[PATCH 0/8] memblock: improve late freeing of reserved memory
Mike Rapoport <[email protected]>
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From: "Mike Rapoport (Microsoft)" <[email protected]> Hi, Following a recent discussion about leaks in x86 EFI [1], I audited usage of memblock_free_late() and free_reserved_area() and made some imporovements how we handle late freeing of the memory allocated with memblock. [1] https://lore.kernel.org/all/ec2aaef14783869b3be6e3c253b2dcbf67dbc12a.camel@kernel.crashing.org/ Mike Rapoport (Microsoft) (8): powerpc: fadump: pair alloc_pages_exact() with free_pages_exact() powerpc: opal-core: pair alloc_pages_exact() with free_pages_exact() mm: move free_reserved_area() to mm/memblock.c memblock: make free_reserved_area() more robust memblock: extract page freeing from free_reserved_area() into a helper memblock: make free_reserved_area() update memblock if ARCH_KEEP_MEMBLOCK=y memblock, treewide: make memblock_free() handle late freeing memblock: warn when freeing reserved memory before memory map is initialized arch/arm64/mm/init.c | 3 - arch/powerpc/kernel/fadump.c | 16 +-- arch/powerpc/platforms/powernv/opal-core.c | 9 +- arch/sparc/kernel/mdesc.c | 4 +- arch/x86/kernel/setup.c | 2 +- arch/x86/platform/efi/memmap.c | 5 +- arch/x86/platform/efi/quirks.c | 2 +- drivers/firmware/efi/apple-properties.c | 2 +- drivers/of/kexec.c | 2 +- include/linux/memblock.h | 2 - init/initramfs.c | 7 -- kernel/dma/swiotlb.c | 6 +- lib/bootconfig.c | 2 +- mm/internal.h | 10 ++ mm/kfence/core.c | 4 +- mm/memblock.c | 110 ++++++++++++++------- mm/page_alloc.c | 46 --------- 17 files changed, 102 insertions(+), 130 deletions(-) base-commit: 1f318b96cc84d7c2ab792fcc0bfd42a7ca890681 -- 2.51.0