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x86/fixmap: Cleanup outdated comments

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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
This commit is contained in:
Cao jin 2019-08-09 19:46:12 +08:00 committed by Thomas Gleixner
parent 2e1da13fba
commit c84b82dd3e
1 changed files with 2 additions and 3 deletions
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5
arch/x86/include/asm/fixmap.h
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@ -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