linux-kernel - Re: [Xen-devel] [PATCH v2 5/6] virt, sched: add cpu pinning to smp_call_sync_on_phys

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Message-ID: <56F001AB.2000600@citrix.com>
Date:	Mon, 21 Mar 2016 14:14:03 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Jan Beulich <JBeulich@...e.com>, Juergen Gross <JGross@...e.com>
CC:	<Douglas_Warzecha@...l.com>, <pali.rohar@...il.com>,
	<jeremy@...p.org>, <peterz@...radead.org>, <x86@...nel.org>,
	<tglx@...utronix.de>, <virtualization@...ts.linux-foundation.org>,
	<xen-devel@...ts.xenproject.org>, <boris.ostrovsky@...cle.com>,
	<mingo@...hat.com>, <linux@...ck-us.net>, <rusty@...tcorp.com.au>,
	<chrisw@...s-sol.org>, Jean Delvare <jdelvare@...e.com>,
	<linux-kernel@...r.kernel.org>, <akataria@...are.com>,
	<hpa@...or.com>
Subject: Re: [Xen-devel] [PATCH v2 5/6] virt, sched: add cpu pinning to
 smp_call_sync_on_phys_cpu()

On 21/03/16 13:42, Jan Beulich wrote:
>
> Also don't you need to call smp_processor_id() after preempt_disable()?

I suggest using get_cpu()/put_cpu() here.

David