[PATCH] memblock: stop using implicit alignement to SMP_CACHE_BYTES

Mike Rapoport
2018-10-04T21:07:04Z

When a memblock allocation APIs are called with align = 0, the alignment is
implicitly set to SMP_CACHE_BYTES.

Replace all such uses of memblock APIs with the 'align' parameter explicitly
set to SMP_CACHE_BYTES and stop implicit alignment assignment in the
memblock internal allocation functions.

For the case when memblock APIs are used via helper functions, e.g. like
iommu_arena_new_node() in Alpha, the helper functions were detected with
Coccinelle's help and then manually examined and updated where appropriate.

The direct memblock APIs users were updated using the semantic patch below:

@@
expression size, min_addr, max_addr, nid;
@@
(
|
- memblock_alloc_try_nid_raw(size, 0, min_addr, max_addr, nid)
+ memblock_alloc_try_nid_raw(size, SMP_CACHE_BYTES, min_addr, max_addr,
nid)
|
- memblock_alloc_try_nid_nopanic(size, 0, min_addr, max_addr, nid)
+ memblock_alloc_try_nid_nopanic(size, SMP_CACHE_BYTES, min_addr, max_addr,
nid)
|
- memblock_alloc_try_nid(size, 0, min_addr, max_addr, nid)
+ memblock_alloc_try_nid(size, SMP_CACHE_BYTES, min_addr, max_addr, nid)
|
- memblock_alloc(size, 0)
+ memblock_alloc(size, SMP_CACHE_BYTES)
|
- memblock_alloc_raw(size, 0)
+ memblock_alloc_raw(size, SMP_CACHE_BYTES)
|
- memblock_alloc_from(size, 0, min_addr)
+ memblock_alloc_from(size, SMP_CACHE_BYTES, min_addr)
|
- memblock_alloc_nopanic(size, 0)
+ memblock_alloc_nopanic(size, SMP_CACHE_BYTES)
|
- memblock_alloc_low(size, 0)
+ memblock_alloc_low(size, SMP_CACHE_BYTES)
|
- memblock_alloc_low_nopanic(size, 0)
+ memblock_alloc_low_nopanic(size, SMP_CACHE_BYTES)
|
- memblock_alloc_from_nopanic(size, 0, min_addr)
+ memblock_alloc_from_nopanic(size, SMP_CACHE_BYTES, min_addr)
|
- memblock_alloc_node(size, 0, nid)
+ memblock_alloc_node(size, SMP_CACHE_BYTES, nid)
)

Suggested-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
---
arch/alpha/kernel/core_apecs.c | 3 ++-
arch/alpha/kernel/core_lca.c | 3 ++-
arch/alpha/kernel/core_marvel.c | 4 ++--
arch/alpha/kernel/core_mcpcia.c | 6 +++--
arch/alpha/kernel/core_t2.c | 2 +-
arch/alpha/kernel/core_titan.c | 6 +++--
arch/alpha/kernel/core_tsunami.c | 6 +++--
arch/alpha/kernel/core_wildfire.c | 6 +++--
arch/alpha/kernel/pci-noop.c | 4 ++--
arch/alpha/kernel/pci.c | 4 ++--
arch/alpha/kernel/pci_iommu.c | 4 ++--
arch/arm/kernel/setup.c | 4 ++--
arch/arm/mach-omap2/omap_hwmod.c | 8 ++++---
arch/arm64/kernel/setup.c | 2 +-
arch/ia64/kernel/mca.c | 4 ++--
arch/ia64/mm/tlb.c | 6 +++--
arch/ia64/sn/kernel/io_common.c | 4 +++-
arch/ia64/sn/kernel/setup.c | 5 ++--
arch/m68k/sun3/sun3dvma.c | 2 +-
arch/microblaze/mm/init.c | 2 +-
arch/mips/kernel/setup.c | 2 +-
arch/powerpc/kernel/pci_32.c | 3 ++-
arch/powerpc/lib/alloc.c | 2 +-
arch/powerpc/mm/mmu_context_nohash.c | 7 +++---
arch/powerpc/platforms/powermac/nvram.c | 2 +-
arch/powerpc/platforms/powernv/pci-ioda.c | 6 ++---
arch/powerpc/sysdev/msi_bitmap.c | 2 +-
arch/um/drivers/net_kern.c | 2 +-
arch/um/drivers/vector_kern.c | 2 +-
arch/um/kernel/initrd.c | 2 +-
arch/unicore32/kernel/setup.c | 2 +-
arch/x86/kernel/acpi/boot.c | 2 +-
arch/x86/kernel/apic/io_apic.c | 2 +-
arch/x86/kernel/e820.c | 3 ++-
arch/x86/platform/olpc/olpc_dt.c | 2 +-
arch/xtensa/platforms/iss/network.c | 2 +-
drivers/clk/ti/clk.c | 2 +-
drivers/firmware/memmap.c | 3 ++-
drivers/macintosh/smu.c | 2 +-
drivers/of/of_reserved_mem.c | 1 +
include/linux/memblock.h | 3 ++-
init/main.c | 13 +++++++----
kernel/power/snapshot.c | 3 ++-
lib/cpumask.c | 2 +-
mm/memblock.c | 8 -------
mm/page_alloc.c | 6 +++--
mm/percpu.c | 39 ++++++++++++++++---------------
mm/sparse.c | 3 ++-
48 files changed, 118 insertions(+), 95 deletions(-)

