Messages in this thread | | | From | Anshuman Khandual <> | Subject | [PATCH V2 0/2] arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory | Date | Tue, 2 Feb 2021 09:41:52 +0530 |
| |
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 <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: James Morse <james.morse@arm.com> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org
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/1611905986-20155-1-git-send-email-anshuman.khandual@arm.com/
- Test pfn_section_valid() for non boot memory
Changes in RFC:
https://lore.kernel.org/linux-arm-kernel/1608621144-4001-1-git-send-email-anshuman.khandual@arm.com/
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
| |