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memblock: stop using implicit alignment to SMP_CACHE_BYTES 

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

Implicit alignment is done deep in the memblock allocator and it can
come as a surprise.  Not that such an alignment would be wrong even
when used incorrectly but it is better to be explicit for the sake of
clarity and the prinicple of the least surprise.

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)
)

[mhocko@suse.com: changelog update]
[akpm@linux-foundation.org: coding-style fixes]
[rppt@linux.ibm.com: fix missed uses of implicit alignment]
  Link: http://lkml.kernel.org/r/20181016133656.GA10925@rapoport-lnx
Link: http://lkml.kernel.org/r/1538687224-17535-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Paul Burton <paul.burton@mips.com>	[MIPS]
Acked-by: Michael Ellerman <mpe@ellerman.id.au>	[powerpc]
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mike Rapoport 2018-10-30 15:09:57 -07:00 committed by Linus Torvalds
parent 530d4c0cfd
commit 7e1c4e2792
50 changed files with 120 additions and 96 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/alpha/kernel/core_apecs.c
View File

@ -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;

3
arch/alpha/kernel/core_lca.c
View File

@ -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;

4
arch/alpha/kernel/core_marvel.c
View File

@ -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);

6
arch/alpha/kernel/core_mcpcia.c
View File

@ -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;

2
arch/alpha/kernel/core_t2.c
View File

@ -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);

6
arch/alpha/kernel/core_titan.c
View File

@ -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;

6
arch/alpha/kernel/core_tsunami.c
View File

@ -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;

6
arch/alpha/kernel/core_wildfire.c
View File

@ -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);

4
arch/alpha/kernel/pci-noop.c
View File

@ -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,

4
arch/alpha/kernel/pci.c
View File

@ -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);
}

4
arch/alpha/kernel/pci_iommu.c
View File

@ -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 */

4
arch/arm/kernel/setup.c
View File

@ -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;

8
arch/arm/mach-omap2/omap_hwmod.c
View File

@ -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;

2
arch/arm64/kernel/setup.c
View File

@ -218,7 +218,7 @@ static void __init request_standard_resources(void)
num_standard_resources = memblock.memory.cnt;
standard_resources = memblock_alloc_low(num_standard_resources *
sizeof(*standard_resources),
0);
SMP_CACHE_BYTES);
for_each_memblock(memory, region) {
res = &standard_resources[i++];

4
arch/ia64/kernel/mca.c
View File

@ -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)

6
arch/ia64/mm/tlb.c
View File

@ -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);
}
/*

4
arch/ia64/sn/kernel/io_common.c
View File

@ -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;
}

5
arch/ia64/sn/kernel/setup.c
View File

@ -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.

2
arch/m68k/sun3/sun3dvma.c
View File

@ -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);

2
arch/microblaze/mm/init.c
View File

@ -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);
}

2
arch/mips/kernel/setup.c
View File

@ -916,7 +916,7 @@ 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;

2
arch/powerpc/kernel/paca.c
View File

@ -198,7 +198,7 @@ void __init allocate_paca_ptrs(void)
paca_nr_cpu_ids = nr_cpu_ids;
paca_ptrs_size = sizeof(struct paca_struct *) * nr_cpu_ids;
paca_ptrs = __va(memblock_phys_alloc(paca_ptrs_size, 0));
paca_ptrs = __va(memblock_phys_alloc(paca_ptrs_size, SMP_CACHE_BYTES));
memset(paca_ptrs, 0x88, paca_ptrs_size);
}

3
arch/powerpc/kernel/pci_32.c
View File

@ -203,7 +203,8 @@ 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);

2
arch/powerpc/lib/alloc.c
View File

@ -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;
}

7
arch/powerpc/mm/mmu_context_nohash.c
View File

@ -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",

2
arch/powerpc/platforms/powermac/nvram.c
View File

@ -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 */

6
arch/powerpc/platforms/powernv/pci-ioda.c
View File

@ -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;

2
arch/powerpc/sysdev/msi_bitmap.c
View File

@ -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);
}

2
arch/um/drivers/net_kern.c
View File

@ -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;

2
arch/um/drivers/vector_kern.c
View File

@ -1580,7 +1580,7 @@ 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;

2
arch/um/kernel/initrd.c
View File

@ -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;

2
arch/unicore32/kernel/setup.c
View File

@ -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;

2
arch/x86/kernel/acpi/boot.c
View File

@ -934,7 +934,7 @@ 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;

2
arch/x86/kernel/apic/io_apic.c
View File

@ -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;

3
arch/x86/kernel/e820.c
View File

@ -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++) {

2
arch/x86/platform/olpc/olpc_dt.c
View File

@ -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);

2
arch/xtensa/platforms/iss/network.c
View File

@ -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;

2
drivers/clk/ti/clk.c
View File

@ -342,7 +342,7 @@ 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;

2
drivers/firmware/efi/memmap.c
View File

@ -15,7 +15,7 @@
static phys_addr_t __init __efi_memmap_alloc_early(unsigned long size)
{
return memblock_phys_alloc(size, 0);
return memblock_phys_alloc(size, SMP_CACHE_BYTES);
}
static phys_addr_t __init __efi_memmap_alloc_late(unsigned long size)

3
drivers/firmware/memmap.c
View File

@ -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;

2
drivers/macintosh/smu.c
View File

@ -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);

1
drivers/of/of_reserved_mem.c
View File

@ -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;

3
include/linux/memblock.h
View File

@ -406,7 +406,8 @@ 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);
}

13
init/main.c
View File

@ -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);
}
@ -773,8 +774,10 @@ 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);
}

3
kernel/power/snapshot.c
View File

@ -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;

2
lib/cpumask.c
View File

@ -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);
}
/**

8
mm/memblock.c
View File

@ -1247,9 +1247,6 @@ 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)) {
@ -1343,8 +1340,6 @@ 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.
*
@ -1374,9 +1369,6 @@ 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:

6
mm/page_alloc.c
View File

@ -7710,9 +7710,11 @@ 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 {

36
mm/percpu.c
View File

@ -1103,7 +1103,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
/* allocate chunk */
chunk = memblock_alloc(sizeof(struct pcpu_chunk) +
BITS_TO_LONGS(region_size >> PAGE_SHIFT),
0);
SMP_CACHE_BYTES);
INIT_LIST_HEAD(&chunk->list);
@ -1114,12 +1114,12 @@ 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 */
@ -2075,12 +2075,14 @@ 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;
@ -2144,8 +2146,8 @@ 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]);
@ -2458,7 +2460,7 @@ 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;
@ -2599,7 +2601,7 @@ 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;

3
mm/sparse.c
View File

@ -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;
}