diff options
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 6f137beea865..203fe93429de 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -74,6 +74,9 @@ int nr_processes(void) void __put_task_struct(struct task_struct *tsk) { + WARN_ON(!(tsk->state & (TASK_DEAD | TASK_ZOMBIE))); + WARN_ON(atomic_read(&tsk->usage)); + if (tsk != current) { free_thread_info(tsk->thread_info); kmem_cache_free(task_struct_cachep,tsk); @@ -217,7 +220,9 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) *tsk = *orig; tsk->thread_info = ti; ti->task = tsk; - atomic_set(&tsk->usage,1); + + /* One for us, one for whoever does the "release_task()" (usually parent) */ + atomic_set(&tsk->usage,2); return tsk; } |