Introduce flags for reserve_bootmem()

This patchset adds a flags variable to reserve_bootmem() and uses the
BOOTMEM_EXCLUSIVE flag in crashkernel reservation code to detect collisions
between crashkernel area and already used memory.

This patch:

Change the reserve_bootmem() function to accept a new flag BOOTMEM_EXCLUSIVE.
If that flag is set, the function returns with -EBUSY if the memory already
has been reserved in the past.  This is to avoid conflicts.

Because that code runs before SMP initialisation, there's no race condition
inside reserve_bootmem_core().

[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: <linux-arch@vger.kernel.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

43 files changed, 183 insertions, 105 deletions

diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
index e4a0bcf1d28..a872078497b 100644
--- a/arch/alpha/kernel/core_irongate.c
+++ b/arch/alpha/kernel/core_irongate.c
@@ -241,7 +241,8 @@ albacore_init_arch(void)
 				       size / 1024);
 		}
 #endif
-		reserve_bootmem_node(NODE_DATA(0), pci_mem, memtop - pci_mem);
+		reserve_bootmem_node(NODE_DATA(0), pci_mem, memtop -
+				pci_mem, BOOTMEM_DEFAULT);
 		printk("irongate_init_arch: temporarily reserving "
 			"region %08lx-%08lx for PCI\n", pci_mem, memtop - 1);
 	}
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index beff6297f78..74c34662565 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -428,7 +428,8 @@ setup_memory(void *kernel_end)
 	}
 
 	/* Reserve the bootmap memory.  */
-	reserve_bootmem(PFN_PHYS(bootmap_start), bootmap_size);
+	reserve_bootmem(PFN_PHYS(bootmap_start), bootmap_size,
+			BOOTMEM_DEFAULT);
 	printk("reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size));
 
 #ifdef CONFIG_BLK_DEV_INITRD
@@ -446,7 +447,7 @@ setup_memory(void *kernel_end)
 				       phys_to_virt(PFN_PHYS(max_low_pfn)));
 		} else {
 			reserve_bootmem(virt_to_phys((void *)initrd_start),
-					INITRD_SIZE);
+					INITRD_SIZE, BOOTMEM_DEFAULT);
 		}
 	}
 #endif /* CONFIG_BLK_DEV_INITRD */
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index e3e3806a6f2..10ab7833e83 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -242,7 +242,8 @@ setup_memory_node(int nid, void *kernel_end)
 	}
 
 	/* Reserve the bootmap memory.  */
-	reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(bootmap_start), bootmap_size);
+	reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(bootmap_start),
+			bootmap_size, BOOTMEM_DEFAULT);
 	printk(" reserving pages %ld:%ld\n", bootmap_start, bootmap_start+PFN_UP(bootmap_size));
 
 	node_set_online(nid);
@@ -281,7 +282,7 @@ setup_memory(void *kernel_end)
 			nid = kvaddr_to_nid(initrd_start);
 			reserve_bootmem_node(NODE_DATA(nid),
 					     virt_to_phys((void *)initrd_start),
-					     INITRD_SIZE);
+					     INITRD_SIZE, BOOTMEM_DEFAULT);
 		}
 	}
 #endif /* CONFIG_BLK_DEV_INITRD */
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index c0ad7c0fbae..ec00f26bffa 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -239,7 +239,7 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi)
 	 * Reserve the bootmem bitmap for this node.
 	 */
 	reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT,
-			     boot_pages << PAGE_SHIFT);
+			     boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	/*
@@ -247,7 +247,7 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi)
 	 */
 	if (node == initrd_node) {
 		reserve_bootmem_node(pgdat, phys_initrd_start,
-				     phys_initrd_size);
+				     phys_initrd_size, BOOTMEM_DEFAULT);
 		initrd_start = __phys_to_virt(phys_initrd_start);
 		initrd_end = initrd_start + phys_initrd_size;
 	}
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index e5d61ee3d4a..d41a75ed3dc 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -605,9 +605,11 @@ void __init reserve_node_zero(pg_data_t *pgdat)
 	 * Note that this can only be in node 0.
 	 */
 #ifdef CONFIG_XIP_KERNEL
-	reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start);
+	reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start,
+			BOOTMEM_DEFAULT);
 #else
-	reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext);
+	reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext,
+			BOOTMEM_DEFAULT);
 #endif
 
