diff options
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index ee744fa3b93d..ab2c0ff8c2e6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4757,6 +4757,8 @@ int local_memory_node(int node) } #endif +static void setup_min_unmapped_ratio(void); +static void setup_min_slab_ratio(void); #else /* CONFIG_NUMA */ static void set_zonelist_order(void) @@ -5878,9 +5880,6 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat) zone->managed_pages = is_highmem_idx(j) ? realsize : freesize; #ifdef CONFIG_NUMA zone->node = nid; - pgdat->min_unmapped_pages += (freesize*sysctl_min_unmapped_ratio) - / 100; - pgdat->min_slab_pages += (freesize * sysctl_min_slab_ratio) / 100; #endif zone->name = zone_names[j]; zone->zone_pgdat = pgdat; @@ -6801,6 +6800,12 @@ int __meminit init_per_zone_wmark_min(void) setup_per_zone_wmarks(); refresh_zone_stat_thresholds(); setup_per_zone_lowmem_reserve(); + +#ifdef CONFIG_NUMA + setup_min_unmapped_ratio(); + setup_min_slab_ratio(); +#endif + return 0; } core_initcall(init_per_zone_wmark_min) @@ -6842,43 +6847,58 @@ int watermark_scale_factor_sysctl_handler(struct ctl_table *table, int write, } #ifdef CONFIG_NUMA +static void setup_min_unmapped_ratio(void) +{ + pg_data_t *pgdat; + struct zone *zone; + + for_each_online_pgdat(pgdat) + pgdat->min_unmapped_pages = 0; + + for_each_zone(zone) + zone->zone_pgdat->min_unmapped_pages += (zone->managed_pages * + sysctl_min_unmapped_ratio) / 100; +} + + int sysctl_min_unmapped_ratio_sysctl_handler(struct ctl_table *table, int write, void __user *buffer, size_t *length, loff_t *ppos) { - struct pglist_data *pgdat; - struct zone *zone; int rc; rc = proc_dointvec_minmax(table, write, buffer, length, ppos); if (rc) return rc; + setup_min_unmapped_ratio(); + + return 0; +} + +static void setup_min_slab_ratio(void) +{ + pg_data_t *pgdat; + struct zone *zone; + for_each_online_pgdat(pgdat) pgdat->min_slab_pages = 0; for_each_zone(zone) - zone->zone_pgdat->min_unmapped_pages += (zone->managed_pages * - sysctl_min_unmapped_ratio) / 100; - return 0; + zone->zone_pgdat->min_slab_pages += (zone->managed_pages * + sysctl_min_slab_ratio) / 100; } int sysctl_min_slab_ratio_sysctl_handler(struct ctl_table *table, int write, void __user *buffer, size_t *length, loff_t *ppos) { - struct pglist_data *pgdat; - struct zone *zone; int rc; rc = proc_dointvec_minmax(table, write, buffer, length, ppos); if (rc) return rc; - for_each_online_pgdat(pgdat) - pgdat->min_slab_pages = 0; + setup_min_slab_ratio(); - for_each_zone(zone) - zone->zone_pgdat->min_slab_pages += (zone->managed_pages * - sysctl_min_slab_ratio) / 100; return 0; } #endif |