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-rw-r--r--kernel/signal.c14
1 files changed, 1 insertions, 13 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 50c992643771..f2b96b08fb44 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -397,20 +397,8 @@ void __exit_signal(struct task_struct *tsk)
397 flush_sigqueue(&tsk->pending); 397 flush_sigqueue(&tsk->pending);
398 if (sig) { 398 if (sig) {
399 /* 399 /*
400 * We are cleaning up the signal_struct here. We delayed 400 * We are cleaning up the signal_struct here.
401 * calling exit_itimers until after flush_sigqueue, just in
402 * case our thread-local pending queue contained a queued
403 * timer signal that would have been cleared in
404 * exit_itimers. When that called sigqueue_free, it would
405 * attempt to re-take the tasklist_lock and deadlock. This
406 * can never happen if we ensure that all queues the
407 * timer's signal might be queued on have been flushed
408 * first. The shared_pending queue, and our own pending
409 * queue are the only queues the timer could be on, since
410 * there are no other threads left in the group and timer
411 * signals are constrained to threads inside the group.
412 */ 401 */
413 exit_itimers(sig);
414 exit_thread_group_keys(sig); 402 exit_thread_group_keys(sig);
415 kmem_cache_free(signal_cachep, sig); 403 kmem_cache_free(signal_cachep, sig);
416 } 404 }