| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 180/255] perf: Simplify group_sched_in() | Date | Tue, 17 Nov 2020 14:05:20 +0100 |
| |
From: Peter Zijlstra <peterz@infradead.org>
[ Upstream commit 251ff2d49347793d348babcff745289b11910e96 ]
Collate the error paths. Code duplication only leads to divergence and extra bugs.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20201029162901.972161394@infradead.org Signed-off-by: Sasha Levin <sashal@kernel.org> --- kernel/events/core.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/kernel/events/core.c b/kernel/events/core.c index 98a603098f23e..c245ccd426b71 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2565,11 +2565,8 @@ group_sched_in(struct perf_event *group_event, pmu->start_txn(pmu, PERF_PMU_TXN_ADD); - if (event_sched_in(group_event, cpuctx, ctx)) { - pmu->cancel_txn(pmu); - perf_mux_hrtimer_restart(cpuctx); - return -EAGAIN; - } + if (event_sched_in(group_event, cpuctx, ctx)) + goto error; /* * Schedule in siblings as one group (if any): @@ -2598,10 +2595,9 @@ group_error: } event_sched_out(group_event, cpuctx, ctx); +error: pmu->cancel_txn(pmu); - perf_mux_hrtimer_restart(cpuctx); - return -EAGAIN; } -- 2.27.0
|