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From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Matthew Wilcox <willy@infradead.org>
Cc: linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
	kvm@vger.kernel.org, linux-openrisc@vger.kernel.org,
	linux-hexagon@vger.kernel.org, linux-sh@vger.kernel.org,
	linux-um@lists.infradead.org, linux-mips@vger.kernel.org,
	linux-csky@vger.kernel.org,
	"Vishal Moola \(Oracle\)" <vishal.moola@gmail.com>,
	linux-mm@kvack.org, linux-m68k@lists.linux-m68k.org,
	loongarch@lists.linux.dev, sparclinux@vger.kernel.org,
	xen-devel@lists.xenproject.org, linux-riscv@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 18/34] mm: Remove page table members from struct page
Date: Wed, 31 May 2023 14:30:16 -0700	[thread overview]
Message-ID: <20230531213032.25338-19-vishal.moola@gmail.com> (raw)
In-Reply-To: <20230531213032.25338-1-vishal.moola@gmail.com>

The page table members are now split out into their own ptdesc struct.
Remove them from struct page.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
---
 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


  parent reply	other threads:[~2023-05-31 21:47 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-31 21:29 [PATCH v3 00/34] Split ptdesc from struct page Vishal Moola (Oracle)
2023-05-31 21:29 ` [PATCH v3 01/34] mm: Add PAGE_TYPE_OP folio functions Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 02/34] s390: Use _pt_s390_gaddr for gmap address tracking Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 03/34] s390: Use pt_frag_refcount for pagetables Vishal Moola (Oracle)
2023-06-01 13:19   ` Gerald Schaefer
2023-06-01 20:43     ` Vishal Moola
2023-05-31 21:30 ` [PATCH v3 04/34] pgtable: Create struct ptdesc Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 05/34] mm: add utility functions for ptdesc Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 06/34] mm: Convert pmd_pgtable_page() to pmd_ptdesc() Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 07/34] mm: Convert ptlock_alloc() to use ptdescs Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 08/34] mm: Convert ptlock_ptr() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 09/34] mm: Convert pmd_ptlock_init() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 10/34] mm: Convert ptlock_init() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 11/34] mm: Convert pmd_ptlock_free() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 12/34] mm: Convert ptlock_free() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 14/34] powerpc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 15/34] x86: " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 16/34] s390: Convert various gmap " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 17/34] s390: Convert various pgalloc " Vishal Moola (Oracle)
2023-05-31 21:30 ` Vishal Moola (Oracle) [this message]
2023-05-31 21:30 ` [PATCH v3 19/34] pgalloc: Convert various " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 20/34] arm: " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 21/34] arm64: " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 22/34] csky: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-06-01  4:36   ` Guo Ren
2023-05-31 21:30 ` [PATCH v3 23/34] hexagon: " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 24/34] loongarch: Convert various functions " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 25/34] m68k: " Vishal Moola (Oracle)
2023-06-01  7:40   ` Geert Uytterhoeven
2023-06-01  8:20     ` Vishal Moola
2023-06-01 14:18   ` kernel test robot
2023-05-31 21:30 ` [PATCH v3 26/34] mips: " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 27/34] nios2: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 28/34] openrisc: " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 29/34] riscv: Convert alloc_{pmd, pte}_late() " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 30/34] sh: Convert pte_free_tlb() " Vishal Moola (Oracle)
2023-06-01  7:20   ` Geert Uytterhoeven
2023-06-01  7:28     ` John Paul Adrian Glaubitz
2023-06-01  7:42       ` Geert Uytterhoeven
2023-06-01  7:46         ` John Paul Adrian Glaubitz
2023-06-01  8:22       ` Vishal Moola
2023-06-08 10:12   ` John Paul Adrian Glaubitz
2023-05-31 21:30 ` [PATCH v3 31/34] sparc64: Convert various functions " Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 32/34] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 33/34] um: Convert {pmd, pte}_free_tlb() to use ptdescs Vishal Moola (Oracle)
2023-05-31 21:30 ` [PATCH v3 34/34] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Vishal Moola (Oracle)

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