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authorJan Glauber <jang@linux.vnet.ibm.com>2011-04-20 10:15:32 +0200
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2011-04-20 10:15:43 +0200
commite4c031b4f2515e9531d71c8aa779799231dbcd0c (patch)
tree1fc12df988d36cf50500d2014625a5e2ca8a15fb /arch/s390/mm/pageattr.c
parentc708c57e247775928b9a6bce7b4d8d14883bf39b (diff)
downloadop-kernel-dev-e4c031b4f2515e9531d71c8aa779799231dbcd0c.zip
op-kernel-dev-e4c031b4f2515e9531d71c8aa779799231dbcd0c.tar.gz
[S390] fix page table walk for changing page attributes
The page table walk for changing page attributes used the wrong address for pgd/pud/pmd lookups if the range was bigger than a pmd entry. Fix the lookup by using the correct address. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/mm/pageattr.c')
-rw-r--r--arch/s390/mm/pageattr.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 122ffbd..0607e4b 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -24,12 +24,13 @@ static void change_page_attr(unsigned long addr, int numpages,
WARN_ON_ONCE(1);
continue;
}
- ptep = pte_offset_kernel(pmdp, addr + i * PAGE_SIZE);
+ ptep = pte_offset_kernel(pmdp, addr);
pte = *ptep;
pte = set(pte);
- ptep_invalidate(&init_mm, addr + i * PAGE_SIZE, ptep);
+ ptep_invalidate(&init_mm, addr, ptep);
*ptep = pte;
+ addr += PAGE_SIZE;
}
}
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