diff --git a/arch/alpha/kernel/core_apecs.c b/arch/alpha/kernel/core_apecs.c
index 1bf3eef..6df765f 100644
--- a/arch/alpha/kernel/core_apecs.c
+++ b/arch/alpha/kernel/core_apecs.c
@@ -346,7 +346,8 @@ apecs_init_arch(void)
* Window 1 is direct access 1GB at 1GB
* Window 2 is scatter-gather 8MB at 8MB (for isa)
*/
- hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+ hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+ SMP_CACHE_BYTES);
hose->sg_pci = NULL;
__direct_map_base = 0x40000000;
__direct_map_size = 0x40000000;
diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c
index 81c0c43..57e0750 100644
--- a/arch/alpha/kernel/core_lca.c
+++ b/arch/alpha/kernel/core_lca.c
@@ -275,7 +275,8 @@ lca_init_arch(void)
* Note that we do not try to save any of the DMA window CSRs
* before setting them, since we cannot read those CSRs on LCA.
*/
- hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+ hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+ SMP_CACHE_BYTES);
hose->sg_pci = NULL;
__direct_map_base = 0x40000000;
__direct_map_size = 0x40000000;
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index 8a568c4..c1d0c18 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/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 = memblock_alloc(strlen(tmp) + 1, 0);
+ name = memblock_alloc(strlen(tmp) + 1, SMP_CACHE_BYTES);
strcpy(name, tmp);

return name;
@@ -117,7 +117,7 @@ alloc_io7(unsigned int pe)
return NULL;
}

- io7 = memblock_alloc(sizeof(*io7), 0);
+ io7 = memblock_alloc(sizeof(*io7), SMP_CACHE_BYTES);
io7->pe = pe;
raw_spin_lock_init(&io7->irq_lock);

diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c
index b1549db..74b1d01 100644
--- a/arch/alpha/kernel/core_mcpcia.c
+++ b/arch/alpha/kernel/core_mcpcia.c
@@ -364,9 +364,11 @@ mcpcia_startup_hose(struct pci_controller *hose)
* Window 1 is scatter-gather (up to) 1GB at 1GB (for pci)
* Window 2 is direct access 2GB at 2GB
*/
- hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+ hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+ SMP_CACHE_BYTES);
hose->sg_pci = iommu_arena_new(hose, 0x40000000,
- size_for_memory(0x40000000), 0);
+ size_for_memory(0x40000000),
+ SMP_CACHE_BYTES);

__direct_map_base = 0x80000000;
__direct_map_size = 0x80000000;
diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
index 2c00b61..98d5b6f 100644
--- a/arch/alpha/kernel/core_t2.c
+++ b/arch/alpha/kernel/core_t2.c
@@ -351,7 +351,7 @@ t2_sg_map_window2(struct pci_controller *hose,

/* Note we can only do 1 SG window, as the other is for direct, so
do an ISA SG area, especially for the floppy. */
- hose->sg_isa = iommu_arena_new(hose, base, length, 0);
+ hose->sg_isa = iommu_arena_new(hose, base, length, SMP_CACHE_BYTES);
hose->sg_pci = NULL;

temp = (base & 0xfff00000UL) | ((base + length - 1) >> 20);
diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c
index 9755159..2a2820f 100644
--- a/arch/alpha/kernel/core_titan.c
+++ b/arch/alpha/kernel/core_titan.c
@@ -316,10 +316,12 @@ titan_init_one_pachip_port(titan_pachip_port *port, int index)
* Window 1 is direct access 1GB at 2GB
* Window 2 is scatter-gather 1GB at 3GB
*/
- hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+ hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+ SMP_CACHE_BYTES);
hose->sg_isa->align_entry = 8; /* 64KB for ISA */

- hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000, 0);
+ hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x40000000,
+ SMP_CACHE_BYTES);
hose->sg_pci->align_entry = 4; /* Titan caches 4 PTEs at a time */

port->wsba[0].csr = hose->sg_isa->dma_base | 3;
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
index f334b89..fc1ab73 100644
--- a/arch/alpha/kernel/core_tsunami.c
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -319,12 +319,14 @@ tsunami_init_one_pchip(tsunami_pchip *pchip, int index)
* NOTE: we need the align_entry settings for Acer devices on ES40,
* specifically floppy and IDE when memory is larger than 2GB.
*/
- hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
+ hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+ SMP_CACHE_BYTES);
/* Initially set for 4 PTEs, but will be overridden to 64K for ISA. */
hose->sg_isa->align_entry = 4;

hose->sg_pci = iommu_arena_new(hose, 0x40000000,
- size_for_memory(0x40000000), 0);
+ size_for_memory(0x40000000),
+ SMP_CACHE_BYTES);
hose->sg_pci->align_entry = 4; /* Tsunami caches 4 PTEs at a time */

__direct_map_base = 0x80000000;
diff --git a/arch/alpha/kernel/core_wildfire.c b/arch/alpha/kernel/core_wildfire.c
index cad36fc..1099a07 100644
--- a/arch/alpha/kernel/core_wildfire.c
+++ b/arch/alpha/kernel/core_wildfire.c
@@ -111,8 +111,10 @@ wildfire_init_hose(int qbbno, int hoseno)
* ??? We ought to scale window 3 memory.
*
*/
- hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000, 0);
- hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000, 0);
+ hose->sg_isa = iommu_arena_new(hose, 0x00800000, 0x00800000,
+ SMP_CACHE_BYTES);
+ hose->sg_pci = iommu_arena_new(hose, 0xc0000000, 0x08000000,
+ SMP_CACHE_BYTES);

pci = WILDFIRE_pci(qbbno, hoseno);

diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index a9378ee..091cff3 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -33,7 +33,7 @@ alloc_pci_controller(void)
{
struct pci_controller *hose;

- hose = memblock_alloc(sizeof(*hose), 0);
+ hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);

*hose_tail = hose;
hose_tail = &hose->next;
@@ -44,7 +44,7 @@ alloc_pci_controller(void)
struct resource * __init
alloc_resource(void)
{
- return memblock_alloc(sizeof(struct resource), 0);
+ return memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);
}

SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus,
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 13937e7..9709812 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -392,7 +392,7 @@ alloc_pci_controller(void)
{
struct pci_controller *hose;

- hose = memblock_alloc(sizeof(*hose), 0);
+ hose = memblock_alloc(sizeof(*hose), SMP_CACHE_BYTES);

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

diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 82cf950..46e08e0 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/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 = memblock_alloc(sizeof(*arena), 0);
+ arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
}

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 = memblock_alloc(sizeof(*arena), 0);
+ arena = memblock_alloc(sizeof(*arena), SMP_CACHE_BYTES);
arena->ptes = memblock_alloc_from(mem_size, align, 0);

#endif /* CONFIG_DISCONTIGMEM */
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 840a4ad..ac7e088 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -856,7 +856,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
*/
boot_alias_start = phys_to_idmap(start);
if (arm_has_idmap_alias() && boot_alias_start != IDMAP_INVALID_ADDR) {
- res = memblock_alloc(sizeof(*res), 0);
+ res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
res->name = "System RAM (boot alias)";
res->start = boot_alias_start;
res->end = phys_to_idmap(end);
@@ -864,7 +864,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc)
request_resource(&iomem_resource, res);
}

- res = memblock_alloc(sizeof(*res), 0);
+ res = memblock_alloc(sizeof(*res), SMP_CACHE_BYTES);
res->name = "System RAM";
res->start = start;
res->end = end;
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index cd5732a..083dcd9 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -726,7 +726,7 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
u64 size;
int i;

- provider = memblock_alloc(sizeof(*provider), 0);
+ provider = memblock_alloc(sizeof(*provider), SMP_CACHE_BYTES);
if (!provider)
return -ENOMEM;

@@ -736,12 +736,14 @@ static int __init _setup_clkctrl_provider(struct device_node *np)
of_property_count_elems_of_size(np, "reg", sizeof(u32)) / 2;

provider->addr - memblock_alloc(sizeof(void *) * provider->num_addrs, 0);
+ memblock_alloc(sizeof(void *) * provider->num_addrs,
+ SMP_CACHE_BYTES);
if (!provider->addr)
return -ENOMEM;

provider->size - memblock_alloc(sizeof(u32) * provider->num_addrs, 0);
+ memblock_alloc(sizeof(u32) * provider->num_addrs,
+ SMP_CACHE_BYTES);
if (!provider->size)
return -ENOMEM;

