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authorJeremy Fitzhardinge <jeremy@goop.org>2008-03-17 16:37:14 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-24 23:57:31 +0200
commit85958b465c2e0de315575b1d3d7e7c2ce7126880 (patch)
treec1d6a062bf74b8e172757f4f4259ac567043b8a1 /include
parent68db065c845bd9d0eb96946ab104b4c82d0ae9da (diff)
x86: unify pgd ctor/dtor
All pagetables need fundamentally the same setup and destruction, so just use the same code for everything. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86/pgtable.h16
-rw-r--r--include/asm-x86/pgtable_32.h15
-rw-r--r--include/asm-x86/pgtable_64.h2
3 files changed, 17 insertions, 16 deletions
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index e61075e70a5..b8a08bd7bd4 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -438,6 +438,22 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm,
pte_update(mm, addr, ptep);
}
+/*
+ * clone_pgd_range(pgd_t *dst, pgd_t *src, int count);
+ *
+ * dst - pointer to pgd range anwhere on a pgd page
+ * src - ""
+ * count - the number of pgds to copy.
+ *
+ * dst and src can be on the same page, but the range must not overlap,
+ * and must not cross a page boundary.
+ */
+static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
+{
+ memcpy(dst, src, count * sizeof(pgd_t));
+}
+
+
#include <asm-generic/pgtable.h>
#endif /* __ASSEMBLY__ */
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index cc52da32fbe..168b6447cf1 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -106,21 +106,6 @@ extern int pmd_bad(pmd_t pmd);
#endif
/*
- * clone_pgd_range(pgd_t *dst, pgd_t *src, int count);
- *
- * dst - pointer to pgd range anwhere on a pgd page
- * src - ""
- * count - the number of pgds to copy.
- *
- * dst and src can be on the same page, but the range must not overlap,
- * and must not cross a page boundary.
- */
-static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
-{
- memcpy(dst, src, count * sizeof(pgd_t));
-}
-
-/*
* Macro to mark a page protection value as "uncacheable".
* On processors which do not support it, this is a no-op.
*/
diff --git a/include/asm-x86/pgtable_64.h b/include/asm-x86/pgtable_64.h
index 9fd87d0b647..a3bbf8766c1 100644
--- a/include/asm-x86/pgtable_64.h
+++ b/include/asm-x86/pgtable_64.h
@@ -24,7 +24,7 @@ extern void paging_init(void);
#endif /* !__ASSEMBLY__ */
-#define SHARED_KERNEL_PMD 1
+#define SHARED_KERNEL_PMD 0
/*
* PGDIR_SHIFT determines what a top-level page table entry can map