diff options
| author | Levin Calado <levincalado@gmail.com> | 2015-06-14 23:24:15 +0800 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-08-26 20:36:21 +0200 |
| commit | 3a34dc17318f9bf09dbd7d10ac087a8a75f5f629 (patch) | |
| tree | 8ea4d532a0a486879f369d7cd61d2d03edeb6618 /include/linux/ksm.h | |
| parent | 5cff97db281b250545152284249a258a4f5c5ccf (diff) | |
add uksm 0.1.2.3 for v3.10 .ge.46.patch
Conflicts:
fs/exec.c
Signed-off-by: Stefan Guendhoer <stefan@guendhoer.com>
Diffstat (limited to 'include/linux/ksm.h')
| -rw-r--r-- | include/linux/ksm.h | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/include/linux/ksm.h b/include/linux/ksm.h index 45c9b6a17..c7de7a78e 100644 --- a/include/linux/ksm.h +++ b/include/linux/ksm.h @@ -19,21 +19,6 @@ struct mem_cgroup; #ifdef CONFIG_KSM int ksm_madvise(struct vm_area_struct *vma, unsigned long start, unsigned long end, int advice, unsigned long *vm_flags); -int __ksm_enter(struct mm_struct *mm); -void __ksm_exit(struct mm_struct *mm); - -static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm) -{ - if (test_bit(MMF_VM_MERGEABLE, &oldmm->flags)) - return __ksm_enter(mm); - return 0; -} - -static inline void ksm_exit(struct mm_struct *mm) -{ - if (test_bit(MMF_VM_MERGEABLE, &mm->flags)) - __ksm_exit(mm); -} /* * A KSM page is one of those write-protected "shared pages" or "merged pages" @@ -80,6 +65,33 @@ int rmap_walk_ksm(struct page *page, int (*rmap_one)(struct page *, struct vm_area_struct *, unsigned long, void *), void *arg); void ksm_migrate_page(struct page *newpage, struct page *oldpage); +#ifdef CONFIG_KSM_LEGACY +int __ksm_enter(struct mm_struct *mm); +void __ksm_exit(struct mm_struct *mm); +static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm) +{ + if (test_bit(MMF_VM_MERGEABLE, &oldmm->flags)) + return __ksm_enter(mm); + return 0; +} + +static inline void ksm_exit(struct mm_struct *mm) +{ + if (test_bit(MMF_VM_MERGEABLE, &mm->flags)) + __ksm_exit(mm); +} + +#elif defined(CONFIG_UKSM) +static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm) +{ + return 0; +} + +static inline void ksm_exit(struct mm_struct *mm) +{ +} +#endif /* !CONFIG_UKSM */ + #else /* !CONFIG_KSM */ static inline int ksm_fork(struct mm_struct *mm, struct mm_struct *oldmm) @@ -132,4 +144,6 @@ static inline void ksm_migrate_page(struct page *newpage, struct page *oldpage) #endif /* CONFIG_MMU */ #endif /* !CONFIG_KSM */ +#include <linux/uksm.h> + #endif /* __LINUX_KSM_H */ |