diff options
Diffstat (limited to 'mm/rmap.c')
| -rw-r--r-- | mm/rmap.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 945933a01010..c399a0d41b31 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1431,8 +1431,14 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma, if ((flags & TTU_MUNLOCK) && !(vma->vm_flags & VM_LOCKED)) goto out; - if (flags & TTU_SPLIT_HUGE_PMD) - split_huge_pmd_address(vma, address); + if (flags & TTU_SPLIT_HUGE_PMD) { + split_huge_pmd_address(vma, address, + flags & TTU_MIGRATION, page); + /* check if we have anything to do after split */ + if (page_mapcount(page) == 0) + goto out; + } + pte = page_check_address(page, mm, address, &ptl, 0); if (!pte) goto out; |