linux-kernel - Re: [PATCH v3 3/4] perf,x86: add Intel RAPL PMU support

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]

Date:	Sat, 26 Oct 2013 19:00:51 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	Jiri Olsa <jolsa@...hat.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	"mingo@...e.hu" <mingo@...e.hu>,
	"ak@...ux.intel.com" <ak@...ux.intel.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Yan, Zheng" <zheng.z.yan@...el.com>,
	Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH v3 3/4] perf,x86: add Intel RAPL PMU support

On Fri, Oct 25, 2013 at 1:14 PM, Jiri Olsa <jolsa@...hat.com> wrote:
> On Wed, Oct 23, 2013 at 02:58:04PM +0200, Stephane Eranian wrote:
>
> SNIP
>
>> +
>> +static void rapl_init_cpu(int cpu)
>> +{
>> +     int i, phys_id = topology_physical_package_id(cpu);
>> +
>> +     spin_lock(&rapl_hotplug_lock);
>> +
>> +     /* check if phys_is is already covered */
>> +     for_each_cpu(i, &rapl_cpu_mask) {
>> +             if (phys_id == topology_physical_package_id(i))
>> +                     return;
>
> missing 'spin_unlock(&rapl_hotplug_lock)' above
>
Good catch. I fixed that now.

>> +     }
>> +     /* was not found, so add it */
>> +     cpumask_set_cpu(cpu, &rapl_cpu_mask);
>> +
>> +     spin_unlock(&rapl_hotplug_lock);
>> +}
>> +
--
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/