Release 4.12 include/linux/hugetlb.h

#ifndef _LINUX_HUGETLB_H

#define _LINUX_HUGETLB_H

#include <linux/mm_types.h>
#include <linux/mmdebug.h>
#include <linux/fs.h>
#include <linux/hugetlb_inline.h>
#include <linux/cgroup.h>
#include <linux/list.h>
#include <linux/kref.h>
#include <asm/pgtable.h>

struct ctl_table;
struct user_struct;
struct mmu_gather;

#ifdef CONFIG_HUGETLB_PAGE

#include <linux/mempolicy.h>
#include <linux/shm.h>
#include <asm/tlbflush.h>


struct hugepage_subpool {
	
spinlock_t lock;
	
long count;
	
long max_hpages;	/* Maximum huge pages or -1 if no maximum. */
	
long used_hpages;	/* Used count against maximum, includes */
				/* both alloced and reserved pages. */
	
struct hstate *hstate;
	
long min_hpages;	/* Minimum huge pages or -1 if no minimum. */
	
long rsv_hpages;	/* Pages reserved against global pool to */
				/* sasitfy minimum size. */
};


struct resv_map {
	
struct kref refs;
	
spinlock_t lock;
	
struct list_head regions;
	
long adds_in_progress;
	
struct list_head region_cache;
	
long region_cache_count;
};
extern struct resv_map *resv_map_alloc(void);
void resv_map_release(struct kref *ref);

extern spinlock_t hugetlb_lock;
extern int hugetlb_max_hstate __read_mostly;

#define for_each_hstate(h) \
	for ((h) = hstates; (h) < &hstates[hugetlb_max_hstate]; (h)++)

struct hugepage_subpool *hugepage_new_subpool(struct hstate *h, long max_hpages,
						long min_hpages);
void hugepage_put_subpool(struct hugepage_subpool *spool);

void reset_vma_resv_huge_pages(struct vm_area_struct *vma);
int hugetlb_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
int hugetlb_overcommit_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
int hugetlb_treat_movable_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);

#ifdef CONFIG_NUMA
int hugetlb_mempolicy_sysctl_handler(struct ctl_table *, int,
					void __user *, size_t *, loff_t *);
#endif

int copy_hugetlb_page_range(struct mm_struct *, struct mm_struct *, struct vm_area_struct *);
long follow_hugetlb_page(struct mm_struct *, struct vm_area_struct *,
			 struct page **, struct vm_area_struct **,
			 unsigned long *, unsigned long *, long, unsigned int,
			 int *);
void unmap_hugepage_range(struct vm_area_struct *,
			  unsigned long, unsigned long, struct page *);
void __unmap_hugepage_range_final(struct mmu_gather *tlb,
			  struct vm_area_struct *vma,
			  unsigned long start, unsigned long end,
			  struct page *ref_page);
void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
				unsigned long start, unsigned long end,
				struct page *ref_page);
void hugetlb_report_meminfo(struct seq_file *);
int hugetlb_report_node_meminfo(int, char *);
void hugetlb_show_meminfo(void);
unsigned long hugetlb_total_pages(void);
int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
			unsigned long address, unsigned int flags);
int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, pte_t *dst_pte,
				struct vm_area_struct *dst_vma,
				unsigned long dst_addr,
				unsigned long src_addr,
				struct page **pagep);
int hugetlb_reserve_pages(struct inode *inode, long from, long to,
						struct vm_area_struct *vma,
						vm_flags_t vm_flags);
long hugetlb_unreserve_pages(struct inode *inode, long start, long end,
						long freed);
int dequeue_hwpoisoned_huge_page(struct page *page);
bool isolate_huge_page(struct page *page, struct list_head *list);
void putback_active_hugepage(struct page *page);
void free_huge_page(struct page *page);
void hugetlb_fix_reserve_counts(struct inode *inode);
extern struct mutex *hugetlb_fault_mutex_table;
u32 hugetlb_fault_mutex_hash(struct hstate *h, struct mm_struct *mm,
				struct vm_area_struct *vma,
				struct address_space *mapping,
				pgoff_t idx, unsigned long address);

pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud);

extern int hugepages_treat_as_movable;
extern int sysctl_hugetlb_shm_group;
extern struct list_head huge_boot_pages;

