mm: fix global NR_SLAB_.*CLAIMABLE counter reads

[karo-tx-linux.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6d30e914afb6c1b9ecc77b33ee5e01fc7a0ed6b3..626a430e32d1d1880eca953753ab2166a0a48d44 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4458,8 +4458,9 @@ long si_mem_available(void)
         * Part of the reclaimable slab consists of items that are in use,
         * and cannot be freed. Cap this estimate at the low watermark.
         */
-       available += global_page_state(NR_SLAB_RECLAIMABLE) -
-                    min(global_page_state(NR_SLAB_RECLAIMABLE) / 2, wmark_low);
+       available += global_node_page_state(NR_SLAB_RECLAIMABLE) -
+                    min(global_node_page_state(NR_SLAB_RECLAIMABLE) / 2,
+                        wmark_low);
 
        if (available < 0)
                available = 0;
@@ -4602,8 +4603,8 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
                global_node_page_state(NR_FILE_DIRTY),
                global_node_page_state(NR_WRITEBACK),
                global_node_page_state(NR_UNSTABLE_NFS),
-               global_page_state(NR_SLAB_RECLAIMABLE),
-               global_page_state(NR_SLAB_UNRECLAIMABLE),
+               global_node_page_state(NR_SLAB_RECLAIMABLE),
+               global_node_page_state(NR_SLAB_UNRECLAIMABLE),
                global_node_page_state(NR_FILE_MAPPED),
                global_node_page_state(NR_SHMEM),
                global_page_state(NR_PAGETABLE),
@@ -4891,9 +4892,11 @@ int numa_zonelist_order_handler(struct ctl_table *table, int write,
                                NUMA_ZONELIST_ORDER_LEN);
                        user_zonelist_order = oldval;
                } else if (oldval != user_zonelist_order) {
+                       mem_hotplug_begin();
                        mutex_lock(&zonelists_mutex);
                        build_all_zonelists(NULL, NULL);
                        mutex_unlock(&zonelists_mutex);
+                       mem_hotplug_done();
                }
        }
 out: