x86: clean up relocate_initrd

1. move that before zone_sizes_init ...
2. add free_early for one old one, otherwise it will be be reserved again
   when we init highmem.
Signed-off-by: NYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/kernel/setup_32.c

@@ -584,6 +584,9 @@ static void __init relocate_initrd(void)
 	printk(KERN_INFO "Copied RAMDISK from %016llx - %016llx to %08llx - %08llx\n",
 		ramdisk_image, ramdisk_image + ramdisk_size - 1,
 		ramdisk_here, ramdisk_here + ramdisk_size - 1);
+
+	/* need to free that, otherwise init highmem will reserve it again */
+	free_early(ramdisk_image, ramdisk_image+ramdisk_size);
 }
 
 #endif /* CONFIG_BLK_DEV_INITRD */
@@ -801,10 +804,6 @@ void __init setup_arch(char **cmdline_p)
 		init_ohci1394_dma_on_all_controllers();
 #endif
 
-	remapped_pgdat_init();
-	sparse_init();
-	zone_sizes_init();
-
 	/*
 	 * NOTE: at this point the bootmem allocator is fully available.
 	 */
@@ -813,6 +812,10 @@ void __init setup_arch(char **cmdline_p)
 	relocate_initrd();
 #endif
 
+	remapped_pgdat_init();
+	sparse_init();
+	zone_sizes_init();
+
 	paravirt_post_allocator_init();
 
 	dmi_scan_machine();