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authorHeiko Carstens <heiko.carstens@de.ibm.com>2013-02-16 12:42:35 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-02-28 09:37:06 +0100
commit17ea345a474925ad0da2ad5a8791cd5443301667 (patch)
tree5b9d0c659eed1d632016aaf2c13c765f13823a01 /arch/s390/mm
parent1819ed1f06ade476b701ff764e6cd84a36aee8de (diff)
downloadlinux-17ea345a474925ad0da2ad5a8791cd5443301667.tar.gz
s390/mm: ignore change bit for vmemmap
Add hint to the page tables that we don't care about the change bit
in storage keys that belong to vmemmap pages.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm')
-rw-r--r--arch/s390/mm/vmem.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index e21aaf4f5cb6..ffab84db6907 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -236,7 +236,8 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node)
 				if (!new_page)
 					goto out;
 				pmd_val(*pm_dir) = __pa(new_page) |
-					_SEGMENT_ENTRY | _SEGMENT_ENTRY_LARGE;
+					_SEGMENT_ENTRY | _SEGMENT_ENTRY_LARGE |
+					_SEGMENT_ENTRY_CO;
 				address = (address + PMD_SIZE) & PMD_MASK;
 				continue;
 			}