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Diffstat (limited to 'mm')
-rw-r--r--mm/gup.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/gup.c b/mm/gup.c
index 271fbe8195d7..f598a037eb04 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1404,6 +1404,7 @@ long populate_vma_page_range(struct vm_area_struct *vma,
struct mm_struct *mm = vma->vm_mm;
unsigned long nr_pages = (end - start) / PAGE_SIZE;
int gup_flags;
+ long ret;
VM_BUG_ON(!PAGE_ALIGNED(start));
VM_BUG_ON(!PAGE_ALIGNED(end));
@@ -1438,8 +1439,10 @@ long populate_vma_page_range(struct vm_area_struct *vma,
* We made sure addr is within a VMA, so the following will
* not result in a stack expansion that recurses back here.
*/
- return __get_user_pages(mm, start, nr_pages, gup_flags,
+ ret = __get_user_pages(mm, start, nr_pages, gup_flags,
NULL, NULL, locked);
+ lru_add_drain();
+ return ret;
}
/*
@@ -1471,6 +1474,7 @@ long faultin_vma_page_range(struct vm_area_struct *vma, unsigned long start,
struct mm_struct *mm = vma->vm_mm;
unsigned long nr_pages = (end - start) / PAGE_SIZE;
int gup_flags;
+ long ret;
VM_BUG_ON(!PAGE_ALIGNED(start));
VM_BUG_ON(!PAGE_ALIGNED(end));
@@ -1498,8 +1502,10 @@ long faultin_vma_page_range(struct vm_area_struct *vma, unsigned long start,
if (check_vma_flags(vma, gup_flags))
return -EINVAL;
- return __get_user_pages(mm, start, nr_pages, gup_flags,
+ ret = __get_user_pages(mm, start, nr_pages, gup_flags,
NULL, NULL, locked);
+ lru_add_drain();
+ return ret;
}
/*