From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" Subject: [PATCH v4 18/34] mm: Remove page table members from struct page Date: Mon, 12 Jun 2023 14:04:07 -0700 Message-ID: <20230612210423.18611-19-vishal.moola@gmail.com> References: <20230612210423.18611-1-vishal.moola@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WlWO61t2swmg7Yce9yLoSD5nVW9WT0TZpyhzMe35/UU=; b=DOUXqpj27VY+ks Iz5DZcPjnwEHEO043hrWGjyhYF5gqHPWqJ9vyPSbUQHTx884BS7yVIGLVW0PFusDV8VaEF9tEYmjG x4Cmk2+FfG7ahtBDKIs7TbL3ldOSdhro1im4PG+C1F7fnPBATRAAmo33ibUy9M69CG8IyxldoenXW Z8/rssQQPlg3J1ToqaQ7OiPYm2LrHe0TWjfuFLcOgHvZS2C2JiArUrGF+ZCf7njRbKESrEsZKb2on FHBQVtWeqAIVSEG/+WTo3QhbRyzcSbdDFoFTUnkS2TlgUB62X+6sUa0wWPQY8jRduu5mUEOm93Rxs AU3BmIymdUUKTR3G+4JA==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1686603923; x=1689195923; 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=9BBSMNk3/NV9IPbcmTeXVmuDxVjvV9nk5pHOLLkR9Zc=; b=B5eteOvH/q+5UxTkqPiKmSRGXAjb4bZMizLs/WNtLaesb1E0HpRn4up+92FQaO/msD wl+HgJ9chyyZgdROsDvWF8ST2c98XDyJ6K5mIkqjJX4+EdwGnn3FI4jGMxc7JXWmf967 aU1KzzzuV6U5c/qEMroqPTw1zV9aDblRqBawPVlpf/Mlyp6BjBb5H05VxOKBrkeVjlqN FunX9lODEGlrIj4hvPqV1OUn4lS2vKzFGXO/PdJAy/LDMA65UwEZCw3NLCYo8+J5kL9P iG2KwFG+0fA0Z25/Erx4n5fssjHvgoAeU/1R/dnILNKDOgbuGKGvMNK5K7M37Fiw/tnm j5mQ== In-Reply-To: <20230612210423.18611-1-vishal.moola@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+glpr-linux-riscv=m.gmane-mx.org@lists.infradead.org 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)" 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 c405f74d3875..33cc19d752b3 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1019,10 +1019,7 @@ 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)); -- 2.40.1