From: Yehuda Sadeh <yehuda@inktank.com>
Date: Tue, 10 Sep 2013 19:18:55 +0000 (-0700)
Subject: rgw: drain pending requests before completing write
X-Git-Tag: v0.67.4~30
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=a855aba9d18936e9a060119e041518790cd4b831;p=ceph.git

rgw: drain pending requests before completing write

Fixes: #6268
When doing aio write of objects (either regular or multipart parts) we
need to drain pending aio requests. Otherwise if gateway goes down then
object might end up corrupted.

Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Signed-off-by: Yehuda Sadeh <yehuda@inktank.com>
(cherry picked from commit 626669afaa333d73707553a85f5c874e99e9cbd8)
---

diff --git a/src/rgw/rgw_rados.cc b/src/rgw/rgw_rados.cc
index 0c2119ecf9db4..d79fbe4c943c2 100644
--- a/src/rgw/rgw_rados.cc
+++ b/src/rgw/rgw_rados.cc
@@ -761,6 +761,11 @@ int RGWPutObjProcessor_Atomic::complete_writing_data()
     }
   }
   complete_parts();
+
+  int r = drain_pending();
+  if (r < 0)
+    return r;
+
   return 0;
 }
 
diff --git a/src/rgw/rgw_rados.h b/src/rgw/rgw_rados.h
index ef98ec1f9fbdb..a55f1c1f94cf4 100644
--- a/src/rgw/rgw_rados.h
+++ b/src/rgw/rgw_rados.h
@@ -238,11 +238,11 @@ class RGWPutObjProcessor_Aio : public RGWPutObjProcessor
   struct put_obj_aio_info pop_pending();
   int wait_pending_front();
   bool pending_has_completed();
-  int drain_pending();
 
 protected:
   uint64_t obj_len;
 
+  int drain_pending();
   int handle_obj_data(rgw_obj& obj, bufferlist& bl, off_t ofs, off_t abs_ofs, void **phandle);
 
 public: