[PATCH 27/44] perf session: Add missing swap ops for namespace events

[Arnaldo Carvalho de Melo]

From: Namhyung Kim <namhy...@kernel.org>

In case it's recorded in a different arch.

Signed-off-by: Namhyung Kim <namhy...@kernel.org>
Cc: Hari Bathini <hbath...@linux.vnet.ibm.com> <hbath...@linux.vnet.ibm.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Krister Johansen <k...@templeofstupid.com>
Fixes: f3b3614a284d ("perf tools: Add PERF_RECORD_NAMESPACES to include 
namespaces related info")
Link: http://lkml.kernel.org/r/20190522053250.207156-3-namhy...@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/session.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 2310a1752983..54cf163347f7 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -647,6 +647,26 @@ static void perf_event__throttle_swap(union perf_event 
*event,
                swap_sample_id_all(event, &event->throttle + 1);
 }
 
+static void perf_event__namespaces_swap(union perf_event *event,
+                                       bool sample_id_all)
+{
+       u64 i;
+
+       event->namespaces.pid           = bswap_32(event->namespaces.pid);
+       event->namespaces.tid           = bswap_32(event->namespaces.tid);
+       event->namespaces.nr_namespaces = 
bswap_64(event->namespaces.nr_namespaces);
+
+       for (i = 0; i < event->namespaces.nr_namespaces; i++) {
+               struct perf_ns_link_info *ns = &event->namespaces.link_info[i];
+
+               ns->dev = bswap_64(ns->dev);
+               ns->ino = bswap_64(ns->ino);
+       }
+
+       if (sample_id_all)
+               swap_sample_id_all(event, &event->namespaces.link_info[i]);
+}
+
 static u8 revbyte(u8 b)
 {
        int rev = (b >> 4) | ((b & 0xf) << 4);
@@ -887,6 +907,7 @@ static perf_event__swap_op perf_event__swap_ops[] = {
        [PERF_RECORD_LOST_SAMPLES]        = perf_event__all64_swap,
        [PERF_RECORD_SWITCH]              = perf_event__switch_swap,
        [PERF_RECORD_SWITCH_CPU_WIDE]     = perf_event__switch_swap,
+       [PERF_RECORD_NAMESPACES]          = perf_event__namespaces_swap,
        [PERF_RECORD_HEADER_ATTR]         = perf_event__hdr_attr_swap,
        [PERF_RECORD_HEADER_EVENT_TYPE]   = perf_event__event_type_swap,
        [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
-- 
2.20.1