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Mon, 12 Jun 2023 14:05:22 -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)" 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> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230612210423.18611-1-vishal.moola@gmail.com> References: <20230612210423.18611-1-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: A5CBC40007 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: cef897kakf4k7e8aw3ceth5p4i5134fu X-HE-Tag: 1686603923-386477 X-HE-Meta: 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 0ILWUv7+ 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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