linux-kernel - Re: [PATCH 2/2] irq: Cleanup context state transitions in irq

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Date:	Fri, 22 Feb 2013 16:06:55 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Frederic Weisbecker <fweisbec@...il.com>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCH 2/2] irq: Cleanup context state transitions in
 irq_exit()

On Fri, 22 Feb 2013, Frederic Weisbecker wrote:
> On Fri, Feb 22, 2013 at 03:33:51PM +0100, Thomas Gleixner wrote:
> > The minimal extra check at the end of irq_exit() is way better than
> > any other special cased workaround and the softirq stuff is really the
> > only thing which needs to be taken care of. Anything else just works.
> 
> Yeah that's indeed a point in favour of this patch.
> 
> I prefer to let you guys have the final word on this patch. Whether you
> apply it or not, I fear I'll never be entirely happy either way :)
> That's the sad fate of dealing with circular dependencies...

plus the butt ugly softirq semantics or the lack thereof ...

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