The patch titled
Subject: memblock: replace alloc_bootmem_low_pages with memblock_alloc_low
has been added to the -mm tree. Its filename is
memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Subject: memblock: replace alloc_bootmem_low_pages with memblock_alloc_low
The alloc_bootmem_low_pages() function allocates PAGE_SIZE aligned regions
from low memory. memblock_alloc_low() with alignment set to PAGE_SIZE does
exactly the same thing.
The conversion is done using the following semantic patch:
@@
expression e;
@@
- alloc_bootmem_low_pages(e)
+ memblock_alloc_low(e, PAGE_SIZE)
Link: http://lkml.kernel.org/r/1536927045-23536-19-git-send-email-rppt@xxxxxxxxxxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Chris Zankel <chris@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Greentime Hu <green.hu@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Guan Xuetao <gxt@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: "James E.J. Bottomley" <jejb@xxxxxxxxxxxxxxxx>
Cc: Jonas Bonn <jonas@xxxxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Ley Foon Tan <lftan@xxxxxxxxxx>
Cc: Mark Salter <msalter@xxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Cc: Matt Turner <mattst88@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxx>
Cc: Paul Burton <paul.burton@xxxxxxxx>
Cc: Richard Kuo <rkuo@xxxxxxxxxxxxxx>
Cc: Richard Weinberger <richard@xxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Serge Semin <fancer.lancer@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arc/mm/highmem.c | 2 +-
arch/m68k/atari/stram.c | 3 ++-
arch/m68k/mm/motorola.c | 5 +++--
arch/mips/cavium-octeon/dma-octeon.c | 2 +-
arch/mips/mm/init.c | 3 ++-
arch/um/kernel/mem.c | 10 ++++++----
arch/xtensa/mm/mmu.c | 2 +-
7 files changed, 16 insertions(+), 11 deletions(-)
--- a/arch/arc/mm/highmem.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/arc/mm/highmem.c
@@ -123,7 +123,7 @@ static noinline pte_t * __init alloc_kma
pud_k = pud_offset(pgd_k, kvaddr);
pmd_k = pmd_offset(pud_k, kvaddr);
- pte_k = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+ pte_k = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
pmd_populate_kernel(&init_mm, pmd_k, pte_k);
return pte_k;
}
--- a/arch/m68k/atari/stram.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/m68k/atari/stram.c
@@ -95,7 +95,8 @@ void __init atari_stram_reserve_pages(vo
{
if (kernel_in_stram) {
pr_debug("atari_stram pool: kernel in ST-RAM, using alloc_bootmem!\n");
- stram_pool.start = (resource_size_t)alloc_bootmem_low_pages(pool_size);
+ stram_pool.start = (resource_size_t)memblock_alloc_low(pool_size,
+ PAGE_SIZE);
stram_pool.end = stram_pool.start + pool_size - 1;
request_resource(&iomem_resource, &stram_pool);
stram_virt_offset = 0;
--- a/arch/m68k/mm/motorola.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/m68k/mm/motorola.c
@@ -55,7 +55,7 @@ static pte_t * __init kernel_page_table(
{
pte_t *ptablep;
- ptablep = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+ ptablep = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
clear_page(ptablep);
__flush_page_to_ram(ptablep);
@@ -95,7 +95,8 @@ static pmd_t * __init kernel_ptr_table(v
last_pgtable += PTRS_PER_PMD;
if (((unsigned long)last_pgtable & ~PAGE_MASK) == 0) {
- last_pgtable = (pmd_t *)alloc_bootmem_low_pages(PAGE_SIZE);
+ last_pgtable = (pmd_t *)memblock_alloc_low(PAGE_SIZE,
+ PAGE_SIZE);
clear_page(last_pgtable);
__flush_page_to_ram(last_pgtable);
--- a/arch/mips/cavium-octeon/dma-octeon.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/mips/cavium-octeon/dma-octeon.c
@@ -244,7 +244,7 @@ void __init plat_swiotlb_setup(void)
swiotlb_nslabs = ALIGN(swiotlb_nslabs, IO_TLB_SEGSIZE);
swiotlbsize = swiotlb_nslabs << IO_TLB_SHIFT;
- octeon_swiotlb = alloc_bootmem_low_pages(swiotlbsize);
+ octeon_swiotlb = memblock_alloc_low(swiotlbsize, PAGE_SIZE);
if (swiotlb_init_with_tbl(octeon_swiotlb, swiotlb_nslabs, 1) == -ENOMEM)
panic("Cannot allocate SWIOTLB buffer");
--- a/arch/mips/mm/init.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/mips/mm/init.c
@@ -244,7 +244,8 @@ void __init fixrange_init(unsigned long
pmd = (pmd_t *)pud;
for (; (k < PTRS_PER_PMD) && (vaddr < end); pmd++, k++) {
if (pmd_none(*pmd)) {
- pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ pte = (pte_t *) memblock_alloc_low(PAGE_SIZE,
+ PAGE_SIZE);
set_pmd(pmd, __pmd((unsigned long)pte));
BUG_ON(pte != pte_offset_kernel(pmd, 0));
}
--- a/arch/um/kernel/mem.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/um/kernel/mem.c
@@ -64,7 +64,8 @@ void __init mem_init(void)
static void __init one_page_table_init(pmd_t *pmd)
{
if (pmd_none(*pmd)) {
- pte_t *pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ pte_t *pte = (pte_t *) memblock_alloc_low(PAGE_SIZE,
+ PAGE_SIZE);
set_pmd(pmd, __pmd(_KERNPG_TABLE +
(unsigned long) __pa(pte)));
if (pte != pte_offset_kernel(pmd, 0))
@@ -75,7 +76,7 @@ static void __init one_page_table_init(p
static void __init one_md_table_init(pud_t *pud)
{
#ifdef CONFIG_3_LEVEL_PGTABLES
- pmd_t *pmd_table = (pmd_t *) alloc_bootmem_low_pages(PAGE_SIZE);
+ pmd_t *pmd_table = (pmd_t *) memblock_alloc_low(PAGE_SIZE, PAGE_SIZE);
set_pud(pud, __pud(_KERNPG_TABLE + (unsigned long) __pa(pmd_table)));
if (pmd_table != pmd_offset(pud, 0))
BUG();
@@ -124,7 +125,7 @@ static void __init fixaddr_user_init( vo
return;
fixrange_init( FIXADDR_USER_START, FIXADDR_USER_END, swapper_pg_dir);
- v = (unsigned long) alloc_bootmem_low_pages(size);
+ v = (unsigned long) memblock_alloc_low(size, PAGE_SIZE);
memcpy((void *) v , (void *) FIXADDR_USER_START, size);
p = __pa(v);
for ( ; size > 0; size -= PAGE_SIZE, vaddr += PAGE_SIZE,
@@ -143,7 +144,8 @@ void __init paging_init(void)
unsigned long zones_size[MAX_NR_ZONES], vaddr;
int i;
- empty_zero_page = (unsigned long *) alloc_bootmem_low_pages(PAGE_SIZE);
+ empty_zero_page = (unsigned long *) memblock_alloc_low(PAGE_SIZE,
+ PAGE_SIZE);
for (i = 0; i < ARRAY_SIZE(zones_size); i++)
zones_size[i] = 0;
--- a/arch/xtensa/mm/mmu.c~memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low
+++ a/arch/xtensa/mm/mmu.c
@@ -31,7 +31,7 @@ static void * __init init_pmd(unsigned l
pr_debug("%s: vaddr: 0x%08lx, n_pages: %ld\n",
__func__, vaddr, n_pages);
- pte = alloc_bootmem_low_pages(n_pages * sizeof(pte_t));
+ pte = memblock_alloc_low(n_pages * sizeof(pte_t), PAGE_SIZE);
for (i = 0; i < n_pages; ++i)
pte_clear(NULL, 0, pte + i);
_
Patches currently in -mm which might be from rppt@xxxxxxxxxxxxxxxxxx are
hexagon-switch-to-no_bootmem.patch
of-ignore-sub-page-memory-regions.patch
nios2-use-generic-early_init_dt_add_memory_arch.patch
nios2-switch-to-no_bootmem.patch
um-setup_physmem-stop-using-global-variables.patch
um-switch-to-no_bootmem.patch
unicore32-switch-to-no_bootmem.patch
alpha-switch-to-no_bootmem.patch
mips-switch-to-no_bootmem.patch
mm-remove-config_no_bootmem.patch
mm-remove-config_have_memblock.patch
mm-remove-bootmem-allocator-implementation.patch
mm-nobootmem-remove-dead-code.patch
memblock-rename-memblock_alloc_nid_try_nid-to-memblock_phys_alloc.patch
memblock-remove-_virt-from-apis-returning-virtual-address.patch
memblock-replace-alloc_bootmem_align-with-memblock_alloc.patch
memblock-replace-alloc_bootmem_low-with-memblock_alloc_low.patch
memblock-replace-__alloc_bootmem_node_nopanic-with-memblock_alloc_try_nid_nopanic.patch
memblock-replace-alloc_bootmem_pages_nopanic-with-memblock_alloc_nopanic.patch
memblock-replace-__alloc_bootmem_nopanic-with-memblock_alloc_from_nopanic.patch
memblock-add-align-parameter-to-memblock_alloc_node.patch
memblock-replace-alloc_bootmem_pages_node-with-memblock_alloc_node.patch
memblock-replace-__alloc_bootmem_node-with-appropriate-memblock_-api.patch
memblock-replace-alloc_bootmem_node-with-memblock_alloc_node.patch
memblock-replace-alloc_bootmem_low_pages-with-memblock_alloc_low.patch
memblock-replace-alloc_bootmem_pages-with-memblock_alloc.patch
memblock-replace-__alloc_bootmem-with-memblock_alloc_from.patch
memblock-replace-alloc_bootmem-with-memblock_alloc.patch
mm-nobootmem-remove-bootmem-allocation-apis.patch
memblock-replace-free_bootmem_node-with-memblock_free.patch
memblock-replace-free_bootmem_late-with-memblock_free_late.patch
memblock-rename-free_all_bootmem-to-memblock_free_all.patch
memblock-rename-__free_pages_bootmem-to-memblock_free_pages.patch
mm-remove-nobootmem.patch
memblock-replace-bootmem_alloc_-with-memblock-variants.patch
mm-remove-include-linux-bootmemh.patch
docs-boot-time-mm-remove-bootmem-documentation.patch
