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sched/core: Add missing update_rq_clock() call in set_user_nice()
Address this rq-clock update bug: WARNING: CPU: 30 PID: 195 at ../kernel/sched/sched.h:797 set_next_entity() rq->clock_update_flags < RQCF_ACT_SKIP Call Trace: dump_stack() __warn() warn_slowpath_fmt() set_next_entity() ? _raw_spin_lock() set_curr_task_fair() set_user_nice.part.85() set_user_nice() create_worker() worker_thread() kthread() ret_from_fork() Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -3752,6 +3752,8 @@ void set_user_nice(struct task_struct *p, long nice)
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* the task might be in the middle of scheduling on another CPU.
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*/
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rq = task_rq_lock(p, &rf);
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update_rq_clock(rq);
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/*
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* The RT priorities are set via sched_setscheduler(), but we still
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* allow the 'normal' nice value to be set - but as expected
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