[tip:perf/core] perf dso: Separate generic code in dso__data_file_size()

[tip-bot for Jiri Olsa]

Commit-ID:  5523769ee15f27a1bc2009346736b22cb907bff8
Gitweb:     https://git.kernel.org/tip/5523769ee15f27a1bc2009346736b22cb907bff8
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Wed, 8 May 2019 15:19:59 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 28 May 2019 18:37:43 -0300

perf dso: Separate generic code in dso__data_file_size()

Moving file specific code in dso__data_file_size function into separate
file_size function. I'll add bpf specific code in following patches.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stanislav Fomichev <sdf@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/20190508132010.14512-2-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/dso.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index e059976d9d93..cb6199c1390a 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -898,18 +898,12 @@ static ssize_t cached_read(struct dso *dso, struct machine *machine,
 	return r;
 }
 
-int dso__data_file_size(struct dso *dso, struct machine *machine)
+static int file_size(struct dso *dso, struct machine *machine)
 {
 	int ret = 0;
 	struct stat st;
 	char sbuf[STRERR_BUFSIZE];
 
-	if (dso->data.file_size)
-		return 0;
-
-	if (dso->data.status == DSO_DATA_STATUS_ERROR)
-		return -1;
-
 	pthread_mutex_lock(&dso__data_open_lock);
 
 	/*
@@ -938,6 +932,17 @@ out:
 	return ret;
 }
 
+int dso__data_file_size(struct dso *dso, struct machine *machine)
+{
+	if (dso->data.file_size)
+		return 0;
+
+	if (dso->data.status == DSO_DATA_STATUS_ERROR)
+		return -1;
+
+	return file_size(dso, machine);
+}
+
 /**
  * dso__data_size - Return dso data size
  * @dso: dso object