From e4c7f3e6f6c19f3259820a4c41b69e85c0454379 Mon Sep 17 00:00:00 2001
From: gVisor bot <gvisor-bot@google.com>
Date: Fri, 14 Feb 2020 13:39:51 -0800
Subject: Inline vfs.VirtualFilesystem in Kernel struct

This saves one pointer dereference per VFS access.

Updates #1623

PiperOrigin-RevId: 295216176
---
 pkg/sentry/vfs/device.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'pkg/sentry/vfs/device.go')

diff --git a/pkg/sentry/vfs/device.go b/pkg/sentry/vfs/device.go
index 3af2aa58d..bda5576fa 100644
--- a/pkg/sentry/vfs/device.go
+++ b/pkg/sentry/vfs/device.go
@@ -56,6 +56,7 @@ type Device interface {
 	Open(ctx context.Context, mnt *Mount, d *Dentry, opts OpenOptions) (*FileDescription, error)
 }
 
+// +stateify savable
 type registeredDevice struct {
 	dev  Device
 	opts RegisterDeviceOptions
@@ -63,6 +64,8 @@ type registeredDevice struct {
 
 // RegisterDeviceOptions contains options to
 // VirtualFilesystem.RegisterDevice().
+//
+// +stateify savable
 type RegisterDeviceOptions struct {
 	// GroupName is the name shown for this device registration in
 	// /proc/devices. If GroupName is empty, this registration will not be
-- 
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