| Message ID | 20191016153606.2326-4-christian.brauner@ubuntu.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] pidfd: verify task is alive when printing fdinfo | expand |
diff --git a/kernel/exit.c b/kernel/exit.c index a46a50d67002..2bb0cbe94bda 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -1457,7 +1457,7 @@ static long do_wait(struct wait_opts *wo) */ wo->notask_error = -ECHILD; if ((wo->wo_type < PIDTYPE_MAX) && - (!wo->wo_pid || hlist_empty(&wo->wo_pid->tasks[wo->wo_type]))) + (!wo->wo_pid || !task_alive(wo->wo_pid, wo->wo_type))) goto notask; set_current_state(TASK_INTERRUPTIBLE);
Replace hlist_empty() with the new task_alive() helper which is more idiomatic, easier to grep for, and unifies how callers perform this check. Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> --- /* v1 */ patch not present /* v2 */ patch introduced --- kernel/exit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)