 	/*
@@ -615,7 +617,7 @@ void __init reserve_node_zero(pg_data_t *pgdat)
 	 * and can only be in node 0.
 	 */
 	reserve_bootmem_node(pgdat, __pa(swapper_pg_dir),
-			     PTRS_PER_PGD * sizeof(pgd_t));
+			     PTRS_PER_PGD * sizeof(pgd_t), BOOTMEM_DEFAULT);
 
 	/*
 	 * Hmm... This should go elsewhere, but we really really need to
@@ -638,8 +640,10 @@ void __init reserve_node_zero(pg_data_t *pgdat)
 	/* H1940 and RX3715 need to reserve this for suspend */
 
 	if (machine_is_h1940() || machine_is_rx3715()) {
-		reserve_bootmem_node(pgdat, 0x30003000, 0x1000);
-		reserve_bootmem_node(pgdat, 0x30081000, 0x1000);
+		reserve_bootmem_node(pgdat, 0x30003000, 0x1000,
+				BOOTMEM_DEFAULT);
+		reserve_bootmem_node(pgdat, 0x30081000, 0x1000,
+				BOOTMEM_DEFAULT);
 	}
 
 #ifdef CONFIG_SA1111
@@ -650,7 +654,8 @@ void __init reserve_node_zero(pg_data_t *pgdat)
 	res_size = __pa(swapper_pg_dir) - PHYS_OFFSET;
 #endif
 	if (res_size)
-		reserve_bootmem_node(pgdat, PHYS_OFFSET, res_size);
+		reserve_bootmem_node(pgdat, PHYS_OFFSET, res_size,
+				BOOTMEM_DEFAULT);
 }
 
 /*
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 8cd3a60954f..63c62fdea52 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -27,9 +27,11 @@ void __init reserve_node_zero(pg_data_t *pgdat)
 	 * Note that this can only be in node 0.
 	 */
 #ifdef CONFIG_XIP_KERNEL
-	reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start);
+	reserve_bootmem_node(pgdat, __pa(&__data_start), &_end - &__data_start,
+			BOOTMEM_DEFAULT);
 #else
-	reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext);
+	reserve_bootmem_node(pgdat, __pa(&_stext), &_end - &_stext,
+			BOOTMEM_DEFAULT);
 #endif
 
 	/*
@@ -37,7 +39,8 @@ void __init reserve_node_zero(pg_data_t *pgdat)
 	 * some architectures which the DRAM is the exception vector to trap,
 	 * alloc_page breaks with error, although it is not NULL, but "0."
 	 */
-	reserve_bootmem_node(pgdat, CONFIG_VECTORS_BASE, PAGE_SIZE);
+	reserve_bootmem_node(pgdat, CONFIG_VECTORS_BASE, PAGE_SIZE,
+			BOOTMEM_DEFAULT);
 }
 
 /*
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
index ee40c1a0b83..7854f19b77c 100644
--- a/arch/arm/plat-omap/fb.c
+++ b/arch/arm/plat-omap/fb.c
@@ -207,7 +207,7 @@ void __init omapfb_reserve_sdram(void)
 			return;
 		}
 		if (rg.paddr)
-			reserve_bootmem(rg.paddr, rg.size);
+			reserve_bootmem(rg.paddr, rg.size, BOOTMEM_DEFAULT);
 		reserved += rg.size;
 		omapfb_config.mem_desc.region[i] = rg;
 		configured_regions++;
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index 4b4c1884e1c..e66a07a928c 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -489,7 +489,8 @@ static void __init setup_bootmem(void)
 		/* Reserve space for the bootmem bitmap... */
 		reserve_bootmem_node(NODE_DATA(node),
 				     PFN_PHYS(bootmap_pfn),
-				     bootmap_size);
+				     bootmap_size,
+				     BOOTMEM_DEFAULT);
 
