Merge tag 'backport/v3.14.24-ltsi-rc1/pci-rcar-gen2-to-v3.16' into backport/v3.14...

[platform/adaptation/renesas_rcar/renesas_kernel.git] / mm / memory_hotplug.c

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 489f235..f6f2383 100644 (file)
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -9,7 +9,6 @@
 #include <linux/swap.h>
 #include <linux/interrupt.h>
 #include <linux/pagemap.h>
-#include <linux/bootmem.h>
 #include <linux/compiler.h>
 #include <linux/export.h>
 #include <linux/pagevec.h>
@@ -269,7 +268,7 @@ static void fix_zone_id(struct zone *zone, unsigned long start_pfn,
 }
 
 /* Can fail with -ENOMEM from allocating a wait table with vmalloc() or
- * alloc_bootmem_node_nopanic() */
+ * alloc_bootmem_node_nopanic()/memblock_virt_alloc_node_nopanic() */
 static int __ref ensure_zone_is_initialized(struct zone *zone,
                        unsigned long start_pfn, unsigned long num_pages)
 {
@@ -1108,17 +1107,18 @@ int __ref add_memory(int nid, u64 start, u64 size)
        if (ret)
                return ret;
 
-       lock_memory_hotplug();
-
        res = register_memory_resource(start, size);
        ret = -EEXIST;
        if (!res)
-               goto out;
+               return ret;
 
        {       /* Stupid hack to suppress address-never-null warning */
                void *p = NODE_DATA(nid);
                new_pgdat = !p;
        }
+
+       lock_memory_hotplug();
+
        new_node = !node_online(nid);
        if (new_node) {
                pgdat = hotadd_new_pgdat(nid, start);
@@ -1310,7 +1310,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 #ifdef CONFIG_DEBUG_VM
                        printk(KERN_ALERT "removing pfn %lx from LRU failed\n",
                               pfn);
-                       dump_page(page);
+                       dump_page(page, "failed to remove from LRU");
 #endif
                        put_page(page);
                        /* Because we don't have big zone->lock. we should
@@ -1332,7 +1332,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
                 * alloc_migrate_target should be improooooved!!
                 * migrate_pages returns # of failed pages.
                 */
-               ret = migrate_pages(&source, alloc_migrate_target, 0,
+               ret = migrate_pages(&source, alloc_migrate_target, NULL, 0,
                                        MIGRATE_SYNC, MR_MEMORY_HOTPLUG);
                if (ret)
                        putback_movable_pages(&source);
@@ -1446,6 +1446,7 @@ static int __init cmdline_parse_movable_node(char *p)
         * the kernel away from hotpluggable memory.
         */
        memblock_set_bottom_up(true);
+       movable_node_enabled = true;
 #else
        pr_warn("movable_node option not supported\n");
 #endif