diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/vmstat.c | 20 | ||||
| -rw-r--r-- | mm/workingset.c | 43 |
2 files changed, 23 insertions, 40 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index de0c17076270..d17d66e85def 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -446,11 +446,6 @@ void mod_zone_page_state(struct zone *zone, enum zone_stat_item item, } EXPORT_SYMBOL(mod_zone_page_state); -void inc_zone_state(struct zone *zone, enum zone_stat_item item) -{ - mod_zone_state(zone, item, 1, 1); -} - void inc_zone_page_state(struct page *page, enum zone_stat_item item) { mod_zone_state(page_zone(page), item, 1, 1); @@ -539,15 +534,6 @@ void mod_zone_page_state(struct zone *zone, enum zone_stat_item item, } EXPORT_SYMBOL(mod_zone_page_state); -void inc_zone_state(struct zone *zone, enum zone_stat_item item) -{ - unsigned long flags; - - local_irq_save(flags); - __inc_zone_state(zone, item); - local_irq_restore(flags); -} - void inc_zone_page_state(struct page *page, enum zone_stat_item item) { unsigned long flags; @@ -967,9 +953,6 @@ const char * const vmstat_text[] = { "numa_local", "numa_other", #endif - "workingset_refault", - "workingset_activate", - "workingset_nodereclaim", "nr_anon_transparent_hugepages", "nr_shmem_hugepages", "nr_shmem_pmdmapped", @@ -984,6 +967,9 @@ const char * const vmstat_text[] = { "nr_isolated_anon", "nr_isolated_file", "nr_pages_scanned", + "workingset_refault", + "workingset_activate", + "workingset_nodereclaim", /* enum writeback_stat_item counters */ "nr_dirty_threshold", diff --git a/mm/workingset.c b/mm/workingset.c index 2af14bb5a349..69551cfae97b 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -16,7 +16,7 @@ /* * Double CLOCK lists * - * Per zone, two clock lists are maintained for file pages: the + * Per node, two clock lists are maintained for file pages: the * inactive and the active list. Freshly faulted pages start out at * the head of the inactive list and page reclaim scans pages from the * tail. Pages that are accessed multiple times on the inactive list @@ -141,11 +141,11 @@ * * Implementation * - * For each zone's file LRU lists, a counter for inactive evictions - * and activations is maintained (zone->inactive_age). + * For each node's file LRU lists, a counter for inactive evictions + * and activations is maintained (node->inactive_age). * * On eviction, a snapshot of this counter (along with some bits to - * identify the zone) is stored in the now empty page cache radix tree + * identify the node) is stored in the now empty page cache radix tree * slot of the evicted page. This is called a shadow entry. * * On cache misses for which there are shadow entries, an eligible @@ -153,7 +153,7 @@ */ #define EVICTION_SHIFT (RADIX_TREE_EXCEPTIONAL_ENTRY + \ - ZONES_SHIFT + NODES_SHIFT + \ + NODES_SHIFT + \ MEM_CGROUP_ID_SHIFT) #define EVICTION_MASK (~0UL >> EVICTION_SHIFT) @@ -167,33 +167,30 @@ */ static unsigned int bucket_order __read_mostly; -static void *pack_shadow(int memcgid, struct zone *zone, unsigned long eviction) +static void *pack_shadow(int memcgid, pg_data_t *pgdat, unsigned long eviction) { eviction >>= bucket_order; eviction = (eviction << MEM_CGROUP_ID_SHIFT) | memcgid; - eviction = (eviction << NODES_SHIFT) | zone_to_nid(zone); - eviction = (eviction << ZONES_SHIFT) | zone_idx(zone); + eviction = (eviction << NODES_SHIFT) | pgdat->node_id; eviction = (eviction << RADIX_TREE_EXCEPTIONAL_SHIFT); return (void *)(eviction | RADIX_TREE_EXCEPTIONAL_ENTRY); } -static void unpack_shadow(void *shadow, int *memcgidp, struct zone **zonep, +static void unpack_shadow(void *shadow, int *memcgidp, pg_data_t **pgdat, unsigned long *evictionp) { unsigned long entry = (unsigned long)shadow; - int memcgid, nid, zid; + int memcgid, nid; entry >>= RADIX_TREE_EXCEPTIONAL_SHIFT; - zid = entry & ((1UL << ZONES_SHIFT) - 1); - entry >>= ZONES_SHIFT; nid = entry & ((1UL << NODES_SHIFT) - 1); entry >>= NODES_SHIFT; memcgid = entry & ((1UL << MEM_CGROUP_ID_SHIFT) - 1); entry >>= MEM_CGROUP_ID_SHIFT; *memcgidp = memcgid; - *zonep = NODE_DATA(nid)->node_zones + zid; + *pgdat = NODE_DATA(nid); *evictionp = entry << bucket_order; } @@ -208,7 +205,7 @@ static void unpack_shadow(void *shadow, int *memcgidp, struct zone **zonep, void *workingset_eviction(struct address_space *mapping, struct page *page) { struct mem_cgroup *memcg = page_memcg(page); - struct zone *zone = page_zone(page); + struct pglist_data *pgdat = page_pgdat(page); int memcgid = mem_cgroup_id(memcg); unsigned long eviction; struct lruvec *lruvec; @@ -218,9 +215,9 @@ void *workingset_eviction(struct address_space *mapping, struct page *page) VM_BUG_ON_PAGE(page_count(page), page); VM_BUG_ON_PAGE(!PageLocked(page), page); - lruvec = mem_cgroup_lruvec(zone->zone_pgdat, memcg); + lruvec = mem_cgroup_lruvec(pgdat, memcg); eviction = atomic_long_inc_return(&lruvec->inactive_age); - return pack_shadow(memcgid, zone, eviction); + return pack_shadow(memcgid, pgdat, eviction); } /** @@ -228,7 +225,7 @@ void *workingset_eviction(struct address_space *mapping, struct page *page) * @shadow: shadow entry of the evicted page * * Calculates and evaluates the refault distance of the previously - * evicted page in the context of the zone it was allocated in. + * evicted page in the context of the node it was allocated in. * * Returns %true if the page should be activated, %false otherwise. */ @@ -240,10 +237,10 @@ bool workingset_refault(void *shadow) unsigned long eviction; struct lruvec *lruvec; unsigned long refault; - struct zone *zone; + struct pglist_data *pgdat; int memcgid; - unpack_shadow(shadow, &memcgid, &zone, &eviction); + unpack_shadow(shadow, &memcgid, &pgdat, &eviction); rcu_read_lock(); /* @@ -267,7 +264,7 @@ bool workingset_refault(void *shadow) rcu_read_unlock(); return false; } - lruvec = mem_cgroup_lruvec(zone->zone_pgdat, memcg); + lruvec = mem_cgroup_lruvec(pgdat, memcg); refault = atomic_long_read(&lruvec->inactive_age); active_file = lruvec_lru_size(lruvec, LRU_ACTIVE_FILE); rcu_read_unlock(); @@ -290,10 +287,10 @@ bool workingset_refault(void *shadow) */ refault_distance = (refault - eviction) & EVICTION_MASK; - inc_zone_state(zone, WORKINGSET_REFAULT); + inc_node_state(pgdat, WORKINGSET_REFAULT); if (refault_distance <= active_file) { - inc_zone_state(zone, WORKINGSET_ACTIVATE); + inc_node_state(pgdat, WORKINGSET_ACTIVATE); return true; } return false; @@ -436,7 +433,7 @@ static enum lru_status shadow_lru_isolate(struct list_head *item, } } BUG_ON(node->count); - inc_zone_state(page_zone(virt_to_page(node)), WORKINGSET_NODERECLAIM); + inc_node_state(page_pgdat(virt_to_page(node)), WORKINGSET_NODERECLAIM); if (!__radix_tree_delete_node(&mapping->page_tree, node)) BUG(); |