---

yaml --- r: 173048 b: refs/heads/master c: 583140a h: refs/heads/master v: v3
git-mirror · Nov 16, 2009 · c80a92d · c80a92d
1 parent 7be4fa9
commit c80a92d
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Showing 3 changed files with 9 additions and 5 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a7c4c0d934c6cbc58de262d090d4a715445453f0
+refs/heads/master: 583140afb989f24d115e80be5c91e503b58ccfc0
diff --git a/trunk/arch/x86/kernel/machine_kexec_32.c b/trunk/arch/x86/kernel/machine_kexec_32.c
@@ -157,8 +157,7 @@ int machine_kexec_prepare(struct kimage *image)
 {
 	int error;
 
-	if (nx_enabled)
-		set_pages_x(image->control_code_page, 1);
+	set_pages_x(image->control_code_page, 1);
 	error = machine_kexec_alloc_page_tables(image);
 	if (error)
 		return error;
@@ -172,8 +171,7 @@ int machine_kexec_prepare(struct kimage *image)
  */
 void machine_kexec_cleanup(struct kimage *image)
 {
-	if (nx_enabled)
-		set_pages_nx(image->control_code_page, 1);
+	set_pages_nx(image->control_code_page, 1);
 	machine_kexec_free_page_tables(image);
 }
 

diff --git a/trunk/arch/x86/mm/pageattr.c b/trunk/arch/x86/mm/pageattr.c
@@ -1085,12 +1085,18 @@ EXPORT_SYMBOL(set_memory_array_wb);
 
 int set_memory_x(unsigned long addr, int numpages)
 {
+	if (!(__supported_pte_mask & _PAGE_NX))
+		return 0;
+
 	return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0);
 }
 EXPORT_SYMBOL(set_memory_x);
 
 int set_memory_nx(unsigned long addr, int numpages)
 {
+	if (!(__supported_pte_mask & _PAGE_NX))
+		return 0;
+
 	return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_NX), 0);
 }
 EXPORT_SYMBOL(set_memory_nx);