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Date:   Fri, 22 Mar 2019 15:04:34 -0700
From:   tip-bot for Jiri Olsa <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     peterz@...radead.org, adrian.hunter@...el.com,
        linux-kernel@...r.kernel.org, namhyung@...nel.org,
        mingo@...nel.org, alexey.budankov@...ux.intel.com,
        alexander.shishkin@...ux.intel.com, jolsa@...nel.org,
        acme@...hat.com, hpa@...or.com, eranian@...gle.com,
        tglx@...utronix.de, ak@...ux.intel.com
Subject: [tip:perf/urgent] perf data: Add perf_data__update_dir() function

Commit-ID:  e8be135751f26aa5de63e517d375ecf69e9b20c3
Gitweb:     https://git.kernel.org/tip/e8be135751f26aa5de63e517d375ecf69e9b20c3
Author:     Jiri Olsa <jolsa@...nel.org>
AuthorDate: Fri, 8 Mar 2019 14:47:37 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 11 Mar 2019 11:56:03 -0300

perf data: Add perf_data__update_dir() function

Add perf_data__update_dir() to update the size for every file within the
perf.data directory.

Signed-off-by: Jiri Olsa <jolsa@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Alexey Budankov <alexey.budankov@...ux.intel.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/20190308134745.5057-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/data.c | 20 ++++++++++++++++++++
 tools/perf/util/data.h |  1 +
 2 files changed, 21 insertions(+)

diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 18fa8d4614eb..5d0f26aef77f 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -124,6 +124,26 @@ out_err:
 	return ret;
 }
 
+int perf_data__update_dir(struct perf_data *data)
+{
+	int i;
+
+	if (WARN_ON(!data->is_dir))
+		return -EINVAL;
+
+	for (i = 0; i < data->dir.nr; i++) {
+		struct perf_data_file *file = &data->dir.files[i];
+		struct stat st;
+
+		if (fstat(file->fd, &st))
+			return -1;
+
+		file->size = st.st_size;
+	}
+
+	return 0;
+}
+
 static bool check_pipe(struct perf_data *data)
 {
 	struct stat st;
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
index 06aefeda311f..0deeb1af9f54 100644
--- a/tools/perf/util/data.h
+++ b/tools/perf/util/data.h
@@ -79,4 +79,5 @@ int perf_data__switch(struct perf_data *data,
 int perf_data__create_dir(struct perf_data *data, int nr);
 int perf_data__open_dir(struct perf_data *data);
 void perf_data__close_dir(struct perf_data *data);
+int perf_data__update_dir(struct perf_data *data);
 #endif /* __PERF_DATA_H */

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