From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: + mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.patch added to -mm tree Date: Fri, 15 May 2020 14:15:39 -0700 Message-ID: <20200515211539.R1b61bzeQ%akpm@linux-foundation.org> References: <20200513175005.1f4839360c18c0238df292d1@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.99]:52656 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726183AbgEOVPo (ORCPT ); Fri, 15 May 2020 17:15:44 -0400 In-Reply-To: <20200513175005.1f4839360c18c0238df292d1@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: arnd@arndb.de, bcain@codeaurora.org, bp@alien8.de, catalin.marinas@arm.com, chris@zankel.net, dalias@libc.org, davem@davemloft.net, deanbo422@gmail.com, deller@gmx.de, geert@linux-m68k.org, gerg@linux-m68k.org, green.hu@gmail.com, guoren@kernel.org, gxt@pku.edu.cn, heiko.carstens@de.ibm.com, jcmvbkbc@gmail.com, ley.foon.tan@intel.com, linux@armlinux.org.uk, mattst88@gmail.com, mingo@redhat.com, mm-commits@vger.kernel.org, monstr@monstr.eu, mpe@ellerman.id.au, msalter@redhat.com, nickhu@andestech.com, paul.walmsley@sifive.com, richard@nod.at, rppt@linux.ibm.com, shorne@gmail.com, tglx@linutronix.de, tony.luck@intel.com, tsbogend@alpha.franken.de, vgupta@synopsys.com, will@kernel.org, willy@infradead.org, ysato@users.sourceforge.jp The patch titled Subject: mm: pgtable: add shortcuts for accessing kernel PMD and PTE has been added to the -mm tree. Its filename is mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** 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 Subject: mm: pgtable: add shortcuts for accessing kernel PMD and PTE The powerpc 32-bit implementation of pgtable has nice shortcuts for accessing kernel PMD and PTE for a given virtual address. Make this helpers available for all architectures. Link: http://lkml.kernel.org/r/20200514170327.31389-9-rppt@kernel.org Signed-off-by: Mike Rapoport Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Brian Cain Cc: Catalin Marinas Cc: Chris Zankel Cc: "David S. Miller" Cc: Geert Uytterhoeven Cc: Greentime Hu Cc: Greg Ungerer Cc: Guan Xuetao Cc: Guo Ren Cc: Heiko Carstens Cc: Helge Deller Cc: Ingo Molnar Cc: Ley Foon Tan Cc: Mark Salter Cc: Matthew Wilcox Cc: Matt Turner Cc: Max Filippov Cc: Michael Ellerman Cc: Michal Simek Cc: Nick Hu Cc: Paul Walmsley Cc: Richard Weinberger Cc: Rich Felker Cc: Russell King Cc: Stafford Horne Cc: Thomas Bogendoerfer Cc: Thomas Gleixner Cc: Tony Luck Cc: Vincent Chen Cc: Vineet Gupta Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton --- arch/arc/mm/highmem.c | 10 ------- arch/arm/mach-sa1100/assabet.c | 2 - arch/arm/mm/highmem.c | 4 +- arch/arm/mm/ioremap.c | 31 ++------------------- arch/arm/mm/mm.h | 5 --- arch/arm/mm/mmu.c | 7 ---- arch/hexagon/include/asm/fixmap.h | 4 -- arch/m68k/mm/motorola.c | 22 +-------------- arch/microblaze/kernel/signal.c | 8 ----- arch/microblaze/mm/init.c | 9 ------ arch/mips/include/asm/fixmap.h | 3 -- arch/mips/mm/c-r3k.c | 10 +------ arch/mips/mm/c-r4k.c | 10 +------ arch/mips/mm/c-tx39.c | 10 +------ arch/mips/mm/highmem.c | 2 - arch/nds32/include/asm/pgtable.h | 2 - arch/nds32/mm/init.c | 13 +-------- arch/nds32/mm/proc.c | 6 ---- arch/parisc/mm/fixmap.c | 6 ---- arch/powerpc/include/asm/pgtable.h | 19 ------------- arch/powerpc/mm/book3s32/mmu.c | 2 - arch/powerpc/mm/book3s32/tlb.c | 4 +- arch/powerpc/mm/kasan/kasan_init_32.c | 8 ++--- arch/powerpc/mm/nohash/40x.c | 4 +- arch/powerpc/mm/pgtable_32.c | 2 - arch/s390/mm/pageattr.c | 10 ------- arch/sh/mm/cache-sh4.c | 8 ----- arch/sh/mm/kmap.c | 5 --- arch/sparc/mm/highmem.c | 12 +------- arch/sparc/mm/init_64.c | 6 ---- arch/sparc/mm/io-unit.c | 10 +------ arch/sparc/mm/iommu.c | 8 ----- arch/sparc/mm/srmmu.c | 34 ++---------------------- arch/um/kernel/mem.c | 10 ------- arch/um/kernel/trap.c | 8 ----- arch/unicore32/mm/mm.h | 10 ------- arch/x86/mm/init_32.c | 26 ++---------------- arch/xtensa/include/asm/fixmap.h | 8 ----- arch/xtensa/mm/highmem.c | 2 - arch/xtensa/mm/kasan_init.c | 10 +------ arch/xtensa/mm/mmu.c | 5 --- include/linux/pgtable.h | 24 ++++++++++++++++ 42 files changed, 78 insertions(+), 321 deletions(-) --- a/arch/arc/mm/highmem.