/* arch callbacks */

pte_t *huge_pte_alloc(struct mm_struct *mm,
			unsigned long addr, unsigned long sz);
pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr);
int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep);
struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address,
			      int write);
struct page *follow_huge_pmd(struct mm_struct *mm, unsigned long address,
				pmd_t *pmd, int flags);
struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address,
				pud_t *pud, int flags);
int pmd_huge(pmd_t pmd);
int pud_huge(pud_t pud);
unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
		unsigned long address, unsigned long end, pgprot_t newprot);

#else /* !CONFIG_HUGETLB_PAGE */



static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mel Gorman
11
100.00%
1
100.00%
Total
11
100.00%
1
100.00%



static inline unsigned long hugetlb_total_pages(void)
{
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
13
100.00%
1
100.00%
Total
13
100.00%
1
100.00%


#define follow_hugetlb_page(m,v,p,vs,a,b,i,w,n)	({ BUG(); 0; })

#define follow_huge_addr(mm, addr, write)	ERR_PTR(-EINVAL)

#define copy_hugetlb_page_range(src, dst, vma)	({ BUG(); 0; })


static inline void hugetlb_report_meminfo(struct seq_file *m)
{
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Alexey Dobriyan
8
72.73%
1
50.00%
Andrew Morton
3
27.27%
1
50.00%
Total
11
100.00%
2
100.00%


#define hugetlb_report_node_meminfo(n, buf)	0


static inline void hugetlb_show_meminfo(void)
{
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
David Rientjes
8
100.00%
1
100.00%
Total
8
100.00%
1
100.00%


#define follow_huge_pmd(mm, addr, pmd, flags)	NULL

#define follow_huge_pud(mm, addr, pud, flags)	NULL

#define prepare_hugepage_range(file, addr, len)	(-EINVAL)

#define pmd_huge(x)	0

#define pud_huge(x)	0

#define is_hugepage_only_range(mm, addr, len)	0

#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) ({BUG(); 0; })

#define hugetlb_fault(mm, vma, addr, flags)	({ BUG(); 0; })

#define hugetlb_mcopy_atomic_pte(dst_mm, dst_pte, dst_vma, dst_addr, \
				src_addr, pagep)	({ BUG(); 0; })

#define huge_pte_offset(mm, address)	0


static inline int dequeue_hwpoisoned_huge_page(struct page *page)
{
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
11
73.33%
1
33.33%
Naoya Horiguchi
4
26.67%
2
66.67%
Total
15
100.00%
3
100.00%



static inline bool isolate_huge_page(struct page *page, struct list_head *list)
{
	return false;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
20
100.00%
2
100.00%
Total
20
100.00%
2
100.00%


#define putback_active_hugepage(p)	do {} while (0)



static inline unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
		unsigned long address, unsigned long end, pgprot_t newprot)
{
	return 0;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Peter Zijlstra
17
62.96%
1
50.00%
Yanmin Zhang
10
37.04%
1
50.00%
Total
27
100.00%
2
100.00%



static inline void __unmap_hugepage_range_final(struct mmu_gather *tlb,
			struct vm_area_struct *vma, unsigned long start,
			unsigned long end, struct page *ref_page)
{
	BUG();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Mel Gorman
33
100.00%
1
100.00%
Total
33
100.00%
1
100.00%



static inline void __unmap_hugepage_range(struct mmu_gather *tlb,
			struct vm_area_struct *vma, unsigned long start,
			unsigned long end, struct page *ref_page)
{
	BUG();
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
33
100.00%
1
100.00%
Total
33
100.00%
1
100.00%

#endif /* !CONFIG_HUGETLB_PAGE */
/*
 * hugepages at page global directory. If arch support
 * hugepages at pgd level, they need to define this.
 */
#ifndef pgd_huge

#define pgd_huge(x)	0
#endif
#ifndef p4d_huge

#define p4d_huge(x)	0
#endif

#ifndef pgd_write


static inline int pgd_write(pgd_t pgd)
{
	BUG();
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
16
100.00%
1
100.00%
Total
16
100.00%
1
100.00%

