virtualbox/vbox_fix_4.10_api_changes.patch

Index: VirtualBox-5.1.14/src/VBox/Additions/linux/sharedfolders/lnkops.c
===================================================================
--- VirtualBox-5.1.14.orig/src/VBox/Additions/linux/sharedfolders/lnkops.c
+++ VirtualBox-5.1.14/src/VBox/Additions/linux/sharedfolders/lnkops.c
@@ -88,6 +88,31 @@ static const char *sf_get_link(struct de
 }
 # endif /* LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0) */
 
+# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0)
+/*
+ * A helper for ->readlink().  This should be used *ONLY* for symlinks that
+ * have ->get_link() not calling nd_jump_link().  Using (or not using) it
+ * for any given inode is up to filesystem.
+ */
+static int generic_readlink(struct dentry *dentry, char __user *buffer,
+			    int buflen)
+{
+	DEFINE_DELAYED_CALL(done);
+	struct inode *inode = d_inode(dentry);
+	const char *link = inode->i_link;
+	int res;
+
+	if (!link) {
+		link = inode->i_op->get_link(dentry, inode, &done);
+		if (IS_ERR(link))
+			return PTR_ERR(link);
+	}
+	res = readlink_copy(buffer, buflen, link);
+	do_delayed_call(&done);
+	return res;
+}
+#endif
+
 struct inode_operations sf_lnk_iops =
 {
     .readlink       = generic_readlink,