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

Message ID	20230417205048.15870-9-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, "Vishal Moola (Oracle)" <vishal.moola@gmail.com> Subject: [PATCH 08/33] mm: Convert pmd_ptlock_init() to use ptdescs Date: Mon, 17 Apr 2023 13:50:23 -0700 Message-Id: <20230417205048.15870-9-vishal.moola@gmail.com> In-Reply-To: <20230417205048.15870-1-vishal.moola@gmail.com> References: <20230417205048.15870-1-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 [00/33] Split ptdesc from struct page [01/33] s390: Use _pt_s390_gaddr for gmap address tracking [02/33] s390: Use pt_frag_refcount for pagetables [03/33] pgtable: Create struct ptdesc [04/33] mm: add utility functions for ptdesc [05/33] mm: Convert pmd_pgtable_page() to pmd_ptdesc() [06/33] mm: Convert ptlock_alloc() to use ptdescs [07/33] mm: Convert ptlock_ptr() to use ptdescs [08/33] mm: Convert pmd_ptlock_init() to use ptdescs [09/33] mm: Convert ptlock_init() to use ptdescs [10/33] mm: Convert pmd_ptlock_free() to use ptdescs [11/33] mm: Convert ptlock_free() to use ptdescs [12/33] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} [13/33] powerpc: Convert various functions to use ptdescs [14/33] x86: Convert various functions to use ptdescs [15/33] s390: Convert various gmap functions to use ptdescs [16/33] s390: Convert various pgalloc functions to use ptdescs [17/33] mm: Remove page table members from struct page [18/33] pgalloc: Convert various functions to use ptdescs [19/33] arm: Convert various functions to use ptdescs [20/33] arm64: Convert various functions to use ptdescs [21/33] csky: Convert __pte_free_tlb() to use ptdescs [22/33] hexagon: Convert __pte_free_tlb() to use ptdescs [23/33] loongarch: Convert various functions to use ptdescs [24/33] m68k: Convert various functions to use ptdescs [25/33] mips: Convert various functions to use ptdescs [26/33] nios2: Convert __pte_free_tlb() to use ptdescs [27/33] openrisc: Convert __pte_free_tlb() to use ptdescs [28/33] riscv: Convert alloc_{pmd, pte}_late() to use ptdescs [29/33] sh: Convert pte_free_tlb() to use ptdescs [30/33] sparc64: Convert various functions to use ptdescs [31/33] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents [32/33] um: Convert {pmd, pte}_free_tlb() to use ptdescs [33/33] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers

Message ID

20230417205048.15870-9-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,
	"Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Subject: [PATCH 08/33] mm: Convert pmd_ptlock_init() to use ptdescs
Date: Mon, 17 Apr 2023 13:50:23 -0700
Message-Id: <20230417205048.15870-9-vishal.moola@gmail.com>
In-Reply-To: <20230417205048.15870-1-vishal.moola@gmail.com>
References: <20230417205048.15870-1-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 April 17, 2023, 8:50 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>
---
 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 ed8dd0464841..7eb562909b2c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2903,12 +2903,12 @@  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)
@@ -2928,7 +2928,7 @@  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)
@@ -2944,7 +2944,7 @@  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);

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

Commit Message

Patch