Messages in this thread | | | Date | Fri, 14 Jun 2019 14:34:35 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH] perf/x86/intel: Use is_visible callback for default group |
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On Fri, Jun 14, 2019 at 12:20:17PM +0200, Jiri Olsa wrote: > On Fri, May 24, 2019 at 03:21:52PM +0200, Jiri Olsa wrote: > > SNIP > > ping
Well, it looks about right; but last time you asked if someone could test, and I've no idea. I don't think I have any testboxes that are affected by this stuff.
I can just merge it I suppose, we'll see if anybody complains :-)
> > --- > > It's preffered to use group's is_visible callback, so > > we do not need to use condition attribute assignment. > > > > Cc: Stephane Eranian <eranian@google.com> > > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > > Suggested-by: Peter Zijlstra <peterz@infradead.org> > > Signed-off-by: Jiri Olsa <jolsa@kernel.org> > > --- > > arch/x86/events/intel/core.c | 15 ++++++++++++--- > > 1 file changed, 12 insertions(+), 3 deletions(-) > > > > diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c > > index 85afe7e98c7d..cfd61b71136d 100644 > > --- a/arch/x86/events/intel/core.c > > +++ b/arch/x86/events/intel/core.c > > @@ -4386,7 +4386,7 @@ static DEVICE_ATTR(allow_tsx_force_abort, 0644, > > > > static struct attribute *intel_pmu_attrs[] = { > > &dev_attr_freeze_on_smi.attr, > > - NULL, /* &dev_attr_allow_tsx_force_abort.attr.attr */ > > + &dev_attr_allow_tsx_force_abort.attr, > > NULL, > > }; > > > > @@ -4414,6 +4414,15 @@ exra_is_visible(struct kobject *kobj, struct attribute *attr, int i) > > return x86_pmu.version >= 2 ? attr->mode : 0; > > } > > > > +static umode_t > > +default_is_visible(struct kobject *kobj, struct attribute *attr, int i) > > +{ > > + if (attr == &dev_attr_allow_tsx_force_abort.attr) > > + return x86_pmu.flags & PMU_FL_TFA ? attr->mode : 0; > > + > > + return attr->mode; > > +} > > + > > static struct attribute_group group_events_td = { > > .name = "events", > > }; > > @@ -4450,7 +4459,8 @@ static struct attribute_group group_format_extra_skl = { > > }; > > > > static struct attribute_group group_default = { > > - .attrs = intel_pmu_attrs, > > + .attrs = intel_pmu_attrs, > > + .is_visible = default_is_visible, > > }; > > > > static const struct attribute_group *attr_update[] = { > > @@ -4973,7 +4983,6 @@ __init int intel_pmu_init(void) > > x86_pmu.get_event_constraints = tfa_get_event_constraints; > > x86_pmu.enable_all = intel_tfa_pmu_enable_all; > > x86_pmu.commit_scheduling = intel_tfa_commit_scheduling; > > - intel_pmu_attrs[1] = &dev_attr_allow_tsx_force_abort.attr; > > } > > > > pr_cont("Skylake events, "); > > -- > > 2.20.1 > >
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