xip: export xip_file_fault

@@ -218,7 +218,7 @@ retry:
  *
  * 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;

@@ -296,6 +296,7 @@ out:
 		return ret;
 	}
 }
+EXPORT_SYMBOL_GPL(xip_file_fault);
 
 static const struct vm_operations_struct xip_file_vm_ops = {
 	.fault	= xip_file_fault,

@@ -409,6 +409,7 @@ struct pipe_inode_info;
 struct poll_table_struct;
 struct kstatfs;
 struct vm_area_struct;
+struct vm_fault;
 struct vfsmount;
 struct cred;
 

@@ -2403,6 +2404,7 @@ extern int nonseekable_open(struct inode
 extern ssize_t xip_file_read(struct file *filp, char __user *buf, size_t len,
 			     loff_t *ppos);
 extern int xip_file_mmap(struct file * file, struct vm_area_struct * vma);
+extern int xip_file_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 extern ssize_t xip_file_write(struct file *filp, const char __user *buf,
 			      size_t len, loff_t *ppos);
 extern int xip_truncate_page(struct address_space *mapping, loff_t from);