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 46d48ea..44def5b 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -212,7 +212,7 @@ static void __init request_standard_resources(void)
kernel_data.end = __pa_symbol(_end - 1);

for_each_memblock(memory, region) {
- res = memblock_alloc_low(sizeof(*res), 0);
+ res = memblock_alloc_low(sizeof(*res), SMP_CACHE_BYTES);
if (memblock_is_nomap(region)) {
res->name = "reserved";
res->flags = IORESOURCE_MEM;
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 9a6603f..91bd1e1 100644
--- a/arch/ia64/kernel/mca.c
+++ b/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 *)memblock_alloc(size, 0); \
+ (ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES); \
ia64_state_log[it].isl_log[IA64_LOG_NEXT_INDEX(it)] = \
- (ia64_err_rec_t *)memblock_alloc(size, 0);}
+ (ia64_err_rec_t *)memblock_alloc(size, SMP_CACHE_BYTES);}
#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)
diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index ab545da..9340bcb 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -59,8 +59,10 @@ struct ia64_tr_entry *ia64_idtrs[NR_CPUS];
void __init
mmu_context_init (void)
{
- ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
- ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3, 0);
+ ia64_ctx.bitmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3,
+ SMP_CACHE_BYTES);
+ ia64_ctx.flushmap = memblock_alloc((ia64_ctx.max_ctx + 1) >> 3,
+ SMP_CACHE_BYTES);
}

/*
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index 98f5522..8df13d0 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -391,7 +391,9 @@ void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node)
if (node >= num_online_nodes()) /* Headless/memless IO nodes */
node = 0;

- hubdev_info = (struct hubdev_info *)memblock_alloc_node(size, 0, node);
+ hubdev_info = (struct hubdev_info *)memblock_alloc_node(size,
+ SMP_CACHE_BYTES,
+ node);

npda->pdinfo = (void *)hubdev_info;
}
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 71ad6b0..a6d40a2 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -511,7 +511,8 @@ static void __init sn_init_pdas(char **cmdline_p)
*/
for_each_online_node(cnode) {
nodepdaindr[cnode] - memblock_alloc_node(sizeof(nodepda_t), 0, cnode);
+ memblock_alloc_node(sizeof(nodepda_t), SMP_CACHE_BYTES,
+ cnode);
memset(nodepdaindr[cnode]->phys_cpuid, -1,
sizeof(nodepdaindr[cnode]->phys_cpuid));
spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
@@ -522,7 +523,7 @@ static void __init sn_init_pdas(char **cmdline_p)
*/
for (cnode = num_online_nodes(); cnode < num_cnodes; cnode++)
nodepdaindr[cnode] - memblock_alloc_node(sizeof(nodepda_t), 0, 0);
+ memblock_alloc_node(sizeof(nodepda_t), SMP_CACHE_BYTES, 0);

/*
* Now copy the array of nodepda pointers to each nodepda.
diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
index 8be8b75..4d64711 100644
--- a/arch/m68k/sun3/sun3dvma.c
+++ b/arch/m68k/sun3/sun3dvma.c
@@ -268,7 +268,7 @@ void __init dvma_init(void)
list_add(&(hole->list), &hole_list);

iommu_use = memblock_alloc(IOMMU_TOTAL_ENTRIES * sizeof(unsigned long),
- 0);
+ SMP_CACHE_BYTES);

dvma_unmap_iommu(DVMA_START, DVMA_SIZE);

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 8c14988..b17fd8a 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -376,7 +376,7 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
if (mem_init_done)
p = kzalloc(size, mask);
else {
- p = memblock_alloc(size, 0);
+ p = memblock_alloc(size, SMP_CACHE_BYTES);
if (p)
memset(p, 0, size);
}
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 4efa8af..4de68e9 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -908,7 +908,7 @@ static void __init resource_init(void)
if (end >= HIGHMEM_START)
end = HIGHMEM_START - 1;

- res = memblock_alloc(sizeof(struct resource), 0);
+ res = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES);

res->start = start;
res->end = end;
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index d63be12..8271ffe 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -204,7 +204,8 @@ pci_create_OF_bus_map(void)
struct property* of_prop;
struct device_node *dn;

