Change thread_group_cputime() to use for_each_thread() instead of buggy while_each_thread(). This also makes the pid_alive() check unnecessary.
Signed-off-by: Oleg Nesterov <[email protected]> --- kernel/sched/cputime.c | 10 ++-------- 1 files changed, 2 insertions(+), 8 deletions(-) diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index 72fdf06..3e52836 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -294,18 +294,12 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times) times->sum_exec_runtime = sig->sum_sched_runtime; rcu_read_lock(); - /* make sure we can trust tsk->thread_group list */ - if (!likely(pid_alive(tsk))) - goto out; - - t = tsk; - do { + for_each_thread(tsk, t) { task_cputime(t, &utime, &stime); times->utime += utime; times->stime += stime; times->sum_exec_runtime += task_sched_runtime(t); - } while_each_thread(tsk, t); -out: + } rcu_read_unlock(); } -- 1.5.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
