From patchwork Fri Jan 13 17:10:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 13101322 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9CC3C54EBE for ; Fri, 13 Jan 2023 17:22:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230515AbjAMRWA (ORCPT ); Fri, 13 Jan 2023 12:22:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230371AbjAMRVT (ORCPT ); Fri, 13 Jan 2023 12:21:19 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 302E096761 for ; Fri, 13 Jan 2023 09:13:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673630035; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+mP3IZE/KZDl9GAJezYjg0rs6pyEF4+VKT2OjTSckLY=; b=S78JV5ylQfT3bLQ3sxi1h3HTjGG+0EsPXYh3q9EnOOtyQRyTuYEj9XzsyDLYO8dw9r19x7 /iBW03fjSncQC7OcL6AZAS4O99Q3YHq7uiMEimdeXb/qmPYVECf+3FJvuHbPl4tRigROt5 X/TZoUg+XnjM60CGMG5RITYCKke7Id8= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-228-yJ_xIwaqOwyPhpGEXK3vQQ-1; Fri, 13 Jan 2023 12:13:53 -0500 X-MC-Unique: yJ_xIwaqOwyPhpGEXK3vQQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 169B0887400; Fri, 13 Jan 2023 17:13:52 +0000 (UTC) Received: from t480s.fritz.box (unknown [10.39.193.196]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9979F40C2004; Fri, 13 Jan 2023 17:13:45 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Hugh Dickins , John Hubbard , Jason Gunthorpe , Mike Rapoport , Yang Shi , Vlastimil Babka , Nadav Amit , Andrea Arcangeli , Peter Xu , linux-mm@kvack.org, x86@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org, David Hildenbrand Subject: [PATCH mm-unstable v1 26/26] mm: remove __HAVE_ARCH_PTE_SWP_EXCLUSIVE Date: Fri, 13 Jan 2023 18:10:26 +0100 Message-Id: <20230113171026.582290-27-david@redhat.com> In-Reply-To: <20230113171026.582290-1-david@redhat.com> References: <20230113171026.582290-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org __HAVE_ARCH_PTE_SWP_EXCLUSIVE is now supported by all architectures that support swp PTEs, so let's drop it. Signed-off-by: David Hildenbrand --- arch/alpha/include/asm/pgtable.h | 1 - arch/arc/include/asm/pgtable-bits-arcv2.h | 1 - arch/arm/include/asm/pgtable.h | 1 - arch/arm64/include/asm/pgtable.h | 1 - arch/csky/include/asm/pgtable.h | 1 - arch/hexagon/include/asm/pgtable.h | 1 - arch/ia64/include/asm/pgtable.h | 1 - arch/loongarch/include/asm/pgtable.h | 1 - arch/m68k/include/asm/mcf_pgtable.h | 1 - arch/m68k/include/asm/motorola_pgtable.h | 1 - arch/m68k/include/asm/sun3_pgtable.h | 1 - arch/microblaze/include/asm/pgtable.h | 1 - arch/mips/include/asm/pgtable.h | 1 - arch/nios2/include/asm/pgtable.h | 1 - arch/openrisc/include/asm/pgtable.h | 1 - arch/parisc/include/asm/pgtable.h | 1 - arch/powerpc/include/asm/book3s/32/pgtable.h | 1 - arch/powerpc/include/asm/book3s/64/pgtable.h | 1 - arch/powerpc/include/asm/nohash/pgtable.h | 1 - arch/riscv/include/asm/pgtable.h | 1 - arch/s390/include/asm/pgtable.h | 1 - arch/sh/include/asm/pgtable_32.h | 1 - arch/sparc/include/asm/pgtable_32.h | 1 - arch/sparc/include/asm/pgtable_64.h | 1 - arch/um/include/asm/pgtable.h | 1 - arch/x86/include/asm/pgtable.h | 1 - arch/xtensa/include/asm/pgtable.h | 1 - include/linux/pgtable.h | 29 -------------------- mm/debug_vm_pgtable.c | 2 -- mm/memory.c | 4 --- mm/rmap.c | 11 -------- 31 files changed, 73 deletions(-) diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h index 970abf511b13..ba43cb841d19 100644 --- a/arch/alpha/include/asm/pgtable.h +++ b/arch/alpha/include/asm/pgtable.h @@ -328,7 +328,6 @@ extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/arc/include/asm/pgtable-bits-arcv2.h b/arch/arc/include/asm/pgtable-bits-arcv2.h index 611f412713b9..6e9f8ca6d6a1 100644 --- a/arch/arc/include/asm/pgtable-bits-arcv2.h +++ b/arch/arc/include/asm/pgtable-bits-arcv2.h @@ -132,7 +132,6 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 886c275995a2..2e626e6da9a3 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -298,7 +298,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(swp) __pte((swp).val) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_isset(pte, L_PTE_SWP_EXCLUSIVE); diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index b4bbeed80fb6..e0c19f5e3413 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -417,7 +417,6 @@ static inline pgprot_t mk_pmd_sect_prot(pgprot_t prot) return __pgprot((pgprot_val(prot) & ~PMD_TABLE_BIT) | PMD_TYPE_SECT); } -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline pte_t pte_swp_mkexclusive(pte_t pte) { return set_pte_bit(pte, __pgprot(PTE_SWP_EXCLUSIVE)); diff --git a/arch/csky/include/asm/pgtable.h b/arch/csky/include/asm/pgtable.h index 574c97b9ecca..d4042495febc 100644 --- a/arch/csky/include/asm/pgtable.h +++ b/arch/csky/include/asm/pgtable.h @@ -200,7 +200,6 @@ static inline pte_t pte_mkyoung(pte_t pte) return pte; } -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h index 7eb008e477c8..59393613d086 100644 --- a/arch/hexagon/include/asm/pgtable.h +++ b/arch/hexagon/include/asm/pgtable.h @@ -397,7 +397,6 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) (((type & 0x1f) << 1) | \ ((offset & 0x3ffff8) << 10) | ((offset & 0x7) << 7)) }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h index e4b8ab931399..21c97e31a28a 100644 --- a/arch/ia64/include/asm/pgtable.h +++ b/arch/ia64/include/asm/pgtable.h @@ -424,7 +424,6 @@ extern void paging_init (void); #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h index c6b8fe7ac43c..d28fb9dbec59 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -276,7 +276,6 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset) #define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val(pmd) }) #define __swp_entry_to_pmd(x) ((pmd_t) { (x).val | _PAGE_HUGE }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/m68k/include/asm/mcf_pgtable.h b/arch/m68k/include/asm/mcf_pgtable.h index e573d7b649f7..13741c1245e1 100644 --- a/arch/m68k/include/asm/mcf_pgtable.h +++ b/arch/m68k/include/asm/mcf_pgtable.h @@ -275,7 +275,6 @@ extern pgd_t kernel_pg_dir[PTRS_PER_PGD]; #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) (__pte((x).val)) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/m68k/include/asm/motorola_pgtable.h b/arch/m68k/include/asm/motorola_pgtable.h index c1782563e793..ec0dc19ab834 100644 --- a/arch/m68k/include/asm/motorola_pgtable.h +++ b/arch/m68k/include/asm/motorola_pgtable.h @@ -190,7 +190,6 @@ extern pgd_t kernel_pg_dir[128]; #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/m68k/include/asm/sun3_pgtable.h b/arch/m68k/include/asm/sun3_pgtable.h index dbfc9703b15d..e582b0484a55 100644 --- a/arch/m68k/include/asm/sun3_pgtable.h +++ b/arch/m68k/include/asm/sun3_pgtable.h @@ -174,7 +174,6 @@ extern pgd_t kernel_pg_dir[PTRS_PER_PGD]; #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index 7e3de54bf426..d1b8272abcd9 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -412,7 +412,6 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 2 }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val << 2 }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index 711874cee8e4..791389bf3c12 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -528,7 +528,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) } #endif -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE #if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) static inline int pte_swp_exclusive(pte_t pte) { diff --git a/arch/nios2/include/asm/pgtable.h b/arch/nios2/include/asm/pgtable.h index 05999da01731..0f5c2564e9f5 100644 --- a/arch/nios2/include/asm/pgtable.h +++ b/arch/nios2/include/asm/pgtable.h @@ -253,7 +253,6 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) #define __swp_entry_to_pte(swp) ((pte_t) { (swp).val }) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h index 903b32d662ab..3eb9b9555d0d 100644 --- a/arch/openrisc/include/asm/pgtable.h +++ b/arch/openrisc/include/asm/pgtable.h @@ -408,7 +408,6 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 3033bb88df34..e2950f5db7c9 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -422,7 +422,6 @@ extern void paging_init (void); #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h index 0ecb3a58f23f..7bf1fe7297c6 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -386,7 +386,6 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 3 }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val << 3 }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index cb4c67bf45d7..4acc9690f599 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -717,7 +717,6 @@ static inline pte_t pte_swp_clear_soft_dirty(pte_t pte) } #endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */ -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline pte_t pte_swp_mkexclusive(pte_t pte) { return __pte_raw(pte_raw(pte) | cpu_to_be64(_PAGE_SWP_EXCLUSIVE)); diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index 5f4620940c2c..a6caaaab6f92 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -151,7 +151,6 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) return __pte((pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot)); } -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 03a4728db039..5b9f409a940d 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -752,7 +752,6 @@ static inline pmd_t pmdp_establish(struct vm_area_struct *vma, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index b26cbf1c533c..2b5db99e31dd 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -812,7 +812,6 @@ static inline int pmd_protnone(pmd_t pmd) } #endif -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h index c34aa795a9d2..21952b094650 100644 --- a/arch/sh/include/asm/pgtable_32.h +++ b/arch/sh/include/asm/pgtable_32.h @@ -479,7 +479,6 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) /* In both cases, we borrow bit 6 to store the exclusive marker in swap PTEs. */ #define _PAGE_SWP_EXCLUSIVE _PAGE_USER -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte.pte_low & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h index abf7a2601209..d4330e3c57a6 100644 --- a/arch/sparc/include/asm/pgtable_32.h +++ b/arch/sparc/include/asm/pgtable_32.h @@ -353,7 +353,6 @@ static inline swp_entry_t __swp_entry(unsigned long type, unsigned long offset) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & SRMMU_SWP_EXCLUSIVE; diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index a1658eebd036..2dc8d4641734 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -989,7 +989,6 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp); #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h index cedc5fd451ce..a70d1618eb35 100644 --- a/arch/um/include/asm/pgtable.h +++ b/arch/um/include/asm/pgtable.h @@ -313,7 +313,6 @@ extern pte_t *virt_to_pte(struct mm_struct *mm, unsigned long addr); ((swp_entry_t) { pte_val(pte_mkuptodate(pte)) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_get_bits(pte, _PAGE_SWP_EXCLUSIVE); diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index d25195726b78..7425f32e5293 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1299,7 +1299,6 @@ static inline void update_mmu_cache_pud(struct vm_area_struct *vma, unsigned long addr, pud_t *pud) { } -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline pte_t pte_swp_mkexclusive(pte_t pte) { return pte_set_flags(pte, _PAGE_SWP_EXCLUSIVE); diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h index 1025e2dc292b..fc7a14884c6c 100644 --- a/arch/xtensa/include/asm/pgtable.h +++ b/arch/xtensa/include/asm/pgtable.h @@ -360,7 +360,6 @@ ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define __HAVE_ARCH_PTE_SWP_EXCLUSIVE static inline int pte_swp_exclusive(pte_t pte) { return pte_val(pte) & _PAGE_SWP_EXCLUSIVE; diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 1159b25b0542..5fd45454c073 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1064,35 +1064,6 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot) #define arch_start_context_switch(prev) do {} while (0) #endif -/* - * When replacing an anonymous page by a real (!non) swap entry, we clear - * PG_anon_exclusive from the page and instead remember whether the flag was - * set in the swp pte. During fork(), we have to mark the entry as !exclusive - * (possibly shared). On swapin, we use that information to restore - * PG_anon_exclusive, which is very helpful in cases where we might have - * additional (e.g., FOLL_GET) references on a page and wouldn't be able to - * detect exclusivity. - * - * These functions don't apply to non-swap entries (e.g., migration, hwpoison, - * ...). - */ -#ifndef __HAVE_ARCH_PTE_SWP_EXCLUSIVE -static inline pte_t pte_swp_mkexclusive(pte_t pte) -{ - return pte; -} - -static inline int pte_swp_exclusive(pte_t pte) -{ - return false; -} - -static inline pte_t pte_swp_clear_exclusive(pte_t pte) -{ - return pte; -} -#endif - #ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY #ifndef CONFIG_ARCH_ENABLE_THP_MIGRATION static inline pmd_t pmd_swp_mksoft_dirty(pmd_t pmd) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index a0730beffd78..3da0cc380c35 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -810,7 +810,6 @@ static void __init pmd_swap_soft_dirty_tests(struct pgtable_debug_args *args) { static void __init pte_swap_exclusive_tests(struct pgtable_debug_args *args) { -#ifdef __HAVE_ARCH_PTE_SWP_EXCLUSIVE unsigned long max_swapfile_size = generic_max_swapfile_size(); swp_entry_t entry, entry2; pte_t pte; @@ -839,7 +838,6 @@ static void __init pte_swap_exclusive_tests(struct pgtable_debug_args *args) WARN_ON(!is_swap_pte(pte)); entry2 = pte_to_swp_entry(pte); WARN_ON(memcmp(&entry, &entry2, sizeof(entry))); -#endif /* __HAVE_ARCH_PTE_SWP_EXCLUSIVE */ } static void __init pte_swap_tests(struct pgtable_debug_args *args) diff --git a/mm/memory.c b/mm/memory.c index abc4e606d8bc..ed853ba74366 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3870,10 +3870,6 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) * the swap entry concurrently) for certainly exclusive pages. */ if (!folio_test_ksm(folio)) { - /* - * Note that pte_swp_exclusive() == false for architectures - * without __HAVE_ARCH_PTE_SWP_EXCLUSIVE. - */ exclusive = pte_swp_exclusive(vmf->orig_pte); if (folio != swapcache) { /* diff --git a/mm/rmap.c b/mm/rmap.c index 0e450e6bb963..b26fbbcc9257 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1710,17 +1710,6 @@ static bool try_to_unmap_one(struct folio *folio, struct vm_area_struct *vma, page_vma_mapped_walk_done(&pvmw); break; } - /* - * Note: We *don't* remember if the page was mapped - * exclusively in the swap pte if the architecture - * doesn't support __HAVE_ARCH_PTE_SWP_EXCLUSIVE. In - * that case, swapin code has to re-determine that - * manually and might detect the page as possibly - * shared, for example, if there are other references on - * the page or if the page is under writeback. We made - * sure that there are no GUP pins on the page that - * would rely on it, so for GUP pins this is fine. - */ if (list_empty(&mm->mmlist)) { spin_lock(&mmlist_lock); if (list_empty(&mm->mmlist))