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 <namhy...@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

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