From 6be1ff430dab9fc047762b10b2c9669399ea1f37 Mon Sep 17 00:00:00 2001 From: Guo Ren Date: Tue, 10 Jan 2023 03:04:19 -0500 Subject: [PATCH] riscv: pgtable: Fixup comment for KERN_VIRT_SIZE KERN_VIRT_SIZE is 1/4 of the entries of the page global directory, not half. Fixes: f7ae02333d13 ("riscv: Move KASAN mapping next to the kernel mapping") Signed-off-by: Guo Ren Signed-off-by: Guo Ren Cc: Alexandre Ghiti Reviewed-by: Alexandre Ghiti Link: https://lore.kernel.org/r/20230110080419.931185-1-guoren@kernel.org Signed-off-by: Palmer Dabbelt --- arch/riscv/include/asm/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 4eba9a9..2a88362 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -31,7 +31,7 @@ #define PTRS_PER_PTE (PAGE_SIZE / sizeof(pte_t)) /* - * Half of the kernel address space (half of the entries of the page global + * Half of the kernel address space (1/4 of the entries of the page global * directory) is for the direct mapping. */ #define KERN_VIRT_SIZE ((PTRS_PER_PGD / 2 * PGDIR_SIZE) / 2) -- 2.7.4