From patchwork Mon May 1 19:28:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13228057 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 15EA7C7EE2E for ; Mon, 1 May 2023 19:31:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233856AbjEATbJ (ORCPT ); Mon, 1 May 2023 15:31:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56994 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233473AbjEAT3n (ORCPT ); Mon, 1 May 2023 15:29:43 -0400 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2794A30E8; Mon, 1 May 2023 12:29:12 -0700 (PDT) Received: by mail-pg1-x529.google.com with SMTP id 41be03b00d2f7-51fcf5d1e44so2423784a12.3; Mon, 01 May 2023 12:29:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1682969339; x=1685561339; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=mrqntkjJd8BO8YfASMnosk0HIl+t/0EXXW8sSx0dJVg=; b=YynIc3MWOn+7eKGjmZARCn/IjCANfe8gTHKhI/1ubKTs4ZbiubHG1P9aimD9KzNrIR eunJCIzqiXfZGl0CCMrWEsO+nwpbu9UTA+2coBncf0PpX1ohouYsG2DEdDJZPuTXi/ir yR5oJPT4K2awb6eBfuzacZRfwPXKDUNKWynDv8oNvVCBXhLYj3JhwMiPBRO+Fg6hjdSs FM9xgZDHU6Sc+urW7voaFKEt/7m6LjDuxZZp6qL4zZI9dwEcGtT8oaSDqFIY7TNV4Oop NDnPsASY2UskW6usELO5k/OqVJv807YApzHQHt4bSD2BLXySmWIPAbRFeQIxlm3YwdkY qcpQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682969339; x=1685561339; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mrqntkjJd8BO8YfASMnosk0HIl+t/0EXXW8sSx0dJVg=; b=YfEWpp+w0zdwl55DaNbB7wXees/OU6DcqhG3K1powRQLivlJB+NJKMAbgHaGgKa2td dqZ9aO1W//gGA//DDoz+F9V8mHsRVQ+s26k2AjD5LOIXYUV+q8XkAYv2kSv5BV8OPFeu UTKqbcKlGvyKn6GDJDeH+FHfwLLXfIsHS7fXh5J6FjYFcQnizmlObll8m7GfDLEH63Jv GUulGM/Os8U8BUHqmZ8FPfhAa0TD8ji1BqJlJboUmWdAgTSJeXOVX8qnHGzfXQG3F+2n LxUZSjG9bZ7njfiZ3xDV7nL6DqHlieysSCYiMwARwwrSEgAhPXyDNEGfBd1ZJeHlmtKB GYLQ== X-Gm-Message-State: AC+VfDxd3pIlRRG7pnc5U6vGBukGXsHf9/+WHbDQB7ptBTBKhI+r4Z1b 5KqGrMmmiQrY1IFlQeqil74= X-Google-Smtp-Source: ACHHUZ77ujqEA4Fn1OLOb7e5ecCGVNnJtAoTp2B3mAkadiAfSXyelwvqP5mlNEo41vojA+MW1rmqbg== X-Received: by 2002:a17:902:ce8e:b0:1aa:efad:f2d4 with SMTP id f14-20020a170902ce8e00b001aaefadf2d4mr5633464plg.63.1682969339499; Mon, 01 May 2023 12:28:59 -0700 (PDT) Received: from fedora.hsd1.ca.comcast.net ([2601:644:937f:7f20::9a2c]) by smtp.googlemail.com with ESMTPSA id u8-20020a170902bf4800b0019c13d032d8sm18175622pls.253.2023.05.01.12.28.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 May 2023 12:28:59 -0700 (PDT) From: "Vishal Moola (Oracle)" To: Andrew Morton , Matthew Wilcox Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-openrisc@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, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, "Vishal Moola (Oracle)" Subject: [PATCH v2 18/34] mm: Remove page table members from struct page Date: Mon, 1 May 2023 12:28:13 -0700 Message-Id: <20230501192829.17086-19-vishal.moola@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230501192829.17086-1-vishal.moola@gmail.com> References: <20230501192829.17086-1-vishal.moola@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The page table members are now split out into their own ptdesc struct. Remove them from struct page. Signed-off-by: Vishal Moola (Oracle) --- include/linux/mm_types.h | 14 -------------- include/linux/pgtable.h | 3 --- 2 files changed, 17 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 6161fe1ae5b8..31ffa1be21d0 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -141,20 +141,6 @@ struct page { struct { /* Tail pages of compound page */ unsigned long compound_head; /* Bit zero is set */ }; - struct { /* Page table pages */ - unsigned long _pt_pad_1; /* compound_head */ - pgtable_t pmd_huge_pte; /* protected by page->ptl */ - unsigned long _pt_s390_gaddr; /* mapping */ - union { - struct mm_struct *pt_mm; /* x86 pgds only */ - atomic_t pt_frag_refcount; /* powerpc */ - }; -#if ALLOC_SPLIT_PTLOCKS - spinlock_t *ptl; -#else - spinlock_t ptl; -#endif - }; struct { /* ZONE_DEVICE pages */ /** @pgmap: Points to the hosting device page map. */ struct dev_pagemap *pgmap; diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index b067ac10f3dd..90fa73a896db 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1034,10 +1034,7 @@ struct ptdesc { TABLE_MATCH(flags, __page_flags); TABLE_MATCH(compound_head, pt_list); TABLE_MATCH(compound_head, _pt_pad_1); -TABLE_MATCH(pmd_huge_pte, pmd_huge_pte); TABLE_MATCH(mapping, _pt_s390_gaddr); -TABLE_MATCH(pt_mm, pt_mm); -TABLE_MATCH(ptl, ptl); #undef TABLE_MATCH static_assert(sizeof(struct ptdesc) <= sizeof(struct page));