valid() bifurcation based on CONFIG_SPARSEMEM - Used PFN_PHYS() and PHYS_PFN() instead of __pfn_to_phys() and __phys_to_pfn() - Moved __pfn_to_section() inside #ifdef CONFIG_SPARSEMEM with a { } construct Changes in V1: https://lore.kernel.org/linux-mm/[email protected]/ - Test pfn_section_valid() for non boot memory Changes in RFC: https://lore.kernel.org/linux-arm-kernel/[email protected]/ Anshuman Khandual (2): arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory arm64/mm: Reorganize pfn_valid() arch/arm64/mm/init.c | 28 +++++++++++++++++++++++++--- 1 file changed, 25 insertions(+), 3 deletions(-) -- 2.20.1
