Re: Regression with wait_event_timeout in next-20140226
From: Peter Zijlstra
Date: Wed Feb 26 2014 - 17:35:31 EST
On Wed, Feb 26, 2014 at 02:25:34PM -0800, Andrew Morton wrote:
> Is there anything we can do to make all this clearer? Simply using a
> distinctive variable name ("__wait_var__"?) in place of __ret (and
> documenting it) would help a lot.
% s/\<__ret\>/__wait_var__/g should get you mostly there I suppose :-)
Although I'm not entirely sure __wait_var__ is a better name.
> Some __ret's are long and some are int. Maybe that's a glitch,
No that's on purpose.
The longs are needed to hold the timeout values, we truncate to an int
where we only need to return errors.
> maybe
> it's because some __ret's are used for inter-macro communications and
> some are not, which just makes things worse.
The timeout related ones are the worst. The others aren't nearly as bad.
> I started to do a patch, got all confused and gave up. We've made
> quite a tangly mess in there, alas.
Hehe, yes, made a lot of duplicated code go away though. Maybe we
compressed too much, dunno.
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