CRED: Wrap task credential accesses in the IPv6 protocol

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: netdev@vger.kernel.org
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 37a4e777e3476e0d59060e2694e374ac7408dcc1..bd3c7b96bbaa627c55f2ec96818fcaf12e50d1de 100644 (file)
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -388,7 +388,7 @@ fl_create(struct net *net, struct in6_flowlabel_req *freq, char __user *optval,
                fl->owner = current->pid;
                break;
        case IPV6_FL_S_USER:
-               fl->owner = current->euid;
+               fl->owner = current_euid();
                break;
        default:
                err = -EINVAL;