 		/* ...and any other reserved regions. */
 		for (res = reserved; res; res = res->sibling) {
@@ -505,7 +506,8 @@ static void __init setup_bootmem(void)
 			    && res->end < PFN_PHYS(max_pfn))
 				reserve_bootmem_node(
 					NODE_DATA(node), res->start,
-					res->end - res->start + 1);
+					res->end - res->start + 1,
+					BOOTMEM_DEFAULT);
 		}
 
 		node_set_online(node);
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 462cae89375..6e106b3d772 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -406,7 +406,7 @@ void __init setup_arch(char **cmdline_p)
 	 */
 	free_bootmem(memory_start, memory_end - memory_start);
 
-	reserve_bootmem(memory_start, bootmap_size);
+	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
 	/*
 	 * get kmalloc into gear
 	 */
diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
index 65466c49d7a..4da042e100a 100644
--- a/arch/cris/kernel/setup.c
+++ b/arch/cris/kernel/setup.c
@@ -137,7 +137,7 @@ setup_arch(char **cmdline_p)
 	 * Arguments are start, size
          */
 
-        reserve_bootmem(PFN_PHYS(start_pfn), bootmap_size);
+	reserve_bootmem(PFN_PHYS(start_pfn), bootmap_size, BOOTMEM_DEFAULT);
 
 	/* paging_init() sets up the MMU and marks all pages as reserved */
 
diff --git a/arch/frv/kernel/setup.c b/arch/frv/kernel/setup.c
index b38ae1fc15f..6c01464db69 100644
--- a/arch/frv/kernel/setup.c
+++ b/arch/frv/kernel/setup.c
@@ -925,13 +925,15 @@ static void __init setup_linux_memory(void)
 #endif
 
 	/* take back the memory occupied by the kernel image and the bootmem alloc map */
-	reserve_bootmem(kstart, kend - kstart + bootmap_size);
+	reserve_bootmem(kstart, kend - kstart + bootmap_size,
+			BOOTMEM_DEFAULT);
 
 	/* reserve the memory occupied by the initial ramdisk */
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (LOADER_TYPE && INITRD_START) {
 		if (INITRD_START + INITRD_SIZE <= (low_top_pfn << PAGE_SHIFT)) {
-			reserve_bootmem(INITRD_START, INITRD_SIZE);
+			reserve_bootmem(INITRD_START, INITRD_SIZE,
+					BOOTMEM_DEFAULT);
 			initrd_start = INITRD_START + PAGE_OFFSET;
 			initrd_end = initrd_start + INITRD_SIZE;
 		}
@@ -986,9 +988,10 @@ static void __init setup_uclinux_memory(void)
 
 	/* now take back the bits the core kernel is occupying */
 #ifndef CONFIG_PROTECT_KERNEL
-	reserve_bootmem(kend, bootmap_size);
+	reserve_bootmem(kend, bootmap_size, BOOTMEM_DEFAULT);
 	reserve_bootmem((unsigned long) &__kernel_image_start,
-			kend - (unsigned long) &__kernel_image_start);
+			kend - (unsigned long) &__kernel_image_start,
+			BOOTMEM_DEFAULT);
 
 #else
 	dampr = __get_DAMPR(0);
@@ -996,14 +999,15 @@ static void __init setup_uclinux_memory(void)
 	dampr = (dampr >> 4) + 17;
 	dampr = 1 << dampr;
 
-	reserve_bootmem(__get_DAMPR(0) & xAMPRx_PPFN, dampr);
+	reserve_bootmem(__get_DAMPR(0) & xAMPRx_PPFN, dampr, BOOTMEM_DEFAULT);
 #endif
 
