riscv: Ensure page table writes are flushed when initializing KASAN vmalloc

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Make sure that writes to kernel page table during KASAN vmalloc
initialization are made visible by adding a sfence.vma.

Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Fixes: e178d670f2 ("riscv/kasan: add KASAN_VMALLOC support")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Alexandre Ghiti 2021-03-13 03:45:04 -05:00 • committed by Palmer Dabbelt

parent ce989f1472

commit f3773dd031

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arch/riscv/mm/kasan_init.c

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