From: David Vrabel <david.vrabel@citrix.com>
To: <konrad@kernel.org>
Cc: <xen-devel@lists.xenproject.org>, <linux-kernel@vger.kernel.org>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Steven Rostedt <rostedt@goodmis.org>, <stable@vger.kernel.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: [PATCH] xen/spinlock: Don't enable them unconditionally.
Date: Mon, 7 Apr 2014 18:14:27 +0100 [thread overview]
Message-ID: <5342DCF3.7080408@citrix.com> (raw)
In-Reply-To: <1396637284-6312-1-git-send-email-konrad@kernel.org>
On 04/04/14 19:48, konrad@kernel.org wrote:
> From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
>
> The git commit a945928ea2709bc0e8e8165d33aed855a0110279
> ('xen: Do not enable spinlocks before jump_label_init() has executed')
> was added to deal with the jump machinery. Earlier the code
> that turned on the jump label was only called by Xen specific
> functions. But now that it had been moved to the initcall machinery
> it gets called on Xen, KVM, and baremetal - ouch!. And the detection
> machinery to only call it on Xen wasn't remembered in the heat
> of merge window excitement.
>
> This means that the slowpath is enabled on baremetal while it should
> not be.
Applied to devel/for-linus-3.15.
Thanks.
David
prev parent reply other threads:[~2014-04-07 17:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-04 18:48 [PATCH] xen/spinlock: Don't enable them unconditionally konrad
2014-04-04 20:25 ` Steven Rostedt
2014-04-07 17:14 ` David Vrabel [this message]
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