From patchwork Mon Aug 7 23:04:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vishal Moola X-Patchwork-Id: 13345360 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 0FFA2C04A94 for ; Mon, 7 Aug 2023 23:07:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230061AbjHGXHd (ORCPT ); Mon, 7 Aug 2023 19:07:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45076 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229717AbjHGXG5 (ORCPT ); Mon, 7 Aug 2023 19:06:57 -0400 Received: from mail-yb1-xb2a.google.com (mail-yb1-xb2a.google.com [IPv6:2607:f8b0:4864:20::b2a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E785F1705; Mon, 7 Aug 2023 16:06:10 -0700 (PDT) Received: by mail-yb1-xb2a.google.com with SMTP id 3f1490d57ef6-d479d128596so3766300276.1; Mon, 07 Aug 2023 16:06:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1691449548; x=1692054348; 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=djDHSA50q7R+UyBiZfR1OlHjGJmDs73q9nwlLjbVi90=; b=A70KAiN4sx+tlFlhyX9BkgJstVMLVR3VqHlhU0rx7I/q1gK7xadYJiksKbuvoZ1TCU vtYAPdjYMcohI4FUcCDaUSvo3KExkCCd8i4ZAJlLsd7GGEFa35HZ6ueu66zMG9Pjessv IfHL3oLMSZbSj2Xq1C5vYTgwWzjwrMyTCzKH7w07IcqqBjGPHvlKkPkr5yx2TrtnD3V5 vilM5UK235QUkkDj7spFvnAsyD47IB2DFcBmstKvpCiE4ENrGAtmtfggM5j3FhO6Urma yNzpPXlABiRMwP18oUglZegWP3XimvmMFaP4ALUxkyZmGiszwVYNBF+f3K+ck5Grr2Wp NJ/A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691449548; x=1692054348; 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=djDHSA50q7R+UyBiZfR1OlHjGJmDs73q9nwlLjbVi90=; b=BNrzF4QxxvEdfX/WMRJQL7FRb9YYYpimsE59T/drqo81PhVKgTbCfm5jzbwfpv2Syc Y6WmSYZ7DNlAA0uNxMHE2Pfs8YGZ9qNnPtdB2WloKdmr7Efa7SVK8HOXV+fI72qDq3ad BbLv9ubTRm8Zpdoa9tDczB1SRsMytvUjA8cixfoXr7dQOmIplEe9iqAWwbjM0wTiNydu 77hIjch4M7OdMvGcZB9knH4kvU17kK7UbnrlRyCZOkHV7ebMiA7rTmKXR17X0jHHlP2L lDMXVYqAxk+gsLb4kOgM7+3nLoSBNYqRCMt8nYDoHT5s4d1zXmTdzUYcyOkw9dOLeSCn uxbg== X-Gm-Message-State: AOJu0YzfRrzyUS+IbMPOn8pX2SfrXLRMwEEo1qZlRKdFBOLJKjw3bx8C G2hOPGkAHQcUqYa74wQX1h8= X-Google-Smtp-Source: AGHT+IGTzP73V6D5bA3Obfkv2DqAOxUsUVIIigLLB5NQKEC9VyMSvyrKel3HyW7I0Mz7ccDZUXFbIA== X-Received: by 2002:a25:d8c4:0:b0:d05:2616:3363 with SMTP id p187-20020a25d8c4000000b00d0526163363mr9753736ybg.26.1691449548551; Mon, 07 Aug 2023 16:05:48 -0700 (PDT) Received: from unknowna0e70b2ca394.attlocal.net ([2600:1700:2f7d:1800::16]) by smtp.googlemail.com with ESMTPSA id d190-20020a25cdc7000000b00d3596aca5bcsm2545203ybf.34.2023.08.07.16.05.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 16:05:48 -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, Hugh Dickins , "Vishal Moola (Oracle)" , Mike Rapoport Subject: [PATCH mm-unstable v9 15/31] mm: remove page table members from struct page Date: Mon, 7 Aug 2023 16:04:57 -0700 Message-Id: <20230807230513.102486-16-vishal.moola@gmail.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230807230513.102486-1-vishal.moola@gmail.com> References: <20230807230513.102486-1-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) Acked-by: Mike Rapoport (IBM) --- include/linux/mm_types.h | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index ea34b22b4cbf..f5ba5b0bc836 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -141,24 +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 */ - /* - * A PTE page table page might be freed by use of - * rcu_head: which overlays those two fields above. - */ - unsigned long _pt_pad_2; /* 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; @@ -454,10 +436,7 @@ 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, __page_mapping); -TABLE_MATCH(pt_mm, pt_mm); -TABLE_MATCH(ptl, ptl); TABLE_MATCH(rcu_head, pt_rcu_head); TABLE_MATCH(page_type, __page_type); TABLE_MATCH(_refcount, _refcount);