Messages in this thread Patch in this message | | | Date | Wed, 18 Nov 2020 00:49:19 +0800 | From | Hui Su <> | Subject | [PATCH] mm/lru: simplify is_file_lru() and is_active_lru() |
| |
page->lru bit 0 can tell whether the page is avtive page or not. page->lru bit 1 can tell whether the page is file page or not.
Signed-off-by: Hui Su <sh_def@163.com> --- include/linux/mmzone.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index fb3bf696c05e..294369c652d0 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -258,12 +258,12 @@ enum lru_list { static inline bool is_file_lru(enum lru_list lru) { - return (lru == LRU_INACTIVE_FILE || lru == LRU_ACTIVE_FILE); + return lru & LRU_FILE; } static inline bool is_active_lru(enum lru_list lru) { - return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE); + return lru & LRU_ACTIVE; } #define ANON_AND_FILE 2 -- 2.29.0
| |