From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Morton Subject: [patch 076/131] mm/hugetlb: define a generic fallback for is_hugepage_only_range() Date: Wed, 03 Jun 2020 16:01:01 -0700 Message-ID: <20200603230101.nXzMdSLsK%akpm@linux-foundation.org> References: <20200603155549.e041363450869eaae4c7f05b@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from mail.kernel.org ([198.145.29.99]:43464 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725821AbgFCXBE (ORCPT ); Wed, 3 Jun 2020 19:01:04 -0400 In-Reply-To: <20200603155549.e041363450869eaae4c7f05b@linux-foundation.org> Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: akpm@linux-foundation.org, anshuman.khandual@arm.com, benh@kernel.crashing.org, borntraeger@de.ibm.com, bp@alien8.de, catalin.marinas@arm.com, dalias@libc.org, davem@davemloft.net, deller@gmx.de, fenghua.yu@intel.com, gor@linux.ibm.com, heiko.carstens@de.ibm.com, hpa@zytor.com, James.Bottomley@HansenPartnership.com, linux-mm@kvack.org, linux@armlinux.org.uk, mike.kravetz@oracle.com, mingo@redhat.com, mm-commits@vger.kernel.org, mpe@ellerman.id.au, palmer@dabbelt.com, paul.walmsley@sifive.com, paulus@samba.org, tglx@linutronix.de, tony.luck@intel.com, torvalds@linux-foundation.org, tsbogend@alpha.franken.de, will@kernel.org, ysato@users.sourceforge.jp From: Anshuman Khandual Subject: mm/hugetlb: define a generic fallback for is_hugepage_only_range() There are multiple similar definitions for is_hugepage_only_range() on various platforms. Lets just add it's generic fallback definition for platforms that do not override. This help reduce code duplication. Link: http://lkml.kernel.org/r/1588907271-11920-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Acked-by: Mike Kravetz Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Tony Luck Cc: Fenghua Yu Cc: Thomas Bogendoerfer Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Yoshinori Sato Cc: Rich Felker Cc: "David S. Miller" Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: "H. Peter Anvin" Signed-off-by: Andrew Morton --- arch/arm/include/asm/hugetlb.h | 6 ------ arch/arm64/include/asm/hugetlb.h | 6 ------ arch/ia64/include/asm/hugetlb.h | 1 + arch/mips/include/asm/hugetlb.h | 7 ------- arch/parisc/include/asm/hugetlb.h | 6 ------ arch/powerpc/include/asm/hugetlb.h | 1 + arch/riscv/include/asm/hugetlb.h | 6 ------ arch/s390/include/asm/hugetlb.h | 7 ------- arch/sh/include/asm/hugetlb.h | 6 ------ arch/sparc/include/asm/hugetlb.h | 6 ------ arch/x86/include/asm/hugetlb.h | 6 ------ include/linux/hugetlb.h | 9 +++++++++ 12 files changed, 11 insertions(+), 56 deletions(-) --- a/arch/arm64/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/arm64/include/asm/hugetlb.h @@ -17,12 +17,6 @@ extern bool arch_hugetlb_migration_supported(struct hstate *h); #endif -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, unsigned long len) -{ - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); --- a/arch/arm/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/arm/include/asm/hugetlb.h @@ -14,12 +14,6 @@ #include #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, unsigned long len) -{ - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { clear_bit(PG_dcache_clean, &page->flags); --- a/arch/ia64/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/ia64/include/asm/hugetlb.h @@ -20,6 +20,7 @@ static inline int is_hugepage_only_range return (REGION_NUMBER(addr) == RGN_HPAGE || REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE); } +#define is_hugepage_only_range is_hugepage_only_range #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, --- a/arch/mips/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/mips/include/asm/hugetlb.h @@ -11,13 +11,6 @@ #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) -{ - return 0; -} - #define __HAVE_ARCH_PREPARE_HUGEPAGE_RANGE static inline int prepare_hugepage_range(struct file *file, unsigned long addr, --- a/arch/parisc/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/parisc/include/asm/hugetlb.h @@ -12,12 +12,6 @@ void set_huge_pte_at(struct mm_struct *m pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - /* * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. --- a/arch/powerpc/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/powerpc/include/asm/hugetlb.h @@ -30,6 +30,7 @@ static inline int is_hugepage_only_range return slice_is_hugepage_only_range(mm, addr, len); return 0; } +#define is_hugepage_only_range is_hugepage_only_range #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, --- a/arch/riscv/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/riscv/include/asm/hugetlb.h @@ -5,12 +5,6 @@ #include #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - static inline void arch_clear_hugepage_flags(struct page *page) { } --- a/arch/s390/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/s390/include/asm/hugetlb.h @@ -21,13 +21,6 @@ pte_t huge_ptep_get(pte_t *ptep); pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -static inline bool is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) -{ - return false; -} - /* * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. --- a/arch/sh/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/sh/include/asm/hugetlb.h @@ -5,12 +5,6 @@ #include #include -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - /* * If the arch doesn't supply something else, assume that hugepage * size aligned regions are ok without further preparation. --- a/arch/sparc/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/sparc/include/asm/hugetlb.h @@ -20,12 +20,6 @@ void set_huge_pte_at(struct mm_struct *m pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -} - #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH static inline void huge_ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) --- a/arch/x86/include/asm/hugetlb.h~mm-hugetlb-define-a-generic-fallback-for-is_hugepage_only_range +++ a/arch/x86/include/asm/hugetlb.h @@ -7,12 +7,6 @@ #define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE) -static inline int is_hugepage_only_range(struct mm_struct *mm, - unsigned long addr, - unsigned long len) { - return 0; -}