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cgroup: net_cls: Pass in task to sock_update_classid()

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sock_update_classid() assumes that the update operation always are
applied on the current task. sock_update_classid() needs to know on
which tasks to work on in order to be able to migrate task between
cgroups using the struct cgroup_subsys attach() callback.

Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Joe Perches <joe@perches.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: <netdev@vger.kernel.org>
Cc: <cgroups@vger.kernel.org>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Wagner
2012-10-25 04:16:58 +00:00
committed by David S. Miller
parent 3ace03cc2a
commit fd9a08a7b8
4 changed files with 9 additions and 9 deletions
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6
net/core/sock.c
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@@ -1217,11 +1217,11 @@ static void sk_prot_free(struct proto *prot, struct sock *sk)
#ifdef CONFIG_CGROUPS
#if IS_ENABLED(CONFIG_NET_CLS_CGROUP)
void sock_update_classid(struct sock *sk)
void sock_update_classid(struct sock *sk, struct task_struct *task)
{
u32 classid;
classid = task_cls_classid(current);
classid = task_cls_classid(task);
if (classid != sk->sk_classid)
sk->sk_classid = classid;
}
@@ -1264,7 +1264,7 @@ struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
sock_net_set(sk, get_net(net));
atomic_set(&sk->sk_wmem_alloc, 1);
sock_update_classid(sk);
sock_update_classid(sk, current);
sock_update_netprioidx(sk, current);
}