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/arc/mm/highmem.c @@ -92,17 +92,9 @@ EXPORT_SYMBOL(kunmap_atomic_high); static noinline pte_t * __init alloc_kmap_pgtable(unsigned long kvaddr) { - pgd_t *pgd_k; - p4d_t *p4d_k; - pud_t *pud_k; - pmd_t *pmd_k; + pmd_t *pmd_k = pmd_off_k(kvaddr); pte_t *pte_k; - pgd_k = pgd_offset_k(kvaddr); - p4d_k = p4d_offset(pgd_k, kvaddr); - pud_k = pud_offset(p4d_k, kvaddr); - pmd_k = pmd_offset(pud_k, kvaddr); - pte_k = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); if (!pte_k) panic("%s: Failed to allocate %lu bytes align=0x%lx\n", --- a/arch/arm/mach-sa1100/assabet.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/arm/mach-sa1100/assabet.c @@ -632,7 +632,7 @@ static void __init map_sa1100_gpio_regs( int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO); pmd_t *pmd; - pmd = pmd_offset(pud_offset(p4d_offset(pgd_offset_k(virt), virt), virt), virt); + pmd = pmd_off_k(virt); *pmd = __pmd(phys | prot); flush_pmd_entry(pmd); } --- a/arch/arm/mm/highmem.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/arm/mm/highmem.c @@ -18,7 +18,7 @@ static inline void set_fixmap_pte(int idx, pte_t pte) { unsigned long vaddr = __fix_to_virt(idx); - pte_t *ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr); + pte_t *ptep = virt_to_kpte(vaddr); set_pte_ext(ptep, pte, 0); local_flush_tlb_kernel_page(vaddr); @@ -26,7 +26,7 @@ static inline void set_fixmap_pte(int id static inline pte_t get_fixmap_pte(unsigned long vaddr) { - pte_t *ptep = pte_offset_kernel(pmd_off_k(vaddr), vaddr); + pte_t *ptep = virt_to_kpte(vaddr); return *ptep; } --- a/arch/arm/mm/ioremap.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/arm/mm/ioremap.c @@ -141,16 +141,8 @@ void __check_vmalloc_seq(struct mm_struc static void unmap_area_sections(unsigned long virt, unsigned long size) { unsigned long addr = virt, end = virt + (size & ~(SZ_1M - 1)); - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmdp; - - flush_cache_vunmap(addr, end); - pgd = pgd_offset_k(addr); - p4d = p4d_offset(pgd, addr); - pud = pud_offset(p4d, addr); - pmdp = pmd_offset(pud, addr); + pmd_t *pmdp = pmd_off_k(addr); + do { pmd_t pmd = *pmdp; @@ -191,10 +183,7 @@ remap_area_sections(unsigned long virt, size_t size, const struct mem_type *type) { unsigned long addr = virt, end = virt + size; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; + pmd_t *pmd = pmd_off_k(addr); /* * Remove and free any PTE-based mapping, and @@ -202,10 +191,6 @@ remap_area_sections(unsigned long virt, */ unmap_area_sections(virt, size); - pgd = pgd_offset_k(addr); - p4d = p4d_offset(pgd, addr); - pud = pud_offset(p4d, addr); - pmd = pmd_offset(pud, addr); do { pmd[0] = __pmd(__pfn_to_phys(pfn) | type->prot_sect); pfn += SZ_1M >> PAGE_SHIFT; @@ -225,21 +210,13 @@ remap_area_supersections(unsigned long v size_t size, const struct mem_type *type) { unsigned long addr = virt, end = virt + size; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; + pmd_t *pmd = pmd_off_k(addr); /* * Remove and free any PTE-based mapping, and * sync the current kernel mapping. */ unmap_area_sections(virt, size); - - pgd = pgd_offset_k(virt); - p4d = p4d_offset(pgd, addr); - pud = pud_offset(p4d, addr); - pmd = pmd_offset(pud, addr); do { unsigned long super_pmd_val, i; --- a/arch/arm/mm/mm.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/arm/mm/mm.h @@ -35,11 +35,6 @@ static inline pte_t get_top_pte(unsigned return *ptep; } -static inline pmd_t *pmd_off_k(unsigned long virt) -{ - return pmd_offset(pud_offset(p4d_offset(pgd_offset_k(virt), virt), virt), virt); -} - struct mem_type { pteval_t prot_pte; pteval_t prot_pte_s2; --- a/arch/arm/mm/mmu.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/arm/mm/mmu.c @@ -356,12 +356,7 @@ static pte_t *pte_offset_late_fixmap(pmd static inline pmd_t * __init fixmap_pmd(unsigned long addr) { - pgd_t *pgd = pgd_offset_k(addr); - p4d_t *p4d = p4d_offset(pgd, addr); - pud_t *pud = pud_offset(p4d, addr); - pmd_t *pmd = pmd_offset(pud, addr); - - return pmd; + return pmd_off_k(addr); } void __init early_fixmap_init(void) --- a/arch/hexagon/include/asm/fixmap.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/hexagon/include/asm/fixmap.h @@ -15,8 +15,4 @@ #include -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel(pmd_offset(pud_offset(p4d_offset(pgd_offset_k(vaddr), \ - (vaddr)), (vaddr)), (vaddr)), (vaddr)) - #endif --- a/arch/m68k/mm/motorola.