Check in gVisor.

PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463

1 files changed, 30 insertions, 0 deletions

diff --git a/pkg/sentry/fs/file_state.go b/pkg/sentry/fs/file_state.go
new file mode 100644
index 000000000..341cbda0b
--- /dev/null
+++ b/pkg/sentry/fs/file_state.go
@@ -0,0 +1,30 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package fs
+
+// afterLoad is invoked by stateify.
+func (f *File) afterLoad() {
+	f.mu.Init()
+}
+
+// saveFlags is invoked by stateify.
+func (f *File) saveFlags() FileFlags {
+	return f.flags.Load().(FileFlags)
+}
+
+// loadFlags is invoked by stateify.
+func (f *File) loadFlags(flags FileFlags) {
+	f.flags.Store(flags)
+}