nommu: Provide vmalloc_exec().

Now that SH has switched to vmalloc_exec() for PAGE_KERNEL_EXEC usage, it's apparent that nommu has no vmalloc_exec() definition of its own. Stub in the one from mm/vmalloc.c. Signed-off-by: Paul Mundt <lethal@linux-sh.org>

nommu: Provide vmalloc_exec().
Now that SH has switched to vmalloc_exec() for PAGE_KERNEL_EXEC usage, it's apparent that nommu has no vmalloc_exec() definition of its own. Stub in the one from mm/vmalloc.c. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Paul Mundt
1 parent d8eb2fab18
Showing 1 changed file with 21 additions and 0 deletions Side-by-side Diff
mm/nommu.c
@@ -266,6 +266,27 @@
 }
 EXPORT_SYMBOL(vmalloc_node);
  
+#ifndef PAGE_KERNEL_EXEC
+# define PAGE_KERNEL_EXEC PAGE_KERNEL
+#endif
+
+/**
+ *	vmalloc_exec  -  allocate virtually contiguous, executable memory
+ *	@size:		allocation size
+ *
+ *	Kernel-internal function to allocate enough pages to cover @size
+ *	the page level allocator and map them into contiguous and
+ *	executable kernel virtual space.
+ *
+ *	For tight control over page level allocator and protection flags
+ *	use __vmalloc() instead.
+ */
+
+void *vmalloc_exec(unsigned long size)
+{
+	return __vmalloc(size, GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
+}
+
 /**
  * vmalloc_32  -  allocate virtually contiguous memory (32bit addressable)
  *	@size:		allocation size
...	...	@@ -266,6 +266,27 @@
266	266	}
267	267	EXPORT_SYMBOL(vmalloc_node);
268	268
	269	+#ifndef PAGE_KERNEL_EXEC
	270	+# define PAGE_KERNEL_EXEC PAGE_KERNEL
	271	+#endif
	272	+
	273	+/**
	274	+ * vmalloc_exec - allocate virtually contiguous, executable memory
	275	+ * @size: allocation size
	276	+ *
	277	+ * Kernel-internal function to allocate enough pages to cover @size
	278	+ * the page level allocator and map them into contiguous and
	279	+ * executable kernel virtual space.
	280	+ *
	281	+ * For tight control over page level allocator and protection flags
	282	+ * use __vmalloc() instead.
	283	+ */
	284	+
	285	+void *vmalloc_exec(unsigned long size)
	286	+{
	287	+ return __vmalloc(size, GFP_KERNEL \| __GFP_HIGHMEM, PAGE_KERNEL_EXEC);
	288	+}
	289	+
269	290	/**
270	291	* vmalloc_32 - allocate virtually contiguous memory (32bit addressable)
271	292	* @size: allocation size