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/m68k/mm/motorola.c @@ -54,17 +54,8 @@ static inline void nocache_page(void *va unsigned long addr = (unsigned long)vaddr; if (CPU_IS_040_OR_060) { - pgd_t *dir; - p4d_t *p4dp; - pud_t *pudp; - pmd_t *pmdp; - pte_t *ptep; + pte_t *ptep = virt_to_kpte(addr); - dir = pgd_offset_k(addr); - p4dp = p4d_offset(dir, addr); - pudp = pud_offset(p4dp, addr); - pmdp = pmd_offset(pudp, addr); - ptep = pte_offset_kernel(pmdp, addr); *ptep = pte_mknocache(*ptep); } } @@ -74,17 +65,8 @@ static inline void cache_page(void *vadd unsigned long addr = (unsigned long)vaddr; if (CPU_IS_040_OR_060) { - pgd_t *dir; - p4d_t *p4dp; - pud_t *pudp; - pmd_t *pmdp; - pte_t *ptep; + pte_t *ptep = virt_to_kpte(addr); - dir = pgd_offset_k(addr); - p4dp = p4d_offset(dir, addr); - pudp = pud_offset(p4dp, addr); - pmdp = pmd_offset(pudp, addr); - ptep = pte_offset_kernel(pmdp, addr); *ptep = pte_mkcache(*ptep); } } --- a/arch/microblaze/kernel/signal.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/microblaze/kernel/signal.c @@ -159,9 +159,6 @@ static int setup_rt_frame(struct ksignal int err = 0, sig = ksig->sig; unsigned long address = 0; #ifdef CONFIG_MMU - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; pmd_t *pmdp; pte_t *ptep; #endif @@ -197,10 +194,7 @@ static int setup_rt_frame(struct ksignal address = ((unsigned long)frame->tramp); #ifdef CONFIG_MMU - pgdp = pgd_offset(current->mm, address); - p4dp = p4d_offset(pgdp, address); - pudp = pud_offset(p4dp, address); - pmdp = pmd_offset(pudp, address); + pmdp = pmd_off_k(address); preempt_disable(); ptep = pte_offset_map(pmdp, address); --- a/arch/microblaze/mm/init.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/microblaze/mm/init.c @@ -50,15 +50,6 @@ unsigned long lowmem_size; pte_t *kmap_pte; EXPORT_SYMBOL(kmap_pte); -static inline pte_t *virt_to_kpte(unsigned long vaddr) -{ - pgd_t *pgd = pgd_offset_k(vaddr); - p4d_t *p4d = p4d_offset(pgd, vaddr); - pud_t *pud = pud_offset(p4d, vaddr); - - return pte_offset_kernel(pmd_offset(pud, vaddr), vaddr); -} - static void __init highmem_init(void) { pr_debug("%x\n", (u32)PKMAP_BASE); --- a/arch/mips/include/asm/fixmap.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/mips/include/asm/fixmap.h @@ -69,9 +69,6 @@ enum fixed_addresses { #include -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel(pmd_offset(pud_offset(p4d_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr)), (vaddr)) - /* * Called from pgtable_init() */ --- a/arch/mips/mm/c-r3k.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/mips/mm/c-r3k.c @@ -239,9 +239,6 @@ static void r3k_flush_cache_page(struct unsigned long kaddr = KSEG0ADDR(pfn << PAGE_SHIFT); int exec = vma->vm_flags & VM_EXEC; struct mm_struct *mm = vma->vm_mm; - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -252,11 +249,8 @@ static void r3k_flush_cache_page(struct if (cpu_context(smp_processor_id(), mm) == 0) return; - pgdp = pgd_offset(mm, addr); - p4dp = p4d_offset(pgdp, addr); - pudp = pud_offset(p4dp, addr); - pmdp = pmd_offset(pudp, addr); - ptep = pte_offset(pmdp, addr); + pmdp = pmd_off(mm, addr); + ptep = pte_offset_kernel(pmdp, addr); /* Invalid => no such page in the cache. */ if (!(pte_val(*ptep) & _PAGE_PRESENT)) --- a/arch/mips/mm/c-r4k.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/mips/mm/c-r4k.c @@ -652,9 +652,6 @@ static inline void local_r4k_flush_cache int exec = vma->vm_flags & VM_EXEC; struct mm_struct *mm = vma->vm_mm; int map_coherent = 0; - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; pmd_t *pmdp; pte_t *ptep; void *vaddr; @@ -667,11 +664,8 @@ static inline void local_r4k_flush_cache return; addr &= PAGE_MASK; - pgdp = pgd_offset(mm, addr); - p4dp = p4d_offset(pgdp, addr); - pudp = pud_offset(p4dp, addr); - pmdp = pmd_offset(pudp, addr); - ptep = pte_offset(pmdp, addr); + pmdp = pmd_off(mm, addr); + ptep = pte_offset_kernel(pmdp, addr); /* * If the page isn't marked valid, the page cannot possibly be --- a/arch/mips/mm/c-tx39.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/mips/mm/c-tx39.c @@ -168,9 +168,6 @@ static void tx39_flush_cache_page(struct { int exec = vma->vm_flags & VM_EXEC; struct mm_struct *mm = vma->vm_mm; - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -182,11 +179,8 @@ static void tx39_flush_cache_page(struct return; page &= PAGE_MASK; - pgdp = pgd_offset(mm, page); - p4dp = p4d_offset(pgdp, page); - pudp = pud_offset(p4dp, page); - pmdp = pmd_offset(pudp, page); - ptep = pte_offset(pmdp, page); + pmdp = pmd_off(mm, page); + ptep = pte_offset_kernel(pmdp, page); /* * If the page isn't marked valid, the page cannot possibly be --- a/arch/mips/mm/highmem.