 	/* reserve some memory to do uncached DMA through if requested */
 #ifdef CONFIG_RESERVE_DMA_COHERENT
 	if (dma_coherent_mem_start)
 		reserve_bootmem(dma_coherent_mem_start,
-				dma_coherent_mem_end - dma_coherent_mem_start);
+				dma_coherent_mem_end - dma_coherent_mem_start,
+				BOOTMEM_DEFAULT);
 #endif
 
 } /* end setup_uclinux_memory() */
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index b2e86d0255e..cd3734614d9 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -173,7 +173,7 @@ void __init setup_arch(char **cmdline_p)
 	 * the bootmem bitmap so we then reserve it after freeing it :-)
 	 */
 	free_bootmem(memory_start, memory_end - memory_start);
-	reserve_bootmem(memory_start, bootmap_size);
+	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
 	/*
 	 * get kmalloc into gear
 	 */
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 7e9c275ea14..344f64eca7a 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -218,7 +218,7 @@ find_memory (void)
 
 	/* Free all available memory, then mark bootmem-map as being in use. */
 	efi_memmap_walk(filter_rsvd_memory, free_bootmem);
-	reserve_bootmem(bootmap_start, bootmap_size);
+	reserve_bootmem(bootmap_start, bootmap_size, BOOTMEM_DEFAULT);
 
 	find_initrd();
 
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 0b567398f38..ee5e68b2af9 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -299,12 +299,12 @@ static void __init reserve_pernode_space(void)
 		pages = bdp->node_low_pfn - (bdp->node_boot_start>>PAGE_SHIFT);
 		size = bootmem_bootmap_pages(pages) << PAGE_SHIFT;
 		base = __pa(bdp->node_bootmem_map);
-		reserve_bootmem_node(pdp, base, size);
+		reserve_bootmem_node(pdp, base, size, BOOTMEM_DEFAULT);
 
 		/* Now the per-node space */
 		size = mem_data[node].pernode_size;
 		base = __pa(mem_data[node].pernode_addr);
-		reserve_bootmem_node(pdp, base, size);
+		reserve_bootmem_node(pdp, base, size, BOOTMEM_DEFAULT);
 	}
 }
 
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index d64814385d7..f1f5db0c408 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -177,25 +177,28 @@ static unsigned long __init setup_memory(void)
 	 */
 	reserve_bootmem(CONFIG_MEMORY_START + PAGE_SIZE,
 		(PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE - 1)
-		- CONFIG_MEMORY_START);
+		- CONFIG_MEMORY_START,
+		BOOTMEM_DEFAULT);
 
 	/*
 	 * reserve physical page 0 - it's a special BIOS page on many boxes,
 	 * enabling clean reboots, SMP operation, laptop functions.
 	 */
-	reserve_bootmem(CONFIG_MEMORY_START, PAGE_SIZE);
+	reserve_bootmem(CONFIG_MEMORY_START, PAGE_SIZE, BOOTMEM_DEFAULT);
 
 	/*
 	 * reserve memory hole
 	 */
 #ifdef CONFIG_MEMHOLE
-	reserve_bootmem(CONFIG_MEMHOLE_START, CONFIG_MEMHOLE_SIZE);
+	reserve_bootmem(CONFIG_MEMHOLE_START, CONFIG_MEMHOLE_SIZE,
+			BOOTMEM_DEFAULT);
 #endif
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (LOADER_TYPE && INITRD_START) {
 		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
-			reserve_bootmem(INITRD_START, INITRD_SIZE);
+			reserve_bootmem(INITRD_START, INITRD_SIZE,
+					BOOTMEM_DEFAULT);
 			initrd_start = INITRD_START + PAGE_OFFSET;
 			initrd_end = initrd_start + INITRD_SIZE;
 			printk("initrd:start[%08lx],size[%08lx]\n",
diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c
index c7efdb0aefc..07c1af7dc0e 100644
--- a/arch/m32r/mm/discontig.c
+++ b/arch/m32r/mm/discontig.c
@@ -91,7 +91,8 @@ unsigned long __init setup_memory(void)
 			PFN_PHYS(mp->pages));
 
