sched: Remove debugging check

Linus reported that the new warning introduced by commit f26f9aff6aaf
"Sched: fix skip_clock_update optimization" triggers. The need_resched
flag can be set by other CPUs asynchronously so this debug check is
bogus - remove it.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <AANLkTinJ8hAG1TpyC+CSYPR47p48+1=E7fiC45hMXT_1@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/sched.c b/kernel/sched.c
index 456c99054160a773fa6736005397a3bc138f6902..297d1a0eedb0e68d8b9327f530ba477c93b1222e 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4128,7 +4128,6 @@ need_resched_nonpreemptible:
                rq->nr_switches++;
                rq->curr = next;
                ++*switch_count;
-               WARN_ON_ONCE(test_tsk_need_resched(next));
 
                context_switch(rq, prev, next); /* unlocks the rq */
                /*