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1 | /* SPDX-License-Identifier: GPL-2.0 */ |
---|---|
2 | #ifndef _LINUX_KHUGEPAGED_H |
3 | #define _LINUX_KHUGEPAGED_H |
4 | |
5 | #include <linux/sched/coredump.h> /* MMF_VM_HUGEPAGE */ |
6 | |
7 | #ifdef CONFIG_TRANSPARENT_HUGEPAGE |
8 | extern struct attribute_group khugepaged_attr_group; |
9 | |
10 | extern int khugepaged_init(void); |
11 | extern void khugepaged_destroy(void); |
12 | extern int start_stop_khugepaged(void); |
13 | extern void __khugepaged_enter(struct mm_struct *mm); |
14 | extern void __khugepaged_exit(struct mm_struct *mm); |
15 | extern void khugepaged_enter_vma(struct vm_area_struct *vma, |
16 | unsigned long vm_flags); |
17 | extern void khugepaged_min_free_kbytes_update(void); |
18 | #ifdef CONFIG_SHMEM |
19 | extern void collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr); |
20 | #else |
21 | static inline void collapse_pte_mapped_thp(struct mm_struct *mm, |
22 | unsigned long addr) |
23 | { |
24 | } |
25 | #endif |
26 | |
27 | static inline void khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm) |
28 | { |
29 | if (test_bit(MMF_VM_HUGEPAGE, &oldmm->flags)) |
30 | __khugepaged_enter(mm); |
31 | } |
32 | |
33 | static inline void khugepaged_exit(struct mm_struct *mm) |
34 | { |
35 | if (test_bit(MMF_VM_HUGEPAGE, &mm->flags)) |
36 | __khugepaged_exit(mm); |
37 | } |
38 | #else /* CONFIG_TRANSPARENT_HUGEPAGE */ |
39 | static inline void khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm) |
40 | { |
41 | } |
42 | static inline void khugepaged_exit(struct mm_struct *mm) |
43 | { |
44 | } |
45 | static inline void khugepaged_enter_vma(struct vm_area_struct *vma, |
46 | unsigned long vm_flags) |
47 | { |
48 | } |
49 | static inline void collapse_pte_mapped_thp(struct mm_struct *mm, |
50 | unsigned long addr) |
51 | { |
52 | } |
53 | |
54 | static inline void khugepaged_min_free_kbytes_update(void) |
55 | { |
56 | } |
57 | #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ |
58 | |
59 | #endif /* _LINUX_KHUGEPAGED_H */ |
60 |
Warning: This file is not a C or C++ file. It does not have highlighting.