From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Vishal Moola (Oracle)" Subject: [PATCH v3 18/34] mm: Remove page table members from struct page Date: Wed, 31 May 2023 14:30:16 -0700 Message-ID: <20230531213032.25338-19-vishal.moola@gmail.com> References: <20230531213032.25338-1-vishal.moola@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1685568705; x=1688160705; 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=o9eRM/zDkfdSk+8A/Hewm27be7ojppibpTW/4yMTPrs=; b=cEdd+3JqSM8NFS7GIxJNDGEwvf5zLrjyKSP/sMa+M4iyqruEv0NeTXFNM3FuEOve0w BIidhyYZPlXr46Gag37ah0Z9lK+/zubpEH8qTvbGBEkRrc++Uy/9vmo7kzodV2wrSQQX I30LmfVEDViclfTqhhCm9JCK+j60eB88X4OE4kx5hV9tTa2skQgGrRsYDfbJW0ibMSeL XGmJa+8fFqRfTTRXmPxLl8Ng1lVV80Cc71vk49EsIYa6/DzcwK4zi4KQyIaDphcDsbUr cdzc/H0c6XAN15Wd27KyDlOf+VJeKUYgNs/w5+avyyLu4TkMCo4jGnCkWr4fOUgF3X5G tX9Q== In-Reply-To: <20230531213032.25338-1-vishal.moola@gmail.com> List-ID: 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, "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 5f12622d1521..3b89dd028973 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1020,10 +1020,7 @@ 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