Revert "Add more filter priority levels"

2 files changed, 3 insertions, 13 deletions

diff --git a/src/cpp/common/channel_filter.cc b/src/cpp/common/channel_filter.cc
index 0634b0416f..422e7bb65e 100644
--- a/src/cpp/common/channel_filter.cc
+++ b/src/cpp/common/channel_filter.cc
@@ -78,13 +78,8 @@ bool MaybeAddFilter(grpc_channel_stack_builder* builder, void* arg) {
         grpc_channel_stack_builder_get_channel_arguments(builder);
     if (!filter.include_filter(*args)) return true;
   }
-  if (filter.prepend) {
-    return grpc_channel_stack_builder_prepend_filter(builder, &filter.filter,
-                                                     nullptr, nullptr);
-  } else {
-    return grpc_channel_stack_builder_append_filter(builder, &filter.filter,
-                                                    nullptr, nullptr);
-  }
+  return grpc_channel_stack_builder_prepend_filter(builder, &filter.filter,
+                                                   nullptr, nullptr);
 }
 
 }  // namespace
diff --git a/src/cpp/common/channel_filter.h b/src/cpp/common/channel_filter.h
index 359c72737c..5e569c97e6 100644
--- a/src/cpp/common/channel_filter.h
+++ b/src/cpp/common/channel_filter.h
@@ -36,8 +36,7 @@
 /// \c ChannelData. Then register the filter using something like this:
 /// \code{.cpp}
 ///   RegisterChannelFilter<MyChannelDataSubclass, MyCallDataSubclass>(
-///       "name-of-filter", GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_PRIORITY_LOW,
-///       true, nullptr);
+///       "name-of-filter", GRPC_SERVER_CHANNEL, INT_MAX, nullptr);
 /// \endcode
 
 namespace grpc {
@@ -352,7 +351,6 @@ class ChannelFilter final {
 struct FilterRecord {
   grpc_channel_stack_type stack_type;
   int priority;
-  bool prepend;
   std::function<bool(const grpc_channel_args&)> include_filter;
   grpc_channel_filter filter;
 };
@@ -365,14 +363,12 @@ void ChannelFilterPluginShutdown();
 
 /// Registers a new filter.
 /// Must be called by only one thread at a time.
-/// The \a prepend argument decides whether to prepend or append the filter.
 /// The \a include_filter argument specifies a function that will be called
 /// to determine at run-time whether or not to add the filter. If the
 /// value is nullptr, the filter will be added unconditionally.
 template <typename ChannelDataType, typename CallDataType>
 void RegisterChannelFilter(
     const char* name, grpc_channel_stack_type stack_type, int priority,
-    bool prepend,
     std::function<bool(const grpc_channel_args&)> include_filter) {
   // If we haven't been called before, initialize channel_filters and
   // call grpc_register_plugin().
@@ -387,7 +383,6 @@ void RegisterChannelFilter(
   internal::FilterRecord filter_record = {
       stack_type,
       priority,
-      prepend,
       include_filter,
       {FilterType::StartTransportStreamOpBatch, FilterType::StartTransportOp,
        FilterType::call_data_size, FilterType::InitCallElement,