From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" Subject: [PATCH mm-unstable v7 15/31] mm: Remove page table members from struct page Date: Mon, 24 Jul 2023 21:20:35 -0700 Message-ID: <20230725042051.36691-16-vishal.moola@gmail.com> References: <20230725042051.36691-1-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=RduFRs/0a6qVM3vTcIAEfyjFp2RL80TR3ED4hk08Bhg=; b=aijP6dPZJ+6vBI 0MhxGGptpdWgfDVk4jTyPygkyp3UwAdIjRM9mT/rlBO06kDm6WWIi6CSYygswX7xhawpz/q42NMSP 36Zp7jHFh36XH8t9eCTUOGPJTMharNWaq+MMNs+IDaxhujb4HWO2fuVhBAvACg1PYZMsrZBpqrA1O ixQWN4LuuW5b/3dy/GHeqwCOiM7b6PRT75o8tO/gf5+7o99sTUXMBOeCoy3khO9ZP8KdEflX6z6bl QEHfNRAjgPN/cWgl4oSHE9/lpfzK1B8zIm4wEccG9OCRSCs3Getym77yUaE3Rx35tRvo1+9ib/Si0 Tjd1phMK+5JLu23aTcpg==; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690258898; x=1690863698; 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=hoPDwBR7UkDBRqaPTC6ObTEe9OrRslO4Jma44jkeaBI=; b=Dgs8EsJAHasnII4rJ0h10Nj9H3O9uzEKXy7LW6sf6S5UPbm7zagckuwMpdCbvZk8cU 3/jnkSDkvXi64EHRwyjz+CM8p/KmVE/9fnMiDEX0PvmK/w2bAUSZDPt5BzsyT9VmXNoR USMHwv5na3aMh8DeZjSQRwfSfPFKG4ZOnIYC2X37iqKJqBwj0eKoY0bqe0NY7N310KPu aidhbQQvpt95cN5aH+LGh5XqwJcQ2uC+n4TR20GhHOCZWT8rqRInnhuzQKk9A3ffSHvU 8/8KhU8ISd3BEz/7bIAWQZEwejG7oku5b5qOTInFSfUdh8Iny4J/y8tSxkhE65C29I99 J5UQ== In-Reply-To: <20230725042051.36691-1-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)" , Mike Rapoport 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 | 18 ------------------ include/linux/pgtable.h | 3 --- 2 files changed, 21 deletions(-) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index da538ff68953..aae6af098031 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; diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h index 250fdeba68f3..1a984c300d45 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1051,10 +1051,7 @@ 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); -- 2.40.1