[PATCH] perf kmem: Do not ignore mmap events

[PATCH] perf kmem: Do not ignore mmap events

[Namhyung Kim]

The perf kmem command didn't process mmap events for some unknown
reason and it instead gets symbol info from a running kernel.  This is
problematic if perf kmem record was run on a different kernel.

This patch adds the mmap event handlers and reverts the commit
e727ca73f85d ("perf kmem: Resolve kernel symbols again").

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/builtin-kmem.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index bef3376bfaf3..baaaab52f94b 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -256,6 +256,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 static struct perf_tool perf_kmem = {
 	.sample		 = process_sample_event,
 	.comm		 = perf_event__process_comm,
+	.mmap		 = perf_event__process_mmap,
+	.mmap2		 = perf_event__process_mmap2,
 	.ordered_samples = true,
 };
 
@@ -424,9 +426,6 @@ static int __cmd_kmem(void)
 	if (session == NULL)
 		return -ENOMEM;
 
-	if (perf_session__create_kernel_maps(session) < 0)
-		goto out_delete;
-
 	if (!perf_session__has_traces(session, "kmem record"))
 		goto out_delete;
 
-- 
2.0.0

Re: [PATCH] perf kmem: Do not ignore mmap events

[Arnaldo Carvalho de Melo]

Em Fri, Aug 01, 2014 at 02:59:31PM +0900, Namhyung Kim escreveu:
> The perf kmem command didn't process mmap events for some unknown
> reason and it instead gets symbol info from a running kernel.  This is
> problematic if perf kmem record was run on a different kernel.
> 
> This patch adds the mmap event handlers and reverts the commit
> e727ca73f85d ("perf kmem: Resolve kernel symbols again").
> 
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Thanks, applied.

- Arnaldo

[tip:perf/core] perf kmem: Do not ignore mmap events

[tip-bot for Namhyung Kim]

Commit-ID:  64c40908938953d7afa90e9363327875286349e5
Gitweb:     http://git.kernel.org/tip/64c40908938953d7afa90e9363327875286349e5
Author:     Namhyung Kim <namhyung@kernel.org>
AuthorDate: Fri, 1 Aug 2014 14:59:31 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 12 Aug 2014 12:03:03 -0300

perf kmem: Do not ignore mmap events

The perf kmem command didn't process mmap events for some unknown reason
and it instead gets symbol info from a running kernel.  This is
problematic if perf kmem record was run on a different kernel.

This patch adds the mmap event handlers and reverts the commit
e727ca73f85d ("perf kmem: Resolve kernel symbols again").

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1406872771-23933-1-git-send-email-namhyung@kernel.org
[ Fixed up merge conflict with Jiri's ordered_events rename patch set ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kmem.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index b572111..84b8239 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -256,6 +256,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 static struct perf_tool perf_kmem = {
 	.sample		 = process_sample_event,
 	.comm		 = perf_event__process_comm,
+	.mmap		 = perf_event__process_mmap,
+	.mmap2		 = perf_event__process_mmap2,
 	.ordered_events	 = true,
 };
 
@@ -424,9 +426,6 @@ static int __cmd_kmem(void)
 	if (session == NULL)
 		return -ENOMEM;
 
-	if (perf_session__create_kernel_maps(session) < 0)
-		goto out_delete;
-
 	if (!perf_session__has_traces(session, "kmem record"))
 		goto out_delete;