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Re: [Xen-devel] [PATCH] xen: Resume PMU from non-atomic context

From David Vrabel <david.vrabel@citrix.com>
Newsgroups linux.kernel
Subject Re: [Xen-devel] [PATCH] xen: Resume PMU from non-atomic context
Date 2015-12-02 18:20 +0100
Message-ID <qBjet-1JE-75@gated-at.bofh.it> (permalink)
References <qBjer-1JE-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 02/12/15 17:10, Boris Ostrovsky wrote:
> Resuming PMU currently triggers a warning from ___might_sleep() (assuming
> CONFIG_DEBUG_ATOMIC_SLEEP is set) when xen_pmu_init() allocates GFP_KERNEL
> page because we are in state resembling atomic context.
> 
> Move resuming PMU to xen_arch_resume() which is called in regular context.
> For symmetry move suspending PMU to xen_arch_suspend() as well.

Applied to for-linus-4.4, thanks.

David
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[PATCH] xen: Resume PMU from non-atomic context Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2015-12-02 18:20 +0100
  Re: [Xen-devel] [PATCH] xen: Resume PMU from non-atomic context David Vrabel <david.vrabel@citrix.com> - 2015-12-02 18:20 +0100

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