rgw: add some comments

Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/src/rgw/rgw_rest_s3.cc b/src/rgw/rgw_rest_s3.cc
index 35ee64d7eb9..199ccc485eb 100644
--- a/src/rgw/rgw_rest_s3.cc
+++ b/src/rgw/rgw_rest_s3.cc
@@ -1312,6 +1312,9 @@ void RGWCopyObj_ObjStore_S3::send_partial_response(off_t ofs)
     }
     sent_header = true;
   } else {
+    /* Send progress field. Note that this diverge from the original S3
+     * spec. We do this in order to keep connection alive.
+     */
     s->formatter->dump_int("Progress", (uint64_t)ofs);
   }
   rgw_flush_formatter(s, s->formatter);
diff --git a/src/rgw/rgw_rest_swift.cc b/src/rgw/rgw_rest_swift.cc
index f9d8c2eb3a9..80438a6556d 100644
--- a/src/rgw/rgw_rest_swift.cc
+++ b/src/rgw/rgw_rest_swift.cc
@@ -484,6 +484,9 @@ void RGWCopyObj_ObjStore_SWIFT::send_partial_response(off_t ofs)
     dump_errno(s);
     end_header(s);
 
+    /* Send progress information. Note that this diverge from the original swift
+     * spec. We do this in order to keep connection alive.
+     */
     if (ret == 0) {
       s->formatter->open_array_section("progress");
     }