mm/page-flags: make PageUptodate return bool

Make PageUptodate return bool to align the return values of
folio_test_uptodate function

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Hao Ge <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Josef Bacik <[email protected]>
Cc: Matthew Wilcox (Oracle) <[email protected]>
Cc: Ruihan Li <[email protected]>
Cc: Vishal Moola (Oracle) <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: GeHao01994

include/linux/page-flags.h

@@ -789,7 +789,7 @@ static inline bool folio_test_uptodate(const struct folio *folio)
 	return ret;
 }
 
-static inline int PageUptodate(const struct page *page)
+static inline bool PageUptodate(const struct page *page)
 {
 	return folio_test_uptodate(page_folio(page));
 }