- of_prop = memblock_alloc(sizeof(struct property) + 256, 0);
+ of_prop = memblock_alloc(sizeof(struct property) + 256,
+ SMP_CACHE_BYTES);
dn = of_find_node_by_path("/");
if (dn) {
memset(of_prop, -1, sizeof(struct property) + 256);
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c
index 5b61704..dedf88a 100644
--- a/arch/powerpc/lib/alloc.c
+++ b/arch/powerpc/lib/alloc.c
@@ -14,7 +14,7 @@ void * __ref zalloc_maybe_bootmem(size_t size, gfp_t mask)
if (slab_is_available())
p = kzalloc(size, mask);
else {
- p = memblock_alloc(size, 0);
+ p = memblock_alloc(size, SMP_CACHE_BYTES);
}
return p;
}
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 67b9d7b..2faca46 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -461,10 +461,11 @@ void __init mmu_context_init(void)
/*
* Allocate the maps used by context management
*/
- context_map = memblock_alloc(CTX_MAP_SIZE, 0);
- context_mm = memblock_alloc(sizeof(void *) * (LAST_CONTEXT + 1), 0);
+ context_map = memblock_alloc(CTX_MAP_SIZE, SMP_CACHE_BYTES);
+ context_mm = memblock_alloc(sizeof(void *) * (LAST_CONTEXT + 1),
+ SMP_CACHE_BYTES);
#ifdef CONFIG_SMP
- stale_map[boot_cpuid] = memblock_alloc(CTX_MAP_SIZE, 0);
+ stale_map[boot_cpuid] = memblock_alloc(CTX_MAP_SIZE, SMP_CACHE_BYTES);

cpuhp_setup_state_nocalls(CPUHP_POWERPC_MMU_CTX_PREPARE,
"powerpc/mmu/ctx:prepare",
diff --git a/arch/powerpc/platforms/powermac/nvram.c b/arch/powerpc/platforms/powermac/nvram.c
index f3391be..ae54d7f 100644
--- a/arch/powerpc/platforms/powermac/nvram.c
+++ b/arch/powerpc/platforms/powermac/nvram.c
@@ -513,7 +513,7 @@ static int __init core99_nvram_setup(struct device_node *dp, unsigned long addr)
printk(KERN_ERR "nvram: no address\n");
return -EINVAL;
}
- nvram_image = memblock_alloc(NVRAM_SIZE, 0);
+ nvram_image = memblock_alloc(NVRAM_SIZE, SMP_CACHE_BYTES);
nvram_data = ioremap(addr, NVRAM_SIZE*2);
nvram_naddrs = 1; /* Make sure we get the correct case */

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index aba81cb..dd80744 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -3769,7 +3769,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
phb_id = be64_to_cpup(prop64);
pr_debug(" PHB-ID : 0x%016llx\n", phb_id);

- phb = memblock_alloc(sizeof(*phb), 0);
+ phb = memblock_alloc(sizeof(*phb), SMP_CACHE_BYTES);

/* Allocate PCI controller */
phb->hose = hose = pcibios_alloc_controller(np);
@@ -3815,7 +3815,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
else
phb->diag_data_size = PNV_PCI_DIAG_BUF_SIZE;

- phb->diag_data = memblock_alloc(phb->diag_data_size, 0);
+ phb->diag_data = memblock_alloc(phb->diag_data_size, SMP_CACHE_BYTES);

/* Parse 32-bit and IO ranges (if any) */
pci_process_bridge_OF_ranges(hose, np, !hose->global_number);
@@ -3874,7 +3874,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
}
pemap_off = size;
size += phb->ioda.total_pe_num * sizeof(struct pnv_ioda_pe);
- aux = memblock_alloc(size, 0);
+ aux = memblock_alloc(size, SMP_CACHE_BYTES);
phb->ioda.pe_alloc = aux;
phb->ioda.m64_segmap = aux + m64map_off;
phb->ioda.m32_segmap = aux + m32map_off;
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c
index 2444fed..d45450f 100644
--- a/arch/powerpc/sysdev/msi_bitmap.c
+++ b/arch/powerpc/sysdev/msi_bitmap.c
@@ -128,7 +128,7 @@ int __ref msi_bitmap_alloc(struct msi_bitmap *bmp, unsigned int irq_count,
if (bmp->bitmap_from_slab)
bmp->bitmap = kzalloc(size, GFP_KERNEL);
else {
- bmp->bitmap = memblock_alloc(size, 0);
+ bmp->bitmap = memblock_alloc(size, SMP_CACHE_BYTES);
/* the bitmap won't be freed from memblock allocator */
kmemleak_not_leak(bmp->bitmap);
}
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index 6738168..624cb47 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -650,7 +650,7 @@ static int __init eth_setup(char *str)
return 1;
}

- new = memblock_alloc(sizeof(*new), 0);
+ new = memblock_alloc(sizeof(*new), SMP_CACHE_BYTES);

INIT_LIST_HEAD(&new->list);
new->index = n;
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index af72633..046fa9e 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -1575,7 +1575,7 @@ static int __init vector_setup(char *str)
str, error);
return 1;
}
- new = memblock_alloc(sizeof(*new), 0);
+ new = memblock_alloc(sizeof(*new), SMP_CACHE_BYTES);
INIT_LIST_HEAD(&new->list);
new->unit = n;
new->arguments = str;
diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c
index 3678f5b..ce169ea 100644
--- a/arch/um/kernel/initrd.c
+++ b/arch/um/kernel/initrd.c
@@ -36,7 +36,7 @@ int __init read_initrd(void)
return 0;
}