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/mips/mm/highmem.c @@ -93,5 +93,5 @@ void __init kmap_init(void) /* cache the first kmap pte */ kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN); - kmap_pte = kmap_get_fixmap_pte(kmap_vstart); + kmap_pte = virt_to_kpte(kmap_vstart); } --- a/arch/nds32/include/asm/pgtable.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/nds32/include/asm/pgtable.h @@ -195,8 +195,6 @@ extern void paging_init(void); #define pte_unmap(pte) do { } while (0) #define pte_unmap_nested(pte) do { } while (0) -#define pmd_off_k(address) pmd_offset(pud_offset(p4d_offset(pgd_offset_k(address), (address)), (address)), (address)) - #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) /* * Set a level 1 translation table entry, and clean it out of --- a/arch/nds32/mm/init.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/nds32/mm/init.c @@ -98,9 +98,6 @@ static pmd_t *fixmap_pmd_p; static void __init fixedrange_init(void) { unsigned long vaddr; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; pmd_t *pmd; #ifdef CONFIG_HIGHMEM pte_t *pte; @@ -110,10 +107,7 @@ static void __init fixedrange_init(void) * Fixed mappings: */ vaddr = __fix_to_virt(__end_of_fixed_addresses - 1); - pgd = swapper_pg_dir + pgd_index(vaddr); - p4d = p4d_offset(pgd, vaddr); - pud = pud_offset(p4d, vaddr); - pmd = pmd_offset(pud, vaddr); + pmd = pmd_off_k(vaddr); fixmap_pmd_p = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!fixmap_pmd_p) panic("%s: Failed to allocate %lu bytes align=0x%lx\n", @@ -126,10 +120,7 @@ static void __init fixedrange_init(void) */ vaddr = PKMAP_BASE; - pgd = swapper_pg_dir + pgd_index(vaddr); - p4d = p4d_offset(pgd, vaddr); - pud = pud_offset(p4d, vaddr); - pmd = pmd_offset(pud, vaddr); + pmd = pmd_off_k(vaddr); pte = memblock_alloc(PAGE_SIZE, PAGE_SIZE); if (!pte) panic("%s: Failed to allocate %lu bytes align=0x%lx\n", --- a/arch/nds32/mm/proc.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/nds32/mm/proc.c @@ -15,14 +15,10 @@ extern struct cache_info L1_cache_info[2 int va_kernel_present(unsigned long addr) { - p4d_t *p4d; - pud_t *pud; pmd_t *pmd; pte_t *ptep, pte; - p4d = p4d_offset(pgd_offset_k(addr), addr); - pud = pud_offset(p4d, addr); - pmd = pmd_offset(pud, addr); + pmd = pmd_off_k(addr); if (!pmd_none(*pmd)) { ptep = pte_offset_map(pmd, addr); pte = *ptep; --- a/arch/parisc/mm/fixmap.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/parisc/mm/fixmap.c @@ -33,11 +33,7 @@ void notrace set_fixmap(enum fixed_addre void notrace clear_fixmap(enum fixed_addresses idx) { unsigned long vaddr = __fix_to_virt(idx); - pgd_t *pgd = pgd_offset_k(vaddr); - p4d_t *p4d = p4d_offset(pgd, vaddr); - pud_t *pud = pud_offset(p4d, vaddr); - pmd_t *pmd = pmd_offset(pud, vaddr); - pte_t *pte = pte_offset_kernel(pmd, vaddr); + pte_t *pte = virt_to_kpte(vaddr); if (WARN_ON(pte_none(*pte))) return; --- a/arch/powerpc/include/asm/pgtable.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/powerpc/include/asm/pgtable.h @@ -41,25 +41,6 @@ struct mm_struct; #ifndef __ASSEMBLY__ -#ifdef CONFIG_PPC32 -static inline pmd_t *pmd_ptr(struct mm_struct *mm, unsigned long va) -{ - return pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, va), va), va), va); -} - -static inline pmd_t *pmd_ptr_k(unsigned long va) -{ - return pmd_offset(pud_offset(p4d_offset(pgd_offset_k(va), va), va), va); -} - -static inline pte_t *virt_to_kpte(unsigned long vaddr) -{ - pmd_t *pmd = pmd_ptr_k(vaddr); - - return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr); -} -#endif - #include /* Keep these as a macros to avoid include dependency mess */ --- a/arch/powerpc/mm/book3s32/mmu.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/powerpc/mm/book3s32/mmu.c @@ -312,7 +312,7 @@ void hash_preload(struct mm_struct *mm, if (!Hash) return; - pmd = pmd_ptr(mm, ea); + pmd = pmd_off(mm, ea); if (!pmd_none(*pmd)) add_hash_page(mm->context.id, ea, pmd_val(*pmd)); } --- a/arch/powerpc/mm/book3s32/tlb.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/powerpc/mm/book3s32/tlb.c @@ -90,7 +90,7 @@ static void flush_range(struct mm_struct if (start >= end) return; end = (end - 1) | ~PAGE_MASK; - pmd = pmd_ptr(mm, start); + pmd = pmd_off(mm, start); for (;;) { pmd_end = ((start + PGDIR_SIZE) & PGDIR_MASK) - 1; if (pmd_end > end) @@ -148,7 +148,7 @@ void flush_tlb_page(struct vm_area_struc return; } mm = (vmaddr < TASK_SIZE)? vma->vm_mm: &init_mm; - pmd = pmd_ptr(mm, vmaddr); + pmd = pmd_off(mm, vmaddr); if (!pmd_none(*pmd)) flush_hash_pages(mm->context.id, vmaddr, pmd_val(*pmd), 1); } --- a/arch/powerpc/mm/kasan/kasan_init_32.