perf record: Use perf_data_file__write for output file

Changing the file output code to use the newly
added perf_data_file__write interface.

No functional change intended.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 9 insertions, 14 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index c1c1200d2f0a..8eed3d752c80 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -76,24 +76,19 @@ struct perf_record {
         long                    samples;
 };
 
-static int perf_record__write(struct perf_record *rec, void *buf, size_t size)
+static ssize_t perf_record__write(struct perf_record *rec,
+                                  void *buf, size_t size)
 {
-        struct perf_data_file *file = &rec->file;
-
-        while (size) {
-                ssize_t ret = write(file->fd, buf, size);
-
-                if (ret < 0) {
-                        pr_err("failed to write perf data, error: %m\n");
-                        return -1;
-                }
-
-                size -= ret;
-                buf += ret;
+        struct perf_session *session = rec->session;
+        ssize_t ret;
 
-                rec->bytes_written += ret;
+        ret = perf_data_file__write(session->file, buf, size);
+        if (ret < 0) {
+                pr_err("failed to write perf data, error: %m\n");
+                return -1;
         }
 
+        rec->bytes_written += ret;
         return 0;
 }