From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5E0B3C07E8D for ; Mon, 7 Aug 2023 23:06:37 +0000 (UTC) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20221208 header.b=kkOLGueM; dkim-atps=neutral Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4RKX4q469Pz3c7s for ; Tue, 8 Aug 2023 09:06:35 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20221208 header.b=kkOLGueM; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::22d; helo=mail-oi1-x22d.google.com; envelope-from=vishal.moola@gmail.com; receiver=lists.ozlabs.org) Received: from mail-oi1-x22d.google.com (mail-oi1-x22d.google.com [IPv6:2607:f8b0:4864:20::22d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4RKX3S4YKMz2xr6 for ; Tue, 8 Aug 2023 09:05:22 +1000 (AEST) Received: by mail-oi1-x22d.google.com with SMTP id 5614622812f47-3a741f46fadso3760045b6e.0 for ; Mon, 07 Aug 2023 16:05:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1691449518; x=1692054318; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=BgGe0Il0C7dlkrriaFCN0meYItalZZUDKy884yxXSME=; b=kkOLGueMrzxHvvdT5O8JIC8nC89W6/6UqoBnx7sB0VLAWpoO0/QHm5tLARAi96zyvU EAiiieHkpJTC9s5qvXPj39j6R2OQuCyqiEOwPTIq50/LHvV7fjReDxpsCX5Ya8M70FRF Bv+KZVFj7Mytss2brk2EH7Z9tHAP9yxEVCzntaEZzdSmQz9vPa1mUTDeJlBFV79lhO4m YdB4aoA79x9pkxJ/XBt7ZG1CR58HGrAi0v/zgewNhzm8aq6TJsefwLnAAAHjOqkPytFk EiZRzEbAgPBMpklpMOtlFM2muNSx1qBww2MBrDwGN8Akv7FqeHgJ4R5d3wn1SAH6io9W CEdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691449518; x=1692054318; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=BgGe0Il0C7dlkrriaFCN0meYItalZZUDKy884yxXSME=; b=AgNnulMYE7N9vTUe+G6Vktm6YBQIX8DlYABgP6VcGGI5lkes2AMW1cONPCElqhep8V bjvero7z9WAslIfmfKLQ2u4KF/U87y4h/NuoIMDifzU7w9H8I39iF6DJhdILDi+bpMkm vJodBMu+O07/i0cA31kxBK6TklU3veFXfw3OfkDX0qkhJkLNTVD7SCwytP5aTRS0mzsx qJlTiYH76Py7jAbr3cqS5q57sQ4hOaundToXa2af2XqujHdMpq4ZDpAl0xeAJN+lFjvg RZ187iJkuscMniHQnGId22spdk89LC3Bon4Jv8z0JP4vviQCkeoXnFjSuomGE4nXzQFu tpJA== X-Gm-Message-State: AOJu0YzPPEEry8xoL33hKAk9dj7QU+wibWDp9QFUW7UIdPvh9pTkTWpN HKyUit8hdLBEDmCguqaRX0g= X-Google-Smtp-Source: AGHT+IHI1CCxgU6LoWPuJYJEyHtYip1YJBCUFIlnO8SlV49xsFZp+VSY6a51skH1ZTqS0RRAJqit6Q== X-Received: by 2002:aca:d12:0:b0:3a1:f237:ec62 with SMTP id 18-20020aca0d12000000b003a1f237ec62mr10346742oin.48.1691449518360; Mon, 07 Aug 2023 16:05:18 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id d190-20020a25cdc7000000b00d3596aca5bcsm2545203ybf.34.2023.08.07.16.05.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 16:05:17 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Subject: [PATCH mm-unstable v9 00/31] Split ptdesc from struct page Date: Mon, 7 Aug 2023 16:04:42 -0700 Message-Id: <20230807230513.102486-1-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, linux-sh@vger.kernel.org, Catalin Marinas , Dave Hansen , David Hildenbrand , linux-openrisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Claudio Imbrenda , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, Yoshinori Sato , linux-hexagon@vger.kernel.org, Huacai Chen , Hugh Dickins , linux-csky@vger.kernel.org, Geert Uytterhoeven , xen-devel@lists.xenproject.org, Jonas Bonn , Arnd Bergmann , linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, loongarch@lists.linux.dev, Paul Walmsley , linux-arm-kernel@lists.infradead.org, Thomas Bogendoerfer , linux-mm@kvack.org, linux-mips@vger.kernel.org, "Vishal Moola \(Oracle\)" , Dinh Nguyen , Richard Weinberger , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The MM subsystem is trying to shrink struct page. This patchset introduces a memory descriptor for page table tracking - struct ptdesc. This patchset introduces ptdesc, splits ptdesc from struct page, and