netdev - Re: [PATCH] net: cgroup: fix access the unallocated memory in netprio cgroup

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Message-ID: <4FFBED84.1030905@cn.fujitsu.com>
Date:	Tue, 10 Jul 2012 16:53:24 +0800
From:	Gao feng <gaofeng@...fujitsu.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
CC:	nhorman@...driver.com, davem@...emloft.net,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	lizefan@...wei.com, tj@...nel.org,
	Eric Dumazet <edumazet@...gle.com>
Subject: Re: [PATCH] net: cgroup: fix access the unallocated memory in netprio
 cgroup


> Hi Gao
> 
> Is it still needed to call update_netdev_tables() from write_priomap() ?
> 

Yes, I think it's needed,because read_priomap will show all of the net devices,

But we may add the netdev after create a netprio cgroup, so the new added netdev's
priomap will not be allocated. if we don't call update_netdev_tables in write_priomap,
we may access this unallocated memory.

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