diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/rmap.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 746013e282c3..0e83c3be8568 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1442,8 +1442,9 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, */ if (!(flags & TTU_IGNORE_MLOCK)) { if (vma->vm_flags & VM_LOCKED) { - /* PTE-mapped THP are never mlocked */ - if (!PageTransCompound(page)) { + /* PTE-mapped THP are never marked as mlocked */ + if (!PageTransCompound(page) || + (PageHead(page) && !PageDoubleMap(page))) { /* * Holding pte lock, we do *not* need * mmap_lock here @@ -1984,9 +1985,11 @@ static bool page_mlock_one(struct page *page, struct vm_area_struct *vma, * munlock_vma_pages_range(). */ if (vma->vm_flags & VM_LOCKED) { - /* PTE-mapped THP are never mlocked */ - if (!PageTransCompound(page)) - mlock_vma_page(page); + /* + * PTE-mapped THP are never marked as mlocked, but + * this function is never called when PageDoubleMap(). + */ + mlock_vma_page(page); page_vma_mapped_walk_done(&pvmw); } |