linux-kernel - [tip:perf/urgent] perf tools mem: Fix -t store option for record command

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Date:	Tue, 16 Aug 2016 11:13:42 -0700
From:	tip-bot for Jiri Olsa <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	dsahern@...il.com, namhyung@...nel.org, a.p.zijlstra@...llo.nl,
	tglx@...utronix.de, mingo@...nel.org, jolsa@...nel.org,
	jolsa@...hat.com, acme@...hat.com, linux-kernel@...r.kernel.org,
	mpetlan@...hat.com, hpa@...or.com
Subject: [tip:perf/urgent] perf tools mem: Fix -t store option for record
 command

Commit-ID:  33da54fa86e29b87fe1e83bd0f15b4ef2be53ecb
Gitweb:     http://git.kernel.org/tip/33da54fa86e29b87fe1e83bd0f15b4ef2be53ecb
Author:     Jiri Olsa <jolsa@...nel.org>
AuthorDate: Thu, 11 Aug 2016 10:50:57 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 12 Aug 2016 14:39:48 -0300

perf tools mem: Fix -t store option for record command

Michael reported 'perf mem -t store record' being broken.  The reason is
latest rework of this area:

  commit acbe613e0c03 ("perf tools: Add monitored events array")

We don't mark perf_mem_events store record when -t store option is
specified.

Committer notes:

Before:

  # perf mem -t store record usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.020 MB perf.data (7 samples) ]
  # perf evlist
  cycles:ppp
  #

After:

  # perf mem -t store record usleep 1
  [ perf record: Woken up 1 times to write data ]
  [ perf record: Captured and wrote 0.020 MB perf.data (7 samples) ]
  # perf evlist
  cpu/mem-stores/P
  #

Reported-by: Michael Petlan <mpetlan@...hat.com>
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Fixes: acbe613e0c03 ("perf tools: Add monitored events array")
Link: http://lkml.kernel.org/r/1470905457-18311-1-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-mem.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index d608a2c..d1ce29b 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -88,6 +88,9 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
 	if (mem->operation & MEM_OPERATION_LOAD)
 		perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
 
+	if (mem->operation & MEM_OPERATION_STORE)
+		perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
+
 	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
 		rec_argv[i++] = "-W";