We'll need this for AXFS.  The equivalent function in filemap.c is exported.
Signed-off-by: Jared Hulbert <jaredeh@gmail.com>

---

 include/linux/mm.h |    4 ++++

 mm/filemap_xip.c   |    3 ++-

 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h

index 72a15dc..2be5c22 100644

--- a/include/linux/mm.h

+++ b/include/linux/mm.h

@@ -161,6 +161,10 @@ struct vm_fault {

 					 */

 };
+#ifdef CONFIG_FS_XIP

+extern int xip_file_fault(struct vm_area_struct *vma, struct vm_fault *vmf);

+#endif

+

 /*

  * These are the virtual MM functions - opening of an area, closing and

  * unmapping it (needed to keep files on disk up-to-date etc), pointer

diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c

index 380ab40..ab2f174 100644

--- a/mm/filemap_xip.c

+++ b/mm/filemap_xip.c

@@ -206,7 +206,7 @@ __xip_unmap (struct address_space * mapping,

  *

  * This function is derived from filemap_fault, but used for execute in place

  */

-static int xip_file_fault(struct vm_area_struct *vma, struct vm_fault *vmf)

+int xip_file_fault(struct vm_area_struct *vma, struct vm_fault *vmf)

 {

 	struct file *file = vma->vm_file;

 	struct address_space *mapping = file->f_mapping;

@@ -262,6 +262,7 @@ found:

 		return 0;

 	}

 }

+EXPORT_SYMBOL_GPL(xip_file_fault);
 static struct vm_operations_struct xip_file_vm_ops = {

 	.fault	= xip_file_fault,
--

Acked-by: Carsten Otte <cotte@de.ibm.com>

--

No need for #ifdef here as this function is compiled and exported in .c

--

--