From: Andrey Ryabinin Date: Sun, 1 Dec 2019 01:55:24 +0000 (-0800) Subject: mm/vmscan: remove unused lru_pages argument X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5bb230aa94f79d302a2c46ba3911f099ede626ec;p=platform%2Fkernel%2Flinux-rpi.git mm/vmscan: remove unused lru_pages argument 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 Change-Id: I8a61dd9dab063e9db2d58aafe71f5a6238a3a525 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 [backport of the commit c42875e38b6fb9546f665a397b66e3a4cc2e5041 from mainline] Signed-off-by: Marek Szyprowski --- diff --git a/mm/vmscan.c b/mm/vmscan.c index 7fde5f9..adacd65 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2302,8 +2302,7 @@ 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 = mem_cgroup_swappiness(memcg); struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat; @@ -2454,7 +2453,6 @@ 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 lruvec_size; @@ -2552,7 +2550,6 @@ out: BUG(); } - *lru_pages += lruvec_size; nr[lru] = scan; } } @@ -2561,7 +2558,7 @@ out: * 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]; @@ -2573,7 +2570,7 @@ 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)); @@ -2761,7 +2758,6 @@ 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)); @@ -2771,7 +2767,6 @@ 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; @@ -2808,8 +2803,7 @@ 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); @@ -3320,7 +3314,6 @@ unsigned long mem_cgroup_shrink_node(struct mem_cgroup *memcg, .reclaim_idx = MAX_NR_ZONES - 1, .may_swap = !noswap, }; - unsigned long lru_pages; WARN_ON_ONCE(!current->reclaim_state); @@ -3337,7 +3330,7 @@ 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);