+ arm-pgtable-define-pfn_pte_shift.patch added to mm-unstable branch

+ arm-pgtable-define-pfn_pte_shift.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: arm/pgtable: define PFN_PTE_SHIFT
has been added to the -mm mm-unstable branch.  Its filename is
     arm-pgtable-define-pfn_pte_shift.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/arm-pgtable-define-pfn_pte_shift.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: David Hildenbrand <david@redhat.com>
Subject: arm/pgtable: define PFN_PTE_SHIFT
Date: Mon, 29 Jan 2024 13:46:36 +0100

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

Link: https://lkml.kernel.org/r/20240129124649.189745-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Tested-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Russell King (Oracle) <linux@armlinux.org.uk>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/arm/include/asm/pgtable.h |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm/include/asm/pgtable.h~arm-pgtable-define-pfn_pte_shift
+++ a/arch/arm/include/asm/pgtable.h
@@ -209,6 +209,8 @@ static inline void __sync_icache_dcache(
 extern void __sync_icache_dcache(pte_t pteval);
 #endif
 
+#define PFN_PTE_SHIFT		PAGE_SHIFT
+
 void set_ptes(struct mm_struct *mm, unsigned long addr,
 		      pte_t *ptep, pte_t pteval, unsigned int nr);
 #define set_ptes set_ptes
_

Patches currently in -mm which might be from david@redhat.com are

arm-pgtable-define-pfn_pte_shift.patch
nios2-pgtable-define-pfn_pte_shift.patch
powerpc-pgtable-define-pfn_pte_shift.patch
riscv-pgtable-define-pfn_pte_shift.patch
s390-pgtable-define-pfn_pte_shift.patch
sparc-pgtable-define-pfn_pte_shift.patch
mm-pgtable-make-pte_next_pfn-independent-of-set_ptes.patch
arm-mm-use-pte_next_pfn-in-set_ptes.patch
powerpc-mm-use-pte_next_pfn-in-set_ptes.patch
mm-memory-factor-out-copying-the-actual-pte-in-copy_present_pte.patch
mm-memory-pass-pte-to-copy_present_pte.patch
mm-memory-optimize-fork-with-pte-mapped-thp.patch
mm-memory-ignore-dirty-accessed-soft-dirty-bits-in-folio_pte_batch.patch
mm-memory-ignore-writable-bit-in-folio_pte_batch.patch