Remove Task.Run and return Task.FromResult(0)

Author: Freek van Zee

src/WebApi.OutputCache.Core/Cache/MemoryCacheDefault.cs

@@ -54,7 +54,7 @@ private static void Add(string key, object o, DateTimeOffset expiration, string
             {
                 Cache.Add(key, o, cachePolicy);
             }
-       }
+        }
 
         public virtual Task<IEnumerable<string>> AllKeysAsync
         {
@@ -66,7 +66,8 @@ public virtual Task<IEnumerable<string>> AllKeysAsync
 
         public virtual Task RemoveStartsWithAsync(string key)
         {
-            return Task.Run(() => RemoveStartsWith(key));
+            RemoveStartsWith(key);
+            return Task.FromResult(0);
         }
 
         public virtual Task<T> GetAsync<T>(string key) where T : class
@@ -76,7 +77,8 @@ public virtual Task<T> GetAsync<T>(string key) where T : class
 
         public virtual Task RemoveAsync(string key)
         {
-            return Task.Run(() => Remove(key));
+            Remove(key);
+            return Task.FromResult(0);
         }
 
         public virtual Task<bool> ContainsAsync(string key)
@@ -86,7 +88,8 @@ public virtual Task<bool> ContainsAsync(string key)
 
         public virtual Task AddAsync(string key, object value, DateTimeOffset expiration, string dependsOnKey = null)
         {
-            return Task.Run(() => Add(key, value, expiration, dependsOnKey));
+            Add(key, value, expiration, dependsOnKey);
+            return Task.FromResult(0);
         }
     }
 }