mm/vmscan: change the type of file from int to bool

Change the type of file from int to bool because is_file_lru return bool

Link: https://lkml.kernel.org/r/20240131103802.122920-1-gehao@kylinos.cnSigned-off-by: Hao Ge <gehao@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/vmscan.c

@@ -1998,7 +1998,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
 	LIST_HEAD(l_inactive);
 	unsigned nr_deactivate, nr_activate;
 	unsigned nr_rotated = 0;
-	int file = is_file_lru(lru);
+	bool file = is_file_lru(lru);
 	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
 
 	lru_add_drain();
@@ -2412,7 +2412,7 @@ static void get_scan_count(struct lruvec *lruvec, struct scan_control *sc,
 	denominator = ap + fp;
 out:
 	for_each_evictable_lru(lru) {
-		int file = is_file_lru(lru);
+		bool file = is_file_lru(lru);
 		unsigned long lruvec_size;
 		unsigned long low, min;
 		unsigned long scan;