linux-kernel - Re: [PATCH 04/14] init: deps: order network interfaces by link order

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Date:	Sat, 17 Oct 2015 12:36:06 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Alexander Holler <holler@...oftware.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Russell King <linux@....linux.org.uk>,
	Grant Likely <grant.likely@...aro.org>
Subject: Re: [PATCH 04/14] init: deps: order network interfaces by link order

On Sat, Oct 17, 2015 at 09:14:34PM +0200, Alexander Holler wrote:
> Am 17.10.2015 um 21:08 schrieb Linus Torvalds:
> >On Sat, Oct 17, 2015 at 12:01 PM, Alexander Holler <holler@...oftware.de> wrote:
> >>
> >>That isn't a flag day thing. It's a config option everyone can turn on and
> >>off whenever he wants.
> >
> >That's a flag-day thing. We've done it (drm comes to mind - several times).
> >
> >I'm disappointed, because I _know_ I pointed you in the direction of
> >stable sorting about a month ago. I really had hoped you'd have taken
> >that into account.
> 
> It's impossible to take it into account because I don't want to miss the
> parallelize functionality. And without that, all the stuff doesn't offer
> enough benefits to be worse the effort but just adds some time necessary to
> do the sorting. It might solve the deferred probe problems, but without much
> benefit.

Again, parallelizing does not solve anything, and causes more problems
_and_ makes things take longer.  Try it, we have done it in the past and
proven this, it's pretty easy to test :)

thanks,

greg k-h
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