tree 61baa72f24bb12eadd6956fb0abeb7eabda46b88
parent 9843a1e977977986d0a4c1000f2229b032572534
author Oleg Nesterov <oleg@redhat.com> 1308776949 +0200
committer Oleg Nesterov <oleg@redhat.com> 1309199409 +0200

make do_notify_parent() __must_check, update the callers

Change other callers of do_notify_parent() to check the value it
returns, this makes the subsequent task_detached() unnecessary.
Mark do_notify_parent() as __must_check.

Use thread_group_leader() instead of !task_detached() to check
if we need to notify the real parent in wait_task_zombie().

Remove the stale comment in release_task(). "just for sanity" is
no longer true, we have to set EXIT_DEAD to avoid the races with
do_wait().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>