x86/fixmap: Cleanup outdated comments

Remove stale comments and fix the not longer valid pagetable entry
reference.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190809114612.2569-1-caoj.fnst@cn.fujitsu.com

diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 9da8cccdf3fb59d2fa9eb0f895f261709bc50102..0c47aa82e2e22ff01ca7ecced5dda7f5e41f971e 100644 (file)
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -42,8 +42,7 @@
  * Because of this, FIXADDR_TOP x86 integration was left as later work.
  */
 #ifdef CONFIG_X86_32
-/* used by vmalloc.c, vsyscall.lds.S.
- *
+/*
  * Leave one empty page between vmalloc'ed areas and
  * the start of the fixmap.
  */
@@ -120,7 +119,7 @@ enum fixed_addresses {
         * before ioremap() is functional.
         *
         * If necessary we round it up to the next 512 pages boundary so
-        * that we can have a single pgd entry and a single pte table:
+        * that we can have a single pmd entry and a single pte table:
         */
 #define NR_FIX_BTMAPS          64
 #define FIX_BTMAPS_SLOTS       8