[v5,08/33] mm: Convert pmd_ptlock_init() to use ptdescs

Message ID	20230622205745.79707-9-vishal.moola@gmail.com (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com> To: Andrew Morton <akpm@linux-foundation.org>, Matthew Wilcox <willy@infradead.org> 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 <hughd@google.com>, "Vishal Moola (Oracle)" <vishal.moola@gmail.com>, Mike Rapoport <rppt@kernel.org> Subject: [PATCH v5 08/33] mm: Convert pmd_ptlock_init() to use ptdescs Date: Thu, 22 Jun 2023 13:57:20 -0700 Message-Id: <20230622205745.79707-9-vishal.moola@gmail.com> In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com> References: <20230622205745.79707-1-vishal.moola@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	Split ptdesc from struct page \| expand [v5,00/33] Split ptdesc from struct page [v5,01/33] mm: Add PAGE_TYPE_OP folio functions [v5,02/33] s390: Use _pt_s390_gaddr for gmap address tracking [v5,03/33] pgtable: Create struct ptdesc [v5,04/33] mm: add utility functions for ptdesc [v5,05/33] mm: Convert pmd_pgtable_page() to pmd_ptdesc() [v5,06/33] mm: Convert ptlock_alloc() to use ptdescs [v5,07/33] mm: Convert ptlock_ptr() to use ptdescs [v5,08/33] mm: Convert pmd_ptlock_init() to use ptdescs [v5,09/33] mm: Convert ptlock_init() to use ptdescs [v5,10/33] mm: Convert pmd_ptlock_free() to use ptdescs [v5,11/33] mm: Convert ptlock_free() to use ptdescs [v5,12/33] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} [v5,13/33] powerpc: Convert various functions to use ptdescs [v5,14/33] x86: Convert various functions to use ptdescs [v5,15/33] s390: Convert various gmap functions to use ptdescs [v5,16/33] s390: Convert various pgalloc functions to use ptdescs [v5,17/33] mm: Remove page table members from struct page [v5,18/33] pgalloc: Convert various functions to use ptdescs [v5,19/33] arm: Convert various functions to use ptdescs [v5,20/33] arm64: Convert various functions to use ptdescs [v5,21/33] csky: Convert __pte_free_tlb() to use ptdescs [v5,22/33] hexagon: Convert __pte_free_tlb() to use ptdescs [v5,23/33] loongarch: Convert various functions to use ptdescs [v5,24/33] m68k: Convert various functions to use ptdescs [v5,25/33] mips: Convert various functions to use ptdescs [v5,26/33] nios2: Convert __pte_free_tlb() to use ptdescs [v5,27/33] openrisc: Convert __pte_free_tlb() to use ptdescs [v5,28/33] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs [v5,29/33] sh: Convert pte_free_tlb() to use ptdescs [v5,30/33] sparc64: Convert various functions to use ptdescs [v5,31/33] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents [v5,32/33] um: Convert {pmd, pte}_free_tlb() to use ptdescs [v5,33/33] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers

Message ID

20230622205745.79707-9-vishal.moola@gmail.com (mailing list archive)

State

New

Headers

From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Matthew Wilcox <willy@infradead.org>
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 <hughd@google.com>,
	"Vishal Moola (Oracle)" <vishal.moola@gmail.com>,
	Mike Rapoport <rppt@kernel.org>
Subject: [PATCH v5 08/33] mm: Convert pmd_ptlock_init() to use ptdescs
Date: Thu, 22 Jun 2023 13:57:20 -0700
Message-Id: <20230622205745.79707-9-vishal.moola@gmail.com>
In-Reply-To: <20230622205745.79707-1-vishal.moola@gmail.com>
References: <20230622205745.79707-1-vishal.moola@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: owner-linux-mm@kvack.org
Precedence: bulk

Series

Split ptdesc from struct page | expand

Commit Message

Vishal Moola June 22, 2023, 8:57 p.m. UTC

This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
---
 include/linux/mm.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0b230d5d229a..1c4c6a7b69b3 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2926,12 +2926,12 @@  static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 	return ptlock_ptr(pmd_ptdesc(pmd));
 }
 
-static inline bool pmd_ptlock_init(struct page *page)
+static inline bool pmd_ptlock_init(struct ptdesc *ptdesc)
 {
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	page->pmd_huge_pte = NULL;
+	ptdesc->pmd_huge_pte = NULL;
 #endif
-	return ptlock_init(page);
+	return ptlock_init(ptdesc_page(ptdesc));
 }
 
 static inline void pmd_ptlock_free(struct page *page)
@@ -2951,7 +2951,7 @@  static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 	return &mm->page_table_lock;
 }
 
-static inline bool pmd_ptlock_init(struct page *page) { return true; }
+static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) { return true; }
 static inline void pmd_ptlock_free(struct page *page) {}
 
 #define pmd_huge_pte(mm, pmd) ((mm)->pmd_huge_pte)
@@ -2967,7 +2967,7 @@  static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
 
 static inline bool pgtable_pmd_page_ctor(struct page *page)
 {
-	if (!pmd_ptlock_init(page))
+	if (!pmd_ptlock_init(page_ptdesc(page)))
 		return false;
 	__SetPageTable(page);
 	inc_lruvec_page_state(page, NR_PAGETABLE);

[v5,08/33] mm: Convert pmd_ptlock_init() to use ptdescs

Commit Message

Patch