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>
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index fd4529d..9b10d87 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -648,7 +648,7 @@
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 05feaa1..3cbeaab 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -599,7 +599,7 @@
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 e219b47..cad5d52 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -971,7 +971,7 @@
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 @@
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 @@
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 @@
* 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);