Automated rollback of changelist 261387276

PiperOrigin-RevId: 266491264

1 files changed, 1 insertions, 11 deletions

diff --git a/pkg/sentry/kernel/sessions.go b/pkg/sentry/kernel/sessions.go
index e5f297478..81fcd8258 100644
--- a/pkg/sentry/kernel/sessions.go
+++ b/pkg/sentry/kernel/sessions.go
@@ -47,11 +47,6 @@ type Session struct {
 	// The id is immutable.
 	id SessionID
 
-	// foreground is the foreground process group.
-	//
-	// This is protected by TaskSet.mu.
-	foreground *ProcessGroup
-
 	// ProcessGroups is a list of process groups in this Session. This is
 	// protected by TaskSet.mu.
 	processGroups processGroupList
@@ -265,14 +260,12 @@ func (pg *ProcessGroup) SendSignal(info *arch.SignalInfo) error {
 func (tg *ThreadGroup) CreateSession() error {
 	tg.pidns.owner.mu.Lock()
 	defer tg.pidns.owner.mu.Unlock()
-	tg.signalHandlers.mu.Lock()
-	defer tg.signalHandlers.mu.Unlock()
 	return tg.createSession()
 }
 
 // createSession creates a new session for a threadgroup.
 //
-// Precondition: callers must hold TaskSet.mu and the signal mutex for writing.
+// Precondition: callers must hold TaskSet.mu for writing.
 func (tg *ThreadGroup) createSession() error {
 	// Get the ID for this thread in the current namespace.
 	id := tg.pidns.tgids[tg]
@@ -353,9 +346,6 @@ func (tg *ThreadGroup) createSession() error {
 		ns.processGroups[ProcessGroupID(local)] = pg
 	}
 
-	// Disconnect from the controlling terminal.
-	tg.tty = nil
-
 	return nil
 }