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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-14 14:29:49 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-14 14:29:49 +1000
commit11c2d8174ed3dc4f1971564732689b4a39129702 (patch)
treeac00daa548ea8ac24ae7a5c8062312e335ab9858 /include/asm-s390/pgtable.h
parentcde274c0c789404df8ece3f9e7d6506caf0127e2 (diff)
parentbce7f793daec3e65ec5c5705d2457b81fe7b5725 (diff)
downloadop-kernel-dev-11c2d8174ed3dc4f1971564732689b4a39129702.zip
op-kernel-dev-11c2d8174ed3dc4f1971564732689b4a39129702.tar.gz
Merge commit 'origin/HEAD' into test-merge
Manual fixup of include/asm-powerpc/pgtable-ppc64.h
Diffstat (limited to 'include/asm-s390/pgtable.h')
-rw-r--r--include/asm-s390/pgtable.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h
index c7f4f8e..bd0ea19 100644
--- a/include/asm-s390/pgtable.h
+++ b/include/asm-s390/pgtable.h
@@ -223,6 +223,9 @@ extern char empty_zero_page[PAGE_SIZE];
#define _PAGE_SPECIAL 0x004 /* SW associated with special page */
#define __HAVE_ARCH_PTE_SPECIAL
+/* Set of bits not changed in pte_modify */
+#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_SPECIAL)
+
/* Six different types of pages. */
#define _PAGE_TYPE_EMPTY 0x400
#define _PAGE_TYPE_NONE 0x401
@@ -681,7 +684,7 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt
*/
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
- pte_val(pte) &= PAGE_MASK;
+ pte_val(pte) &= _PAGE_CHG_MASK;
pte_val(pte) |= pgprot_val(newprot);
return pte;
}
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