linux-kernel - Re: [GIT PULL] KVM fixes for 3.5-rc6

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Message-ID: <500156B3.6040205@web.de>
Date:	Sat, 14 Jul 2012 13:23:31 +0200
From:	Jan Kiszka <jan.kiszka@....de>
To:	Thomas Gleixner <tglx@...utronix.de>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Avi Kivity <avi@...hat.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Marcelo Tosatti <mtosatti@...hat.com>,
	KVM list <kvm@...r.kernel.org>
Subject: Re: [GIT PULL] KVM fixes for 3.5-rc6

On 2012-07-14 13:16, Thomas Gleixner wrote:
> On Sat, 14 Jul 2012, Jan Kiszka wrote:
>> On 2012-07-14 04:25, Thomas Gleixner wrote:
>> This patch here is a workaround to unbreak devices assignment in 3.5
>> after the IRQ layer changes without regressing noticeable /wrt overhead.
> 
> Yeah, workaround and regression are the proper marketing buzzwords to
> excuse mindless hackery.
> 
> It took me a minute to figure out that there is no reason at all to
> use a threaded interrupt handler for MSI and MSIX.

Thomas, we also explained to you in the cited thread that your simple
approach for this doesn't work as is. We will have a proper solution
soon, but it takes a bit more than a minute - at least us.

Jan


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