Commit 7ba8bd75 authored Aug 04, 2015 by Oleg Nesterov Committed by David S. Miller Aug 06, 2015

net: pktgen: don't abuse current->state in pktgen_thread_worker()



Commit 1fbe4b46 "net: pktgen: kill the Wait for kthread_stop
code in pktgen_thread_worker()" removed (in particular) the final
__set_current_state(TASK_RUNNING) and I didn't notice the previous
set_current_state(TASK_INTERRUPTIBLE). This triggers the warning
in __might_sleep() after return.

Afaics, we can simply remove both set_current_state()'s, and we
could do this a long ago right after ef87979c "pktgen: better
scheduler friendliness" which changed pktgen_thread_worker() to
use wait_event_interruptible_timeout().

Reported-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 57b22906

net/core/pktgen.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -3514,8 +3514,6 @@ static int pktgen_thread_worker(void *arg)

		set_freezable();

		__set_current_state(TASK_RUNNING);

		while (!kthread_should_stop()) {
		pkt_dev = next_to_run(t);

		@@ -3560,7 +3558,6 @@ static int pktgen_thread_worker(void *arg)

		try_to_freeze();
		}
		set_current_state(TASK_INTERRUPTIBLE);

		pr_debug("%s stopping all device\n", t->tsk->comm);
		pktgen_stop(t);