diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 27 |
1 files changed, 1 insertions, 26 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index c9759ff2cb43..b0db80acc6ef 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2158,31 +2158,6 @@ static void do_notify_parent_cldstop(struct task_struct *tsk, spin_unlock_irqrestore(&sighand->siglock, flags); } -static inline bool may_ptrace_stop(void) -{ - if (!likely(current->ptrace)) - return false; - /* - * Are we in the middle of do_coredump? - * If so and our tracer is also part of the coredump stopping - * is a deadlock situation, and pointless because our tracer - * is dead so don't allow us to stop. - * If SIGKILL was already sent before the caller unlocked - * ->siglock we must see ->core_state != NULL. Otherwise it - * is safe to enter schedule(). - * - * This is almost outdated, a task with the pending SIGKILL can't - * block in TASK_TRACED. But PTRACE_EVENT_EXIT can be reported - * after SIGKILL was already dequeued. - */ - if (unlikely(current->mm->core_state) && - unlikely(current->mm == current->parent->mm)) - return false; - - return true; -} - - /* * This must be called with current->sighand->siglock held. * @@ -2263,7 +2238,7 @@ static void ptrace_stop(int exit_code, int why, int clear_code, kernel_siginfo_t spin_unlock_irq(¤t->sighand->siglock); read_lock(&tasklist_lock); - if (may_ptrace_stop()) { + if (likely(current->ptrace)) { /* * Notify parents of the stop. * |