Release 4.14 include/linux/khugepaged.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_KHUGEPAGED_H
#define _LINUX_KHUGEPAGED_H
#include <linux/sched/coredump.h> /* MMF_VM_HUGEPAGE */
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
extern struct attribute_group khugepaged_attr_group;
extern int khugepaged_init(void);
extern void khugepaged_destroy(void);
extern int start_stop_khugepaged(void);
extern int __khugepaged_enter(struct mm_struct *mm);
extern void __khugepaged_exit(struct mm_struct *mm);
extern int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
unsigned long vm_flags);
#define khugepaged_enabled() \
(transparent_hugepage_flags & \
((1<<TRANSPARENT_HUGEPAGE_FLAG) | \
(1<<TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG)))
#define khugepaged_always() \
(transparent_hugepage_flags & \
(1<<TRANSPARENT_HUGEPAGE_FLAG))
#define khugepaged_req_madv() \
(transparent_hugepage_flags & \
(1<<TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG))
#define khugepaged_defrag() \
(transparent_hugepage_flags & \
(1<<TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG))
static inline int khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm)
{
if (test_bit(MMF_VM_HUGEPAGE, &oldmm->flags))
return __khugepaged_enter(mm);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 38 | 100.00% | 1 | 100.00% |
Total | 38 | 100.00% | 1 | 100.00% |
static inline void khugepaged_exit(struct mm_struct *mm)
{
if (test_bit(MMF_VM_HUGEPAGE, &mm->flags))
__khugepaged_exit(mm);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 29 | 100.00% | 1 | 100.00% |
Total | 29 | 100.00% | 1 | 100.00% |
static inline int khugepaged_enter(struct vm_area_struct *vma,
unsigned long vm_flags)
{
if (!test_bit(MMF_VM_HUGEPAGE, &vma->vm_mm->flags))
if ((khugepaged_always() ||
(khugepaged_req_madv() && (vm_flags & VM_HUGEPAGE))) &&
!(vm_flags & VM_NOHUGEPAGE) &&
!test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))
if (__khugepaged_enter(vma->vm_mm))
return -ENOMEM;
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 66 | 77.65% | 2 | 50.00% |
Michal Hocko | 13 | 15.29% | 1 | 25.00% |
David Rientjes | 6 | 7.06% | 1 | 25.00% |
Total | 85 | 100.00% | 4 | 100.00% |
#else /* CONFIG_TRANSPARENT_HUGEPAGE */
static inline int khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm)
{
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 20 | 100.00% | 1 | 100.00% |
Total | 20 | 100.00% | 1 | 100.00% |
static inline void khugepaged_exit(struct mm_struct *mm)
{
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 11 | 100.00% | 1 | 100.00% |
Total | 11 | 100.00% | 1 | 100.00% |
static inline int khugepaged_enter(struct vm_area_struct *vma,
unsigned long vm_flags)
{
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 15 | 78.95% | 1 | 50.00% |
David Rientjes | 4 | 21.05% | 1 | 50.00% |
Total | 19 | 100.00% | 2 | 100.00% |
static inline int khugepaged_enter_vma_merge(struct vm_area_struct *vma,
unsigned long vm_flags)
{
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 15 | 78.95% | 1 | 50.00% |
David Rientjes | 4 | 21.05% | 1 | 50.00% |
Total | 19 | 100.00% | 2 | 100.00% |
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif /* _LINUX_KHUGEPAGED_H */
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Andrea Arcangeli | 269 | 82.01% | 2 | 28.57% |
Kirill A. Shutemov | 26 | 7.93% | 1 | 14.29% |
David Rientjes | 18 | 5.49% | 1 | 14.29% |
Michal Hocko | 13 | 3.96% | 1 | 14.29% |
Greg Kroah-Hartman | 1 | 0.30% | 1 | 14.29% |
Ingo Molnar | 1 | 0.30% | 1 | 14.29% |
Total | 328 | 100.00% | 7 | 100.00% |
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