rgw: fix post obj does not return the response etag field

When the post obj is successful, no etag field is returned
in the request response, which is inconsistent with aws.

Signed-off-by: limingze <limingze_yewu@cmss.chinamobile.com>

diff --git a/src/rgw/rgw_rest_s3.cc b/src/rgw/rgw_rest_s3.cc
index 6d56766d10eb72d1c8a1dc1388a0a91a0f5d1d61..734a2bc8e85dcf7142c7617a0e2ec443d2c0b0d9 100644 (file)
--- a/src/rgw/rgw_rest_s3.cc
+++ b/src/rgw/rgw_rest_s3.cc
@@ -3368,6 +3368,9 @@ done:
   if (op_ret >= 0) {
     dump_content_length(s, s->formatter->get_len());
   }
+  if (op_ret == STATUS_NO_CONTENT) {
+    dump_etag(s, etag);
+  }
   end_header(s, this);
   if (op_ret != STATUS_CREATED)
     return;