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From: Juergen Gross <jgross@suse.com>
To: Boris Ostrovsky <boris.ostrovsky@oracle.com>, david.vrabel@citrix.com
Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 1/2] xen/x86: Move irq allocation from Xen smp_op.cpu_up()
Date: Fri, 5 Aug 2016 08:40:10 +0200	[thread overview]
Message-ID: <f3fd49d6-5f0b-5858-971b-cef322691426@suse.com> (raw)
In-Reply-To: <1470244948-17674-2-git-send-email-boris.ostrovsky@oracle.com>

On 03/08/16 19:22, Boris Ostrovsky wrote:
> Commit ce0d3c0a6fb1 ("genirq: Revert sparse irq locking around
> __cpu_up() and move it to x86 for now") reverted irq locking
> introduced by commit a89941816726 ("hotplug: Prevent alloc/free
> of irq descriptors during cpu up/down") because of Xen allocating
> irqs in both of its cpu_up ops.
> 
> We can move those allocations into CPU notifiers so that original
> patch can be reinstated.
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>

Reviewed-by: Juergen Gross <jgross@suse.com>


Juergen

  parent reply	other threads:[~2016-08-05  6:40 UTC|newest]

Thread overview: 21+ 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 ` Boris Ostrovsky
2016-08-03 17:22 ` [PATCH v2 1/2] xen/x86: Move irq allocation from Xen smp_op.cpu_up() Boris Ostrovsky
2016-08-03 17:22   ` Boris Ostrovsky
2016-08-05  6:40   ` Juergen Gross
2016-08-05  6:40   ` Juergen Gross [this message]
2016-08-03 17:22 ` [PATCH v2 2/2] hotplug: Prevent alloc/free of irq descriptors during cpu up/down (again) Boris Ostrovsky
2016-08-03 17:22   ` Boris Ostrovsky
2016-08-05  6:41   ` Juergen Gross
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
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
2016-08-24 17:46   ` David Vrabel

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