Plumbing context.Context to DecRef() and Release().

context is passed to DecRef() and Release() which is
needed for SO_LINGER implementation.

PiperOrigin-RevId: 324672584

pkg/sentry/fsimpl/devtmpfs/devtmpfs.go

@@ -92,9 +92,9 @@ func NewAccessor(ctx context.Context, vfsObj *vfs.VirtualFilesystem, creds *auth
 }
 
 // Release must be called when a is no longer in use.
-func (a *Accessor) Release() {
-	a.root.DecRef()
-	a.mntns.DecRef()
+func (a *Accessor) Release(ctx context.Context) {
+	a.root.DecRef(ctx)
+	a.mntns.DecRef(ctx)
 }
 
 // accessorContext implements context.Context by extending an existing

pkg/sentry/fsimpl/devtmpfs/devtmpfs_test.go

@@ -30,7 +30,7 @@ func TestDevtmpfs(t *testing.T) {
 	creds := auth.CredentialsFromContext(ctx)
 
 	vfsObj := &vfs.VirtualFilesystem{}
-	if err := vfsObj.Init(); err != nil {
+	if err := vfsObj.Init(ctx); err != nil {
 		t.Fatalf("VFS init: %v", err)
 	}
 	// Register tmpfs just so that we can have a root filesystem that isn't
@@ -48,9 +48,9 @@ func TestDevtmpfs(t *testing.T) {
 	if err != nil {
 		t.Fatalf("failed to create tmpfs root mount: %v", err)
 	}
-	defer mntns.DecRef()
+	defer mntns.DecRef(ctx)
 	root := mntns.Root()
-	defer root.DecRef()
+	defer root.DecRef(ctx)
 	devpop := vfs.PathOperation{
 		Root:  root,
 		Start: root,
@@ -69,7 +69,7 @@ func TestDevtmpfs(t *testing.T) {
 	if err != nil {
 		t.Fatalf("failed to create devtmpfs.Accessor: %v", err)
 	}
-	defer a.Release()
+	defer a.Release(ctx)
 
 	// Create "userspace-initialized" files using a devtmpfs.Accessor.
 	if err := a.UserspaceInit(ctx); err != nil {