- area = memblock_alloc(size, 0);
+ area = memblock_alloc(size, SMP_CACHE_BYTES);

if (load_initrd(initrd, area, size) = -1)
return 0;
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index b2c38b32..4b0cb68 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -206,7 +206,7 @@ request_standard_resources(struct meminfo *mi)
if (mi->bank[i].size = 0)
continue;

- res = memblock_alloc_low(sizeof(*res), 0);
+ res = memblock_alloc_low(sizeof(*res), SMP_CACHE_BYTES);
res->name = "System RAM";
res->start = mi->bank[i].start;
res->end = mi->bank[i].start + mi->bank[i].size - 1;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 35419f9..de2992a 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -933,7 +933,7 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
*/
#define HPET_RESOURCE_NAME_SIZE 9
hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE,
- 0);
+ SMP_CACHE_BYTES);

hpet_res->name = (void *)&hpet_res[1];
hpet_res->flags = IORESOURCE_MEM;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 5fbc57e..2953bbf 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/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 = memblock_alloc(n, 0);
+ mem = memblock_alloc(n, SMP_CACHE_BYTES);
res = (void *)mem;

mem += sizeof(struct resource) * nr_ioapics;
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index cd3b448..5fb541c 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1093,7 +1093,8 @@ void __init e820__reserve_resources(void)
struct resource *res;
u64 end;

- res = memblock_alloc(sizeof(*res) * e820_table->nr_entries, 0);
+ res = memblock_alloc(sizeof(*res) * e820_table->nr_entries,
+ SMP_CACHE_BYTES);
e820_res = res;

for (i = 0; i < e820_table->nr_entries; i++) {
diff --git a/arch/x86/platform/olpc/olpc_dt.c b/arch/x86/platform/olpc/olpc_dt.c
index 115c8e4..24d2175 100644
--- a/arch/x86/platform/olpc/olpc_dt.c
+++ b/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 = memblock_alloc(chunk_size, 0);
+ res = memblock_alloc(chunk_size, SMP_CACHE_BYTES);
BUG_ON(!res);
prom_early_allocated += chunk_size;
memset(res, 0, chunk_size);
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 190846d..d052712 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -646,7 +646,7 @@ static int __init iss_net_setup(char *str)
return 1;
}

- new = memblock_alloc(sizeof(*new), 0);
+ new = memblock_alloc(sizeof(*new), SMP_CACHE_BYTES);
if (new = NULL) {
pr_err("Alloc_bootmem failed\n");
return 1;
diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c
index 8aa5f8f..d4e10af 100644
--- a/drivers/clk/ti/clk.c
+++ b/drivers/clk/ti/clk.c
@@ -347,7 +347,7 @@ void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem)
{
struct clk_iomap *io;

- io = memblock_alloc(sizeof(*io), 0);
+ io = memblock_alloc(sizeof(*io), SMP_CACHE_BYTES);

io->mem = mem;

diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c
index 2a23453..d168c87 100644
--- a/drivers/firmware/memmap.c
+++ b/drivers/firmware/memmap.c
@@ -333,7 +333,8 @@ int __init firmware_map_add_early(u64 start, u64 end, const char *type)
{
struct firmware_map_entry *entry;

- entry = memblock_alloc(sizeof(struct firmware_map_entry), 0);
+ entry = memblock_alloc(sizeof(struct firmware_map_entry),
+ SMP_CACHE_BYTES);
if (WARN_ON(!entry))
return -ENOMEM;

diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index 880a81c..0a0b8e1 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -492,7 +492,7 @@ int __init smu_init (void)
goto fail_np;
}

- smu = memblock_alloc(sizeof(struct smu_device), 0);
+ smu = memblock_alloc(sizeof(struct smu_device), SMP_CACHE_BYTES);

spin_lock_init(&smu->lock);
INIT_LIST_HEAD(&smu->cmd_list);
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index d6255c2..1977ee0 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -36,6 +36,7 @@ int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
* panic()s on allocation failure.
*/
end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end;
+ align = !align ? SMP_CACHE_BYTES : align;
base = __memblock_alloc_base(size, align, end);
if (!base)
return -ENOMEM;
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index d3bc270..cf5f7af 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -421,7 +421,8 @@ static inline void * __init memblock_alloc_node(phys_addr_t size,
static inline void * __init memblock_alloc_node_nopanic(phys_addr_t size,
int nid)
{
- return memblock_alloc_try_nid_nopanic(size, 0, MEMBLOCK_LOW_LIMIT,
+ return memblock_alloc_try_nid_nopanic(size, SMP_CACHE_BYTES,
+ MEMBLOCK_LOW_LIMIT,
MEMBLOCK_ALLOC_ACCESSIBLE, nid);
}

