huge_mm.h File Reference

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Macros
#define	HPAGE_PMD_ORDER   (HPAGE_PMD_SHIFT-PAGE_SHIFT)
#define	HPAGE_PMD_NR   (1<<HPAGE_PMD_ORDER)
#define	HPAGE_PMD_SHIFT   ({ BUILD_BUG(); 0; })
#define	HPAGE_PMD_MASK   ({ BUILD_BUG(); 0; })
#define	HPAGE_PMD_SIZE   ({ BUILD_BUG(); 0; })
#define	hpage_nr_pages(x)   1
#define	transparent_hugepage_enabled(__vma)   0
#define	transparent_hugepage_flags   0UL
#define	split_huge_page_pmd(__mm, __pmd)   do { } while (0)
#define	wait_split_huge_page(__anon_vma, __pmd)   do { } while (0)
#define	compound_trans_head(page)   compound_head(page)

Enumerations
enum	transparent_hugepage_flag {   TRANSPARENT_HUGEPAGE_FLAG, TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG, TRANSPARENT_HUGEPAGE_DEFRAG_FLAG, TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG,   TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG }
enum	page_check_address_pmd_flag { PAGE_CHECK_ADDRESS_PMD_FLAG, PAGE_CHECK_ADDRESS_PMD_NOTSPLITTING_FLAG, PAGE_CHECK_ADDRESS_PMD_SPLITTING_FLAG }

Functions
int	do_huge_pmd_anonymous_page (struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pmd_t *pmd, unsigned int flags)
int	copy_huge_pmd (struct mm_struct *dst_mm, struct mm_struct *src_mm, pmd_t *dst_pmd, pmd_t *src_pmd, unsigned long addr, struct vm_area_struct *vma)
int	do_huge_pmd_wp_page (struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, pmd_t *pmd, pmd_t orig_pmd)
struct page *	follow_trans_huge_pmd (struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd, unsigned int flags)
int	zap_huge_pmd (struct mmu_gather *tlb, struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr)
int	mincore_huge_pmd (struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, unsigned long end, unsigned char *vec)
int	move_huge_pmd (struct vm_area_struct *vma, struct vm_area_struct *new_vma, unsigned long old_addr, unsigned long new_addr, unsigned long old_end, pmd_t *old_pmd, pmd_t *new_pmd)
int	change_huge_pmd (struct vm_area_struct *vma, pmd_t *pmd, unsigned long addr, pgprot_t newprot)
pmd_t *	page_check_address_pmd (struct page *page, struct mm_struct *mm, unsigned long address, enum page_check_address_pmd_flag flag)

Macro Definition Documentation

#define compound_trans_head

(

page

)

compound_head(page)

Definition at line 180 of file huge_mm.h.

#define hpage_nr_pages

(

x

)

1

Definition at line 167 of file huge_mm.h.

#define HPAGE_PMD_MASK   ({ BUILD_BUG(); 0; })

Definition at line 164 of file huge_mm.h.

#define HPAGE_PMD_NR   (1<<HPAGE_PMD_ORDER)

Definition at line 54 of file huge_mm.h.

#define HPAGE_PMD_ORDER   (HPAGE_PMD_SHIFT-PAGE_SHIFT)

Definition at line 53 of file huge_mm.h.

#define HPAGE_PMD_SHIFT   ({ BUILD_BUG(); 0; })

Definition at line 163 of file huge_mm.h.

#define HPAGE_PMD_SIZE   ({ BUILD_BUG(); 0; })

Definition at line 165 of file huge_mm.h.

#define split_huge_page_pmd	(		__mm,
			__pmd
	)		do { } while (0)

Definition at line 176 of file huge_mm.h.

#define transparent_hugepage_enabled

(

__vma

)

0

Definition at line 169 of file huge_mm.h.

#define transparent_hugepage_flags   0UL

Definition at line 171 of file huge_mm.h.

#define wait_split_huge_page	(		__anon_vma,
			__pmd
	)		do { } while (0)

Definition at line 178 of file huge_mm.h.

Enumeration Type Documentation

enum page_check_address_pmd_flag

Enumerator:

PAGE_CHECK_ADDRESS_PMD_FLAG
PAGE_CHECK_ADDRESS_PMD_NOTSPLITTING_FLAG
PAGE_CHECK_ADDRESS_PMD_SPLITTING_FLAG

Definition at line 43 of file huge_mm.h.

enum transparent_hugepage_flag

Enumerator:

TRANSPARENT_HUGEPAGE_FLAG
TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG
TRANSPARENT_HUGEPAGE_DEFRAG_FLAG
TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG
TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG

Definition at line 32 of file huge_mm.h.

Function Documentation

int change_huge_pmd	(	struct vm_area_struct *	vma,
		pmd_t *	pmd,
		unsigned long	addr,
		pgprot_t	newprot
	)

Definition at line 1101 of file huge_memory.c.

int copy_huge_pmd	(	struct mm_struct *	dst_mm,
		struct mm_struct *	src_mm,
		pmd_t *	dst_pmd,
		pmd_t *	src_pmd,
		unsigned long	addr,
		struct vm_area_struct *	vma
	)

Definition at line 728 of file huge_memory.c.

int do_huge_pmd_anonymous_page	(	struct mm_struct *	mm,
		struct vm_area_struct *	vma,
		unsigned long	address,
		pmd_t *	pmd,
		unsigned int	flags
	)

Definition at line 674 of file huge_memory.c.

int do_huge_pmd_wp_page	(	struct mm_struct *	mm,
		struct vm_area_struct *	vma,
		unsigned long	address,
		pmd_t *	pmd,
		pmd_t	orig_pmd
	)

Definition at line 882 of file huge_memory.c.

struct page* follow_trans_huge_pmd ( struct vm_area_struct *  vma, unsigned long  addr, pmd_t *  pmd, unsigned int  flags  )

read

Definition at line 975 of file huge_memory.c.

int mincore_huge_pmd	(	struct vm_area_struct *	vma,
		pmd_t *	pmd,
		unsigned long	addr,
		unsigned long	end,
		unsigned char *	vec
	)

Definition at line 1046 of file huge_memory.c.

int move_huge_pmd	(	struct vm_area_struct *	vma,
		struct vm_area_struct *	new_vma,
		unsigned long	old_addr,
		unsigned long	new_addr,
		unsigned long	old_end,
		pmd_t *	old_pmd,
		pmd_t *	new_pmd
	)

Definition at line 1065 of file huge_memory.c.

pmd_t* page_check_address_pmd	(	struct page *	page,
		struct mm_struct *	mm,
		unsigned long	address,
		enum page_check_address_pmd_flag	flag
	)

Definition at line 1144 of file huge_memory.c.

int zap_huge_pmd	(	struct mmu_gather *	tlb,
		struct vm_area_struct *	vma,
		pmd_t *	pmd,
		unsigned long	addr
	)

Definition at line 1020 of file huge_memory.c.