linux-kernel - Re: [PATCH] tick-broadcast: Fix the printing of broadcast masks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <554708E0.1010600@linux.vnet.ibm.com>
Date:	Mon, 04 May 2015 11:21:28 +0530
From:	Preeti U Murthy <preeti@...ux.vnet.ibm.com>
To:	tglx@...utronix.de, mingo@...nel.org
CC:	peterz@...radead.org, linuxppc-dev@...abs.org,
	john.stultz@...aro.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] tick-broadcast: Fix the printing of broadcast masks

Ping.

Any comments on this patch ?

Regards
Preeti U Murthy
On 04/28/2015 02:15 PM, Preeti U Murthy wrote:
> Today the number of bits of the broadcast masks that is output into
> /proc/timer_list is sizeof(unsigned long). This means that on machines
> with larger number of CPUs, the bitmasks of CPUs beyond this range do
> not appear.
> 
> Fix this by using bitmap printing through "%*pb" instead, so as to
> output the broadcast masks for the range of nr_cpu_ids into
> /proc/timer_list.
> 
> Signed-off-by: Preeti U Murthy <preeti@...ux.vnet.ibm.com>
> ---
> 
>  kernel/time/timer_list.c |    8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
> index c82b03c..1afc726 100644
> --- a/kernel/time/timer_list.c
> +++ b/kernel/time/timer_list.c
> @@ -269,11 +269,11 @@ static void timer_list_show_tickdevices_header(struct seq_file *m)
>  {
>  #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
>  	print_tickdevice(m, tick_get_broadcast_device(), -1);
> -	SEQ_printf(m, "tick_broadcast_mask: %08lx\n",
> -		   cpumask_bits(tick_get_broadcast_mask())[0]);
> +	SEQ_printf(m, "tick_broadcast_mask: %*pb\n",
> +		   cpumask_pr_args(tick_get_broadcast_mask()));
>  #ifdef CONFIG_TICK_ONESHOT
> -	SEQ_printf(m, "tick_broadcast_oneshot_mask: %08lx\n",
> -		   cpumask_bits(tick_get_broadcast_oneshot_mask())[0]);
> +	SEQ_printf(m, "tick_broadcast_oneshot_mask: %*pb\n",
> +		   cpumask_pr_args(tick_get_broadcast_oneshot_mask()));
>  #endif
>  	SEQ_printf(m, "\n");
>  #endif
> 
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@...ts.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
> 

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/