diff options
Diffstat (limited to 'include/linux/mmu_notifier.h')
| -rw-r--r-- | include/linux/mmu_notifier.h | 87 |
1 files changed, 58 insertions, 29 deletions
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 3d377805b29c..4050ec1c3b45 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -220,11 +220,8 @@ extern int __mmu_notifier_test_young(struct mm_struct *mm, unsigned long address); extern void __mmu_notifier_change_pte(struct mm_struct *mm, unsigned long address, pte_t pte); -extern int __mmu_notifier_invalidate_range_start(struct mm_struct *mm, - unsigned long start, unsigned long end, - bool blockable); -extern void __mmu_notifier_invalidate_range_end(struct mm_struct *mm, - unsigned long start, unsigned long end, +extern int __mmu_notifier_invalidate_range_start(struct mmu_notifier_range *r); +extern void __mmu_notifier_invalidate_range_end(struct mmu_notifier_range *r, bool only_end); extern void __mmu_notifier_invalidate_range(struct mm_struct *mm, unsigned long start, unsigned long end); @@ -268,33 +265,37 @@ static inline void mmu_notifier_change_pte(struct mm_struct *mm, __mmu_notifier_change_pte(mm, address, pte); } -static inline void mmu_notifier_invalidate_range_start(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline void +mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range) { - if (mm_has_notifiers(mm)) - __mmu_notifier_invalidate_range_start(mm, start, end, true); + if (mm_has_notifiers(range->mm)) { + range->blockable = true; + __mmu_notifier_invalidate_range_start(range); + } } -static inline int mmu_notifier_invalidate_range_start_nonblock(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline int +mmu_notifier_invalidate_range_start_nonblock(struct mmu_notifier_range *range) { - if (mm_has_notifiers(mm)) - return __mmu_notifier_invalidate_range_start(mm, start, end, false); + if (mm_has_notifiers(range->mm)) { + range->blockable = false; + return __mmu_notifier_invalidate_range_start(range); + } return 0; } -static inline void mmu_notifier_invalidate_range_end(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline void +mmu_notifier_invalidate_range_end(struct mmu_notifier_range *range) { - if (mm_has_notifiers(mm)) - __mmu_notifier_invalidate_range_end(mm, start, end, false); + if (mm_has_notifiers(range->mm)) + __mmu_notifier_invalidate_range_end(range, false); } -static inline void mmu_notifier_invalidate_range_only_end(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline void +mmu_notifier_invalidate_range_only_end(struct mmu_notifier_range *range) { - if (mm_has_notifiers(mm)) - __mmu_notifier_invalidate_range_end(mm, start, end, true); + if (mm_has_notifiers(range->mm)) + __mmu_notifier_invalidate_range_end(range, true); } static inline void mmu_notifier_invalidate_range(struct mm_struct *mm, @@ -315,6 +316,17 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) __mmu_notifier_mm_destroy(mm); } + +static inline void mmu_notifier_range_init(struct mmu_notifier_range *range, + struct mm_struct *mm, + unsigned long start, + unsigned long end) +{ + range->mm = mm; + range->start = start; + range->end = end; +} + #define ptep_clear_flush_young_notify(__vma, __address, __ptep) \ ({ \ int __young; \ @@ -427,6 +439,23 @@ extern void mmu_notifier_call_srcu(struct rcu_head *rcu, #else /* CONFIG_MMU_NOTIFIER */ +struct mmu_notifier_range { + unsigned long start; + unsigned long end; +}; + +static inline void _mmu_notifier_range_init(struct mmu_notifier_range *range, + unsigned long start, + unsigned long end) +{ + range->start = start; + range->end = end; +} + +#define mmu_notifier_range_init(range, mm, start, end) \ + _mmu_notifier_range_init(range, start, end) + + static inline int mm_has_notifiers(struct mm_struct *mm) { return 0; @@ -454,24 +483,24 @@ static inline void mmu_notifier_change_pte(struct mm_struct *mm, { } -static inline void mmu_notifier_invalidate_range_start(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline void +mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range) { } -static inline int mmu_notifier_invalidate_range_start_nonblock(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline int +mmu_notifier_invalidate_range_start_nonblock(struct mmu_notifier_range *range) { return 0; } -static inline void mmu_notifier_invalidate_range_end(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline +void mmu_notifier_invalidate_range_end(struct mmu_notifier_range *range) { } -static inline void mmu_notifier_invalidate_range_only_end(struct mm_struct *mm, - unsigned long start, unsigned long end) +static inline void +mmu_notifier_invalidate_range_only_end(struct mmu_notifier_range *range) { } |