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/powerpc/mm/kasan/kasan_init_32.c @@ -36,7 +36,7 @@ static int __init kasan_init_shadow_page unsigned long k_cur, k_next; pte_t *new = NULL; - pmd = pmd_ptr_k(k_start); + pmd = pmd_off_k(k_start); for (k_cur = k_start; k_cur != k_end; k_cur = k_next, pmd++) { k_next = pgd_addr_end(k_cur, k_end); @@ -78,7 +78,7 @@ static int __init kasan_init_region(void block = memblock_alloc(k_end - k_start, PAGE_SIZE); for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { - pmd_t *pmd = pmd_ptr_k(k_cur); + pmd_t *pmd = pmd_off_k(k_cur); void *va = block + k_cur - k_start; pte_t pte = pfn_pte(PHYS_PFN(__pa(va)), PAGE_KERNEL); @@ -102,7 +102,7 @@ static void __init kasan_remap_early_sha kasan_populate_pte(kasan_early_shadow_pte, prot); for (k_cur = k_start & PAGE_MASK; k_cur != k_end; k_cur += PAGE_SIZE) { - pmd_t *pmd = pmd_ptr_k(k_cur); + pmd_t *pmd = pmd_off_k(k_cur); pte_t *ptep = pte_offset_kernel(pmd, k_cur); if ((pte_val(*ptep) & PTE_RPN_MASK) != pa) @@ -196,7 +196,7 @@ void __init kasan_early_init(void) unsigned long addr = KASAN_SHADOW_START; unsigned long end = KASAN_SHADOW_END; unsigned long next; - pmd_t *pmd = pmd_ptr_k(addr); + pmd_t *pmd = pmd_off_k(addr); BUILD_BUG_ON(KASAN_SHADOW_START & ~PGDIR_MASK); --- a/arch/powerpc/mm/nohash/40x.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/powerpc/mm/nohash/40x.c @@ -103,7 +103,7 @@ unsigned long __init mmu_mapin_ram(unsig pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_16M | _PAGE_EXEC | _PAGE_HWWRITE; - pmdp = pmd_ptr_k(v); + pmdp = pmd_off_k(v); *pmdp++ = __pmd(val); *pmdp++ = __pmd(val); *pmdp++ = __pmd(val); @@ -118,7 +118,7 @@ unsigned long __init mmu_mapin_ram(unsig pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_4M | _PAGE_EXEC | _PAGE_HWWRITE; - pmdp = pmd_ptr_k(v); + pmdp = pmd_off_k(v); *pmdp = __pmd(val); v += LARGE_PAGE_SIZE_4M; --- a/arch/powerpc/mm/pgtable_32.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/powerpc/mm/pgtable_32.c @@ -62,7 +62,7 @@ int __ref map_kernel_page(unsigned long int err = -ENOMEM; /* Use upper 10 bits of VA to index the first level map */ - pd = pmd_ptr_k(va); + pd = pmd_off_k(va); /* Use middle 10 bits of VA to index the second-level map */ if (likely(slab_is_available())) pg = pte_alloc_kernel(pd, va); --- a/arch/s390/mm/pageattr.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/s390/mm/pageattr.c @@ -337,19 +337,11 @@ void __kernel_map_pages(struct page *pag { unsigned long address; int nr, i, j; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; pte_t *pte; for (i = 0; i < numpages;) { address = page_to_phys(page + i); - pgd = pgd_offset_k(address); - p4d = p4d_offset(pgd, address); - pud = pud_offset(p4d, address); - pmd = pmd_offset(pud, address); - pte = pte_offset_kernel(pmd, address); + pte = virt_to_kpte(address); nr = (unsigned long)pte >> ilog2(sizeof(long)); nr = PTRS_PER_PTE - (nr & (PTRS_PER_PTE - 1)); nr = min(numpages - i, nr); --- a/arch/sh/mm/cache-sh4.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sh/mm/cache-sh4.c @@ -207,9 +207,6 @@ static void sh4_flush_cache_page(void *a struct page *page; unsigned long address, pfn, phys; int map_coherent = 0; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; pmd_t *pmd; pte_t *pte; void *vaddr; @@ -223,10 +220,7 @@ static void sh4_flush_cache_page(void *a if (cpu_context(smp_processor_id(), vma->vm_mm) == NO_CONTEXT) return; - pgd = pgd_offset(vma->vm_mm, address); - p4d = p4d_offset(pgd, address); - pud = pud_offset(p4d, address); - pmd = pmd_offset(pud, address); + pmd = pmd_off(vma->vm_mm, address); pte = pte_offset_kernel(pmd, address); /* If the page isn't present, there is nothing to do here. */ --- a/arch/sh/mm/kmap.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sh/mm/kmap.c @@ -14,9 +14,6 @@ #include #include -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel(pmd_offset(pud_offset(p4d_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr)), vaddr) - static pte_t *kmap_coherent_pte; void __init kmap_coherent_init(void) @@ -25,7 +22,7 @@ void __init kmap_coherent_init(void) /* cache the first coherent kmap pte */ vaddr = __fix_to_virt(FIX_CMAP_BEGIN); - kmap_coherent_pte = kmap_get_fixmap_pte(vaddr); + kmap_coherent_pte = virt_to_kpte(vaddr); } void *kmap_coherent(struct page *page, unsigned long addr) --- a/arch/sparc/mm/highmem.