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Re: futex timeout not working? (bisected)

From Heiko Carstens <heiko.carstens@de.ibm.com>
Newsgroups linux.kernel
Subject Re: futex timeout not working? (bisected)
Date 2015-10-16 15:50 +0200
Message-ID <qkdyq-7XP-23@gated-at.bofh.it> (permalink)
References (3 earlier) <qkaAx-3B7-7@gated-at.bofh.it> <qkaTU-3YR-41@gated-at.bofh.it> <qkbPY-5nh-1@gated-at.bofh.it> <qkcj0-6d1-21@gated-at.bofh.it> <qkcCm-6zl-15@gated-at.bofh.it>
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On Fri, Oct 16, 2015 at 02:45:37PM +0200, Thomas Gleixner wrote:
> The only point I found which does not update the sequence count is
> timekeeping_init().
> 
> Does the patch below fix your issue?
> 

Yes, it does. Thanks for looking into this and fixing it!


> 8<--------------------
> 
> diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
> index 3739ac6aa473..44d2cc0436f4 100644
> --- a/kernel/time/timekeeping.c
> +++ b/kernel/time/timekeeping.c
> @@ -1251,7 +1251,7 @@ void __init timekeeping_init(void)
>  	set_normalized_timespec64(&tmp, -boot.tv_sec, -boot.tv_nsec);
>  	tk_set_wall_to_mono(tk, tmp);
> 
> -	timekeeping_update(tk, TK_MIRROR);
> +	timekeeping_update(tk, TK_MIRROR | TK_CLOCK_WAS_SET);
> 
>  	write_seqcount_end(&tk_core.seq);
>  	raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
> 

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Thread

futex timeout not working? (bisected) Heiko Carstens <heiko.carstens@de.ibm.com> - 2015-10-15 12:50 +0200
  Re: futex timeout not working? (bisected) Thomas Gleixner <tglx@linutronix.de> - 2015-10-16 12:30 +0200
    Re: futex timeout not working? (bisected) Thomas Gleixner <tglx@linutronix.de> - 2015-10-16 12:40 +0200
      Re: futex timeout not working? (bisected) Heiko Carstens <heiko.carstens@de.ibm.com> - 2015-10-16 13:00 +0200
        Re: futex timeout not working? (bisected) Heiko Carstens <heiko.carstens@de.ibm.com> - 2015-10-16 14:00 +0200
          Re: futex timeout not working? (bisected) Thomas Gleixner <tglx@linutronix.de> - 2015-10-16 14:30 +0200
            Re: futex timeout not working? (bisected) Thomas Gleixner <tglx@linutronix.de> - 2015-10-16 14:50 +0200
              Re: futex timeout not working? (bisected) Heiko Carstens <heiko.carstens@de.ibm.com> - 2015-10-16 15:50 +0200
    Re: futex timeout not working? (bisected) Heiko Carstens <heiko.carstens@de.ibm.com> - 2015-10-16 12:40 +0200
      Re: futex timeout not working? (bisected) Heiko Carstens <heiko.carstens@de.ibm.com> - 2015-10-16 12:40 +0200
      Re: futex timeout not working? (bisected) Thomas Gleixner <tglx@linutronix.de> - 2015-10-16 12:40 +0200

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