memcg will come in handy in get_scan_count(). It can already be used for getting swappiness immediately in get_scan_count() instead of passing it around. The following patches will add more memcg-related values, which will be used there. Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> --- mm/vmscan.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index bb01b04154ad..acc6bff84e26 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1957,10 +1957,11 @@ enum scan_balance { * nr[0] = anon inactive pages to scan; nr[1] = anon active pages to scan * nr[2] = file inactive pages to scan; nr[3] = file active pages to scan */ -static void get_scan_count(struct lruvec *lruvec, int swappiness, +static void get_scan_count(struct lruvec *lruvec, struct mem_cgroup *memcg, struct scan_control *sc, unsigned long *nr, unsigned long *lru_pages) { + int swappiness = mem_cgroup_swappiness(memcg); struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat; u64 fraction[2]; u64 denominator = 0; /* gcc */ @@ -2184,9 +2185,10 @@ static inline void init_tlb_ubc(void) /* * This is a basic per-zone page freer. Used by both kswapd and direct reclaim. */ -static void shrink_lruvec(struct lruvec *lruvec, int swappiness, - struct scan_control *sc, unsigned long *lru_pages) +static void shrink_zone_memcg(struct zone *zone, struct mem_cgroup *memcg, + struct scan_control *sc, unsigned long *lru_pages) { + struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg); unsigned long nr[NR_LRU_LISTS]; unsigned long targets[NR_LRU_LISTS]; unsigned long nr_to_scan; @@ -2196,7 +2198,7 @@ static void shrink_lruvec(struct lruvec *lruvec, int swappiness, struct blk_plug plug; bool scan_adjusted; - get_scan_count(lruvec, swappiness, sc, nr, lru_pages); + get_scan_count(lruvec, memcg, sc, nr, lru_pages); /* Record the original scan target for proportional adjustments later */ memcpy(targets, nr, sizeof(nr)); @@ -2400,8 +2402,6 @@ static bool shrink_zone(struct zone *zone, struct scan_control *sc, unsigned long lru_pages; unsigned long reclaimed; unsigned long scanned; - struct lruvec *lruvec; - int swappiness; if (mem_cgroup_low(root, memcg)) { if (!sc->may_thrash) @@ -2409,12 +2409,10 @@ static bool shrink_zone(struct zone *zone, struct scan_control *sc, mem_cgroup_events(memcg, MEMCG_LOW, 1); } - lruvec = mem_cgroup_zone_lruvec(zone, memcg); - swappiness = mem_cgroup_swappiness(memcg); reclaimed = sc->nr_reclaimed; scanned = sc->nr_scanned; - shrink_lruvec(lruvec, swappiness, sc, &lru_pages); + shrink_zone_memcg(zone, memcg, sc, &lru_pages); zone_lru_pages += lru_pages; if (memcg && is_classzone) @@ -2884,8 +2882,6 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *memcg, .may_unmap = 1, .may_swap = !noswap, }; - struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, memcg); - int swappiness = mem_cgroup_swappiness(memcg); unsigned long lru_pages; sc.gfp_mask = (gfp_mask & GFP_RECLAIM_MASK) | @@ -2902,7 +2898,7 @@ unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *memcg, * will pick up pages from other mem cgroup's as well. We hack * the priority and make it zero. */ - shrink_lruvec(lruvec, swappiness, &sc, &lru_pages); + shrink_zone_memcg(zone, memcg, &sc, &lru_pages); trace_mm_vmscan_memcg_softlimit_reclaim_end(sc.nr_reclaimed); -- 2.1.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>