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-rw-r--r--kernel/events/uprobes.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 1d9c0a985960..98256bc71ee1 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -141,10 +141,14 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
141 spinlock_t *ptl; 141 spinlock_t *ptl;
142 pte_t *ptep; 142 pte_t *ptep;
143 int err; 143 int err;
144 /* For mmu_notifiers */
145 const unsigned long mmun_start = addr;
146 const unsigned long mmun_end = addr + PAGE_SIZE;
144 147
145 /* For try_to_free_swap() and munlock_vma_page() below */ 148 /* For try_to_free_swap() and munlock_vma_page() below */
146 lock_page(page); 149 lock_page(page);
147 150
151 mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
148 err = -EAGAIN; 152 err = -EAGAIN;
149 ptep = page_check_address(page, mm, addr, &ptl, 0); 153 ptep = page_check_address(page, mm, addr, &ptl, 0);
150 if (!ptep) 154 if (!ptep)
@@ -173,6 +177,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
173 177
174 err = 0; 178 err = 0;
175 unlock: 179 unlock:
180 mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
176 unlock_page(page); 181 unlock_page(page);
177 return err; 182 return err;
178} 183}