3.8.13.10 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Will Deacon <[email protected]> commit 8455e6ec70f33b0e8c3ffd47067e00481f09f454 upstream. This is a port of cb2d8b342aa0 ("ARM: 7698/1: perf: fix group validation when using enable_on_exec") to arm64, which fixes the event validation checking so that events in the OFF state are still considered when enable_on_exec is true. Signed-off-by: Will Deacon <[email protected]> Signed-off-by: Catalin Marinas <[email protected]> Signed-off-by: Kamal Mostafa <[email protected]> --- arch/arm64/kernel/perf_event.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 34e1bca..bb18b6e 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -325,7 +325,10 @@ validate_event(struct pmu_hw_events *hw_events, if (is_software_event(event)) return 1; - if (event->pmu != leader_pmu || event->state <= PERF_EVENT_STATE_OFF) + if (event->pmu != leader_pmu || event->state < PERF_EVENT_STATE_OFF) + return 1; + + if (event->state == PERF_EVENT_STATE_OFF && !event->attr.enable_on_exec) return 1; return armpmu->get_event_idx(hw_events, &fake_event) >= 0; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
