linux-kernel - Re: [GIT PULL] workqueue fixes for v4.5-rc3

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Message-ID: <alpine.DEB.2.11.1602110916400.25254@nanos>
Date:	Thu, 11 Feb 2016 09:18:59 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
cc:	Tejun Heo <tj@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] workqueue fixes for v4.5-rc3

On Wed, 10 Feb 2016, Linus Torvalds wrote:
> On Wed, Feb 10, 2016 at 9:25 AM, Tejun Heo <tj@...nel.org> wrote:
> >
> > * Officially break local execution guarantee of unbound work items and
> >   add a debug feature to flush out usages which depend on it.
> 
> Btw, should we try to do this for timers too? A debug option to make a
> regular "add_timer()" explicitly schedule things on another CPU, to
> figure out the cases that really should use "add_timer_on()"?

That certainly makes sense. So we should use a common debug option to force
the 'schedule remote' machinery for all interesting subsystems instead of
creating an extra option for each.

Thanks,

	tglx