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| author | Peter Zijlstra <peterz@infradead.org> | 2016-02-24 18:45:43 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-02-25 08:42:33 +0100 |
| commit | 6f932e5be1503ab0783699e843db325d44c2fabb (patch) | |
| tree | 24d8c24eb21317dc46675d104fb02812a8c88a6c | |
| parent | a4f4bb6d0c69d0bb573f1d9e6f1b806f9b038b19 (diff) | |
| download | linux-stable-6f932e5be1503ab0783699e843db325d44c2fabb.tar.gz linux-stable-6f932e5be1503ab0783699e843db325d44c2fabb.tar.bz2 linux-stable-6f932e5be1503ab0783699e843db325d44c2fabb.zip | |
perf: Only update context time when active
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dvyukov@google.com
Cc: eranian@google.com
Cc: oleg@redhat.com
Cc: panand@redhat.com
Cc: sasha.levin@oracle.com
Cc: vince@deater.net
Link: http://lkml.kernel.org/r/20160224174947.860690919@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | kernel/events/core.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index d5299e2e435d..64698fbfad9f 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -2170,12 +2170,12 @@ perf_install_in_context(struct perf_event_context *ctx, raw_spin_unlock_irq(&ctx->lock); return; } - update_context_time(ctx); - /* - * Update cgrp time only if current cgrp matches event->cgrp. - * Must be done before calling add_event_to_ctx(). - */ - update_cgrp_time_from_event(event); + + if (ctx->is_active) { + update_context_time(ctx); + update_cgrp_time_from_event(event); + } + add_event_to_ctx(event, ctx); raw_spin_unlock_irq(&ctx->lock); |