memblock: replace alloc_bootmem with memblock_alloc

The alloc_bootmem(size) is a shortcut for allocation of SMP_CACHE_BYTES
aligned memory. When the align parameter of memblock_alloc() is 0, the
alignment is implicitly set to SMP_CACHE_BYTES and thus alloc_bootmem(size)
and memblock_alloc(size, 0) are equivalent.

The conversion is done using the following semantic patch:

@@
expression size;
@@
- alloc_bootmem(size)
+ memblock_alloc(size, 0)

Link: http://lkml.kernel.org/r/1536927045-23536-22-git-send-email-rppt@linux.vnet.ibm.comSigned-off-by: Mike Rapoport <rppt@linux.vnet.ibm.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 Hocko <mhocko@suse.com>
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_marvel.c

@@ -82,7 +82,7 @@ mk_resource_name(int pe, int port, char *str)
 	char *name;
 	
 	sprintf(tmp, "PCI %s PE %d PORT %d", str, pe, port);
-	name = alloc_bootmem(strlen(tmp) + 1);
+	name = memblock_alloc(strlen(tmp) + 1, 0);
 	strcpy(name, tmp);
 
 	return name;
@@ -117,7 +117,7 @@ alloc_io7(unsigned int pe)
 		return NULL;
 	}
 
-	io7 = alloc_bootmem(sizeof(*io7));
+	io7 = memblock_alloc(sizeof(*io7), 0);
 	io7->pe = pe;
 	raw_spin_lock_init(&io7->irq_lock);
 

arch/alpha/kernel/pci-noop.c

@@ -33,7 +33,7 @@ alloc_pci_controller(void)
 {
 	struct pci_controller *hose;
 
-	hose = alloc_bootmem(sizeof(*hose));
+	hose = memblock_alloc(sizeof(*hose), 0);
 
 	*hose_tail = hose;
 	hose_tail = &hose->next;
@@ -44,7 +44,7 @@ alloc_pci_controller(void)
 struct resource * __init
 alloc_resource(void)
 {
-	return alloc_bootmem(sizeof(struct resource));
+	return memblock_alloc(sizeof(struct resource), 0);
 }
 
 SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,

arch/alpha/kernel/pci.c

@@ -392,7 +392,7 @@ alloc_pci_controller(void)
 {
 	struct pci_controller *hose;
 
-	hose = alloc_bootmem(sizeof(*hose));
+	hose = memblock_alloc(sizeof(*hose), 0);
 
 	*hose_tail = hose;
 	hose_tail = &hose->next;
@@ -403,7 +403,7 @@ alloc_pci_controller(void)
 struct resource * __init
 alloc_resource(void)
 {
-	return alloc_bootmem(sizeof(struct resource));
+	return memblock_alloc(sizeof(struct resource), 0);
 }
 
 

arch/alpha/kernel/pci_iommu.c

@@ -79,7 +79,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 		printk("%s: couldn't allocate arena from node %d\n"
 		       "    falling back to system-wide allocation\n",
 		       __func__, nid);
-		arena = alloc_bootmem(sizeof(*arena));
+		arena = memblock_alloc(sizeof(*arena), 0);
 	}
 
 	arena->ptes = memblock_alloc_node(sizeof(*arena), align, nid);
@@ -92,7 +92,7 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base,
 
 #else /* CONFIG_DISCONTIGMEM */
 
-	arena = alloc_bootmem(sizeof(*arena));
+	arena = memblock_alloc(sizeof(*arena), 0);
 	arena->ptes = memblock_alloc_from(mem_size, align, 0);
 
 #endif /* CONFIG_DISCONTIGMEM */

arch/ia64/kernel/mca.c

@@ -361,9 +361,9 @@ static ia64_state_log_t ia64_state_log[IA64_MAX_LOG_TYPES];
 
 #define IA64_LOG_ALLOCATE(it, size) \
 	{ia64_state_log[it].isl_log[IA64_LOG_CURR_INDEX(it)] = \
-		(ia64_err_rec_t *)alloc_bootmem(size); \
+		(ia64_err_rec_t *)memblock_alloc(size, 0); \
 	ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] = \
-		(ia64_err_rec_t *)alloc_bootmem(size);}
+		(ia64_err_rec_t *)memblock_alloc(size, 0);}
 #define IA64_LOG_LOCK_INIT(it) spin_lock_init(&ia64_state_log[it].isl_lock)
 #define IA64_LOG_LOCK(it)      spin_lock_irqsave(&ia64_state_log[it].isl_lock, s)
 #define IA64_LOG_UNLOCK(it)    spin_unlock_irqrestore(&ia64_state_log[it].isl_lock,s)

arch/ia64/mm/tlb.c

@@ -59,8 +59,8 @@ struct ia64_tr_entry *ia64_idtrs[NR_CPUS];
 void __init
 mmu_context_init (void)
 {
-	ia64_ctx.bitmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
-	ia64_ctx.flushmap = alloc_bootmem((ia64_ctx.max_ctx+1)>>3);
+	ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
+	ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
 }
 
 /*

arch/m68k/sun3/sun3dvma.c

@@ -267,7 +267,8 @@ void __init dvma_init(void)
 
 	list_add(&(hole->list), &hole_list);
 
