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* [PATCH RESEND] perf data: close all files in close_dir
@ 2021-07-16 14:11 Riccardo Mancini
  2021-07-16 19:01 ` Arnaldo Carvalho de Melo
  0 siblings, 1 reply; 2+ messages in thread
From: Riccardo Mancini @ 2021-07-16 14:11 UTC (permalink / raw)
  To: Arnaldo Carvalho de Melo
  Cc: Namhyung Kim, Ian Rogers, Riccardo Mancini, Jiri Olsa,
	Peter Zijlstra, Ingo Molnar, Mark Rutland, Alexander Shishkin,
	Jiri Olsa, Zhen Lei, linux-perf-users, linux-kernel

When using perf report in directory mode, the first file is not closed on
exit, causing a memory leak.
The problem is caused by the iterating variable never reaching 0.

Cc: Jiri Olsa <>
Fixes: 145520631130bd64 ("perf data: Add perf_data__(create_dir|close_dir) functions")
Signed-off-by: Riccardo Mancini <>
Acked-by: Namhyung Kim <>
Hi Arnaldo, 

I think this patch might have gone lost in the mailbox, submerged by
other mails.
I'll take advantage of the resend to add the missing 'Fixes:' tag.

I didn't flag this as v2 since it contains no logical change, let me
know if doing so would've been better.

Changes from first send: 
 - collected ack from Namhyung
 - added Fixes: tag


 tools/perf/util/data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 8fca4779ae6a8e90..70b91ce35178c5f9 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -20,7 +20,7 @@
 static void close_dir(struct perf_data_file *files, int nr)
-	while (--nr >= 1) {
+	while (--nr >= 0) {

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2021-07-16 14:11 [PATCH RESEND] perf data: close all files in close_dir Riccardo Mancini
2021-07-16 19:01 ` Arnaldo Carvalho de Melo

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