mm: drop unneeded double negations

Remove double negations where the operand is already boolean.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 6 insertions, 6 deletions

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index fd4529d86de5..9b10d8753784 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -648,7 +648,7 @@ unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan,
         int nid = z->zone_pgdat->node_id;
         int zid = zone_idx(z);
         struct mem_cgroup_per_zone *mz;
-        int lru = LRU_FILE * !!file + !!active;
+        int lru = LRU_FILE * file + active;
         int ret;
 
         BUG_ON(!mem_cont);
diff --git a/mm/memory.c b/mm/memory.c
index 05feaa11d87c..3cbeaaba5642 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -599,7 +599,7 @@ copy_one_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
         if (page) {
                 get_page(page);
                 page_dup_rmap(page);
-                rss[!!PageAnon(page)]++;
+                rss[PageAnon(page)]++;
         }
 
 out_set_pte:
diff --git a/mm/vmscan.c b/mm/vmscan.c
index e219b47fc50b..cad5d528a6f0 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -971,7 +971,7 @@ static unsigned long isolate_pages_global(unsigned long nr,
         if (file)
                 lru += LRU_FILE;
         return isolate_lru_pages(nr, &z->lru[lru].list, dst, scanned, order,
-                                                                mode, !!file);
+                                                                mode, file);
 }
 
 /*
@@ -1209,7 +1209,7 @@ static unsigned long shrink_inactive_list(unsigned long max_scan,
                         lru = page_lru(page);
                         add_page_to_lru_list(zone, page, lru);
                         if (is_active_lru(lru)) {
-                                int file = !!is_file_lru(lru);
+                                int file = is_file_lru(lru);
                                 reclaim_stat->recent_rotated[file]++;
                         }
                         if (!pagevec_add(&pvec, page)) {
@@ -1319,7 +1319,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
         if (scanning_global_lru(sc)) {
                 zone->pages_scanned += pgscanned;
         }
-        reclaim_stat->recent_scanned[!!file] += nr_taken;
+        reclaim_stat->recent_scanned[file] += nr_taken;
 
         __count_zone_vm_events(PGREFILL, zone, pgscanned);
         if (file)
@@ -1372,7 +1372,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
          * helps balance scan pressure between file and anonymous pages in
          * get_scan_ratio.
          */
-        reclaim_stat->recent_rotated[!!file] += nr_rotated;
+        reclaim_stat->recent_rotated[file] += nr_rotated;
 
         move_active_pages_to_lru(zone, &l_active,
                                                 LRU_ACTIVE + file * LRU_FILE);