#endif

#ifndef pud_write


static inline int pud_write(pud_t pud)
{
	BUG();
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
16
100.00%
1
100.00%
Total
16
100.00%
1
100.00%

#endif

#ifndef is_hugepd
/*
 * Some architectures requires a hugepage directory format that is
 * required to support multiple hugepage sizes. For example
 * a4fe3ce76 "powerpc/mm: Allow more flexible layouts for hugepage pagetables"
 * introduced the same on powerpc. This allows for a more flexible hugepage
 * pagetable layout.
 */


typedef struct { unsigned long pd; } hugepd_t;

#define is_hugepd(hugepd) (0)

#define __hugepd(x) ((hugepd_t) { (x) })


static inline int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
			      unsigned pdshift, unsigned long end,
			      int write, struct page **pages, int *nr)
{
	return 0;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
37
100.00%
1
100.00%
Total
37
100.00%
1
100.00%

#else
extern int gup_huge_pd(hugepd_t hugepd, unsigned long addr,
		       unsigned pdshift, unsigned long end,
		       int write, struct page **pages, int *nr);
#endif


#define HUGETLB_ANON_FILE "anon_hugepage"

enum {
	/*
         * The file will be used as an shm file so shmfs accounting rules
         * apply
         */
	
HUGETLB_SHMFS_INODE     = 1,
	/*
         * The file is being created on the internal vfs mount and shmfs
         * accounting rules do not apply
         */
	
HUGETLB_ANONHUGE_INODE  = 2,
};

#ifdef CONFIG_HUGETLBFS

struct hugetlbfs_sb_info {
	
long	max_inodes;   /* inodes allowed */
	
long	free_inodes;  /* inodes free */
	
spinlock_t	stat_lock;
	
struct hstate *hstate;
	
struct hugepage_subpool *spool;
};



static inline struct hugetlbfs_sb_info *HUGETLBFS_SB(struct super_block *sb)
{
	return sb->s_fs_info;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%

extern const struct file_operations hugetlbfs_file_operations;
extern const struct vm_operations_struct hugetlb_vm_ops;
struct file *hugetlb_file_setup(const char *name, size_t size, vm_flags_t acct,
				struct user_struct **user, int creat_flags,
				int page_size_log);



static inline bool is_file_hugepages(struct file *file)
{
	if (file->f_op == &hugetlbfs_file_operations)
		return true;

	return is_file_shm_hugepages(file);
}


Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
18
60.00%
2
50.00%
Adam Litke
9
30.00%
1
25.00%
Yaowei Bai
3
10.00%
1
25.00%
Total
30
100.00%
4
100.00%

#else /* !CONFIG_HUGETLBFS */


#define is_file_hugepages(file)			false

static inline struct file *

hugetlb_file_setup(const char *name, size_t size, vm_flags_t acctflag,
		struct user_struct **user, int creat_flags,
		int page_size_log)
{
	return ERR_PTR(-ENOSYS);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrew Morton
28
71.79%
2
25.00%
Eric W. Biedermann
3
7.69%
1
12.50%
Andi Kleen
3
7.69%
1
12.50%
Hugh Dickins
2
5.13%
1
12.50%
Motohiro Kosaki
1
2.56%
1
12.50%
Stefan Richter
1
2.56%
1
12.50%
Eric B Munson
1
2.56%
1
12.50%
Total
39
100.00%
8
100.00%

#endif /* !CONFIG_HUGETLBFS */

#ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
					unsigned long len, unsigned long pgoff,
					unsigned long flags);
#endif /* HAVE_ARCH_HUGETLB_UNMAPPED_AREA */

#ifdef CONFIG_HUGETLB_PAGE


#define HSTATE_NAME_LEN 32
/* Defines one hugetlb page size */

struct hstate {
	
int next_nid_to_alloc;
	
int next_nid_to_free;
	
unsigned int order;
	
unsigned long mask;
	
unsigned long max_huge_pages;
	
unsigned long nr_huge_pages;
	
unsigned long free_huge_pages;
	
unsigned long resv_huge_pages;
	
unsigned long surplus_huge_pages;
	
unsigned long nr_overcommit_huge_pages;
	
struct list_head hugepage_activelist;
	
struct list_head hugepage_freelists[MAX_NUMNODES];
	
