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Date:	Tue, 09 Jul 2013 12:46:14 -0700 (PDT)
From:	David Miller <>
Subject: Re: [PATCH v2 0/2] virtio_net: fix race in RX VQ processing

From: "Michael S. Tsirkin" <>
Date: Tue, 9 Jul 2013 08:12:57 +0300

> Jason Wang reported a race in RX VQ processing:
> virtqueue_enable_cb is called outside napi lock,
> violating virtio serialization rules.
> The race has been there from day 1, but it got especially nasty in 3.0
> when commit a5c262c5fd83ece01bd649fb08416c501d4c59d7
> "virtio_ring: support event idx feature"
> added more dependency on vq state.
> Please review, and consider for 3.11 and stable.
> Changes from v1:
> 	- Added Jason's Tested-by tag
> 	- minor coding style fix

Applied and queued up for -stable, thanks.

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