converts many callers of page table constructor/destructors to use ptdescs. Ptdesc is a foundation to further standardize page tables, and eventually allow for dynamic allocation of page tables independent of struct page. However, the use of pages for page table tracking is quite deeply ingrained and varied across archictectures, so there is still a lot of work to be done before that can happen. This applies cleanly onto the current unstable after dropping v8 of this series. v9: Fix build errors for NOMMU configs - trying to define ptdesc before spinlock_t and struct page were defined. Moved definition of struct ptdesc to include/linux/mm_types.h instead include/linux/pgtable.h Vishal Moola (Oracle) (31): mm: Add PAGE_TYPE_OP folio functions pgtable: create struct ptdesc mm: add utility functions for ptdesc mm: Convert pmd_pgtable_page() callers to use pmd_ptdesc() mm: Convert ptlock_alloc() to use ptdescs mm: Convert ptlock_ptr() to use ptdescs mm: Convert pmd_ptlock_init() to use ptdescs mm: Convert ptlock_init() to use ptdescs mm: Convert pmd_ptlock_free() to use ptdescs mm: Convert ptlock_free() to use ptdescs mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} powerpc: Convert various functions to use ptdescs x86: Convert various functions to use ptdescs s390: Convert various pgalloc functions to use ptdescs mm: remove page table members from struct page pgalloc: Convert various functions to use ptdescs arm: Convert various functions to use ptdescs arm64: Convert various functions to use ptdescs csky: Convert __pte_free_tlb() to use ptdescs hexagon: Convert __pte_free_tlb() to use ptdescs loongarch: Convert various functions to use ptdescs m68k: Convert various functions to use ptdescs mips: Convert various functions to use ptdescs nios2: Convert __pte_free_tlb() to use ptdescs openrisc: Convert __pte_free_tlb() to use ptdescs riscv: Convert alloc_{pmd, pte}_late() to use ptdescs sh: Convert pte_free_tlb() to use ptdescs sparc64: Convert various functions to use ptdescs sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents um: Convert {pmd, pte}_free_tlb() to use ptdescs mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Documentation/mm/split_page_table_lock.rst | 12 +- .../zh_CN/mm/split_page_table_lock.rst | 14 +- arch/arm/include/asm/tlb.h | 12 +- arch/arm/mm/mmu.c | 7 +- arch/arm64/include/asm/tlb.h | 14 +- arch/arm64/mm/mmu.c | 7 +- arch/csky/include/asm/pgalloc.h | 4 +- arch/hexagon/include/asm/pgalloc.h | 8 +- arch/loongarch/include/asm/pgalloc.h | 27 ++-- arch/loongarch/mm/pgtable.c | 7 +- arch/m68k/include/asm/mcf_pgalloc.h | 47 +++--- arch/m68k/include/asm/sun3_pgalloc.h | 8 +- arch/m68k/mm/motorola.c | 4 +- arch/mips/include/asm/pgalloc.h | 32 ++-- arch/mips/mm/pgtable.c | 8 +- arch/nios2/include/asm/pgalloc.h | 8 +- arch/openrisc/include/asm/pgalloc.h | 8 +- arch/powerpc/mm/book3s64/mmu_context.c | 10 +- arch/powerpc/mm/book3s64/pgtable.c | 32 ++-- arch/powerpc/mm/pgtable-frag.c | 58 +++---- arch/riscv/include/asm/pgalloc.h | 8 +- arch/riscv/mm/init.c | 16 +- arch/s390/include/asm/pgalloc.h | 4 +- arch/s390/include/asm/tlb.h | 4 +- arch/s390/mm/pgalloc.c | 128 +++++++-------- arch/sh/include/asm/pgalloc.h | 9 +- arch/sparc/mm/init_64.c | 17 +- arch/sparc/mm/srmmu.c | 5 +- arch/um/include/asm/pgalloc.h | 18 +-- arch/x86/mm/pgtable.c | 47 +++--- arch/x86/xen/mmu_pv.c | 2 +- include/asm-generic/pgalloc.h | 88 +++++----- include/asm-generic/tlb.h | 11 ++ include/linux/mm.h | 151 +++++++++++++----- include/linux/mm_types.h | 97 ++++++++--- include/linux/page-flags.h | 30 +++- mm/memory.c | 8 +- 37 files changed, 585 insertions(+), 385 deletions(-) -- 2.40.1