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Mon, 01 May 2023 12:28:59 -0700 (PDT) Received: from fedora.hsd1.ca.comcast.net ([2601:644:937f:7f20::9a2c]) by smtp.googlemail.com with ESMTPSA id u8-20020a170902bf4800b0019c13d032d8sm18175622pls.253.2023.05.01.12.28.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 May 2023 12:28:59 -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, "Vishal Moola (Oracle)" Subject: [PATCH v2 18/34] mm: Remove page table members from struct page Date: Mon, 1 May 2023 12:28:13 -0700 Message-Id: <20230501192829.17086-19-vishal.moola@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230501192829.17086-1-vishal.moola@gmail.com> References: <20230501192829.17086-1-vishal.moola@gmail.com> MIME-Version: 1.0 X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: AE7C4C001A X-Stat-Signature: 7wtrgbeu8imnxtzsmyb98ixgd8tyu1tx X-HE-Tag: 1682969340-120939 X-HE-Meta: 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 OLxCgfKK 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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 b067ac10f3dd..90fa73a896db 100644 --- a/include/linux/pgtable.h +++ b/include/linux/pgtable.h @@ -1034,10 +1034,7 @@ 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));