 		reserve_bootmem_node(NODE_DATA(nid), PFN_PHYS(mp->start_pfn),
-			PFN_PHYS(mp->free_pfn - mp->start_pfn) + bootmap_size);
+			PFN_PHYS(mp->free_pfn - mp->start_pfn) + bootmap_size,
+			BOOTMEM_DEFAULT);
 
 		if (max_low_pfn < max_pfn)
 			max_low_pfn = max_pfn;
@@ -104,7 +105,7 @@ unsigned long __init setup_memory(void)
 	if (LOADER_TYPE && INITRD_START) {
 		if (INITRD_START + INITRD_SIZE <= PFN_PHYS(max_low_pfn)) {
 			reserve_bootmem_node(NODE_DATA(0), INITRD_START,
-				INITRD_SIZE);
+				INITRD_SIZE, BOOTMEM_DEFAULT);
 			initrd_start = INITRD_START + PAGE_OFFSET;
 			initrd_end = initrd_start + INITRD_SIZE;
 			printk("initrd:start[%08lx],size[%08lx]\n",
diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c
index 8dda6515887..0055a6c06f7 100644
--- a/arch/m68k/atari/stram.c
+++ b/arch/m68k/atari/stram.c
@@ -154,7 +154,7 @@ void __init atari_stram_reserve_pages(void *start_mem)
 	/* always reserve first page of ST-RAM, the first 2 kB are
 	 * supervisor-only! */
 	if (!kernel_in_stram)
-		reserve_bootmem (0, PAGE_SIZE);
+		reserve_bootmem(0, PAGE_SIZE, BOOTMEM_DEFAULT);
 
 }
 
diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c
index ed3a4caec62..9a06c48edcb 100644
--- a/arch/m68k/kernel/setup.c
+++ b/arch/m68k/kernel/setup.c
@@ -323,7 +323,8 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (m68k_ramdisk.size) {
 		reserve_bootmem_node(__virt_to_node(phys_to_virt(m68k_ramdisk.addr)),
-				     m68k_ramdisk.addr, m68k_ramdisk.size);
+				     m68k_ramdisk.addr, m68k_ramdisk.size,
+				     BOOTMEM_DEFAULT);
 		initrd_start = (unsigned long)phys_to_virt(m68k_ramdisk.addr);
 		initrd_end = initrd_start + m68k_ramdisk.size;
 		printk("initrd: %08lx - %08lx\n", initrd_start, initrd_end);
diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c
index 81507c53d4a..156c6c662c7 100644
--- a/arch/m68knommu/kernel/setup.c
+++ b/arch/m68knommu/kernel/setup.c
@@ -203,7 +203,7 @@ void __init setup_arch(char **cmdline_p)
 	 * the bootmem bitmap so we then reserve it after freeing it :-)
 	 */
 	free_bootmem(memory_start, memory_end - memory_start);
-	reserve_bootmem(memory_start, bootmap_size);
+	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
 
 	/*
 	 * Get kmalloc into gear.
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c032409cba9..39f3dfe134f 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -232,7 +232,7 @@ static void __init finalize_initrd(void)
 		goto disable;
 	}
 
-	reserve_bootmem(__pa(initrd_start), size);
+	reserve_bootmem(__pa(initrd_start), size, BOOTMEM_DEFAULT);
 	initrd_below_start_ok = 1;
 
 	printk(KERN_INFO "Initial ramdisk at: 0x%lx (%lu bytes)\n",
@@ -413,7 +413,7 @@ static void __init bootmem_init(void)
 	/*
 	 * Reserve the bootmap memory.
 	 */
-	reserve_bootmem(PFN_PHYS(mapstart), bootmap_size);
+	reserve_bootmem(PFN_PHYS(mapstart), bootmap_size, BOOTMEM_DEFAULT);
 
