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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-05-25 17:49:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-06-09 11:12:34 +0200 |
| commit | 8d2cacbbb8deadfae78aa16e4e1ee619bdd7019e (patch) | |
| tree | 79fcb319d1c99e348b0a04056e016c85c3666b35 /kernel/perf_event.c | |
| parent | perf: Add non-exec mmap() tracking (diff) | |
| download | linux-8d2cacbbb8deadfae78aa16e4e1ee619bdd7019e.tar.xz linux-8d2cacbbb8deadfae78aa16e4e1ee619bdd7019e.zip | |
perf: Cleanup {start,commit,cancel}_txn details
Clarify some of the transactional group scheduling API details
and change it so that a successfull ->commit_txn also closes
the transaction.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <1274803086.5882.1752.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_event.c')
| -rw-r--r-- | kernel/perf_event.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 227ed9c8ec34..6f60920772b3 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -675,7 +675,6 @@ group_sched_in(struct perf_event *group_event, struct perf_event *event, *partial_group = NULL; const struct pmu *pmu = group_event->pmu; bool txn = false; - int ret; if (group_event->state == PERF_EVENT_STATE_OFF) return 0; @@ -703,15 +702,9 @@ group_sched_in(struct perf_event *group_event, } } - if (!txn) + if (!txn || !pmu->commit_txn(pmu)) return 0; - ret = pmu->commit_txn(pmu); - if (!ret) { - pmu->cancel_txn(pmu); - return 0; - } - group_error: /* * Groups can be scheduled in as one unit only, so undo any |