diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2013-07-23 02:31:03 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-07-30 22:29:14 +0200 |
| commit | 9a545de019b536771feefb76f85e5038b65c2190 (patch) | |
| tree | 1d43e73251d778f5cb8c43bce11a346167e70cfa /kernel/events | |
| parent | 4beb31f3657348a8b702dd014d01c520e522012f (diff) | |
| download | linux-9a545de019b536771feefb76f85e5038b65c2190.tar.bz2 | |
perf: Migrate per cpu event accounting
When an event is migrated, move the event per-cpu
accounting accordingly so that branch stack and cgroup
events work correctly on the new CPU.
Original-patch-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1374539466-4799-6-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events')
| -rw-r--r-- | kernel/events/core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 3a4b73aebc42..63bdec9fdd21 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -7145,6 +7145,7 @@ void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu) list_for_each_entry_safe(event, tmp, &src_ctx->event_list, event_entry) { perf_remove_from_context(event); + unaccount_event_cpu(event, src_cpu); put_ctx(src_ctx); list_add(&event->event_entry, &events); } @@ -7157,6 +7158,7 @@ void perf_pmu_migrate_context(struct pmu *pmu, int src_cpu, int dst_cpu) list_del(&event->event_entry); if (event->state >= PERF_EVENT_STATE_OFF) event->state = PERF_EVENT_STATE_INACTIVE; + account_event_cpu(event, dst_cpu); perf_install_in_context(dst_ctx, event, dst_cpu); get_ctx(dst_ctx); } |