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mm: make the __PAGETABLE_PxD_FOLDED defines non-empty 

Change the currently empty defines for __PAGETABLE_PMD_FOLDED,
__PAGETABLE_PUD_FOLDED and __PAGETABLE_P4D_FOLDED to return 1.
This makes it possible to use __is_defined() to test if the
preprocessor define exists.

Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2018-10-31 12:11:48 +01:00
parent 5a2e1853d6
commit a8874e7e8a
11 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/include/asm/pgtable-2level.h
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@ -10,7 +10,7 @@
#ifndef _ASM_PGTABLE_2LEVEL_H
#define _ASM_PGTABLE_2LEVEL_H
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
/*
* Hardware-wise, we have a two level page table structure, where the first

4
arch/m68k/include/asm/pgtable_mm.h
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@ -55,12 +55,12 @@
*/
#ifdef CONFIG_SUN3
#define PTRS_PER_PTE 16
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#define PTRS_PER_PMD 1
#define PTRS_PER_PGD 2048
#elif defined(CONFIG_COLDFIRE)
#define PTRS_PER_PTE 512
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#define PTRS_PER_PMD 1
#define PTRS_PER_PGD 1024
#else

2
arch/microblaze/include/asm/pgtable.h
View File

@ -63,7 +63,7 @@ extern int mem_init_done;
#include <asm-generic/4level-fixup.h>
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#ifdef __KERNEL__
#ifndef __ASSEMBLY__

2
arch/nds32/include/asm/pgtable.h
View File

@ -4,7 +4,7 @@
#ifndef _ASMNDS32_PGTABLE_H
#define _ASMNDS32_PGTABLE_H
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#include <asm-generic/4level-fixup.h>
#include <asm-generic/sizes.h>

2
arch/parisc/include/asm/pgtable.h
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@ -111,7 +111,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
#if CONFIG_PGTABLE_LEVELS == 3
#define BITS_PER_PMD (PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY)
#else
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
#define BITS_PER_PMD 0
#endif
#define PTRS_PER_PMD (1UL << BITS_PER_PMD)

2
include/asm-generic/4level-fixup.h
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@ -3,7 +3,7 @@
#define _4LEVEL_FIXUP_H
#define __ARCH_HAS_4LEVEL_HACK
#define __PAGETABLE_PUD_FOLDED
#define __PAGETABLE_PUD_FOLDED 1
#define PUD_SHIFT PGDIR_SHIFT
#define PUD_SIZE PGDIR_SIZE

2
include/asm-generic/5level-fixup.h
View File

@ -3,7 +3,7 @@
#define _5LEVEL_FIXUP_H
#define __ARCH_HAS_5LEVEL_HACK
#define __PAGETABLE_P4D_FOLDED
#define __PAGETABLE_P4D_FOLDED 1
#define P4D_SHIFT PGDIR_SHIFT
#define P4D_SIZE PGDIR_SIZE

2
include/asm-generic/pgtable-nop4d-hack.h
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@ -5,7 +5,7 @@
#ifndef __ASSEMBLY__
#include <asm-generic/5level-fixup.h>
#define __PAGETABLE_PUD_FOLDED
#define __PAGETABLE_PUD_FOLDED 1
/*
* Having the pud type consist of a pgd gets the size right, and allows

2
include/asm-generic/pgtable-nop4d.h
View File

@ -4,7 +4,7 @@
#ifndef __ASSEMBLY__
#define __PAGETABLE_P4D_FOLDED
#define __PAGETABLE_P4D_FOLDED 1
typedef struct { pgd_t pgd; } p4d_t;

2
include/asm-generic/pgtable-nopmd.h
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@ -8,7 +8,7 @@
struct mm_struct;
#define __PAGETABLE_PMD_FOLDED
#define __PAGETABLE_PMD_FOLDED 1
/*
* Having the pmd type consist of a pud gets the size right, and allows

2
include/asm-generic/pgtable-nopud.h
View File

@ -9,7 +9,7 @@
#else
#include <asm-generic/pgtable-nop4d.h>
#define __PAGETABLE_PUD_FOLDED
#define __PAGETABLE_PUD_FOLDED 1
/*
* Having the pud type consist of a p4d gets the size right, and allows