-	iommu_use = alloc_bootmem(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long));
+	iommu_use = memblock_alloc(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long),
+				   0);
 
 	dvma_unmap_iommu(DVMA_START, DVMA_SIZE);
 

arch/microblaze/mm/init.c

@@ -377,7 +377,7 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
 	if (mem_init_done)
 		p = kzalloc(size, mask);
 	else {
-		p = alloc_bootmem(size);
+		p = memblock_alloc(size, 0);
 		if (p)
 			memset(p, 0, size);
 	}

arch/mips/kernel/setup.c

@@ -917,7 +917,7 @@ static void __init resource_init(void)
 		if (end >= HIGHMEM_START)
 			end = HIGHMEM_START - 1;
 
-		res = alloc_bootmem(sizeof(struct resource));
+		res = memblock_alloc(sizeof(struct resource), 0);
 
 		res->start = start;
 		res->end = end;

arch/um/drivers/net_kern.c

@@ -650,7 +650,7 @@ static int __init eth_setup(char *str)
 		return 1;
 	}
 
-	new = alloc_bootmem(sizeof(*new));
+	new = memblock_alloc(sizeof(*new), 0);
 
 	INIT_LIST_HEAD(&new->list);
 	new->index = n;

arch/um/drivers/vector_kern.c

@@ -1580,7 +1580,7 @@ static int __init vector_setup(char *str)
 				 str, error);
 		return 1;
 	}
-	new = alloc_bootmem(sizeof(*new));
+	new = memblock_alloc(sizeof(*new), 0);
 	INIT_LIST_HEAD(&new->list);
 	new->unit = n;
 	new->arguments = str;

arch/um/kernel/initrd.c

@@ -36,7 +36,7 @@ int __init read_initrd(void)
 		return 0;
 	}
 
-	area = alloc_bootmem(size);
+	area = memblock_alloc(size, 0);
 
 	if (load_initrd(initrd, area, size) == -1)
 		return 0;

arch/x86/kernel/acpi/boot.c

@@ -933,7 +933,8 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
 	 * the resource tree during the lateinit timeframe.
 	 */
 #define HPET_RESOURCE_NAME_SIZE 9
-	hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
+	hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE,
+				  0);
 
 	hpet_res->name = (void *)&hpet_res[1];
 	hpet_res->flags = IORESOURCE_MEM;

arch/x86/kernel/apic/io_apic.c

@@ -2578,7 +2578,7 @@ static struct resource * __init ioapic_setup_resources(void)
 	n = IOAPIC_RESOURCE_NAME_SIZE + sizeof(struct resource);
 	n *= nr_ioapics;
 
-	mem = alloc_bootmem(n);
+	mem = memblock_alloc(n, 0);
 	res = (void *)mem;
 
 	mem += sizeof(struct resource) * nr_ioapics;

arch/x86/kernel/e820.c

@@ -1094,7 +1094,7 @@ void __init e820__reserve_resources(void)
 	struct resource *res;
 	u64 end;
 
-	res = alloc_bootmem(sizeof(*res) * e820_table->nr_entries);
+	res = memblock_alloc(sizeof(*res) * e820_table->nr_entries, 0);
 	e820_res = res;
 
 	for (i = 0; i < e820_table->nr_entries; i++) {

arch/x86/platform/olpc/olpc_dt.c

@@ -141,7 +141,7 @@ void * __init prom_early_alloc(unsigned long size)
 		 * fast enough on the platforms we care about while minimizing
 		 * wasted bootmem) and hand off chunks of it to callers.
 		 */
-		res = alloc_bootmem(chunk_size);
+		res = memblock_alloc(chunk_size, 0);
 		BUG_ON(!res);
 		prom_early_allocated += chunk_size;
 		memset(res, 0, chunk_size);

arch/xtensa/platforms/iss/network.c

@@ -646,7 +646,7 @@ static int __init iss_net_setup(char *str)
 		return 1;
 	}
 
-	new = alloc_bootmem(sizeof(*new));
+	new = memblock_alloc(sizeof(*new), 0);
 	if (new == NULL) {
 		pr_err("Alloc_bootmem failed\n");
 		return 1;

drivers/macintosh/smu.c

@@ -493,7 +493,7 @@ int __init smu_init (void)
 		goto fail_np;
 	}
 
-	smu = alloc_bootmem(sizeof(struct smu_device));
+	smu = memblock_alloc(sizeof(struct smu_device), 0);
 
 	spin_lock_init(&smu->lock);
 	INIT_LIST_HEAD(&smu->cmd_list);

init/main.c

@@ -773,8 +773,8 @@ static int __init initcall_blacklist(char *str)
 		str_entry = strsep(&str, ",");
 		if (str_entry) {
 			pr_debug("blacklisting initcall %s\n", str_entry);
-			entry = alloc_bootmem(sizeof(*entry));
-			entry->buf = alloc_bootmem(strlen(str_entry) + 1);
+			entry = memblock_alloc(sizeof(*entry), 0);
+			entry->buf = memblock_alloc(strlen(str_entry) + 1, 0);
 			strcpy(entry->buf, str_entry);
 			list_add(&entry->next, &blacklisted_initcalls);
 		}