switch ->get_link() to delayed_call, kill ->put_link()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/libfs.c b/fs/libfs.c
index fec7ab0..0149129 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1019,11 +1019,12 @@
 }
 EXPORT_SYMBOL(noop_fsync);
 
-void kfree_put_link(struct inode *unused, void *cookie)
+/* Because kfree isn't assignment-compatible with void(void*) ;-/ */
+void kfree_link(void *p)
 {
-	kfree(cookie);
+	kfree(p);
 }
-EXPORT_SYMBOL(kfree_put_link);
+EXPORT_SYMBOL(kfree_link);
 
 /*
  * nop .set_page_dirty method so that people can use .page_mkwrite on
@@ -1087,7 +1088,7 @@
 EXPORT_SYMBOL(simple_nosetlease);
 
 const char *simple_get_link(struct dentry *dentry, struct inode *inode,
-			    void **cookie)
+			    struct delayed_call *done)
 {
 	return inode->i_link;
 }