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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-08-01 15:03:42 -0700 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-11-19 05:59:12 -0800 |
| commit | af4b8a83add95ef40716401395b44a1b579965f4 (patch) | |
| tree | 2f3f606b7327f74c1c1beb8a75886318c51c838a /kernel/exit.c | |
| parent | 5e1182deb81ae8c68494017c4a8a71811659c870 (diff) | |
| download | linux-af4b8a83add95ef40716401395b44a1b579965f4.tar.gz linux-af4b8a83add95ef40716401395b44a1b579965f4.tar.bz2 linux-af4b8a83add95ef40716401395b44a1b579965f4.zip | |
pidns: Wait in zap_pid_ns_processes until pid_ns->nr_hashed == 1
Looking at pid_ns->nr_hashed is a bit simpler and it works for
disjoint process trees that an unshare or a join of a pid_namespace
may create.
Acked-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'kernel/exit.c')
| -rw-r--r-- | kernel/exit.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 346616c0092c..d7fe58db4527 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -72,18 +72,6 @@ static void __unhash_process(struct task_struct *p, bool group_dead) list_del_rcu(&p->tasks); list_del_init(&p->sibling); __this_cpu_dec(process_counts); - /* - * If we are the last child process in a pid namespace to be - * reaped, notify the reaper sleeping zap_pid_ns_processes(). - */ - if (IS_ENABLED(CONFIG_PID_NS)) { - struct task_struct *parent = p->real_parent; - - if ((task_active_pid_ns(parent)->child_reaper == parent) && - list_empty(&parent->children) && - (parent->flags & PF_EXITING)) - wake_up_process(parent); - } } list_del_rcu(&p->thread_group); } |