1 files changed, 17 insertions, 7 deletions
diff --git a/pkg/sentry/fsimpl/sockfs/sockfs.go b/pkg/sentry/fsimpl/sockfs/sockfs.go
index ee0828a15..29e5371d6 100644
--- a/pkg/sentry/fsimpl/sockfs/sockfs.go
+++ b/pkg/sentry/fsimpl/sockfs/sockfs.go
@@ -28,14 +28,16 @@ import (
 )
 
 // filesystemType implements vfs.FilesystemType.
+//
+// +stateify savable
 type filesystemType struct{}
 
-// GetFilesystem implements FilesystemType.GetFilesystem.
+// GetFilesystem implements vfs.FilesystemType.GetFilesystem.
 func (fsType filesystemType) GetFilesystem(_ context.Context, vfsObj *vfs.VirtualFilesystem, _ *auth.Credentials, _ string, _ vfs.GetFilesystemOptions) (*vfs.Filesystem, *vfs.Dentry, error) {
 	panic("sockfs.filesystemType.GetFilesystem should never be called")
 }
 
-// Name implements FilesystemType.Name.
+// Name implements vfs.FilesystemType.Name.
 //
 // Note that registering sockfs is unnecessary, except for the fact that it
 // will not show up under /proc/filesystems as a result. This is a very minor
@@ -44,6 +46,7 @@ func (filesystemType) Name() string {
 	return "sockfs"
 }
 
+// +stateify savable
 type filesystem struct {
 	kernfs.Filesystem
 
@@ -67,9 +70,9 @@ func NewFilesystem(vfsObj *vfs.VirtualFilesystem) (*vfs.Filesystem, error) {
 }
 
 // Release implements vfs.FilesystemImpl.Release.
-func (fs *filesystem) Release() {
+func (fs *filesystem) Release(ctx context.Context) {
 	fs.Filesystem.VFSFilesystem().VirtualFilesystem().PutAnonBlockDevMinor(fs.devMinor)
-	fs.Filesystem.Release()
+	fs.Filesystem.Release(ctx)
 }
 
 // PrependPath implements vfs.FilesystemImpl.PrependPath.
@@ -80,18 +83,25 @@ func (fs *filesystem) PrependPath(ctx context.Context, vfsroot, vd vfs.VirtualDe
 }
 
 // inode implements kernfs.Inode.
+//
+// +stateify savable
 type inode struct {
-	kernfs.InodeNotDirectory
-	kernfs.InodeNotSymlink
 	kernfs.InodeAttrs
 	kernfs.InodeNoopRefCount
+	kernfs.InodeNotDirectory
+	kernfs.InodeNotSymlink
 }
 
 // Open implements kernfs.Inode.Open.
-func (i *inode) Open(ctx context.Context, rp *vfs.ResolvingPath, vfsd *vfs.Dentry, opts vfs.OpenOptions) (*vfs.FileDescription, error) {
+func (i *inode) Open(ctx context.Context, rp *vfs.ResolvingPath, d *kernfs.Dentry, opts vfs.OpenOptions) (*vfs.FileDescription, error) {
 	return nil, syserror.ENXIO
 }
 
+// StatFS implements kernfs.Inode.StatFS.
+func (i *inode) StatFS(ctx context.Context, fs *vfs.Filesystem) (linux.Statfs, error) {
+	return vfs.GenericStatFS(linux.SOCKFS_MAGIC), nil
+}
+
 // NewDentry constructs and returns a sockfs dentry.
 //
 // Preconditions: mnt.Filesystem() must have been returned by NewFilesystem().