1 files changed, 8 insertions, 3 deletions

diff --git a/mm/vmscan.c b/mm/vmscan.c
index dea7abd31098..ba8228e0a806 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -630,9 +630,14 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 
                 referenced = page_referenced(page, 1,
                                                 sc->mem_cgroup, &vm_flags);
-                /* In active use or really unfreeable?  Activate it. */
+                /*
+                 * In active use or really unfreeable?  Activate it.
+                 * If page which have PG_mlocked lost isoltation race,
+                 * try_to_unmap moves it to unevictable list
+                 */
                 if (sc->order <= PAGE_ALLOC_COSTLY_ORDER &&
-                                        referenced && page_mapping_inuse(page))
+                                        referenced && page_mapping_inuse(page)
+                                        && !(vm_flags & VM_LOCKED))
                         goto activate_locked;
 
                 /*
@@ -1715,7 +1720,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
                  */
                 if (total_scanned > sc->swap_cluster_max +
                                         sc->swap_cluster_max / 2) {
-                        wakeup_pdflush(laptop_mode ? 0 : total_scanned);
+                        wakeup_flusher_threads(laptop_mode ? 0 : total_scanned);
                         sc->may_writepage = 1;
                 }