X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-ppc64%2Fpgalloc.h;h=29b5727ef39b81621374256f44758ed2ab5a9764;hb=746550cff061581f89c687ada8523670768364f2;hp=251bbd9a535cc0971a63c22a48472b1fa574c69d;hpb=86090fcac5e27b630656fe3d963a6b80e26dac44;p=linux-2.6.git

diff --git a/include/asm-ppc64/pgalloc.h b/include/asm-ppc64/pgalloc.h
index 251bbd9a5..29b5727ef 100644
--- a/include/asm-ppc64/pgalloc.h
+++ b/include/asm-ppc64/pgalloc.h
@@ -10,6 +10,11 @@
 
 extern kmem_cache_t *zero_cache;
 
+/* Dummy functions since we don't support execshield on ppc */
+#define arch_add_exec_range(mm, limit) do { ; } while (0)
+#define arch_flush_exec_range(mm)      do { ; } while (0)
+#define arch_remove_exec_range(mm, limit) do { ; } while (0)
+
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -48,28 +53,43 @@ pmd_free(pmd_t *pmd)
 	pmd_populate_kernel(mm, pmd, page_address(pte_page))
 
 static inline pte_t *
-pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
+pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
-	return kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
+	pte_t *pte;
+	pte = kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
+	if (pte) {
+		struct page *ptepage = virt_to_page(pte);
+		ptepage->mapping = (void *) mm;
+		ptepage->index = address & PMD_MASK;
+	}
+	return pte;
 }
 
 static inline struct page *
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	pte_t *pte = pte_alloc_one_kernel(mm, address);
-
-	if (pte)
-		return virt_to_page(pte);
-
+	pte_t *pte;
+	pte = kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
+	if (pte) {
+		struct page *ptepage = virt_to_page(pte);
+		ptepage->mapping = (void *) mm;
+		ptepage->index = address & PMD_MASK;
+		return ptepage;
+	}
 	return NULL;
 }
 		
 static inline void pte_free_kernel(pte_t *pte)
 {
+	virt_to_page(pte)->mapping = NULL;
 	kmem_cache_free(zero_cache, pte);
 }
 
-#define pte_free(pte_page)	pte_free_kernel(page_address(pte_page))
+static inline void pte_free(struct page *ptepage)
+{
+	ptepage->mapping = NULL;
+	kmem_cache_free(zero_cache, page_address(ptepage));
+}
 
 struct pte_freelist_batch
 {