[tip:perf/core] perf tools: Add header defining used namespace struct to event.h

[tip-bot for Arnaldo Carvalho de Melo <tipbot@zytor.com>]

Commit-ID:  514c54039da970f953164c1960d0284f87db969d
Gitweb:     https://git.kernel.org/tip/514c54039da970f953164c1960d0284f87db969d
Author:     Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Wed, 27 Mar 2019 15:22:52 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 1 Apr 2019 14:49:24 -0300

perf tools: Add header defining used namespace struct to event.h

When adding the 'struct namespaces_event' to event.h, referencing the
'struct perf_ns_link_info' type, we forgot to add the header where it is
defined, getting that definition only by sheer luck.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Hari Bathini <hbathini@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Fixes: f3b3614a284d ("perf tools: Add PERF_RECORD_NAMESPACES to include namespaces related info")
Link: https://lkml.kernel.org/n/tip-qkrld0v7boc9uabjbd8csxux@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/event.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 36ae7e92dab1..4e908ec1ef64 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -6,6 +6,7 @@
 #include <stdio.h>
 #include <linux/kernel.h>
 #include <linux/bpf.h>
+#include <linux/perf_event.h>
 
 #include "../perf.h"
 #include "build-id.h"