linux-kernel - [tip:perf/urgent] perf trace: Check control+C more often

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Message-ID: <tip-9jdbu937curvb35cfzbyss4g@git.kernel.org>
Date:	Fri, 6 Sep 2013 05:13:35 -0700
From:	tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, eranian@...gle.com, paulus@...ba.org,
	acme@...hat.com, hpa@...or.com, mingo@...nel.org,
	peterz@...radead.org, efault@....de, jolsa@...hat.com,
	fweisbec@...il.com, adrian.hunter@...el.com, dsahern@...il.com,
	tglx@...utronix.de
Subject: [tip:perf/urgent] perf trace: Check control+C more often

Commit-ID:  20c5f10eb5d1767087dd8eccfe4efe325e61cded
Gitweb:     http://git.kernel.org/tip/20c5f10eb5d1767087dd8eccfe4efe325e61cded
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Tue, 3 Sep 2013 11:55:07 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Thu, 5 Sep 2013 16:17:25 -0300

perf trace: Check control+C more often

We were checking for it only after processing all events in the buffer,
delaying processing the termination request for long periods.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Mike Galbraith <efault@....de>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-9jdbu937curvb35cfzbyss4g@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b6f0725..6016112 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -994,6 +994,9 @@ again:
 
 			handler = evsel->handler.func;
 			handler(trace, evsel, &sample);
+
+			if (done)
+				goto out_unmap_evlist;
 		}
 	}
 
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