From mboxrd@z Thu Jan 1 00:00:00 1970 From: boris.ostrovsky@oracle.com (Boris Ostrovsky) Date: Wed, 21 Oct 2015 08:56:12 -0400 Subject: [PATCH v4 2/3] xen, cpu_hotplug: call device_offline instead of cpu_down In-Reply-To: <1445428430-21567-2-git-send-email-stefano.stabellini@eu.citrix.com> References: <1445428430-21567-2-git-send-email-stefano.stabellini@eu.citrix.com> Message-ID: <56278B6C.7090608@oracle.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 10/21/2015 07:53 AM, Stefano Stabellini wrote: > When offlining a cpu, instead of cpu_down, call device_offline, which > also takes care of updating the cpu.dev.offline field. This keeps the > sysfs file /sys/devices/system/cpu/cpuN/online, up to date. Also move > the call to disable_hotplug_cpu, because it makes more sense to have it > there. > > We don't call device_online at cpu-hotplug time, because that would > immediately take the cpu online, while we want to retain the current > behaviour: the user needs to explicitly enable the cpu after it has > been hotplugged. > > Signed-off-by: Stefano Stabellini > CC: konrad.wilk at oracle.com > CC: boris.ostrovsky at oracle.com > CC: david.vrabel at citrix.com Reviewed-by: Boris Ostrovsky