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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/linux/khugepaged.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/linux/khugepaged.h')
| -rw-r--r-- | include/linux/khugepaged.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h new file mode 100644 index 000000000..70162d707 --- /dev/null +++ b/include/linux/khugepaged.h @@ -0,0 +1,62 @@ +/* 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 void __khugepaged_enter(struct mm_struct *mm); +extern void __khugepaged_exit(struct mm_struct *mm); +extern void khugepaged_enter_vma(struct vm_area_struct *vma, + unsigned long vm_flags); +extern void khugepaged_min_free_kbytes_update(void); +#ifdef CONFIG_SHMEM +extern int collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr, + bool install_pmd); +#else +static inline int collapse_pte_mapped_thp(struct mm_struct *mm, + unsigned long addr, bool install_pmd) +{ + return 0; +} +#endif + +static inline void khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm) +{ + if (test_bit(MMF_VM_HUGEPAGE, &oldmm->flags)) + __khugepaged_enter(mm); +} + +static inline void khugepaged_exit(struct mm_struct *mm) +{ + if (test_bit(MMF_VM_HUGEPAGE, &mm->flags)) + __khugepaged_exit(mm); +} +#else /* CONFIG_TRANSPARENT_HUGEPAGE */ +static inline void khugepaged_fork(struct mm_struct *mm, struct mm_struct *oldmm) +{ +} +static inline void khugepaged_exit(struct mm_struct *mm) +{ +} +static inline void khugepaged_enter_vma(struct vm_area_struct *vma, + unsigned long vm_flags) +{ +} +static inline int collapse_pte_mapped_thp(struct mm_struct *mm, + unsigned long addr, bool install_pmd) +{ + return 0; +} + +static inline void khugepaged_min_free_kbytes_update(void) +{ +} +#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ + +#endif /* _LINUX_KHUGEPAGED_H */ |