Linux-libre 4.4-gnupck-4.4-gnu

1 files changed, 17 insertions, 20 deletions

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 4e05caed1..e14ab1ea2 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -175,7 +175,7 @@ static bool sane_reclaim(struct scan_control *sc)
 	if (!memcg)
 		return true;
 #ifdef CONFIG_CGROUP_WRITEBACK
-	if (cgroup_on_dfl(memcg->css.cgroup))
+	if (cgroup_subsys_on_dfl(memory_cgrp_subsys))
 		return true;
 #endif
 	return false;
@@ -194,7 +194,7 @@ static bool sane_reclaim(struct scan_control *sc)
 
 static unsigned long zone_reclaimable_pages(struct zone *zone)
 {
-	int nr;
+	unsigned long nr;
 
 	nr = zone_page_state(zone, NR_ACTIVE_FILE) +
 	     zone_page_state(zone, NR_INACTIVE_FILE);
@@ -1476,7 +1476,7 @@ static int too_many_isolated(struct zone *zone, int file,
 	 * won't get blocked by normal direct-reclaimers, forming a circular
 	 * deadlock.
 	 */
-	if ((sc->gfp_mask & GFP_IOFS) == GFP_IOFS)
+	if ((sc->gfp_mask & (__GFP_IO | __GFP_FS)) == (__GFP_IO | __GFP_FS))
 		inactive >>= 3;
 
 	return isolated > inactive;
@@ -1859,17 +1859,14 @@ static void shrink_active_list(unsigned long nr_to_scan,
 }
 
 #ifdef CONFIG_SWAP
-static int inactive_anon_is_low_global(struct zone *zone)
+static bool inactive_anon_is_low_global(struct zone *zone)
 {
 	unsigned long active, inactive;
 
 	active = zone_page_state(zone, NR_ACTIVE_ANON);
 	inactive = zone_page_state(zone, NR_INACTIVE_ANON);
 
-	if (inactive * zone->inactive_ratio < active)
-		return 1;
-
-	return 0;
+	return inactive * zone->inactive_ratio < active;
 }
 
 /**
@@ -1879,14 +1876,14 @@ static int inactive_anon_is_low_global(struct zone *zone)
  * Returns true if the zone does not have enough inactive anon pages,
  * meaning some active anon pages need to be deactivated.
  */
-static int inactive_anon_is_low(struct lruvec *lruvec)
+static bool inactive_anon_is_low(struct lruvec *lruvec)
 {
 	/*
 	 * If we don't have swap space, anonymous page deactivation
 	 * is pointless.
 	 */
 	if (!total_swap_pages)
-		return 0;
+		return false;
 
 	if (!mem_cgroup_disabled())
 		return mem_cgroup_inactive_anon_is_low(lruvec);
@@ -1894,9 +1891,9 @@ static int inactive_anon_is_low(struct lruvec *lruvec)
 	return inactive_anon_is_low_global(lruvec_zone(lruvec));
 }
 #else
-static inline int inactive_anon_is_low(struct lruvec *lruvec)
+static inline bool inactive_anon_is_low(struct lruvec *lruvec)
 {
-	return 0;
+	return false;
 }
 #endif
 
@@ -1914,7 +1911,7 @@ static inline int inactive_anon_is_low(struct lruvec *lruvec)
  * This uses a different ratio than the anonymous pages, because
  * the page cache uses a use-once replacement algorithm.
  */
-static int inactive_file_is_low(struct lruvec *lruvec)
+static bool inactive_file_is_low(struct lruvec *lruvec)
 {
 	unsigned long inactive;
 	unsigned long active;
@@ -1925,7 +1922,7 @@ static int inactive_file_is_low(struct lruvec *lruvec)
 	return active > inactive;
 }
 
-static int inactive_list_is_low(struct lruvec *lruvec, enum lru_list lru)
+static bool inactive_list_is_low(struct lruvec *lruvec, enum lru_list lru)
 {
 	if (is_file_lru(lru))
 		return inactive_file_is_low(lruvec);
@@ -2483,7 +2480,7 @@ static inline bool compaction_ready(struct zone *zone, int order)
 	balance_gap = min(low_wmark_pages(zone), DIV_ROUND_UP(
 			zone->managed_pages, KSWAPD_ZONE_BALANCE_GAP_RATIO));
 	watermark = high_wmark_pages(zone) + balance_gap + (2UL << order);
-	watermark_ok = zone_watermark_ok_safe(zone, 0, watermark, 0, 0);
+	watermark_ok = zone_watermark_ok_safe(zone, 0, watermark, 0);
 
 	/*
 	 * If compaction is deferred, reclaim up to a point where
@@ -2972,7 +2969,7 @@ static bool zone_balanced(struct zone *zone, int order,
 			  unsigned long balance_gap, int classzone_idx)
 {
 	if (!zone_watermark_ok_safe(zone, order, high_wmark_pages(zone) +
-				    balance_gap, classzone_idx, 0))
+				    balance_gap, classzone_idx))
 		return false;
 
 	if (IS_ENABLED(CONFIG_COMPACTION) && order && compaction_suitable(zone,
@@ -3715,10 +3712,10 @@ static inline unsigned long zone_unmapped_file_pages(struct zone *zone)
 }
 
 /* Work out how many page cache pages we can reclaim in this reclaim_mode */
-static long zone_pagecache_reclaimable(struct zone *zone)
+static unsigned long zone_pagecache_reclaimable(struct zone *zone)
 {
-	long nr_pagecache_reclaimable;
-	long delta = 0;
+	unsigned long nr_pagecache_reclaimable;
+	unsigned long delta = 0;
 
 	/*
 	 * If RECLAIM_UNMAP is set, then all file pages are considered
@@ -3813,7 +3810,7 @@ int zone_reclaim(struct zone *zone, gfp_t gfp_mask, unsigned int order)
 	/*
 	 * Do not scan if the allocation should not be delayed.
 	 */
-	if (!(gfp_mask & __GFP_WAIT) || (current->flags & PF_MEMALLOC))
+	if (!gfpflags_allow_blocking(gfp_mask) || (current->flags & PF_MEMALLOC))
 		return ZONE_RECLAIM_NOSCAN;
 
 	/*