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sparc/mm/highmem.c @@ -36,18 +36,10 @@ static pte_t *kmap_pte; void __init kmap_init(void) { - unsigned long address; - p4d_t *p4d; - pud_t *pud; - pmd_t *dir; - - address = __fix_to_virt(FIX_KMAP_BEGIN); - p4d = p4d_offset(pgd_offset_k(address), address); - pud = pud_offset(p4d, address); - dir = pmd_offset(pud, address); + unsigned long address = __fix_to_virt(FIX_KMAP_BEGIN); /* cache the first kmap pte */ - kmap_pte = pte_offset_kernel(dir, address); + kmap_pte = virt_to_kpte(address); } void *kmap_atomic_high_prot(struct page *page, pgprot_t prot) --- a/arch/sparc/mm/init_64.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sparc/mm/init_64.c @@ -503,11 +503,7 @@ void __kprobes flush_icache_range(unsign if (kaddr >= PAGE_OFFSET) paddr = kaddr & mask; else { - pgd_t *pgdp = pgd_offset_k(kaddr); - p4d_t *p4dp = p4d_offset(pgdp, kaddr); - pud_t *pudp = pud_offset(p4dp, kaddr); - pmd_t *pmdp = pmd_offset(pudp, kaddr); - pte_t *ptep = pte_offset_kernel(pmdp, kaddr); + pte_t *ptep = virt_to_kpte(kaddr); paddr = pte_val(*ptep) & mask; } --- a/arch/sparc/mm/iommu.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sparc/mm/iommu.c @@ -348,9 +348,6 @@ static void *sbus_iommu_alloc(struct dev while(addr < end) { page = va; { - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; pmd_t *pmdp; pte_t *ptep; @@ -361,10 +358,7 @@ static void *sbus_iommu_alloc(struct dev else __flush_page_to_ram(page); - pgdp = pgd_offset(&init_mm, addr); - p4dp = p4d_offset(pgdp, addr); - pudp = pud_offset(p4dp, addr); - pmdp = pmd_offset(pudp, addr); + pmdp = pmd_off_k(addr); ptep = pte_offset_map(pmdp, addr); set_pte(ptep, mk_pte(virt_to_page(page), dvma_prot)); --- a/arch/sparc/mm/io-unit.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sparc/mm/io-unit.c @@ -240,21 +240,15 @@ static void *iounit_alloc(struct device while(addr < end) { page = va; { - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; pmd_t *pmdp; pte_t *ptep; long i; - pgdp = pgd_offset(&init_mm, addr); - p4dp = p4d_offset(pgdp, addr); - pudp = pud_offset(p4dp, addr); - pmdp = pmd_offset(pudp, addr); + pmdp = pmd_off_k(addr); ptep = pte_offset_map(pmdp, addr); set_pte(ptep, mk_pte(virt_to_page(page), dvma_prot)); - + i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT); iopte = iounit->page_table + i; --- a/arch/sparc/mm/srmmu.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/sparc/mm/srmmu.c @@ -495,19 +495,10 @@ void switch_mm(struct mm_struct *old_mm, static inline void srmmu_mapioaddr(unsigned long physaddr, unsigned long virt_addr, int bus_type) { - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; - pmd_t *pmdp; - pte_t *ptep; + pte_t *ptep = virt_to_kpte(virt_addr); unsigned long tmp; physaddr &= PAGE_MASK; - pgdp = pgd_offset_k(virt_addr); - p4dp = p4d_offset(pgdp, virt_addr); - pudp = pud_offset(p4dp, virt_addr); - pmdp = pmd_offset(pudp, virt_addr); - ptep = pte_offset_kernel(pmdp, virt_addr); tmp = (physaddr >> 4) | SRMMU_ET_PTE; /* I need to test whether this is consistent over all @@ -534,18 +525,7 @@ void srmmu_mapiorange(unsigned int bus, static inline void srmmu_unmapioaddr(unsigned long virt_addr) { - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; - pmd_t *pmdp; - pte_t *ptep; - - - pgdp = pgd_offset_k(virt_addr); - p4dp = p4d_offset(pgdp, virt_addr); - pudp = pud_offset(p4dp, virt_addr); - pmdp = pmd_offset(pudp, virt_addr); - ptep = pte_offset_kernel(pmdp, virt_addr); + pte_t *ptep = virt_to_kpte(virt_addr); /* No need to flush uncacheable page. */ __pte_clear(ptep); @@ -898,10 +878,6 @@ void __init srmmu_paging_init(void) int i; phandle cpunode; char node_str[128]; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; pte_t *pte; unsigned long pages_avail; @@ -961,11 +937,7 @@ void __init srmmu_paging_init(void) __fix_to_virt(__end_of_fixed_addresses - 1), FIXADDR_TOP); srmmu_allocate_ptable_skeleton(PKMAP_BASE, PKMAP_END); - pgd = pgd_offset_k(PKMAP_BASE); - p4d = p4d_offset(pgd, PKMAP_BASE); - pud = pud_offset(p4d, PKMAP_BASE); - pmd = pmd_offset(pud, PKMAP_BASE); - pte = pte_offset_kernel(pmd, PKMAP_BASE); + pte = virt_to_kpte(PKMAP_BASE); pkmap_page_table = pte; flush_cache_all(); --- a/arch/um/kernel/mem.