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0d0928f587
The current patches are old, update them from mainline. Backports taken from https://github.com/yuzhaogoogle/linux/commits/mglru-5.15 Tested-by: Kazuki H <kazukih0205@gmail.com> #mt7622/Linksys E8450 UBI Signed-off-by: Kazuki H <kazukih0205@gmail.com>
112 lines
3.7 KiB
Diff
112 lines
3.7 KiB
Diff
From c5ec455ebd2b488d91de9d8915a0c8036a2a04dd Mon Sep 17 00:00:00 2001
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From: Juergen Gross <jgross@suse.com>
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Date: Wed, 30 Nov 2022 14:49:41 -0800
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Subject: [PATCH 17/29] mm: add dummy pmd_young() for architectures not having
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it
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In order to avoid #ifdeffery add a dummy pmd_young() implementation as a
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fallback. This is required for the later patch "mm: introduce
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arch_has_hw_nonleaf_pmd_young()".
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Link: https://lkml.kernel.org/r/fd3ac3cd-7349-6bbd-890a-71a9454ca0b3@suse.com
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Signed-off-by: Juergen Gross <jgross@suse.com>
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Acked-by: Yu Zhao <yuzhao@google.com>
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Cc: Borislav Petkov <bp@alien8.de>
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Cc: Dave Hansen <dave.hansen@linux.intel.com>
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Cc: Geert Uytterhoeven <geert@linux-m68k.org>
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Cc: "H. Peter Anvin" <hpa@zytor.com>
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Cc: Ingo Molnar <mingo@redhat.com>
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Cc: Sander Eikelenboom <linux@eikelenboom.it>
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Cc: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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---
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arch/mips/include/asm/pgtable.h | 1 +
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arch/riscv/include/asm/pgtable.h | 1 +
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arch/s390/include/asm/pgtable.h | 1 +
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arch/sparc/include/asm/pgtable_64.h | 1 +
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arch/x86/include/asm/pgtable.h | 1 +
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include/linux/pgtable.h | 7 +++++++
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6 files changed, 12 insertions(+)
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diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
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index 804889b70965..89ab8b4cf971 100644
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--- a/arch/mips/include/asm/pgtable.h
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+++ b/arch/mips/include/asm/pgtable.h
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@@ -632,6 +632,7 @@ static inline pmd_t pmd_mkdirty(pmd_t pmd)
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return pmd;
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}
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+#define pmd_young pmd_young
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static inline int pmd_young(pmd_t pmd)
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{
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return !!(pmd_val(pmd) & _PAGE_ACCESSED);
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diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
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index 39b550310ec6..4a64e03dcdd4 100644
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--- a/arch/riscv/include/asm/pgtable.h
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+++ b/arch/riscv/include/asm/pgtable.h
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@@ -531,6 +531,7 @@ static inline int pmd_dirty(pmd_t pmd)
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return pte_dirty(pmd_pte(pmd));
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}
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+#define pmd_young pmd_young
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static inline int pmd_young(pmd_t pmd)
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{
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return pte_young(pmd_pte(pmd));
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diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
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index b61426c9ef17..55ff4f22da2d 100644
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--- a/arch/s390/include/asm/pgtable.h
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+++ b/arch/s390/include/asm/pgtable.h
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@@ -748,6 +748,7 @@ static inline int pmd_dirty(pmd_t pmd)
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return (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) != 0;
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}
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+#define pmd_young pmd_young
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static inline int pmd_young(pmd_t pmd)
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{
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return (pmd_val(pmd) & _SEGMENT_ENTRY_YOUNG) != 0;
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diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
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index 4679e45c8348..bfd10179c137 100644
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--- a/arch/sparc/include/asm/pgtable_64.h
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+++ b/arch/sparc/include/asm/pgtable_64.h
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@@ -712,6 +712,7 @@ static inline unsigned long pmd_dirty(pmd_t pmd)
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return pte_dirty(pte);
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}
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+#define pmd_young pmd_young
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static inline unsigned long pmd_young(pmd_t pmd)
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{
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pte_t pte = __pte(pmd_val(pmd));
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diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
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index 01a1763123ff..c4b64ee357fd 100644
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--- a/arch/x86/include/asm/pgtable.h
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+++ b/arch/x86/include/asm/pgtable.h
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@@ -136,6 +136,7 @@ static inline int pmd_dirty(pmd_t pmd)
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return pmd_flags(pmd) & _PAGE_DIRTY;
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}
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+#define pmd_young pmd_young
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static inline int pmd_young(pmd_t pmd)
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{
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return pmd_flags(pmd) & _PAGE_ACCESSED;
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diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
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index e6889556e0bf..dec3d890e814 100644
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--- a/include/linux/pgtable.h
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+++ b/include/linux/pgtable.h
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@@ -164,6 +164,13 @@ static inline pte_t *virt_to_kpte(unsigned long vaddr)
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return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr);
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}
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+#ifndef pmd_young
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+static inline int pmd_young(pmd_t pmd)
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+{
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+ return 0;
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+}
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+#endif
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+
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#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
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extern int ptep_set_access_flags(struct vm_area_struct *vma,
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unsigned long address, pte_t *ptep,
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--
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2.40.0
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