unsigned int nr_huge_pages_node[MAX_NUMNODES];
	
unsigned int free_huge_pages_node[MAX_NUMNODES];
	
unsigned int surplus_huge_pages_node[MAX_NUMNODES];
#ifdef CONFIG_CGROUP_HUGETLB
	/* cgroup control files */
	
struct cftype cgroup_files[5];
#endif
	
char name[HSTATE_NAME_LEN];
};


struct huge_bootmem_page {
	
struct list_head list;
	
struct hstate *hstate;
#ifdef CONFIG_HIGHMEM
	
phys_addr_t phys;
#endif
};

struct page *alloc_huge_page(struct vm_area_struct *vma,
				unsigned long addr, int avoid_reserve);
struct page *alloc_huge_page_node(struct hstate *h, int nid);
struct page *alloc_huge_page_noerr(struct vm_area_struct *vma,
				unsigned long addr, int avoid_reserve);
int huge_add_to_page_cache(struct page *page, struct address_space *mapping,
			pgoff_t idx);

/* arch callback */
int __init alloc_bootmem_huge_page(struct hstate *h);

void __init hugetlb_bad_size(void);
void __init hugetlb_add_hstate(unsigned order);
struct hstate *size_to_hstate(unsigned long size);

#ifndef HUGE_MAX_HSTATE

#define HUGE_MAX_HSTATE 1
#endif

extern struct hstate hstates[HUGE_MAX_HSTATE];
extern unsigned int default_hstate_idx;


#define default_hstate (hstates[default_hstate_idx])



static inline struct hstate *hstate_inode(struct inode *i)
{
	return HUGETLBFS_SB(i->i_sb)->hstate;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
23
95.83%
2
66.67%
Chen Gang S
1
4.17%
1
33.33%
Total
24
100.00%
3
100.00%



static inline struct hstate *hstate_file(struct file *f)
{
	return hstate_inode(file_inode(f));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
20
86.96%
2
66.67%
Al Viro
3
13.04%
1
33.33%
Total
23
100.00%
3
100.00%



static inline struct hstate *hstate_sizelog(int page_size_log)
{
	if (!page_size_log)
		return &default_hstate;

	return size_to_hstate(1UL << page_size_log);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
28
96.55%
1
50.00%
Sasha Levin
1
3.45%
1
50.00%
Total
29
100.00%
2
100.00%



static inline struct hstate *hstate_vma(struct vm_area_struct *vma)
{
	return hstate_file(vma->vm_file);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
22
100.00%
2
100.00%
Total
22
100.00%
2
100.00%



static inline unsigned long huge_page_size(struct hstate *h)
{
	return (unsigned long)PAGE_SIZE << h->order;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
24
100.00%
1
100.00%
Total
24
100.00%
1
100.00%

extern unsigned long vma_kernel_pagesize(struct vm_area_struct *vma);

extern unsigned long vma_mmu_pagesize(struct vm_area_struct *vma);



static inline unsigned long huge_page_mask(struct hstate *h)
{
	return h->mask;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
18
100.00%
1
100.00%
Total
18
100.00%
1
100.00%



static inline unsigned int huge_page_order(struct hstate *h)
{
	return h->order;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
18
100.00%
1
100.00%
Total
18
100.00%
1
100.00%



static inline unsigned huge_page_shift(struct hstate *h)
{
	return h->order + PAGE_SHIFT;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
19
100.00%
1
100.00%
Total
19
100.00%
1
100.00%



static inline bool hstate_is_gigantic(struct hstate *h)
{
	return huge_page_order(h) >= MAX_ORDER;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Luiz Fernando N. Capitulino
20
100.00%
1
100.00%
Total
20
100.00%
1
100.00%



static inline unsigned int pages_per_huge_page(struct hstate *h)
{
	return 1 << h->order;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
20
100.00%
1
100.00%
Total
20
100.00%
1
100.00%



static inline unsigned int blocks_per_huge_page(struct hstate *h)
{
	return huge_page_size(h) / 512;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
21
100.00%
1
100.00%
Total
21
100.00%
1
100.00%

#include <asm/hugetlb.h>

#ifndef arch_make_huge_pte


static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
				       struct page *page, int writable)
{
	return entry;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Chris Metcalf
26
100.00%
1
100.00%
Total
26
100.00%
1
100.00%

