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@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stanislav Fomichev <sdf@google.com>
Link: http://lkml.kernel.org/r/20190508132010.14512-2-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files 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