diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memory_hotplug.c | 4 | ||||
| -rw-r--r-- | mm/page_alloc.c | 19 | ||||
| -rw-r--r-- | mm/page_owner.c | 4 | ||||
| -rw-r--r-- | mm/slub.c | 4 | ||||
| -rw-r--r-- | mm/vmscan.c | 17 |
5 files changed, 34 insertions, 14 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 8dccc317aac2..d620d0427b6b 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -689,6 +689,10 @@ static int online_pages_range(unsigned long start_pfn, unsigned long nr_pages, if (PageReserved(pfn_to_page(start_pfn))) for (i = 0; i < nr_pages; i++) { page = pfn_to_page(start_pfn + i); + if (PageHWPoison(page)) { + ClearPageReserved(page); + continue; + } (*online_page_callback)(page); onlined_pages++; } diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6d30e914afb6..80e4adb4c360 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5213,14 +5213,18 @@ static int __build_all_zonelists(void *data) memset(node_load, 0, sizeof(node_load)); #endif + /* + * This node is hotadded and no memory is yet present. So just + * building zonelists is fine - no need to touch other nodes. + */ if (self && !node_online(self->node_id)) { build_zonelists(self); - } - - for_each_online_node(nid) { - pg_data_t *pgdat = NODE_DATA(nid); + } else { + for_each_online_node(nid) { + pg_data_t *pgdat = NODE_DATA(nid); - build_zonelists(pgdat); + build_zonelists(pgdat); + } } /* @@ -5862,6 +5866,11 @@ static unsigned long __meminit zone_absent_pages_in_node(int nid, adjust_zone_range_for_zone_movable(nid, zone_type, node_start_pfn, node_end_pfn, &zone_start_pfn, &zone_end_pfn); + + /* If this node has no page within this zone, return 0. */ + if (zone_start_pfn == zone_end_pfn) + return 0; + nr_absent = __absent_pages_in_range(nid, zone_start_pfn, zone_end_pfn); /* diff --git a/mm/page_owner.c b/mm/page_owner.c index 0fd9dcf2c5dc..401feb070335 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -261,7 +261,7 @@ void pagetypeinfo_showmixedcount_print(struct seq_file *m, */ for (; pfn < end_pfn; ) { if (!pfn_valid(pfn)) { - pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); + pfn = ALIGN(pfn + 1, pageblock_nr_pages); continue; } @@ -531,7 +531,7 @@ static void init_pages_in_zone(pg_data_t *pgdat, struct zone *zone) */ for (; pfn < end_pfn; ) { if (!pfn_valid(pfn)) { - pfn = ALIGN(pfn + 1, MAX_ORDER_NR_PAGES); + pfn = ALIGN(pfn + 1, pageblock_nr_pages); continue; } diff --git a/mm/slub.c b/mm/slub.c index 1d3f9835f4ea..5ac0b5ad029b 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3358,8 +3358,8 @@ static void free_kmem_cache_nodes(struct kmem_cache *s) struct kmem_cache_node *n; for_each_kmem_cache_node(s, node, n) { - kmem_cache_free(kmem_cache_node, n); s->node[node] = NULL; + kmem_cache_free(kmem_cache_node, n); } } @@ -3389,8 +3389,8 @@ static int init_kmem_cache_nodes(struct kmem_cache *s) return 0; } - s->node[node] = n; init_kmem_cache_node(n); + s->node[node] = n; } return 1; } diff --git a/mm/vmscan.c b/mm/vmscan.c index a1af041930a6..efc9da21c5e6 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2632,16 +2632,23 @@ static bool shrink_node(pg_data_t *pgdat, struct scan_control *sc) sc->nr_scanned - nr_scanned, node_lru_pages); + /* + * Record the subtree's reclaim efficiency. The reclaimed + * pages from slab is excluded here because the corresponding + * scanned pages is not accounted. Moreover, freeing a page + * by slab shrinking depends on each slab's object population, + * making the cost model (i.e. scan:free) different from that + * of LRU. + */ + vmpressure(sc->gfp_mask, sc->target_mem_cgroup, true, + sc->nr_scanned - nr_scanned, + sc->nr_reclaimed - nr_reclaimed); + if (reclaim_state) { sc->nr_reclaimed += reclaim_state->reclaimed_slab; reclaim_state->reclaimed_slab = 0; } - /* Record the subtree's reclaim efficiency */ - vmpressure(sc->gfp_mask, sc->target_mem_cgroup, true, - sc->nr_scanned - nr_scanned, - sc->nr_reclaimed - nr_reclaimed); - if (sc->nr_reclaimed - nr_reclaimed) reclaimable = true; |