memblock: replace free_bootmem{_node} with memblock_free

The free_bootmem and free_bootmem_node are merely wrappers for
memblock_free. Replace their usage with a call to memblock_free using the
following semantic patch:

@@
expression e1, e2, e3;
@@
(
- free_bootmem(e1, e2)
+ memblock_free(e1, e2)
|
- free_bootmem_node(e1, e2, e3)
+ memblock_free(e2, e3)
)

Link: http://lkml.kernel.org/r/1536927045-23536-24-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Serge Semin <fancer.lancer@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/alpha/kernel/core_irongate.c

@@ -234,8 +234,7 @@ albacore_init_arch(void)
 			unsigned long size;
 
 			size = initrd_end - initrd_start;
-			free_bootmem_node(NODE_DATA(0), __pa(initrd_start),
-					  PAGE_ALIGN(size));
+			memblock_free(__pa(initrd_start), PAGE_ALIGN(size));
 			if (!move_initrd(pci_mem))
 				printk("irongate_init_arch: initrd too big "
 				       "(%ldK)\ndisabling initrd\n",

arch/arm64/mm/init.c

@@ -536,7 +536,7 @@ static inline void free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 	 * memmap array.
 	 */
 	if (pg < pgend)
-		free_bootmem(pg, pgend - pg);
+		memblock_free(pg, pgend - pg);
 }
 
 /*

arch/mips/kernel/setup.c

@@ -561,7 +561,7 @@ static void __init bootmem_init(void)
 		extern void show_kernel_relocation(const char *level);
 
 		offset = __pa_symbol(_text) - __pa_symbol(VMLINUX_LOAD_ADDRESS);
-		free_bootmem(__pa_symbol(VMLINUX_LOAD_ADDRESS), offset);
+		memblock_free(__pa_symbol(VMLINUX_LOAD_ADDRESS), offset);
 
 #if defined(CONFIG_DEBUG_KERNEL) && defined(CONFIG_DEBUG_INFO)
 		/*

arch/powerpc/kernel/setup_64.c

@@ -771,7 +771,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	free_bootmem(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 static int pcpu_cpu_distance(unsigned int from, unsigned int to)

arch/sparc/kernel/smp_64.c

@@ -1607,7 +1607,7 @@ static void * __init pcpu_alloc_bootmem(unsigned int cpu, size_t size,
 
 static void __init pcpu_free_bootmem(void *ptr, size_t size)
 {
-	free_bootmem(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)

arch/um/kernel/mem.c

@@ -6,6 +6,7 @@
 #include <linux/stddef.h>
 #include <linux/module.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
 #include <linux/swap.h>
@@ -46,7 +47,7 @@ void __init mem_init(void)
 	 */
 	brk_end = (unsigned long) UML_ROUND_UP(sbrk(0));
 	map_memory(brk_end, __pa(brk_end), uml_reserved - brk_end, 1, 1, 0);
-	free_bootmem(__pa(brk_end), uml_reserved - brk_end);
+	memblock_free(__pa(brk_end), uml_reserved - brk_end);
 	uml_reserved = brk_end;
 
 	/* this will put all low memory onto the freelists */

arch/unicore32/mm/init.c

@@ -238,7 +238,7 @@ free_memmap(unsigned long start_pfn, unsigned long end_pfn)
 	 * free the section of the memmap array.
 	 */
 	if (pg < pgend)
-		free_bootmem(pg, pgend - pg);
+		memblock_free(pg, pgend - pg);
 }
 
 /*

arch/x86/kernel/setup_percpu.c

@@ -5,6 +5,7 @@
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/percpu.h>
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
@@ -135,7 +136,7 @@ static void * __init pcpu_fc_alloc(unsigned int cpu, size_t size, size_t align)
 
 static void __init pcpu_fc_free(void *ptr, size_t size)
 {
-	free_bootmem(__pa(ptr), size);
+	memblock_free(__pa(ptr), size);
 }
 
 static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)

arch/x86/kernel/tce_64.c

@@ -31,6 +31,7 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <asm/tce.h>
 #include <asm/calgary.h>
 #include <asm/proto.h>
@@ -186,5 +187,5 @@ void __init free_tce_table(void *tbl)
 	size = table_size_to_number_of_entries(specified_table_size);
 	size *= TCE_ENTRY_SIZE;
 
-	free_bootmem(__pa(tbl), size);
+	memblock_free(__pa(tbl), size);
 }

arch/x86/xen/p2m.c

@@ -68,6 +68,7 @@
 #include <linux/sched.h>
 #include <linux/seq_file.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 
@@ -190,7 +191,7 @@ static void * __ref alloc_p2m_page(void)
 static void __ref free_p2m_page(void *p)
 {
 	if (unlikely(!slab_is_available())) {
-		free_bootmem((unsigned long)p, PAGE_SIZE);
+		memblock_free((unsigned long)p, PAGE_SIZE);
 		return;
 	}
 

drivers/macintosh/smu.c

@@ -569,7 +569,7 @@ int __init smu_init (void)
 fail_db_node:
 	of_node_put(smu->db_node);
 fail_bootmem:
-	free_bootmem(__pa(smu), sizeof(struct smu_device));
+	memblock_free(__pa(smu), sizeof(struct smu_device));
 	smu = NULL;
 fail_np:
 	of_node_put(np);

drivers/usb/early/xhci-dbc.c

@@ -13,6 +13,7 @@
 #include <linux/pci_regs.h>
 #include <linux/pci_ids.h>
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/io.h>
 #include <asm/pci-direct.h>
 #include <asm/fixmap.h>
@@ -191,7 +192,7 @@ static void __init xdbc_free_ring(struct xdbc_ring *ring)
 	if (!seg)
 		return;
 
-	free_bootmem(seg->dma, PAGE_SIZE);
+	memblock_free(seg->dma, PAGE_SIZE);
 	ring->segment = NULL;
 }
 
@@ -675,10 +676,10 @@ int __init early_xdbc_setup_hardware(void)
 		xdbc_free_ring(&xdbc.in_ring);
 
 		if (xdbc.table_dma)
-			free_bootmem(xdbc.table_dma, PAGE_SIZE);
+			memblock_free(xdbc.table_dma, PAGE_SIZE);
 
 		if (xdbc.out_dma)
-			free_bootmem(xdbc.out_dma, PAGE_SIZE);
+			memblock_free(xdbc.out_dma, PAGE_SIZE);
 
 		xdbc.table_base = NULL;
 		xdbc.out_buf = NULL;
@@ -997,8 +998,8 @@ static int __init xdbc_init(void)
 	xdbc_free_ring(&xdbc.evt_ring);
 	xdbc_free_ring(&xdbc.out_ring);
 	xdbc_free_ring(&xdbc.in_ring);
-	free_bootmem(xdbc.table_dma, PAGE_SIZE);
-	free_bootmem(xdbc.out_dma, PAGE_SIZE);
+	memblock_free(xdbc.table_dma, PAGE_SIZE);
+	memblock_free(xdbc.out_dma, PAGE_SIZE);
 	writel(0, &xdbc.xdbc_reg->control);
 	early_iounmap(xdbc.xhci_base, xdbc.xhci_length);
 

drivers/xen/swiotlb-xen.c

@@ -36,6 +36,7 @@
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
 #include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/dma-direct.h>
 #include <linux/export.h>
 #include <xen/swiotlb-xen.h>
@@ -248,7 +249,8 @@ int __ref xen_swiotlb_init(int verbose, bool early)
 			       xen_io_tlb_nslabs);
 	if (rc) {
 		if (early)
-			free_bootmem(__pa(xen_io_tlb_start), PAGE_ALIGN(bytes));
+			memblock_free(__pa(xen_io_tlb_start),
+				      PAGE_ALIGN(bytes));
 		else {
 			free_pages((unsigned long)xen_io_tlb_start, order);
 			xen_io_tlb_start = NULL;

include/linux/bootmem.h

@@ -30,10 +30,6 @@ extern unsigned long free_all_bootmem(void);
 extern void reset_node_managed_pages(pg_data_t *pgdat);
 extern void reset_all_zones_managed_pages(void);
 
-extern void free_bootmem_node(pg_data_t *pgdat,
-			      unsigned long addr,
-			      unsigned long size);
-extern void free_bootmem(unsigned long physaddr, unsigned long size);
 extern void free_bootmem_late(unsigned long physaddr, unsigned long size);
 
 /* We are using top down, so it is safe to use 0 here */

mm/nobootmem.c

@@ -150,33 +150,3 @@ unsigned long __init free_all_bootmem(void)
 
 	return pages;
 }
-
-/**
- * free_bootmem_node - mark a page range as usable
- * @pgdat: node the range resides on
- * @physaddr: starting physical address of the range
- * @size: size of the range in bytes
- *
- * Partial pages will be considered reserved and left as they are.
- *
- * The range must reside completely on the specified node.
- */
-void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
-			      unsigned long size)
-{
-	memblock_free(physaddr, size);
-}
-
-/**
- * free_bootmem - mark a page range as usable
- * @addr: starting physical address of the range
- * @size: size of the range in bytes
- *
- * Partial pages will be considered reserved and left as they are.
- *
- * The range must be contiguous but may span node boundaries.
- */
-void __init free_bootmem(unsigned long addr, unsigned long size)
-{
-	memblock_free(addr, size);
-}