Messages in this thread Patch in this message | | | Date | Tue, 10 Nov 2020 12:45:18 -0000 | From | "tip-bot2 for Peter Zijlstra" <> | Subject | [tip: perf/urgent] perf: Simplify group_sched_in() |
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The following commit has been merged into the perf/urgent branch of tip:
Commit-ID: 251ff2d49347793d348babcff745289b11910e96 Gitweb: https://git.kernel.org/tip/251ff2d49347793d348babcff745289b11910e96 Author: Peter Zijlstra <peterz@infradead.org> AuthorDate: Thu, 29 Oct 2020 16:29:15 +01:00 Committer: Peter Zijlstra <peterz@infradead.org> CommitterDate: Mon, 09 Nov 2020 18:12:35 +01:00
perf: Simplify group_sched_in()
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 --- 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 9a57366..f0e5268 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2580,11 +2580,8 @@ 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): @@ -2613,10 +2610,9 @@ group_error: } event_sched_out(group_event, cpuctx, ctx); +error: pmu->cancel_txn(pmu); - perf_mux_hrtimer_restart(cpuctx); - return -EAGAIN; }
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