From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 30 Apr 2008 11:38:44 +0000 (+0200)
Subject: [S390] vmemmap: use clear_table to initialise page tables.
X-Git-Tag: v2.6.26-rc1~107^2~6
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=8fc63658681f32e6e29f6d1138de933d7272e0ec;p=linux-2.6-omap-h63xx.git

[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>
---

diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index 35d90a4720f..3ffc0211dc8 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -77,8 +77,7 @@ static inline pud_t *vmem_pud_alloc(void)
 	pud = vmem_alloc_pages(2);
 	if (!pud)
 		return NULL;
-	pud_val(*pud) = _REGION3_ENTRY_EMPTY;
-	memcpy(pud + 1, pud, (PTRS_PER_PUD - 1)*sizeof(pud_t));
+	clear_table((unsigned long *) pud, _REGION3_ENTRY_EMPTY, PAGE_SIZE * 4);
 #endif
 	return pud;
 }
@@ -91,7 +90,7 @@ static inline pmd_t *vmem_pmd_alloc(void)
 	pmd = vmem_alloc_pages(2);
 	if (!pmd)
 		return NULL;
-	clear_table((unsigned long *) pmd, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE*4);
+	clear_table((unsigned long *) pmd, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE * 4);
 #endif
 	return pmd;
 }