When to resend a patchset?

[Ricardo Ribalda Delgado]

Hello

Usually I was taking the approach of pinging a patch after 21 days of
inactivity.

This has worked ok  in the past, but the last time I have done it I
was told that the merge window was open and that nothing could be done
at that time.

Is there a written guideline to know when to resend/ping a patch?
How can I figure out the current development status of the kernel?
Anything better than the lwn?

I dont want to wast useful maintainer time :)


Thanks!

-- 
Ricardo Ribalda