CG: add warning for contributors-mentors.

diff --git a/Documentation/contributor/introduction.itexi b/Documentation/contributor/introduction.itexi
index cf7e2b7978f432bc6fdd844231e9eb01157f8be1..61905d060af075b5da19421ff26d17ae80b3d4d1 100644 (file)
--- a/Documentation/contributor/introduction.itexi
+++ b/Documentation/contributor/introduction.itexi
@@ -124,6 +124,12 @@ They might not be able to help you with all problems, but we find
 that new contributors often get stuck with something that could be
 solved/explained with 2 or 3 sentences from a mentor.
 
+@item
+If you have been working on a task much longer than was originally
+estimated, stop and ask your mentor.  There may have been a
+miscommunication, or there may be some time-saving tips that could
+vastly simply your task.
+
 @item
 Send patches to your mentor for initial comments.