diff options
Diffstat (limited to 'include/linux/sched/signal.h')
| -rw-r--r-- | include/linux/sched/signal.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h index 0deebe2ab07d..0014d3adaf84 100644 --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -648,6 +648,10 @@ extern void flush_itimer_signals(void); extern bool current_is_single_threaded(void); +/* + * Without tasklist/siglock it is only rcu-safe if g can't exit/exec, + * otherwise next_thread(t) will never reach g after list_del_rcu(g). + */ #define while_each_thread(g, t) \ while ((t = next_thread(t)) != g) |