#endif



static inline struct hstate *page_hstate(struct page *page)
{
	VM_BUG_ON_PAGE(!PageHuge(page), page);
	return size_to_hstate(PAGE_SIZE << compound_order(page));
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
25
69.44%
1
33.33%
Dave Hansen
8
22.22%
1
33.33%
Sasha Levin
3
8.33%
1
33.33%
Total
36
100.00%
3
100.00%



static inline unsigned hstate_index_to_shift(unsigned index)
{
	return hstates[index].order + PAGE_SHIFT;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
20
100.00%
1
100.00%
Total
20
100.00%
1
100.00%



static inline int hstate_index(struct hstate *h)
{
	return h - hstates;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Aneesh Kumar K.V
17
100.00%
1
100.00%
Total
17
100.00%
1
100.00%

pgoff_t __basepage_index(struct page *page);

/* Return page->index in PAGE_SIZE units */


static inline pgoff_t basepage_index(struct page *page)
{
	if (!PageCompound(page))
		return page->index;

	return __basepage_index(page);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Zhang Yi
31
100.00%
1
100.00%
Total
31
100.00%
1
100.00%

extern int dissolve_free_huge_pages(unsigned long start_pfn,
				    unsigned long end_pfn);


static inline bool hugepage_migration_supported(struct hstate *h)
{
#ifdef CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
	return huge_page_shift(h) == PMD_SHIFT;
#else
	return false;
#endif
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
28
93.33%
3
75.00%
Chen Gang S
2
6.67%
1
25.00%
Total
30
100.00%
4
100.00%



static inline spinlock_t *huge_pte_lockptr(struct hstate *h,
					   struct mm_struct *mm, pte_t *pte)
{
	if (huge_page_size(h) == PMD_SIZE)
		return pmd_lockptr(mm, (pmd_t *) pte);
	VM_BUG_ON(huge_page_size(h) == PAGE_SIZE);
	return &mm->page_table_lock;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kirill A. Shutemov
59
100.00%
1
100.00%
Total
59
100.00%
1
100.00%

#ifndef hugepages_supported
/*
 * Some platform decide whether they support huge pages at boot
 * time. Some of them, such as powerpc, set HPAGE_SHIFT to 0
 * when there is no such support
 */

#define hugepages_supported() (HPAGE_SHIFT != 0)
#endif

void hugetlb_report_usage(struct seq_file *m, struct mm_struct *mm);



static inline void hugetlb_count_add(long l, struct mm_struct *mm)
{
	atomic_long_add(l, &mm->hugetlb_usage);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
25
100.00%
1
100.00%
Total
25
100.00%
1
100.00%



static inline void hugetlb_count_sub(long l, struct mm_struct *mm)
{
	atomic_long_sub(l, &mm->hugetlb_usage);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
25
100.00%
1
100.00%
Total
25
100.00%
1
100.00%

#else	/* CONFIG_HUGETLB_PAGE */

struct hstate {};

#define alloc_huge_page(v, a, r) NULL

#define alloc_huge_page_node(h, nid) NULL

#define alloc_huge_page_noerr(v, a, r) NULL

#define alloc_bootmem_huge_page(h) NULL

#define hstate_file(f) NULL

#define hstate_sizelog(s) NULL

#define hstate_vma(v) NULL

#define hstate_inode(i) NULL

#define page_hstate(page) NULL

#define huge_page_size(h) PAGE_SIZE

#define huge_page_mask(h) PAGE_MASK

#define vma_kernel_pagesize(v) PAGE_SIZE

#define vma_mmu_pagesize(v) PAGE_SIZE

#define huge_page_order(h) 0

#define huge_page_shift(h) PAGE_SHIFT


static inline unsigned int pages_per_huge_page(struct hstate *h)
{
	return 1;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Andrea Righi
12
75.00%
1
50.00%
Andi Kleen
4
25.00%
1
50.00%
Total
16
100.00%
2
100.00%


#define hstate_index_to_shift(index) 0

#define hstate_index(h) 0



static inline pgoff_t basepage_index(struct page *page)
{
	return page->index;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Zhang Yi
17
100.00%
1
100.00%
Total
17
100.00%
1
100.00%


