Patch "perf tools mem: Fix -t store option for record command" has been added to the 4.7-stable tree

Patch "perf tools mem: Fix -t store option for record command" has been added to the 4.7-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

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

to the 4.7-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     perf-tools-mem-fix-t-store-option-for-record-command.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 33da54fa86e29b87fe1e83bd0f15b4ef2be53ecb Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@kernel.org>
Date: Thu, 11 Aug 2016 10:50:57 +0200
Subject: perf tools mem: Fix -t store option for record command

From: Jiri Olsa <jolsa@kernel.org>

commit 33da54fa86e29b87fe1e83bd0f15b4ef2be53ecb upstream.

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@redhat.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.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@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 tools/perf/builtin-mem.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -87,6 +87,9 @@ static int __cmd_record(int argc, const
 	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";
 


Patches currently in stable-queue which might be from jolsa@kernel.org are

queue-4.7/perf-tools-mem-fix-t-store-option-for-record-command.patch