Merge pull request #22194 from grosser/grosser/read-nil

cache nil replies from backend cache so misses are fast too

1 files changed, 6 insertions, 3 deletions

diff --git a/activesupport/lib/active_support/cache/strategy/local_cache.rb b/activesupport/lib/active_support/cache/strategy/local_cache.rb
index fe5bc82c30..e1da2be2d4 100644
--- a/activesupport/lib/active_support/cache/strategy/local_cache.rb
+++ b/activesupport/lib/active_support/cache/strategy/local_cache.rb
@@ -48,6 +48,10 @@ module ActiveSupport
             @data.clear
           end
 
+          def fetch(*args, &block)
+            @data.fetch(*args, &block)
+          end
+
           def read_entry(key, options)
             @data[key]
           end
@@ -99,12 +103,11 @@ module ActiveSupport
         protected
           def read_entry(key, options) # :nodoc:
             if local_cache
-              entry = local_cache.read_entry(key, options)
-              unless entry
+              local_cache.fetch(key) do
                 entry = super
                 local_cache.write_entry(key, entry, options)
+                entry
               end
-              entry
             else
               super
             end