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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/m68k/include/asm/mmu_context.h
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@@ -100,6 +100,8 @@
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 	struct mm_struct *mm;
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 	int asid;
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 	pgd_t *pgd;
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+	p4d_t *p4d;
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+	pud_t *pud;
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 	pmd_t *pmd;
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 	pte_t *pte;
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 	unsigned long mmuar;
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@@ -127,7 +129,15 @@
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 	if (pgd_none(*pgd))
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 		goto bug;
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-	pmd = pmd_offset(pgd, mmuar);
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+	p4d = p4d_offset(pgd, mmuar);
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+	if (p4d_none(*p4d))
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+		goto bug;
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+
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+	pud = pud_offset(p4d, mmuar);
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+	if (pud_none(*pud))
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+		goto bug;
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+
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+	pmd = pmd_offset(pud, mmuar);
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 	if (pmd_none(*pmd))
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 		goto bug;
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..
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@@ -212,7 +222,7 @@
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 #include <asm/setup.h>
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 #include <asm/page.h>
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-#include <asm/pgalloc.h>
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+#include <asm/cacheflush.h>
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 static inline int init_new_context(struct task_struct *tsk,
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 				   struct mm_struct *mm)