KEYS: Make request_key() and co fundamentally asynchronous

[linux-2.6-omap-h63xx.git] / security / keys / process_keys.c

diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index b6f86808475a0aedfb28e9d677fda7db553f006b..2a0eb946fc7ee84f95b7b32cc39149c8e510a2f5 100644 (file)
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -26,7 +26,7 @@ static DEFINE_MUTEX(key_session_mutex);
 /* the root user's tracking struct */
 struct key_user root_key_user = {
        .usage          = ATOMIC_INIT(3),
-       .consq          = LIST_HEAD_INIT(root_key_user.consq),
+       .cons_lock      = __MUTEX_INITIALIZER(root_key_user.cons_lock),
        .lock           = __SPIN_LOCK_UNLOCKED(root_key_user.lock),
        .nkeys          = ATOMIC_INIT(2),
        .nikeys         = ATOMIC_INIT(2),
@@ -679,8 +679,18 @@ key_ref_t lookup_user_key(struct task_struct *context, key_serial_t id,
                break;
        }
 
-       /* check the status */
-       if (perm) {
+       if (!partial) {
+               ret = wait_for_key_construction(key, true);
+               switch (ret) {
+               case -ERESTARTSYS:
+                       goto invalid_key;
+               default:
+                       if (perm)
+                               goto invalid_key;
+               case 0:
+                       break;
+               }
+       } else if (perm) {
                ret = key_validate(key);
                if (ret < 0)
                        goto invalid_key;