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tracing/hwlat: Update old comment about migration 

The ftrace hwlat does support a cpumask.

Link: http://lkml.kernel.org/r/20170213122517.6e211955@redhat.com

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Luiz Capitulino 2017-02-13 12:25:17 -05:00 committed by Steven Rostedt (VMware)
parent 8a58a34ba4
commit 8e0f11429a
1 changed files with 1 additions and 4 deletions
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kernel/trace/trace_hwlat.c
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@ -322,10 +322,7 @@ static void move_to_next_cpu(void)
* need to ensure nothing else might be running (and thus preempting).
* Obviously this should never be used in production environments.
*
* Currently this runs on which ever CPU it was scheduled on, but most
* real-world hardware latency situations occur across several CPUs,
* but we might later generalize this if we find there are any actualy
* systems with alternate SMI delivery or other hardware latencies.
* Executes one loop interaction on each CPU in tracing_cpumask sysfs file.
*/
static int kthread_fn(void *data)
{