CRED: Wrap task credential accesses in the core kernel
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: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-audit@redhat.com
Cc: containers@lists.linux-foundation.org
Cc: linux-mm@kvack.org
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 532858f..f82730a 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -38,7 +38,7 @@
}
/* Reset current->user with a new one */
- new_user = alloc_uid(ns, current->uid);
+ new_user = alloc_uid(ns, current_uid());
if (!new_user) {
free_uid(ns->root_user);
kfree(ns);