From: Yang Yang Date: Mon, 8 Aug 2022 00:56:45 +0000 (+0000) Subject: mm/vmscan: define macros for refaults in struct lruvec X-Git-Tag: howlett/maple/20220906~148 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=d039dcfca68994c15d08ea4d7ce2ec11b6170d1e;p=users%2Fjedix%2Flinux-maple.git mm/vmscan: define macros for refaults in struct lruvec The magic number 0 and 1 are used in several places in vmscan.c. Define macros for them to improve code readability. Link: https://lkml.kernel.org/r/20220808005644.1721066-1-yang.yang29@zte.com.cn Signed-off-by: Yang Yang Cc: Johannes Weiner Signed-off-by: Andrew Morton --- diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index e24b40c52468..8f571dc7c524 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -306,6 +306,8 @@ static inline bool is_active_lru(enum lru_list lru) return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE); } +#define WORKINGSET_ANON 0 +#define WORKINGSET_FILE 1 #define ANON_AND_FILE 2 enum lruvec_flags { diff --git a/mm/vmscan.c b/mm/vmscan.c index dc91646a87f8..06eeeae038dd 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -3228,7 +3228,7 @@ again: refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_ANON); - if (refaults != target_lruvec->refaults[0] || + if (refaults != target_lruvec->refaults[WORKINGSET_ANON] || inactive_is_low(target_lruvec, LRU_INACTIVE_ANON)) sc->may_deactivate |= DEACTIVATE_ANON; else @@ -3241,7 +3241,7 @@ again: */ refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_FILE); - if (refaults != target_lruvec->refaults[1] || + if (refaults != target_lruvec->refaults[WORKINGSET_FILE] || inactive_is_low(target_lruvec, LRU_INACTIVE_FILE)) sc->may_deactivate |= DEACTIVATE_FILE; else @@ -3557,9 +3557,9 @@ static void snapshot_refaults(struct mem_cgroup *target_memcg, pg_data_t *pgdat) target_lruvec = mem_cgroup_lruvec(target_memcg, pgdat); refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_ANON); - target_lruvec->refaults[0] = refaults; + target_lruvec->refaults[WORKINGSET_ANON] = refaults; refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_FILE); - target_lruvec->refaults[1] = refaults; + target_lruvec->refaults[WORKINGSET_FILE] = refaults; } /*