 	/*
 	 * Reserve initrd memory if needed.
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index e5e023f50a0..bf438d02366 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -465,7 +465,8 @@ static void __init node_mem_init(cnodeid_t node)
 	free_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT,
 			(slot_lastpfn - slot_firstpfn) << PAGE_SHIFT);
 	reserve_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT,
-		((slot_freepfn - slot_firstpfn) << PAGE_SHIFT) + bootmap_size);
+		((slot_freepfn - slot_firstpfn) << PAGE_SHIFT) + bootmap_size,
+		BOOTMEM_DEFAULT);
 }
 
 /*
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index aa875fa4348..eb80f5e33d7 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -315,11 +315,13 @@ static void __init setup_bootmem(void)
 #define PDC_CONSOLE_IO_IODC_SIZE 32768
 
 	reserve_bootmem_node(NODE_DATA(0), 0UL,
-			(unsigned long)(PAGE0->mem_free + PDC_CONSOLE_IO_IODC_SIZE));
+			(unsigned long)(PAGE0->mem_free +
+				PDC_CONSOLE_IO_IODC_SIZE), BOOTMEM_DEFAULT);
 	reserve_bootmem_node(NODE_DATA(0), __pa((unsigned long)_text),
-			(unsigned long)(_end - _text));
+			(unsigned long)(_end - _text), BOOTMEM_DEFAULT);
 	reserve_bootmem_node(NODE_DATA(0), (bootmap_start_pfn << PAGE_SHIFT),
-			((bootmap_pfn - bootmap_start_pfn) << PAGE_SHIFT));
+			((bootmap_pfn - bootmap_start_pfn) << PAGE_SHIFT),
+			BOOTMEM_DEFAULT);
 
 #ifndef CONFIG_DISCONTIGMEM
 
@@ -328,7 +330,8 @@ static void __init setup_bootmem(void)
 	for (i = 0; i < npmem_holes; i++) {
 		reserve_bootmem_node(NODE_DATA(0),
 				(pmem_holes[i].start_pfn << PAGE_SHIFT),
-				(pmem_holes[i].pages << PAGE_SHIFT));
+				(pmem_holes[i].pages << PAGE_SHIFT),
+				BOOTMEM_DEFAULT);
 	}
 #endif
 
@@ -346,7 +349,8 @@ static void __init setup_bootmem(void)
 			initrd_below_start_ok = 1;
 			printk(KERN_INFO "initrd: reserving %08lx-%08lx (mem_max %08lx)\n", __pa(initrd_start), __pa(initrd_start) + initrd_reserve, mem_max);
 
-			reserve_bootmem_node(NODE_DATA(0),__pa(initrd_start), initrd_reserve);
+			reserve_bootmem_node(NODE_DATA(0), __pa(initrd_start),
+					initrd_reserve, BOOTMEM_DEFAULT);
 		}
 	}
 #endif
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index e8122447f01..ff5debf5eed 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -220,12 +220,13 @@ void __init do_init_bootmem(void)
 				     lmb_size_bytes(&lmb.reserved, i) - 1;
 		if (addr < total_lowmem)
 			reserve_bootmem(lmb.reserved.region[i].base,
-					lmb_size_bytes(&lmb.reserved, i));
+					lmb_size_bytes(&lmb.reserved, i),
+					BOOTMEM_DEFAULT);
 		else if (lmb.reserved.region[i].base < total_lowmem) {
 			unsigned long adjusted_size = total_lowmem -
 				      lmb.reserved.region[i].base;
 			reserve_bootmem(lmb.reserved.region[i].base,
-					adjusted_size);
+					adjusted_size, BOOTMEM_DEFAULT);
 		}
 	}
 #else
@@ -234,7 +235,8 @@ void __init do_init_bootmem(void)
 	/* reserve the sections we're already using */
 	for (i = 0; i < lmb.reserved.cnt; i++)
 		reserve_bootmem(lmb.reserved.region[i].base,
-				lmb_size_bytes(&lmb.reserved, i));
+				lmb_size_bytes(&lmb.reserved, i),
+				BOOTMEM_DEFAULT);
 
