linux-kernel - Re: [PATCH 1/1] Defer skb allocation for both mergeable buffers and big packets in virtio

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Date:	Fri, 20 Nov 2009 07:19:53 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Shirley Ma <mashirle@...ibm.com>
CC:	"Michael S. Tsirkin" <mst@...hat.com>, Avi Kivity <avi@...hat.com>,
	Rusty Russell <rusty@...tcorp.com.au>, netdev@...r.kernel.org,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] Defer skb allocation for both mergeable buffers and
 big packets in virtio_net

Shirley Ma a écrit :
> This patch is generated against 2.6 git tree. I didn't break up this
> patch since it has one functionality. Please review it.
> 
> Thanks
> Shirley
> 
> Signed-off-by: Shirley Ma <xma@...ibm.com>
> ------
>  
> +void virtio_free_pages(void *buf)
> +{
> +	struct page *page = (struct page *)buf;
> +
> +	while (page) {
> +		__free_pages(page, 0);
> +		page = (struct page *)page->private;
> +	}
> +}
> +

Interesting use after free :)
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