From: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx> Subject: memblock: replace alloc_bootmem_pages with memblock_alloc The alloc_bootmem_pages() function allocates PAGE_SIZE aligned memory. memblock_alloc() with alignment set to PAGE_SIZE does exactly the same thing. The conversion is done using the following semantic patch: @@ expression e; @@ - alloc_bootmem_pages(e) + memblock_alloc(e, PAGE_SIZE) Link: http://lkml.kernel.org/r/1536927045-23536-20-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/c6x/mm/init.c | 3 ++- arch/h8300/mm/init.c | 2 +- arch/m68k/mm/init.c | 2 +- arch/m68k/mm/mcfmmu.c | 4 ++-- arch/m68k/mm/motorola.c | 2 +- arch/m68k/mm/sun3mmu.c | 4 ++-- arch/sh/mm/init.c | 4 ++-- arch/x86/kernel/apic/io_apic.c | 3 ++- arch/x86/mm/init_64.c | 2 +- drivers/xen/swiotlb-xen.c | 3 ++- 10 files changed, 16 insertions(+), 13 deletions(-) --- a/arch/c6x/mm/init.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/c6x/mm/init.c @@ -38,7 +38,8 @@ void __init paging_init(void) struct pglist_data *pgdat = NODE_DATA(0); unsigned long zones_size[MAX_NR_ZONES] = {0, }; - empty_zero_page = (unsigned long) alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = (unsigned long) memblock_alloc(PAGE_SIZE, + PAGE_SIZE); memset((void *)empty_zero_page, 0, PAGE_SIZE); /* --- a/arch/h8300/mm/init.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/h8300/mm/init.c @@ -67,7 +67,7 @@ void __init paging_init(void) * Initialize the bad page table and bad page to point * to a couple of allocated pages. */ - empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = (unsigned long)memblock_alloc(PAGE_SIZE, PAGE_SIZE); memset((void *)empty_zero_page, 0, PAGE_SIZE); /* --- a/arch/m68k/mm/init.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/m68k/mm/init.c @@ -93,7 +93,7 @@ void __init paging_init(void) high_memory = (void *) end_mem; - empty_zero_page = alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE); /* * Set up SFC/DFC registers (user data space). --- a/arch/m68k/mm/mcfmmu.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/m68k/mm/mcfmmu.c @@ -44,7 +44,7 @@ void __init paging_init(void) enum zone_type zone; int i; - empty_zero_page = (void *) alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = (void *) memblock_alloc(PAGE_SIZE, PAGE_SIZE); memset((void *) empty_zero_page, 0, PAGE_SIZE); pg_dir = swapper_pg_dir; @@ -52,7 +52,7 @@ void __init paging_init(void) size = num_pages * sizeof(pte_t); size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1); - next_pgtable = (unsigned long) alloc_bootmem_pages(size); + next_pgtable = (unsigned long) memblock_alloc(size, PAGE_SIZE); bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK; pg_dir += PAGE_OFFSET >> PGDIR_SHIFT; --- a/arch/m68k/mm/motorola.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/m68k/mm/motorola.c @@ -276,7 +276,7 @@ void __init paging_init(void) * initialize the bad page table and bad page to point * to a couple of allocated pages */ - empty_zero_page = alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE); /* * Set up SFC/DFC registers --- a/arch/m68k/mm/sun3mmu.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/m68k/mm/sun3mmu.c @@ -45,7 +45,7 @@ void __init paging_init(void) unsigned long zones_size[MAX_NR_ZONES] = { 0, }; unsigned long size; - empty_zero_page = alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE); address = PAGE_OFFSET; pg_dir = swapper_pg_dir; @@ -55,7 +55,7 @@ void __init paging_init(void) size = num_pages * sizeof(pte_t); size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1); - next_pgtable = (unsigned long)alloc_bootmem_pages(size); + next_pgtable = (unsigned long)memblock_alloc(size, PAGE_SIZE); bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK; /* Map whole memory from PAGE_OFFSET (0x0E000000) */ --- a/arch/sh/mm/init.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/sh/mm/init.c @@ -128,7 +128,7 @@ static pmd_t * __init one_md_table_init( if (pud_none(*pud)) { pmd_t *pmd; - pmd = alloc_bootmem_pages(PAGE_SIZE); + pmd = memblock_alloc(PAGE_SIZE, PAGE_SIZE); pud_populate(&init_mm, pud, pmd); BUG_ON(pmd != pmd_offset(pud, 0)); } @@ -141,7 +141,7 @@ static pte_t * __init one_page_table_ini if (pmd_none(*pmd)) { pte_t *pte; - pte = alloc_bootmem_pages(PAGE_SIZE); + pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE); pmd_populate_kernel(&init_mm, pmd, pte); BUG_ON(pte != pte_offset_kernel(pmd, 0)); } --- a/arch/x86/kernel/apic/io_apic.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/x86/kernel/apic/io_apic.c @@ -2621,7 +2621,8 @@ void __init io_apic_init_mappings(void) #ifdef CONFIG_X86_32 fake_ioapic_page: #endif - ioapic_phys = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + ioapic_phys = (unsigned long)memblock_alloc(PAGE_SIZE, + PAGE_SIZE); ioapic_phys = __pa(ioapic_phys); } set_fixmap_nocache(idx, ioapic_phys); --- a/arch/x86/mm/init_64.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/arch/x86/mm/init_64.c @@ -197,7 +197,7 @@ static __ref void *spp_getpage(void) if (after_bootmem) ptr = (void *) get_zeroed_page(GFP_ATOMIC); else - ptr = alloc_bootmem_pages(PAGE_SIZE); + ptr = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!ptr || ((unsigned long)ptr & ~PAGE_MASK)) { panic("set_pte_phys: cannot allocate page data %s\n", --- a/drivers/xen/swiotlb-xen.c~memblock-replace-alloc_bootmem_pages-with-memblock_alloc +++ a/drivers/xen/swiotlb-xen.c @@ -217,7 +217,8 @@ retry: * Get IO TLB memory from any location. */ if (early) - xen_io_tlb_start = alloc_bootmem_pages(PAGE_ALIGN(bytes)); + xen_io_tlb_start = memblock_alloc(PAGE_ALIGN(bytes), + PAGE_SIZE); else { #define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT)) #define IO_TLB_MIN_SLABS ((1<<20) >> IO_TLB_SHIFT) _