diff --git a/init/main.c b/init/main.c
index 473b554..568ad27 100644
--- a/init/main.c
+++ b/init/main.c
@@ -375,10 +375,11 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
static void __init setup_command_line(char *command_line)
{
saved_command_line - memblock_alloc(strlen(boot_command_line) + 1, 0);
+ memblock_alloc(strlen(boot_command_line) + 1, SMP_CACHE_BYTES);
initcall_command_line - memblock_alloc(strlen(boot_command_line) + 1, 0);
- static_command_line = memblock_alloc(strlen(command_line) + 1, 0);
+ memblock_alloc(strlen(boot_command_line) + 1, SMP_CACHE_BYTES);
+ static_command_line = memblock_alloc(strlen(command_line) + 1,
+ SMP_CACHE_BYTES);
strcpy(saved_command_line, boot_command_line);
strcpy(static_command_line, command_line);
}
@@ -768,8 +769,10 @@ static int __init initcall_blacklist(char *str)
str_entry = strsep(&str, ",");
if (str_entry) {
pr_debug("blacklisting initcall %s\n", str_entry);
- entry = memblock_alloc(sizeof(*entry), 0);
- entry->buf = memblock_alloc(strlen(str_entry) + 1, 0);
+ entry = memblock_alloc(sizeof(*entry),
+ SMP_CACHE_BYTES);
+ entry->buf = memblock_alloc(strlen(str_entry) + 1,
+ SMP_CACHE_BYTES);
strcpy(entry->buf, str_entry);
list_add(&entry->next, &blacklisted_initcalls);
}
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 3c9e365..b0308a2 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -963,7 +963,8 @@ void __init __register_nosave_region(unsigned long start_pfn,
BUG_ON(!region);
} else {
/* This allocation cannot fail */
- region = memblock_alloc(sizeof(struct nosave_region), 0);
+ region = memblock_alloc(sizeof(struct nosave_region),
+ SMP_CACHE_BYTES);
}
region->start_pfn = start_pfn;
region->end_pfn = end_pfn;
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 75b5e76..8d666ab 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -163,7 +163,7 @@ EXPORT_SYMBOL(zalloc_cpumask_var);
*/
void __init alloc_bootmem_cpumask_var(cpumask_var_t *mask)
{
- *mask = memblock_alloc(cpumask_size(), 0);
+ *mask = memblock_alloc(cpumask_size(), SMP_CACHE_BYTES);
}

/**
diff --git a/mm/memblock.c b/mm/memblock.c
index 32e5c62..59b7b51 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1298,9 +1298,6 @@ static phys_addr_t __init memblock_alloc_range_nid(phys_addr_t size,
{
phys_addr_t found;

- if (!align)
- align = SMP_CACHE_BYTES;
-
found = memblock_find_in_range_node(size, align, start, end, nid,
flags);
if (found && !memblock_reserve(found, size)) {
@@ -1394,8 +1391,6 @@ phys_addr_t __init memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t ali
* The allocation is performed from memory region limited by
* memblock.current_limit if @max_addr = %MEMBLOCK_ALLOC_ACCESSIBLE.
*
- * The memory block is aligned on %SMP_CACHE_BYTES if @align = 0.
- *
* The phys address of allocated boot memory block is converted to virtual and
* allocated memory is reset to 0.
*
@@ -1425,9 +1420,6 @@ static void * __init memblock_alloc_internal(
if (WARN_ON_ONCE(slab_is_available()))
return kzalloc_node(size, GFP_NOWAIT, nid);

- if (!align)
- align = SMP_CACHE_BYTES;
-
if (max_addr > memblock.current_limit)
max_addr = memblock.current_limit;
again:
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 511447a..e687816 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -7615,9 +7615,11 @@ void *__init alloc_large_system_hash(const char *tablename,
size = bucketsize << log2qty;
if (flags & HASH_EARLY) {
if (flags & HASH_ZERO)
- table = memblock_alloc_nopanic(size, 0);
+ table = memblock_alloc_nopanic(size,
+ SMP_CACHE_BYTES);
else
- table = memblock_alloc_raw(size, 0);
+ table = memblock_alloc_raw(size,
+ SMP_CACHE_BYTES);
} else if (hashdist) {
table = __vmalloc(size, gfp_flags, PAGE_KERNEL);
} else {
diff --git a/mm/percpu.c b/mm/percpu.c
index d21cb13..3f3af21 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1101,9 +1101,8 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
region_size = ALIGN(start_offset + map_size, lcm_align);