 #endif
 	/* XXX need to clip this if using highmem? */
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index c12adc3ddff..bc60322d243 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -675,7 +675,7 @@ void __init do_init_bootmem(void)
 				dbg("reserve_bootmem %lx %lx\n", physbase,
 				    size);
 				reserve_bootmem_node(NODE_DATA(nid), physbase,
-						     size);
+						     size, BOOTMEM_DEFAULT);
 			}
 		}
 
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 29ae165d174..f9f8779022a 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -649,21 +649,24 @@ setup_memory(void)
 	/*
 	 * Reserve memory used for lowcore/command line/kernel image.
 	 */
-	reserve_bootmem(0, (unsigned long)_ehead);
+	reserve_bootmem(0, (unsigned long)_ehead, BOOTMEM_DEFAULT);
 	reserve_bootmem((unsigned long)_stext,
-			PFN_PHYS(start_pfn) - (unsigned long)_stext);
+			PFN_PHYS(start_pfn) - (unsigned long)_stext,
+			BOOTMEM_DEFAULT);
 	/*
 	 * Reserve the bootmem bitmap itself as well. We do this in two
 	 * steps (first step was init_bootmem()) because this catches
 	 * the (very unlikely) case of us accidentally initializing the
 	 * bootmem allocator with an invalid RAM area.
 	 */
-	reserve_bootmem(start_pfn << PAGE_SHIFT, bootmap_size);
+	reserve_bootmem(start_pfn << PAGE_SHIFT, bootmap_size,
+			BOOTMEM_DEFAULT);
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (INITRD_START && INITRD_SIZE) {
 		if (INITRD_START + INITRD_SIZE <= memory_end) {
-			reserve_bootmem(INITRD_START, INITRD_SIZE);
+			reserve_bootmem(INITRD_START, INITRD_SIZE,
+					BOOTMEM_DEFAULT);
 			initrd_start = INITRD_START;
 			initrd_end = initrd_start + INITRD_SIZE;
 		} else {
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 855cdf9d85b..af10db90a55 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -148,7 +148,8 @@ static void __init reserve_crashkernel(void)
 					(unsigned long)(free_mem >> 20));
 			crashk_res.start = crash_base;
 			crashk_res.end   = crash_base + crash_size - 1;
-			reserve_bootmem(crash_base, crash_size);
+			reserve_bootmem(crash_base, crash_size,
+					BOOTMEM_DEFAULT);
 		} else
 			printk(KERN_INFO "crashkernel reservation failed - "
 					"you have to specify a base address\n");
@@ -184,13 +185,14 @@ void __init setup_bootmem_allocator(unsigned long free_pfn)
 	 * an invalid RAM area.
 	 */
 	reserve_bootmem(__MEMORY_START+PAGE_SIZE,
-		(PFN_PHYS(free_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
+		(PFN_PHYS(free_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START,
+		BOOTMEM_DEFAULT);
 
 	/*
 	 * reserve physical page 0 - it's a special BIOS page on many boxes,
 	 * enabling clean reboots, SMP operation, laptop functions.
 	 */
-	reserve_bootmem(__MEMORY_START, PAGE_SIZE);
+	reserve_bootmem(__MEMORY_START, PAGE_SIZE, BOOTMEM_DEFAULT);
 
 	sparse_memory_present_with_active_regions(0);
 
@@ -200,7 +202,7 @@ void __init setup_bootmem_allocator(unsigned long free_pfn)
 	if (LOADER_TYPE && INITRD_START) {
 		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
 			reserve_bootmem(INITRD_START + __MEMORY_START,
-					INITRD_SIZE);
+					INITRD_SIZE, BOOTMEM_DEFAULT);
 			initrd_start = INITRD_START + PAGE_OFFSET +
 					__MEMORY_START;
 			initrd_end = initrd_start + INITRD_SIZE;
diff --git a/arch/sh/mm/numa.c b/arch/sh/mm/numa.c
index 8aff065dd30..2de7302724f 100644
--- a/arch/sh/mm/numa.c
+++ b/arch/sh/mm/numa.c
@@ -80,9 +80,9 @@ void __init setup_bootmem_node(in