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authorGuo Ren <[email protected]>2023-01-10 03:04:19 -0500
committerPalmer Dabbelt <[email protected]>2023-01-24 16:19:07 -0800
commit6be1ff430dab9fc047762b10b2c9669399ea1f37 (patch)
treed022c58ee6ffe49353dd92e928d781d343a416b8
parent61a9b7129070e07c207d89fffbce577223507327 (diff)
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 <[email protected]> Signed-off-by: Guo Ren <[email protected]> Cc: Alexandre Ghiti <[email protected]> Reviewed-by: Alexandre Ghiti <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Palmer Dabbelt <[email protected]>
-rw-r--r--arch/riscv/include/asm/pgtable.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index 4eba9a98d0e3..2a88362dffa5 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)