add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/arch/sh/mm/pgtable.c
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@@ -2,8 +2,6 @@
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 #include <linux/mm.h>
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 #include <linux/slab.h>
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-#define PGALLOC_GFP GFP_KERNEL | __GFP_ZERO
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-
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 static struct kmem_cache *pgd_cachep;
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 #if PAGETABLE_LEVELS > 2
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 static struct kmem_cache *pmd_cachep;
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@@ -13,6 +11,7 @@
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 {
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 	pgd_t *pgd = x;
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+	memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
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 	memcpy(pgd + USER_PTRS_PER_PGD,
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 	       swapper_pg_dir + USER_PTRS_PER_PGD,
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 	       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
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@@ -32,7 +31,7 @@
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 pgd_t *pgd_alloc(struct mm_struct *mm)
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 {
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-	return kmem_cache_alloc(pgd_cachep, PGALLOC_GFP);
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+	return kmem_cache_alloc(pgd_cachep, GFP_KERNEL);
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 }
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 void pgd_free(struct mm_struct *mm, pgd_t *pgd)
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@@ -48,7 +47,7 @@
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 pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address)
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 {
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-	return kmem_cache_alloc(pmd_cachep, PGALLOC_GFP);
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+	return kmem_cache_alloc(pmd_cachep, GFP_KERNEL | __GFP_ZERO);
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 }
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 void pmd_free(struct mm_struct *mm, pmd_t *pmd)