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

From: Gao feng <[email-masked]>
Date: Tue, 10 Jul 2012 16:53:24 +0800

> 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.