mm/page_alloc: make bad_range() return bool

bad_range() can return bool, so let us change it.

Link: https://lkml.kernel.org/r/20240221073227.276234-1-gehao@kylinos.cnSigned-off-by: Hao Ge <gehao@kylinos.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/page_alloc.c

@@ -464,19 +464,19 @@ static int page_outside_zone_boundaries(struct zone *zone, struct page *page)
 /*
  * Temporary debugging check for pages not lying within a given zone.
  */
-static int __maybe_unused bad_range(struct zone *zone, struct page *page)
+static bool __maybe_unused bad_range(struct zone *zone, struct page *page)
 {
 	if (page_outside_zone_boundaries(zone, page))
-		return 1;
+		return true;
 	if (zone != page_zone(page))
-		return 1;
+		return true;
 
-	return 0;
+	return false;
 }
 #else
-static inline int __maybe_unused bad_range(struct zone *zone, struct page *page)
+static inline bool __maybe_unused bad_range(struct zone *zone, struct page *page)
 {
-	return 0;
+	return false;
 }
 #endif