Changeset 7ed8530 in mainline

Timestamp:

2010-05-02T10:49:19Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9150781

Parents:

278b4a30

Message:

Deploy task_hold() and task_release().

File:

• kernel/generic/src/proc/thread.c (modified) (3 diffs)

kernel/generic/src/proc/thread.c

@@ -1 +1 @@
 /*
- * Copyright (c) 2001-2004 Jakub Jermar
+ * Copyright (c) 2010 Jakub Jermar
  * All rights reserved.
  *
@@ -409 +409 @@
 
         /*
-         * t is guaranteed to be the very last thread of its task.
-         * It is safe to destroy the task.
+         * Drop the reference to the containing task.
          */
-        if (atomic_predec(&t->task->refcount) == 0)
-                task_destroy(t->task);
+        task_release(t->task);
         
         slab_free(thread_slab, t);
@@ -436 +434 @@
         spinlock_lock(&task->lock);
 
-        atomic_inc(&task->refcount);
+        /* Hold a reference to the task. */
+        task_hold(task);
 
         /* Must not count kbox thread into lifecount */