diff options
Diffstat (limited to 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 76 |
1 files changed, 44 insertions, 32 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index 8ce2620344b2..d701c335628c 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -165,6 +165,34 @@ atomic_long_t vm_numa_event[NR_VM_NUMA_EVENT_ITEMS] __cacheline_aligned_in_smp; EXPORT_SYMBOL(vm_zone_stat); EXPORT_SYMBOL(vm_node_stat); +#ifdef CONFIG_NUMA +static void fold_vm_zone_numa_events(struct zone *zone) +{ + unsigned long zone_numa_events[NR_VM_NUMA_EVENT_ITEMS] = { 0, }; + int cpu; + enum numa_stat_item item; + + for_each_online_cpu(cpu) { + struct per_cpu_zonestat *pzstats; + + pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); + for (item = 0; item < NR_VM_NUMA_EVENT_ITEMS; item++) + zone_numa_events[item] += xchg(&pzstats->vm_numa_event[item], 0); + } + + for (item = 0; item < NR_VM_NUMA_EVENT_ITEMS; item++) + zone_numa_event_add(zone_numa_events[item], zone, item); +} + +void fold_vm_numa_events(void) +{ + struct zone *zone; + + for_each_populated_zone(zone) + fold_vm_zone_numa_events(zone); +} +#endif + #ifdef CONFIG_SMP int calculate_pressure_threshold(struct zone *zone) @@ -771,34 +799,6 @@ static int fold_diff(int *zone_diff, int *node_diff) return changes; } -#ifdef CONFIG_NUMA -static void fold_vm_zone_numa_events(struct zone *zone) -{ - unsigned long zone_numa_events[NR_VM_NUMA_EVENT_ITEMS] = { 0, }; - int cpu; - enum numa_stat_item item; - - for_each_online_cpu(cpu) { - struct per_cpu_zonestat *pzstats; - - pzstats = per_cpu_ptr(zone->per_cpu_zonestats, cpu); - for (item = 0; item < NR_VM_NUMA_EVENT_ITEMS; item++) - zone_numa_events[item] += xchg(&pzstats->vm_numa_event[item], 0); - } - - for (item = 0; item < NR_VM_NUMA_EVENT_ITEMS; item++) - zone_numa_event_add(zone_numa_events[item], zone, item); -} - -void fold_vm_numa_events(void) -{ - struct zone *zone; - - for_each_populated_zone(zone) - fold_vm_zone_numa_events(zone); -} -#endif - /* * Update the zone counters for the current cpu. * @@ -1070,8 +1070,13 @@ static void fill_contig_page_info(struct zone *zone, for (order = 0; order < MAX_ORDER; order++) { unsigned long blocks; - /* Count number of free blocks */ - blocks = zone->free_area[order].nr_free; + /* + * Count number of free blocks. + * + * Access to nr_free is lockless as nr_free is used only for + * diagnostic purposes. Use data_race to avoid KCSAN warning. + */ + blocks = data_race(zone->free_area[order].nr_free); info->free_blocks_total += blocks; /* Count free base pages */ @@ -1225,6 +1230,7 @@ const char * const vmstat_text[] = { "nr_vmscan_immediate_reclaim", "nr_dirtied", "nr_written", + "nr_throttled_written", "nr_kernel_misc_reclaimable", "nr_foll_pin_acquired", "nr_foll_pin_released", @@ -1445,7 +1451,11 @@ static void frag_show_print(struct seq_file *m, pg_data_t *pgdat, seq_printf(m, "Node %d, zone %8s ", pgdat->node_id, zone->name); for (order = 0; order < MAX_ORDER; ++order) - seq_printf(m, "%6lu ", zone->free_area[order].nr_free); + /* + * Access to nr_free is lockless as nr_free is used only for + * printing purposes. Use data_race to avoid KCSAN warning. + */ + seq_printf(m, "%6lu ", data_race(zone->free_area[order].nr_free)); seq_putc(m, '\n'); } @@ -1656,6 +1666,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat, } seq_printf(m, "\n pages free %lu" + "\n boost %lu" "\n min %lu" "\n low %lu" "\n high %lu" @@ -1664,6 +1675,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat, "\n managed %lu" "\n cma %lu", zone_page_state(zone, NR_FREE_PAGES), + zone->watermark_boost, min_wmark_pages(zone), low_wmark_pages(zone), high_wmark_pages(zone), @@ -2179,7 +2191,7 @@ static void extfrag_show_print(struct seq_file *m, for (order = 0; order < MAX_ORDER; ++order) { fill_contig_page_info(zone, order, &info); index = __fragmentation_index(order, &info); - seq_printf(m, "%d.%03d ", index / 1000, index % 1000); + seq_printf(m, "%2d.%03d ", index / 1000, index % 1000); } seq_putc(m, '\n'); |