CRED: Separate task security context from task_struct

Separate the task security context from task_struct.  At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.

Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.

With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>

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

1 files changed, 2 insertions, 2 deletions

diff --git a/kernel/capability.c b/kernel/capability.c
index 58b00519624a..a404b980b1bd 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -171,8 +171,8 @@ kernel_cap_t cap_set_effective(const kernel_cap_t pE_new)
 
         spin_lock(&task_capability_lock);
 
-        pE_old = current->cap_effective;
-        current->cap_effective = pE_new;
+        pE_old = current->cred->cap_effective;
+        current->cred->cap_effective = pE_new;
 
         spin_unlock(&task_capability_lock);