From e4435b014e50a10ad89c201d6f91b6be35a9b02f Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 3 May 2017 10:00:29 +0100 Subject: [PATCH] Update comment --- synapse/storage/state.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/synapse/storage/state.py b/synapse/storage/state.py index 5d6f7dfa28..03981f5d2b 100644 --- a/synapse/storage/state.py +++ b/synapse/storage/state.py @@ -229,7 +229,8 @@ class StateStore(SQLBaseStore): # Prefill the state group cache with this group. # It's fine to use the sequence like this as the state group map - # is immutable. + # is immutable. (If the map wasn't immutable then this prefill could + # race with another update) txn.call_after( self._state_group_cache.update, self._state_group_cache.sequence,