#define dissolve_free_huge_pages(s, e)	0

#define hugepage_migration_supported(h)	false



static inline spinlock_t *huge_pte_lockptr(struct hstate *h,
					   struct mm_struct *mm, pte_t *pte)
{
	return &mm->page_table_lock;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kirill A. Shutemov
28
100.00%
1
100.00%
Total
28
100.00%
1
100.00%



static inline void hugetlb_report_usage(struct seq_file *f, struct mm_struct *m)
{
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
16
100.00%
1
100.00%
Total
16
100.00%
1
100.00%



static inline void hugetlb_count_sub(long l, struct mm_struct *mm)
{
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Naoya Horiguchi
14
100.00%
1
100.00%
Total
14
100.00%
1
100.00%

#endif	/* CONFIG_HUGETLB_PAGE */



static inline spinlock_t *huge_pte_lock(struct hstate *h,
					struct mm_struct *mm, pte_t *pte)
{
	spinlock_t *ptl;

	ptl = huge_pte_lockptr(h, mm, pte);
	spin_lock(ptl);
	return ptl;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Kirill A. Shutemov
45
100.00%
1
100.00%
Total
45
100.00%
1
100.00%

#endif /* _LINUX_HUGETLB_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Andi Kleen
479
18.03%
6
4.88%
Andrew Morton
371
13.96%
16
13.01%
Naoya Horiguchi
316
11.89%
15
12.20%
Aneesh Kumar K.V
273
10.27%
6
4.88%
Mike Kravetz
184
6.93%
8
6.50%
Kirill A. Shutemov
152
5.72%
2
1.63%
Mel Gorman
151
5.68%
7
5.69%
Kenneth W. Chen
77
2.90%
4
3.25%
David Gibson
77
2.90%
3
2.44%
Zhang Yi
58
2.18%
1
0.81%
Hugh Dickins
52
1.96%
5
4.07%
Jon Tollefson
37
1.39%
1
0.81%
JoonSoo Kim
37
1.39%
1
0.81%
Nishanth Aravamudan
34
1.28%
5
4.07%
Adrian Bunk
32
1.20%
1
0.81%
Chris Metcalf
31
1.17%
1
0.81%
Lee Schermerhorn
29
1.09%
2
1.63%
Yanmin Zhang
29
1.09%
1
0.81%
Eric B Munson
21
0.79%
2
1.63%
Luiz Fernando N. Capitulino
20
0.75%
1
0.81%
Peter Zijlstra
19
0.72%
1
0.81%
Steve Capper
18
0.68%
1
0.81%
Adam Litke
16
0.60%
2
1.63%
Alexey Dobriyan
15
0.56%
3
2.44%
David Rientjes
14
0.53%
1
0.81%
Andrea Righi
12
0.45%
1
0.81%
Dominik Dingel
10
0.38%
1
0.81%
Atsushi Kumagai
9
0.34%
1
0.81%
Eric W. Biedermann
9
0.34%
1
0.81%
Dave Hansen
8
0.30%
1
0.81%
Becky Bruce
8
0.30%
1
0.81%
Vaishali Thakkar
7
0.26%
1
0.81%
Sasha Levin
7
0.26%
2
1.63%
Linus Torvalds
7
0.26%
3
2.44%
Andrea Arcangeli
5
0.19%
1
0.81%
Motohiro Kosaki
4
0.15%
1
0.81%
Michel Lespinasse
4
0.15%
1
0.81%
Al Viro
4
0.15%
2
1.63%
Chen Gang S
4
0.15%
2
1.63%
Yaowei Bai
4
0.15%
1
0.81%
Dan J Williams
3
0.11%
1
0.81%
Davidlohr Bueso A
3
0.11%
1
0.81%
Gerald Schaefer
2
0.08%
1
0.81%
Daniel McNeil
2
0.08%
1
0.81%
Andrey Ryabinin
1
0.04%
1
0.81%
Arjan van de Ven
1
0.04%
1
0.81%
Stefan Richter
1
0.04%
1
0.81%
Steven Truelove
0.00%
0
0.00%
Total
2657
100.00%
123
100.00%
Directory: include/linux

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.