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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
parent1819ed1f06ade476b701ff764e6cd84a36aee8de (diff)
downloadop-kernel-dev-17ea345a474925ad0da2ad5a8791cd5443301667.zip
op-kernel-dev-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>
-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 e21aaf4..ffab84d 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;
}
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