From: Marc Zyngier <marc.zyngier@arm.com>
To: Christoffer Dall <christoffer.dall@linaro.org>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Cc: kvm@vger.kernel.org
Subject: Re: [PATCH 3/3] KVM: arm/arm64: Fixup userspace irqchip static key optimization
Date: Wed, 31 Jan 2018 09:00:57 +0000 [thread overview]
Message-ID: <0c5d993f-d690-abca-47bc-783756c381da@arm.com> (raw)
In-Reply-To: <20180130124206.12262-4-christoffer.dall@linaro.org>
On 30/01/18 12:42, Christoffer Dall wrote:
> When I introduced a static key to avoid work in the critical path for
> userspace irqchips which is very rarely used, I accidentally messed up
> my logic and used && where I should have used ||, because the point was
> to short-circuit the evaluation in case userspace irqchips weren't even
> in use.
>
> This fixes an issue when running in-kernel irqchip VMs alongside
> userspace irqchip VMs.
>
> Fixes: c44c232ee2d3 ("KVM: arm/arm64: Avoid work when userspace iqchips are not used")
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
M.
--
Jazz is not dead. It just smells funny...
prev parent reply other threads:[~2018-01-31 9:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-30 12:42 [PATCH 0/3] Additional fixes for kvmarm/next Christoffer Dall
2018-01-30 12:42 ` [PATCH 1/3] KVM: arm/arm64: Fix incorrect timer_is_pending logic Christoffer Dall
2018-01-31 8:26 ` Tomasz Nowicki
2018-01-31 8:59 ` Marc Zyngier
2018-01-30 12:42 ` [PATCH 2/3] KVM: arm/arm64: Fix userspace_irqchip_in_use counting Christoffer Dall
2018-01-31 9:00 ` Marc Zyngier
2018-01-30 12:42 ` [PATCH 3/3] KVM: arm/arm64: Fixup userspace irqchip static key optimization Christoffer Dall
2018-01-31 9:00 ` Marc Zyngier [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0c5d993f-d690-abca-47bc-783756c381da@arm.com \
--to=marc.zyngier@arm.com \
--cc=christoffer.dall@linaro.org \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox