CRED: Wrap task credential accesses in the AX25 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>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-hams@vger.kernel.org
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 28c7157..00d9e5e 100644 (file)
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1045,7 +1045,7 @@ static int ax25_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        if (addr->fsa_ax25.sax25_family != AF_AX25)
                return -EINVAL;
 
-       user = ax25_findbyuid(current->euid);
+       user = ax25_findbyuid(current_euid());
        if (user) {
                call = user->call;
                ax25_uid_put(user);

diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c
index 8672cd8..c833ba4 100644 (file)
--- a/net/ax25/ax25_route.c
+++ b/net/ax25/ax25_route.c
@@ -421,7 +421,7 @@ int ax25_rt_autobind(ax25_cb *ax25, ax25_address *addr)
                goto put;
        }
 
-       user = ax25_findbyuid(current->euid);
+       user = ax25_findbyuid(current_euid());
        if (user) {
                ax25->source_addr = user->call;
                ax25_uid_put(user);