diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2010-07-13 04:10:36 +0400 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-11-19 17:59:15 +0400 |
| commit | 1c4042c29bd2e85aac4110552ca8ade763762e84 (patch) | |
| tree | 90b34aeae51c9afa088eac37be4e8a14a038e6be /kernel | |
| parent | 57e8391d327609cbf12d843259c968b9e5c1838f (diff) | |
| download | linux-1c4042c29bd2e85aac4110552ca8ade763762e84.tar.xz | |
pidns: Consolidate initialzation of special init task state
Instead of setting child_reaper and SIGNAL_UNKILLABLE one way
for the system init process, and another way for pid namespace
init processes test pid->nr == 1 and use the same code for both.
For the global init this results in SIGNAL_UNKILLABLE being set
much earlier in the initialization process.
This is a small cleanup and it paves the way for allowing unshare and
enter of the pid namespace as that path like our global init also will
not set CLONE_NEWPID.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/fork.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index 666dc8b06606..0f2bbce311fc 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1039,8 +1039,6 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk) atomic_set(&sig->live, 1); atomic_set(&sig->sigcnt, 1); init_waitqueue_head(&sig->wait_chldexit); - if (clone_flags & CLONE_NEWPID) - sig->flags |= SIGNAL_UNKILLABLE; sig->curr_target = tsk; init_sigpending(&sig->shared_pending); INIT_LIST_HEAD(&sig->posix_timers); @@ -1441,8 +1439,10 @@ static struct task_struct *copy_process(unsigned long clone_flags, ptrace_init_task(p, (clone_flags & CLONE_PTRACE) || trace); if (thread_group_leader(p)) { - if (is_child_reaper(pid)) + if (is_child_reaper(pid)) { ns_of_pid(pid)->child_reaper = p; + p->signal->flags |= SIGNAL_UNKILLABLE; + } p->signal->leader_pid = pid; p->signal->tty = tty_kref_get(current->signal->tty); |