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[S390] vmemmap: use clear_table to initialise page tables.
Always use clear_table to initialise page tables. The overlapping memcpy is just a leftover of a previous version that wasn't fully converted to clear_table. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -77,8 +77,7 @@ static inline pud_t *vmem_pud_alloc(void)
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pud = vmem_alloc_pages(2);
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pud = vmem_alloc_pages(2);
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if (!pud)
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if (!pud)
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return NULL;
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return NULL;
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pud_val(*pud) = _REGION3_ENTRY_EMPTY;
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clear_table((unsigned long *) pud, _REGION3_ENTRY_EMPTY, PAGE_SIZE * 4);
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memcpy(pud + 1, pud, (PTRS_PER_PUD - 1)*sizeof(pud_t));
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#endif
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#endif
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return pud;
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return pud;
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}
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}
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@ -91,7 +90,7 @@ static inline pmd_t *vmem_pmd_alloc(void)
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pmd = vmem_alloc_pages(2);
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pmd = vmem_alloc_pages(2);
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if (!pmd)
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if (!pmd)
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return NULL;
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return NULL;
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clear_table((unsigned long *) pmd, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE*4);
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clear_table((unsigned long *) pmd, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE * 4);
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#endif
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#endif
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return pmd;
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return pmd;
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}
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}
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