linux-kernel - [PATCH] perf auxtrace: Fix queue resize

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Date:   Tue, 14 Aug 2018 11:46:08 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] perf auxtrace: Fix queue resize

When the number of queues grows beyond 32, the array of queues is resized
but not all members were being copied. Fix by also copying 'tid', 'cpu' and
'set'.

Fixes: e502789302a6e ("perf auxtrace: Add helpers for queuing AUX area tracing data")
Cc: stable@...r.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/auxtrace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index ae8c37b219c9..db1511359c5e 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -203,6 +203,9 @@ static int auxtrace_queues__grow(struct auxtrace_queues *queues,
 	for (i = 0; i < queues->nr_queues; i++) {
 		list_splice_tail(&queues->queue_array[i].head,
 				 &queue_array[i].head);
+		queue_array[i].tid = queues->queue_array[i].tid;
+		queue_array[i].cpu = queues->queue_array[i].cpu;
+		queue_array[i].set = queues->queue_array[i].set;
 		queue_array[i].priv = queues->queue_array[i].priv;
 	}
 
-- 
2.17.1