From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" 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> References: <20230807230513.102486-1-vishal.moola@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: List-Id: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" 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== In-Reply-To: <20230807230513.102486-1-vishal.moola@gmail.com> Content-Type: text/plain; charset="us-ascii" 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 | 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); -- 2.40.1