From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de,
jgross@suse.com, torvalds@linux-foundation.org, mingo@kernel.org,
hpa@zytor.com, peterz@infradead.org, anna-maria@linutronix.de,
linux-tip-commits@vger.kernel.org
Subject: Re: [tip:smp/hotplug] cpu/hotplug: Prevent alloc/free of irq descriptors during CPU up/down (again)
Date: Thu, 11 Aug 2016 10:11:20 -0400 [thread overview]
Message-ID: <c2dba193-a435-9530-762d-979962adae88@oracle.com> (raw)
In-Reply-To: <20160811132020.bkdneatkijy7qxal@linutronix.de>
On 08/11/2016 09:20 AM, Sebastian Andrzej Siewior wrote:
> On 2016-08-11 08:53:31 [-0400], Boris Ostrovsky wrote:
>> Since this patch requires
>> http://marc.info/?l=xen-devel&m=147024499722041&w=2 it may be better to
>> take it via Xen tree.
>
> Why are you adding more register_cpu_notifier() users?
Are you asking why this is not using new hotplug infrastructure?
This should indeed be done but not as part of this series. Here we are
solving a specific problem and part of this is allowing PV guests use
the same notifier that HVM guests already do.
-boris
next prev parent reply other threads:[~2016-08-11 14:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-03 17:22 [PATCH v2 0/2] Reinstate irq alloc/dealloc locking patch Boris Ostrovsky
2016-08-03 17:22 ` [PATCH v2 1/2] xen/x86: Move irq allocation from Xen smp_op.cpu_up() Boris Ostrovsky
2016-08-05 6:40 ` Juergen Gross
2016-08-03 17:22 ` [PATCH v2 2/2] hotplug: Prevent alloc/free of irq descriptors during cpu up/down (again) Boris Ostrovsky
2016-08-05 6:41 ` Juergen Gross
2016-08-10 18:10 ` [tip:smp/hotplug] cpu/hotplug: Prevent alloc/free of irq descriptors during CPU " tip-bot for Boris Ostrovsky
2016-08-11 12:53 ` Boris Ostrovsky
2016-08-11 13:20 ` Sebastian Andrzej Siewior
2016-08-11 14:11 ` Boris Ostrovsky [this message]
2016-08-11 14:17 ` Sebastian Andrzej Siewior
2016-08-11 14:30 ` Boris Ostrovsky
2016-08-11 14:44 ` Sebastian Andrzej Siewior
2016-08-11 15:06 ` Boris Ostrovsky
2016-08-11 15:12 ` Sebastian Andrzej Siewior
2016-08-24 17:46 ` [Xen-devel] [PATCH v2 0/2] Reinstate irq alloc/dealloc locking patch David Vrabel
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