netdev - Re: [PATCH net] virtio-net: add a missing synchronize

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Message-Id: <20161116.151214.1324945416632519254.davem@davemloft.net>
Date:   Wed, 16 Nov 2016 15:12:14 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     netdev@...r.kernel.org, jasowang@...hat.com, mst@...hat.com
Subject: Re: [PATCH net] virtio-net: add a missing synchronize_net()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Tue, 15 Nov 2016 22:24:12 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> It seems many drivers do not respect napi_hash_del() contract.
> 
> When napi_hash_del() is used before netif_napi_del(), an RCU grace
> period is needed before freeing NAPI object.
> 
> Fixes: 91815639d880 ("virtio-net: rx busy polling support")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied and queued up for -stable, thanks Eric.