diff options
| -rw-r--r-- | mm/rmap.c | 7 | ||||
| -rw-r--r-- | mm/vmscan.c | 6 |
2 files changed, 8 insertions, 5 deletions
diff --git a/mm/rmap.c b/mm/rmap.c index 714bfdc72c7b..c7921c102bc0 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -812,7 +812,10 @@ static bool page_referenced_one(struct page *page, struct vm_area_struct *vma, while (page_vma_mapped_walk(&pvmw)) { address = pvmw.address; - if (vma->vm_flags & VM_LOCKED) { + if ((vma->vm_flags & VM_LOCKED) && + (!PageTransCompound(page) || !pvmw.pte)) { + /* Restore the mlock which got missed */ + mlock_vma_page(page, vma, !pvmw.pte); page_vma_mapped_walk_done(&pvmw); pra->vm_flags |= VM_LOCKED; return false; /* To break the loop */ @@ -851,7 +854,7 @@ static bool page_referenced_one(struct page *page, struct vm_area_struct *vma, if (referenced) { pra->referenced++; - pra->vm_flags |= vma->vm_flags; + pra->vm_flags |= vma->vm_flags & ~VM_LOCKED; } if (!pra->mapcount) diff --git a/mm/vmscan.c b/mm/vmscan.c index 59b14e0d696c..74d3e5e8ebe9 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1388,11 +1388,11 @@ static enum page_references page_check_references(struct page *page, referenced_page = TestClearPageReferenced(page); /* - * Mlock lost the isolation race with us. Let try_to_unmap() - * move the page to the unevictable list. + * The supposedly reclaimable page was found to be in a VM_LOCKED vma. + * Let the page, now marked Mlocked, be moved to the unevictable list. */ if (vm_flags & VM_LOCKED) - return PAGEREF_RECLAIM; + return PAGEREF_ACTIVATE; if (referenced_ptes) { /* |