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A Single RISC-V Fix for 5.11-rc6

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* A fix to avoid initializing max_mapnr to be too large, which may
   manifest on NUMA systems.
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Merge tag 'riscv-for-linus-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fix from Palmer Dabbelt:
 "A fix to avoid initializing max_mapnr to be too large, which may
  manifest on NUMA systems"

* tag 'riscv-for-linus-5.11-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fixup pfn_valid error with wrong max_mapnr
This commit is contained in:
Linus Torvalds 2021-01-30 11:46:27 -08:00
commit e37c0fbabd
1 changed files with 1 additions and 1 deletions
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2
arch/riscv/mm/init.c
View file

@ -196,7 +196,7 @@ void __init setup_bootmem(void)
max_pfn = PFN_DOWN(dram_end);
max_low_pfn = max_pfn;
dma32_phys_limit = min(4UL * SZ_1G, (unsigned long)PFN_PHYS(max_low_pfn));
set_max_mapnr(max_low_pfn);
set_max_mapnr(max_low_pfn - ARCH_PFN_OFFSET);
#ifdef CONFIG_BLK_DEV_INITRD
setup_initrd();