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/um/kernel/mem.c @@ -125,10 +125,6 @@ static void __init fixaddr_user_init( vo { #ifdef CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA long size = FIXADDR_USER_END - FIXADDR_USER_START; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; pte_t *pte; phys_t p; unsigned long v, vaddr = FIXADDR_USER_START; @@ -146,11 +142,7 @@ static void __init fixaddr_user_init( vo p = __pa(v); for ( ; size > 0; size -= PAGE_SIZE, vaddr += PAGE_SIZE, p += PAGE_SIZE) { - pgd = swapper_pg_dir + pgd_index(vaddr); - p4d = p4d_offset(pgd, vaddr); - pud = pud_offset(p4d, vaddr); - pmd = pmd_offset(pud, vaddr); - pte = pte_offset_kernel(pmd, vaddr); + pte = virt_to_kpte(vaddr); pte_set_val(*pte, p, PAGE_READONLY); } #endif --- a/arch/um/kernel/trap.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/um/kernel/trap.c @@ -26,9 +26,6 @@ int handle_page_fault(unsigned long addr { struct mm_struct *mm = current->mm; struct vm_area_struct *vma; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; pmd_t *pmd; pte_t *pte; int err = -EFAULT; @@ -102,10 +99,7 @@ good_area: } } - pgd = pgd_offset(mm, address); - p4d = p4d_offset(pgd, address); - pud = pud_offset(p4d, address); - pmd = pmd_offset(pud, address); + pmd = pmd_off(mm, address); pte = pte_offset_kernel(pmd, address); } while (!pte_present(*pte)); err = 0; --- a/arch/unicore32/mm/mm.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/unicore32/mm/mm.h @@ -14,16 +14,6 @@ extern int sysctl_overcommit_memory; #define TOP_PTE(x) pte_offset_kernel(top_pmd, x) -static inline pmd_t *pmd_off(pgd_t *pgd, unsigned long virt) -{ - return pmd_offset((pud_t *)pgd, virt); -} - -static inline pmd_t *pmd_off_k(unsigned long virt) -{ - return pmd_off(pgd_offset_k(virt), virt); -} - struct mem_type { unsigned int prot_pte; unsigned int prot_l1; --- a/arch/x86/mm/init_32.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/x86/mm/init_32.c @@ -395,15 +395,6 @@ repeat: pte_t *kmap_pte; -static inline pte_t *kmap_get_fixmap_pte(unsigned long vaddr) -{ - pgd_t *pgd = pgd_offset_k(vaddr); - p4d_t *p4d = p4d_offset(pgd, vaddr); - pud_t *pud = pud_offset(p4d, vaddr); - pmd_t *pmd = pmd_offset(pud, vaddr); - return pte_offset_kernel(pmd, vaddr); -} - static void __init kmap_init(void) { unsigned long kmap_vstart; @@ -412,28 +403,17 @@ static void __init kmap_init(void) * Cache the first kmap pte: */ kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN); - kmap_pte = kmap_get_fixmap_pte(kmap_vstart); + kmap_pte = virt_to_kpte(kmap_vstart); } #ifdef CONFIG_HIGHMEM static void __init permanent_kmaps_init(pgd_t *pgd_base) { - unsigned long vaddr; - pgd_t *pgd; - p4d_t *p4d; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; + unsigned long vaddr = PKMAP_BASE; - vaddr = PKMAP_BASE; page_table_range_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base); - pgd = swapper_pg_dir + pgd_index(vaddr); - p4d = p4d_offset(pgd, vaddr); - pud = pud_offset(p4d, vaddr); - pmd = pmd_offset(pud, vaddr); - pte = pte_offset_kernel(pmd, vaddr); - pkmap_page_table = pte; + pkmap_page_table = virt_to_kpte(vaddr); } void __init add_highpages_with_active_regions(int nid, --- a/arch/xtensa/include/asm/fixmap.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/xtensa/include/asm/fixmap.h @@ -76,12 +76,4 @@ static inline unsigned long virt_to_fix( #endif -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel( \ - pmd_offset(pud_offset(p4d_offset(pgd_offset_k(vaddr), \ - (vaddr)), \ - (vaddr)), \ - (vaddr)), \ - (vaddr)) - #endif --- a/arch/xtensa/mm/highmem.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/xtensa/mm/highmem.c @@ -86,6 +86,6 @@ void __init kmap_init(void) BUILD_BUG_ON(PKMAP_BASE < TLBTEMP_BASE_1 + TLBTEMP_SIZE); /* cache the first kmap pte */ kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN); - kmap_pte = kmap_get_fixmap_pte(kmap_vstart); + kmap_pte = virt_to_kpte(kmap_vstart); kmap_waitqueues_init(); } --- a/arch/xtensa/mm/kasan_init.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/xtensa/mm/kasan_init.c @@ -19,10 +19,7 @@ void __init kasan_early_init(void) { unsigned long vaddr = KASAN_SHADOW_START; - pgd_t *pgd = pgd_offset_k(vaddr); - p4d_t *p4d = p4d_offset(pgd, vaddr); - pud_t *pud = pud_offset(p4d, vaddr); - pmd_t *pmd = pmd_offset(pud, vaddr); + pmd_t *pmd = pmd_off_k(vaddr); int i; for (i = 0; i < PTRS_PER_PTE; ++i) @@ -43,10 +40,7 @@ static void __init populate(void *start, unsigned long n_pmds = n_pages / PTRS_PER_PTE; unsigned long i, j; unsigned long vaddr = (unsigned long)start; - pgd_t *pgd = pgd_offset_k(vaddr); - p4d_t *p4d = p4d_offset(pgd, vaddr); - pud_t *pud = pud_offset(p4d, vaddr); - pmd_t *pmd = pmd_offset(pud, vaddr); + pmd_t *pmd = pmd_off_k(vaddr); pte_t *pte = memblock_alloc(n_pages * sizeof(pte_t), PAGE_SIZE); if (!pte) --- a/arch/xtensa/mm/mmu.c~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/arch/xtensa/mm/mmu.c @@ -21,10 +21,7 @@ #if defined(CONFIG_HIGHMEM) static void * __init init_pmd(unsigned long vaddr, unsigned long n_pages) { - pgd_t *pgd = pgd_offset_k(vaddr); - p4d_t *p4d = p4d_offset(pgd, vaddr); - pud_t *pud = pud_offset(p4d, vaddr); - pmd_t *pmd = pmd_offset(pud, vaddr); + pmd_t *pmd = pmd_off_k(vaddr); pte_t *pte; unsigned long i; --- a/include/linux/pgtable.h~mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte +++ a/include/linux/pgtable.h @@ -28,6 +28,30 @@ #define USER_PGTABLES_CEILING 0UL #endif +/* + * In many cases it is known that a virtual address is mapped at PMD or PTE + * level, so instead of traversing all the page table levels, we can get a + * pointer to the PMD entry in user or kernel page table or translate a virtual + * address to the pointer in the PTE in the kernel page tables with simple + * helpers. + */ +static inline pmd_t *pmd_off(struct mm_struct *mm, unsigned long va) +{ + return pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, va), va), va), va); +} + +static inline pmd_t *pmd_off_k(unsigned long va) +{ + return pmd_offset(pud_offset(p4d_offset(pgd_offset_k(va), va), va), va); +} + +static inline pte_t *virt_to_kpte(unsigned long vaddr) +{ + pmd_t *pmd = pmd_off_k(vaddr); + + return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr); +} + #ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS extern int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address, pte_t *ptep, _ Patches currently in -mm which might be from rppt@linux.ibm.com are mm-memblock-replace-dereferences-of-memblock_regionnid-with-api-calls.patch mm-make-early_pfn_to_nid-and-related-defintions-close-to-each-other.patch mm-remove-config_have_memblock_node_map-option.patch mm-free_area_init-use-maximal-zone-pfns-rather-than-zone-sizes.patch mm-use-free_area_init-instead-of-free_area_init_nodes.patch alpha-simplify-detection-of-memory-zone-boundaries.patch arm-simplify-detection-of-memory-zone-boundaries.patch arm64-simplify-detection-of-memory-zone-boundaries-for-uma-configs.patch csky-simplify-detection-of-memory-zone-boundaries.patch m68k-mm-simplify-detection-of-memory-zone-boundaries.patch parisc-simplify-detection-of-memory-zone-boundaries.patch sparc32-simplify-detection-of-memory-zone-boundaries.patch unicore32-simplify-detection-of-memory-zone-boundaries.patch xtensa-simplify-detection-of-memory-zone-boundaries.patch mm-remove-early_pfn_in_nid-and-config_nodes_span_other_nodes.patch mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order.patch mm-free_area_init-allow-defining-max_zone_pfn-in-descending-order-fix-2.patch mm-rename-free_area_init_node-to-free_area_init_memoryless_node.patch mm-clean-up-free_area_init_node-and-its-helpers.patch mm-simplify-find_min_pfn_with_active_regions.patch docs-vm-update-memory-models-documentation.patch h8300-remove-usage-of-__arch_use_5level_hack.patch arm-add-support-for-folded-p4d-page-tables.patch arm-add-support-for-folded-p4d-page-tables-fix.patch arm64-add-support-for-folded-p4d-page-tables.patch hexagon-remove-__arch_use_5level_hack.patch ia64-add-support-for-folded-p4d-page-tables.patch nios2-add-support-for-folded-p4d-page-tables.patch openrisc-add-support-for-folded-p4d-page-tables.patch powerpc-add-support-for-folded-p4d-page-tables.patch powerpc-add-support-for-folded-p4d-page-tables-fix.patch sh-drop-__pxd_offset-macros-that-duplicate-pxd_index-ones.patch sh-add-support-for-folded-p4d-page-tables.patch unicore32-remove-__arch_use_5level_hack.patch asm-generic-remove-pgtable-nop4d-hackh.patch mm-remove-__arch_has_5level_hack-and-include-asm-generic-5level-fixuph.patch mm-dont-include-asm-pgtableh-if-linux-mmh-is-already-included.patch mm-introduce-include-linux-pgtableh.patch mm-reorder-includes-after-introduction-of-linux-pgtableh.patch csky-replace-definitions-of-__pxd_offset-with-pxd_index.patch m68k-mm-motorola-move-comment-about-page-table-allocation-funcitons.patch m68k-mm-move-cachenocahe_page-definitions-close-to-their-user.patch x86-mm-simplify-init_trampoline-and-surrounding-logic.patch mm-pgtable-add-shortcuts-for-accessing-kernel-pmd-and-pte.patch mm-consolidate-pte_index-and-pte_offset_-definitions.patch mm-consolidate-pmd_index-and-pmd_offset-definitions.patch mm-consolidate-pud_index-and-pud_offset-definitions.patch mm-consolidate-pgd_index-and-pgd_offset_k-definitions.patch