Remove preserve_context_over_{fn, deferred}

Both of these functions ae known to leak logcontexts. Replace the remaining
calls to them and kill them off.

1 files changed, 7 insertions, 15 deletions

diff --git a/synapse/util/distributor.py b/synapse/util/distributor.py

index e68f94ce77..734331caaa 100644
--- a/synapse/util/distributor.py
+++ b/synapse/util/distributor.py
@@ -13,32 +13,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from twisted.internet import defer
+import logging
 
-from synapse.util.logcontext import (
-    PreserveLoggingContext, preserve_context_over_fn
-)
+from twisted.internet import defer
 
 from synapse.util import unwrapFirstError
-
-import logging
-
+from synapse.util.logcontext import PreserveLoggingContext
 
 logger = logging.getLogger(__name__)
 
 
 def user_left_room(distributor, user, room_id):
-    return preserve_context_over_fn(
-        distributor.fire,
-        "user_left_room", user=user, room_id=room_id
-    )
+    with PreserveLoggingContext():
+        distributor.fire("user_left_room", user=user, room_id=room_id)
 
 
 def user_joined_room(distributor, user, room_id):
-    return preserve_context_over_fn(
-        distributor.fire,
-        "user_joined_room", user=user, room_id=room_id
-    )
+    with PreserveLoggingContext():
+        distributor.fire("user_joined_room", user=user, room_id=room_id)
 
 
 class Distributor(object):