remove unneeded sig->curr_target recalculation
PATCH 1/1 remove unneeded sig->curr_target recalculation
This patch removes unneeded sig->curr_target recalculation under 'if (atomic_dec_and_test(&sig->count))' in __exit_signal().
When sig->count == 0 the signal can't be sent to this task and next_thread(tsk) == tsk anyway.
Signed-off-by Oleg Nesterov <[email protected]>
kernel/signal.c renamed from kernel/signal.c~ +0 -2
@@ -355,8 +355,6 @@ void __exit_signal(struct task_struct *tposix_cpu_timers_exit (tsk);if (atomic_dec_and_test (&sig->count)) {posix_cpu_timers_exit_group (tsk); -if (tsk == sig->curr_target) - sig->curr_target =next_thread (tsk); tsk->signal =NULL ;spin_unlock (&sighand->siglock);flush_sigqueue (&sig->shared_pending);