[PATCH] zone_reclaim: dynamic slab reclaim

[pandora-kernel.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5da6bc4..cf913bd 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1304,7 +1304,8 @@ void show_free_areas(void)
                global_page_state(NR_WRITEBACK),
                global_page_state(NR_UNSTABLE_NFS),
                nr_free_pages(),
-               global_page_state(NR_SLAB),
+               global_page_state(NR_SLAB_RECLAIMABLE) +
+                       global_page_state(NR_SLAB_UNRECLAIMABLE),
                global_page_state(NR_FILE_MAPPED),
                global_page_state(NR_PAGETABLE));
 
@@ -2004,6 +2005,7 @@ static void __meminit free_area_init_core(struct pglist_data *pgdat,
 #ifdef CONFIG_NUMA
                zone->min_unmapped_pages = (realsize*sysctl_min_unmapped_ratio)
                                                / 100;
+               zone->min_slab_pages = (realsize * sysctl_min_slab_ratio) / 100;
 #endif
                zone->name = zone_names[j];
                spin_lock_init(&zone->lock);
@@ -2317,6 +2319,22 @@ int sysctl_min_unmapped_ratio_sysctl_handler(ctl_table *table, int write,
                                sysctl_min_unmapped_ratio) / 100;
        return 0;
 }
+
+int sysctl_min_slab_ratio_sysctl_handler(ctl_table *table, int write,
+       struct file *file, void __user *buffer, size_t *length, loff_t *ppos)
+{
+       struct zone *zone;
+       int rc;
+
+       rc = proc_dointvec_minmax(table, write, file, buffer, length, ppos);
+       if (rc)
+               return rc;
+
+       for_each_zone(zone)
+               zone->min_slab_pages = (zone->present_pages *
+                               sysctl_min_slab_ratio) / 100;
+       return 0;
+}
 #endif
 
 /*