Re: 2.6.19 -mm merge plans

From: Jeff Garzik
Date: Fri Sep 22 2006 - 12:29:57 EST



NOTE: Your mailer generates bogus Mail-Followup-To headers, and you snipped rmk from the To/CC.

Dave Jones wrote:
Hmm. Some trees do seem to get pulled more often than others.
Linus, is there a upper limit on the number of times you want
to see pull requests? It strikes me as odd, so I'm wondering
if there are some crossed wires here.

Not speaking for Linus, but in general it seems like the more pull requests you send (within reason), the more pulls that occur. Russell and DaveM certainly seem to send frequent, successful pull requests.


Has Andrew commented on why this is proving to be more of a problem?
I've done regular rebases of cpufreq/agpgart (admittedly, they don't
reject hardly ever unless Len has ACPI bits touching cpufreq) without
causing too much headache.

Rebasing _inevitably_ causes more headaches than a simple tree update, for any downstream consumer of your tree(s). It is best to avoid wanton rebasing.

Think about it: if someone is pulling and merging your tree, all of a sudden, without warning, the entire hash history is rewritten. So rather than a Nice and Friendly minor update, the next time they pull your stuff, the downstream user is forced to suffer through either (a) a painful merge, or (b) back out your last tree (ugh!) and redo things from scratch.

Rebasing might make a pretty history, but it is _not_ fun for random consumers of your trees. It basically punishes people for following your tree -- not something you want to do.

Jeff


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