x86/retpoline/ftrace: Convert ftrace assembler indirect jumps

[pandora-kernel.git] / mm / vmscan.c

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 87de9c6..ab98dc6 100644 (file)
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1215,7 +1215,7 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
                         * anon page which don't already have a swap slot is
                         * pointless.
                         */
-                       if (nr_swap_pages <= 0 && PageAnon(cursor_page) &&
+                       if (nr_swap_pages <= 0 && PageSwapBacked(cursor_page) &&
                            !PageSwapCache(cursor_page))
                                break;
 
@@ -1911,7 +1911,8 @@ static void get_scan_count(struct zone *zone, struct scan_control *sc,
         * latencies, so it's better to scan a minimum amount there as
         * well.
         */
-       if (scanning_global_lru(sc) && current_is_kswapd())
+       if (scanning_global_lru(sc) && current_is_kswapd() &&
+           zone->all_unreclaimable)
                force_scan = true;
        if (!scanning_global_lru(sc))
                force_scan = true;
@@ -1976,10 +1977,10 @@ static void get_scan_count(struct zone *zone, struct scan_control *sc,
         * proportional to the fraction of recently scanned pages on
         * each list that were recently referenced and in active use.
         */
-       ap = (anon_prio + 1) * (reclaim_stat->recent_scanned[0] + 1);
+       ap = anon_prio * (reclaim_stat->recent_scanned[0] + 1);
        ap /= reclaim_stat->recent_rotated[0] + 1;
 
-       fp = (file_prio + 1) * (reclaim_stat->recent_scanned[1] + 1);
+       fp = file_prio * (reclaim_stat->recent_scanned[1] + 1);
        fp /= reclaim_stat->recent_rotated[1] + 1;
        spin_unlock_irq(&zone->lru_lock);
 
@@ -1992,7 +1993,7 @@ out:
                unsigned long scan;
 
                scan = zone_nr_lru_pages(zone, sc, l);
-               if (priority || noswap) {
+               if (priority || noswap || !vmscan_swappiness(sc)) {
                        scan >>= priority;
                        if (!scan && force_scan)
                                scan = SWAP_CLUSTER_MAX;
@@ -2049,8 +2050,9 @@ static inline bool should_continue_reclaim(struct zone *zone,
         * inactive lists are large enough, continue reclaiming
         */
        pages_for_compaction = (2UL << sc->order);
-       inactive_lru_pages = zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON) +
-                               zone_nr_lru_pages(zone, sc, LRU_INACTIVE_FILE);
+       inactive_lru_pages = zone_nr_lru_pages(zone, sc, LRU_INACTIVE_FILE);
+       if (nr_swap_pages > 0)
+               inactive_lru_pages += zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON);
        if (sc->nr_reclaimed < pages_for_compaction &&
                        inactive_lru_pages > pages_for_compaction)
                return true;
@@ -2293,7 +2295,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
        unsigned long writeback_threshold;
        bool aborted_reclaim;
 
-       get_mems_allowed();
        delayacct_freepages_start();
 
        if (scanning_global_lru(sc))
@@ -2357,7 +2358,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
 
 out:
        delayacct_freepages_end();
-       put_mems_allowed();
 
        if (sc->nr_reclaimed)
                return sc->nr_reclaimed;
@@ -3015,6 +3015,11 @@ static int kswapd(void *p)
                                                &balanced_classzone_idx);
                }
        }
+
+       tsk->flags &= ~(PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD);
+       current->reclaim_state = NULL;
+       lockdep_clear_current_reclaim_state();
+
        return 0;
 }