From 5aa29975e81851b7d48cb79c0c95d95360bfd9a6 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 17 May 2016 12:17:51 +0200
Subject: s390/vmem: make use of pte_clear()

Use pte_clear() instead of open-coding it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@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 2020ef8..4badd82 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -148,9 +148,7 @@ static void vmem_remove_range(unsigned long start, unsigned long size)
 	pud_t *pu_dir;
 	pmd_t *pm_dir;
 	pte_t *pt_dir;
-	pte_t  pte;
 
-	pte_val(pte) = _PAGE_INVALID;
 	while (address < end) {
 		pg_dir = pgd_offset_k(address);
 		if (pgd_none(*pg_dir)) {
@@ -178,7 +176,7 @@ static void vmem_remove_range(unsigned long start, unsigned long size)
 			continue;
 		}
 		pt_dir = pte_offset_kernel(pm_dir, address);
-		*pt_dir = pte;
+		pte_clear(&init_mm, address, pt_dir);
 		address += PAGE_SIZE;
 	}
 	flush_tlb_kernel_range(start, end);
-- 
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