[v1,02/11] nios2/pgtable: define PFN_PTE_SHIFT

Message ID	20240122194200.381241-3-david@redhat.com (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> From: David Hildenbrand <david@redhat.com> To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, David Hildenbrand <david@redhat.com>, Andrew Morton <akpm@linux-foundation.org>, Matthew Wilcox <willy@infradead.org>, Ryan Roberts <ryan.roberts@arm.com>, Russell King <linux@armlinux.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Dinh Nguyen <dinguyen@kernel.org>, Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>, Christophe Leroy <christophe.leroy@csgroup.eu>, "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>, "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Alexander Gordeev <agordeev@linux.ibm.com>, Gerald Schaefer <gerald.schaefer@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Sven Schnelle <svens@linux.ibm.com>, "David S. Miller" <davem@davemloft.net>, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org Subject: [PATCH v1 02/11] nios2/pgtable: define PFN_PTE_SHIFT Date: Mon, 22 Jan 2024 20:41:51 +0100 Message-ID: <20240122194200.381241-3-david@redhat.com> In-Reply-To: <20240122194200.381241-1-david@redhat.com> References: <20240122194200.381241-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	mm/memory: optimize fork() with PTE-mapped THP \| expand [v1,00/11] mm/memory: optimize fork() with PTE-mapped THP [v1,01/11] arm/pgtable: define PFN_PTE_SHIFT on arm and arm64 [v1,02/11] nios2/pgtable: define PFN_PTE_SHIFT [v1,03/11] powerpc/pgtable: define PFN_PTE_SHIFT [v1,04/11] risc: pgtable: define PFN_PTE_SHIFT [v1,05/11] s390/pgtable: define PFN_PTE_SHIFT [v1,06/11] sparc/pgtable: define PFN_PTE_SHIFT [v1,07/11] mm/memory: factor out copying the actual PTE in copy_present_pte() [v1,08/11] mm/memory: pass PTE to copy_present_pte() [v1,09/11] mm/memory: optimize fork() with PTE-mapped THP [v1,10/11] mm/memory: ignore dirty/accessed/soft-dirty bits in folio_pte_batch() [v1,11/11] mm/memory: ignore writable bit in folio_pte_batch()

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20240122194200.381241-3-david@redhat.com (mailing list archive)

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Headers

From: David Hildenbrand <david@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: linux-mm@kvack.org,
	David Hildenbrand <david@redhat.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Matthew Wilcox <willy@infradead.org>,
	Ryan Roberts <ryan.roberts@arm.com>,
	Russell King <linux@armlinux.org.uk>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Dinh Nguyen <dinguyen@kernel.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	"Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
	"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexander Gordeev <agordeev@linux.ibm.com>,
	Gerald Schaefer <gerald.schaefer@linux.ibm.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	"David S. Miller" <davem@davemloft.net>,
	linux-arm-kernel@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org,
	linux-riscv@lists.infradead.org,
	linux-s390@vger.kernel.org,
	sparclinux@vger.kernel.org
Subject: [PATCH v1 02/11] nios2/pgtable: define PFN_PTE_SHIFT
Date: Mon, 22 Jan 2024 20:41:51 +0100
Message-ID: <20240122194200.381241-3-david@redhat.com>
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Series

mm/memory: optimize fork() with PTE-mapped THP | expand

Commit Message

David Hildenbrand Jan. 22, 2024, 7:41 p.m. UTC

We want to make use of pte_next_pfn() outside of set_ptes(). Let's
simpliy define PFN_PTE_SHIFT, required by pte_next_pfn().

Signed-off-by: David Hildenbrand <david@redhat.com>
---
 arch/nios2/include/asm/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/nios2/include/asm/pgtable.h b/arch/nios2/include/asm/pgtable.h
index 5144506dfa693..d052dfcbe8d3a 100644
--- a/arch/nios2/include/asm/pgtable.h
+++ b/arch/nios2/include/asm/pgtable.h
@@ -178,6 +178,8 @@  static inline void set_pte(pte_t *ptep, pte_t pteval)
 	*ptep = pteval;
 }
 
+#define PFN_PTE_SHIFT		0
+
 static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
 		pte_t *ptep, pte_t pte, unsigned int nr)
 {

[v1,02/11] nios2/pgtable: define PFN_PTE_SHIFT

Commit Message

Patch