os/bluestore: fsync on _write_bdev_label

Signed-off-by: Sage Weil <sage@redhat.com>
(cherry picked from commit 7aca8af6625156eeaa936629f83ede33d3bbe866)

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index f3d8d58679d76e5ac47b260deb23238c6eb02fd6..839c54f1d96a2a67f2fadad2c33fd9e04f3501d6 100644 (file)
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -4046,6 +4046,11 @@ int BlueStore::_write_bdev_label(CephContext *cct,
     derr << __func__ << " failed to write to " << path
         << ": " << cpp_strerror(r) << dendl;
   }
+  r = ::fsync(fd);
+  if (r < 0) {
+    derr << __func__ << " failed to fsync " << path
+        << ": " << cpp_strerror(r) << dendl;
+  }
   VOID_TEMP_FAILURE_RETRY(::close(fd));
   return r;
 }