1 files changed, 11 insertions, 6 deletions

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 54155268dfca..94e86dd6954c 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;
 
                 /*
@@ -1104,7 +1109,7 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
                  */
                 if (nr_freed < nr_taken && !current_is_kswapd() &&
                     lumpy_reclaim) {
-                        congestion_wait(WRITE, HZ/10);
+                        congestion_wait(BLK_RW_ASYNC, HZ/10);
 
                         /*
                          * The attempt at page out may have made some
@@ -1721,7 +1726,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
 
                 /* Take a nap, wait for some writeback to complete */
                 if (sc->nr_scanned && priority < DEF_PRIORITY - 2)
-                        congestion_wait(WRITE, HZ/10);
+                        congestion_wait(BLK_RW_ASYNC, HZ/10);
         }
         /* top priority shrink_zones still had more to do? don't OOM, then */
         if (!sc->all_unreclaimable && scanning_global_lru(sc))
@@ -1960,7 +1965,7 @@ loop_again:
                  * another pass across the zones.
                  */
                 if (total_scanned && priority < DEF_PRIORITY - 2)
-                        congestion_wait(WRITE, HZ/10);
+                        congestion_wait(BLK_RW_ASYNC, HZ/10);
 
                 /*
                  * We do this so kswapd doesn't build up large priorities for
@@ -2233,7 +2238,7 @@ unsigned long shrink_all_memory(unsigned long nr_pages)
                                 goto out;
 
                         if (sc.nr_scanned && prio < DEF_PRIORITY - 2)
-                                congestion_wait(WRITE, HZ / 10);
+                                congestion_wait(BLK_RW_ASYNC, HZ / 10);
                 }
         }