clk: rockchip: rk3399: Don't allow VPLL as aclk_cci clock source

[firefly-linux-kernel-4.4.55.git] / mm / vmscan.c

diff --git a/mm/vmscan.c b/mm/vmscan.c
index de1c59d8daa32ac3908e549cfdfd2df16f99b669..bfc5050cbd01ba94ff3d1305b4a5b7ce87941a10 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -277,6 +277,7 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
        int nid = shrinkctl->nid;
        long batch_size = shrinker->batch ? shrinker->batch
                                          : SHRINK_BATCH;
+       long scanned = 0, next_deferred;
 
        freeable = shrinker->count_objects(shrinker, shrinkctl);
        if (freeable == 0)
@@ -298,7 +299,9 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
                pr_err("shrink_slab: %pF negative objects to delete nr=%ld\n",
                       shrinker->scan_objects, total_scan);
                total_scan = freeable;
-       }
+               next_deferred = nr;
+       } else
+               next_deferred = total_scan;
 
        /*
         * We need to avoid excessive windup on filesystem shrinkers
@@ -355,17 +358,22 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
 
                count_vm_events(SLABS_SCANNED, nr_to_scan);
                total_scan -= nr_to_scan;
+               scanned += nr_to_scan;
 
                cond_resched();
        }
 
+       if (next_deferred >= scanned)
+               next_deferred -= scanned;
+       else
+               next_deferred = 0;
        /*
         * move the unused scan count back into the shrinker in a
         * manner that handles concurrent updates. If we exhausted the
         * scan, there is no need to do an update.
         */
-       if (total_scan > 0)
-               new_nr = atomic_long_add_return(total_scan,
+       if (next_deferred > 0)
+               new_nr = atomic_long_add_return(next_deferred,
                                                &shrinker->nr_deferred[nid]);
        else
                new_nr = atomic_long_read(&shrinker->nr_deferred[nid]);