Straight-forward migration to use bootmem2 on the author's computer.

Signed-off-by: Johannes Weiner <hannes@saeurebad.de>
---

Index: linux-2.6/arch/x86/kernel/setup_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_32.c
+++ linux-2.6/arch/x86/kernel/setup_32.c
@@ -641,7 +641,9 @@ void __init setup_bootmem_allocator(void
 	/*
 	 * Initialize the boot-time allocator (with low memory only):
 	 */
-	bootmap_size = init_bootmem(min_low_pfn, max_low_pfn);
+	bootmem_register(0, max_low_pfn);
+	bootmap_size = bootmem_map_pages() << PAGE_SHIFT;
+	bootmem_setup(min_low_pfn);
 
 	register_bootmem_low_pages(max_low_pfn);
 
Index: linux-2.6/arch/x86/mm/init_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/init_32.c
+++ linux-2.6/arch/x86/mm/init_32.c
@@ -585,7 +585,7 @@ void __init mem_init(void)
 	}
 #endif
 	/* this will put all low memory onto the freelists */
-	totalram_pages += free_all_bootmem();
+	totalram_pages += bootmem_release();
 
 	reservedpages = 0;
 	for (tmp = 0; tmp < max_low_pfn; tmp++)
Index: linux-2.6/arch/x86/Kconfig
===================================================================
--- linux-2.6.orig/arch/x86/Kconfig
+++ linux-2.6/arch/x86/Kconfig
@@ -24,6 +24,7 @@ config X86
 	select HAVE_KRETPROBES
 	select HAVE_KVM if ((X86_32 && !X86_VOYAGER && !X86_VISWS && !X86_NUMAQ) || X86_64)
 	select HAVE_ARCH_KGDB if !X86_VOYAGER
+	select HAVE_BOOTMEM2 if X86_32
 
 config DEFCONFIG_LIST
 	string

-- 

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