From e8625dce71b4c23eb81bc9b023c7628807df89e8 Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Tue, 30 Oct 2018 15:08:54 -0700 Subject: [PATCH] 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@linux.vnet.ibm.com Signed-off-by: Mike Rapoport Acked-by: Michal Hocko Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Kroah-Hartman Cc: Guan Xuetao Cc: Ingo Molnar Cc: "James E.J. Bottomley" Cc: Jonas Bonn Cc: Jonathan Corbet Cc: Ley Foon Tan Cc: Mark Salter Cc: Martin Schwidefsky Cc: Matt Turner Cc: Michael Ellerman Cc: Michal Simek Cc: Palmer Dabbelt Cc: Paul Burton Cc: Richard Kuo Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Serge Semin Cc: Thomas Gleixner Cc: Tony Luck Cc: Vineet Gupta Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- 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(-) diff --git a/arch/arc/mm/highmem.c b/arch/arc/mm/highmem.c index 77ff64a874a1..f582dc8944c9 100644 --- a/arch/arc/mm/highmem.c +++ b/arch/arc/mm/highmem.c @@ -123,7 +123,7 @@ static noinline pte_t * __init alloc_kmap_pgtable(unsigned long kvaddr) 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; } diff --git a/arch/m68k/atari/stram.c b/arch/m68k/atari/stram.c index c83d66442612..1089d67df315 100644 --- a/arch/m68k/atari/stram.c +++ b/arch/m68k/atari/stram.c @@ -95,7 +95,8 @@ void __init atari_stram_reserve_pages(void *start_mem) { 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; diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 4e17ecb5928a..8bcf57ec5127 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -55,7 +55,7 @@ static pte_t * __init kernel_page_table(void) { 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(void) 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); diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c index 236833be6fbe..c44c1a654471 100644 --- a/arch/mips/cavium-octeon/dma-octeon.c +++ b/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"); diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 15cae0f11880..842a49ef9909 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -243,7 +243,8 @@ void __init fixrange_init(unsigned long start, unsigned long end, 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)); } diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 3c0e470ea646..185f6bb79269 100644 --- a/arch/um/kernel/mem.c +++ b/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(pmd_t *pmd) 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( void) 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; diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c index 9d1ecfc53670..f33a1ff2662a 100644 --- a/arch/xtensa/mm/mmu.c +++ b/arch/xtensa/mm/mmu.c @@ -31,7 +31,7 @@ static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages) 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); -- 2.30.2