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Commit b7c46d15 authored by Johannes Weiner's avatar Johannes Weiner Committed by Linus Torvalds
Browse files

mm: drop unneeded double negations 



Remove double negations where the operand is already boolean.

Signed-off-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: default avatarKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bba78819

mm/memcontrol.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

mm/memory.c

+1 −1
Original line number Diff line number Diff line
@@ -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:

mm/vmscan.c

+4 −4
Original line number Diff line number Diff line
@@ -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);