/* allocate chunk */
- chunk = memblock_alloc(sizeof(struct pcpu_chunk) +
- BITS_TO_LONGS(region_size >> PAGE_SHIFT),
- 0);
+ chunk = memblock_alloc(sizeof(struct pcpu_chunk) + BITS_TO_LONGS(region_size >> PAGE_SHIFT),
+ SMP_CACHE_BYTES);

INIT_LIST_HEAD(&chunk->list);

@@ -1114,12 +1113,12 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
chunk->nr_pages = region_size >> PAGE_SHIFT;
region_bits = pcpu_chunk_map_bits(chunk);

- chunk->alloc_map = memblock_alloc(BITS_TO_LONGS(region_bits) *
- sizeof(chunk->alloc_map[0]), 0);
- chunk->bound_map = memblock_alloc(BITS_TO_LONGS(region_bits + 1) *
- sizeof(chunk->bound_map[0]), 0);
- chunk->md_blocks = memblock_alloc(pcpu_chunk_nr_blocks(chunk) *
- sizeof(chunk->md_blocks[0]), 0);
+ chunk->alloc_map = memblock_alloc(BITS_TO_LONGS(region_bits) * sizeof(chunk->alloc_map[0]),
+ SMP_CACHE_BYTES);
+ chunk->bound_map = memblock_alloc(BITS_TO_LONGS(region_bits + 1) * sizeof(chunk->bound_map[0]),
+ SMP_CACHE_BYTES);
+ chunk->md_blocks = memblock_alloc(pcpu_chunk_nr_blocks(chunk) * sizeof(chunk->md_blocks[0]),
+ SMP_CACHE_BYTES);
pcpu_init_md_blocks(chunk);

/* manage populated page bitmap */
@@ -2074,12 +2073,14 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0);

/* process group information and build config tables accordingly */
- group_offsets = memblock_alloc(ai->nr_groups *
- sizeof(group_offsets[0]), 0);
- group_sizes = memblock_alloc(ai->nr_groups *
- sizeof(group_sizes[0]), 0);
- unit_map = memblock_alloc(nr_cpu_ids * sizeof(unit_map[0]), 0);
- unit_off = memblock_alloc(nr_cpu_ids * sizeof(unit_off[0]), 0);
+ group_offsets = memblock_alloc(ai->nr_groups * sizeof(group_offsets[0]),
+ SMP_CACHE_BYTES);
+ group_sizes = memblock_alloc(ai->nr_groups * sizeof(group_sizes[0]),
+ SMP_CACHE_BYTES);
+ unit_map = memblock_alloc(nr_cpu_ids * sizeof(unit_map[0]),
+ SMP_CACHE_BYTES);
+ unit_off = memblock_alloc(nr_cpu_ids * sizeof(unit_off[0]),
+ SMP_CACHE_BYTES);

for (cpu = 0; cpu < nr_cpu_ids; cpu++)
unit_map[cpu] = UINT_MAX;
@@ -2143,8 +2144,8 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
* empty chunks.
*/
pcpu_nr_slots = __pcpu_size_to_slot(pcpu_unit_size) + 2;
- pcpu_slot = memblock_alloc(
- pcpu_nr_slots * sizeof(pcpu_slot[0]), 0);
+ pcpu_slot = memblock_alloc(pcpu_nr_slots * sizeof(pcpu_slot[0]),
+ SMP_CACHE_BYTES);
for (i = 0; i < pcpu_nr_slots; i++)
INIT_LIST_HEAD(&pcpu_slot[i]);

@@ -2457,7 +2458,7 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;
areas_size = PFN_ALIGN(ai->nr_groups * sizeof(void *));

- areas = memblock_alloc_nopanic(areas_size, 0);
+ areas = memblock_alloc_nopanic(areas_size, SMP_CACHE_BYTES);
if (!areas) {
rc = -ENOMEM;
goto out_free;
@@ -2598,7 +2599,7 @@ int __init pcpu_page_first_chunk(size_t reserved_size,
/* unaligned allocations can't be freed, round up to page size */
pages_size = PFN_ALIGN(unit_pages * num_possible_cpus() *
sizeof(pages[0]));
- pages = memblock_alloc(pages_size, 0);
+ pages = memblock_alloc(pages_size, SMP_CACHE_BYTES);

/* allocate pages */
j = 0;
diff --git a/mm/sparse.c b/mm/sparse.c
index c0788e3..6ff7cc0 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -68,7 +68,8 @@ static noinline struct mem_section __ref *sparse_index_alloc(int nid)
if (slab_is_available())
section = kzalloc_node(array_size, GFP_KERNEL, nid);
else
- section = memblock_alloc_node(array_size, 0, nid);
+ section = memblock_alloc_node(array_size, SMP_CACHE_BYTES,
+ nid);

return section;
}
--
2.7.4