From 4f466c091b622de9f459a25f9a6b992f0679635a Mon Sep 17 00:00:00 2001 From: Andrey Ryabinin Date: Sat, 30 Nov 2019 17:55:24 -0800 Subject: [PATCH 2309/2944] mm/vmscan: remove unused lru_pages argument task #30476527 commit f87bccde6a7dd1bdb219a4045e8ac111590c9314 upstream Since 9092c71bb724 ("mm: use sc->priority for slab shrink targets") the argument 'unsigned long *lru_pages' passed around with no purpose. Remove it. Link: http://lkml.kernel.org/r/20190228083329.31892-4-aryabinin@virtuozzo.com Signed-off-by: Andrey Ryabinin Acked-by: Johannes Weiner Acked-by: Vlastimil Babka Acked-by: Mel Gorman Cc: Michal Hocko Cc: Rik van Riel Cc: William Kucharski Cc: John Hubbard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: zhongjiang-ali Reviewed-by: Xunlei Pang --- mm/vmscan.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 2dfa19b..5f815f4 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2421,8 +2421,7 @@ enum scan_balance { * nr[2] = file inactive pages to scan; nr[3] = file active pages to scan */ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, - struct scan_control *sc, unsigned long *nr, - unsigned long *lru_pages) + struct scan_control *sc, unsigned long *nr) { int swappiness = max(mem_cgroup_swappiness(memcg), 0); struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat; @@ -2573,7 +2572,6 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, fraction[1] = fp; denominator = ap + fp + 1; out: - *lru_pages = 0; for_each_evictable_lru(lru) { int file = is_file_lru(lru); unsigned long size; @@ -2615,7 +2613,6 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, BUG(); } - *lru_pages += size; nr[lru] = scan; } } @@ -2624,7 +2621,7 @@ static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, * This is a basic per-node page freer. Used by both kswapd and direct reclaim. */ static void shrink_node_memcg(struct pglist_data *pgdat, struct mem_cgroup *memcg, - struct scan_control *sc, unsigned long *lru_pages) + struct scan_control *sc) { struct lruvec *lruvec = mem_cgroup_lruvec(pgdat, memcg); unsigned long nr[NR_LRU_LISTS]; @@ -2636,7 +2633,7 @@ static void shrink_node_memcg(struct pglist_data *pgdat, struct mem_cgroup *memc struct blk_plug plug; bool scan_adjusted; - get_scan_count(lruvec, memcg, sc, nr, lru_pages); + get_scan_count(lruvec, memcg, sc, nr); /* Record the original scan target for proportional adjustments later */ memcpy(targets, nr, sizeof(nr)); @@ -2831,7 +2828,6 @@ static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc) do { struct mem_cgroup *root = sc->target_mem_cgroup; - unsigned long node_lru_pages = 0; struct mem_cgroup *memcg; memset(&sc->nr, 0, sizeof(sc->nr)); @@ -2841,7 +2837,6 @@ static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc) memcg = mem_cgroup_iter(root, NULL, NULL); do { - unsigned long lru_pages; unsigned long reclaimed; unsigned long scanned; @@ -2871,8 +2866,7 @@ static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc) reclaimed = sc->nr_reclaimed; scanned = sc->nr_scanned; - shrink_node_memcg(pgdat, memcg, sc, &lru_pages); - node_lru_pages += lru_pages; + shrink_node_memcg(pgdat, memcg, sc); shrink_slab(sc->gfp_mask, pgdat->node_id, memcg, sc->priority); @@ -3414,7 +3408,6 @@ unsigned long mem_cgroup_shrink_node(struct mem_cgroup *memcg, .reclaim_idx = MAX_NR_ZONES - 1, .may_swap = !noswap, }; - unsigned long lru_pages; sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) | (GFP_HIGHUSER_MOVABLE & ~GFP_RECLAIM_MASK); @@ -3431,7 +3424,7 @@ unsigned long mem_cgroup_shrink_node(struct mem_cgroup *memcg, * will pick up pages from other mem cgroup's as well. We hack * the priority and make it zero. */ - shrink_node_memcg(pgdat, memcg, &sc, &lru_pages); + shrink_node_memcg(pgdat, memcg, &sc); trace_mm_vmscan_memcg_softlimit_reclaim_end(sc.nr_reclaimed); -- 1.8.3.1