From 67565078bbcdd8f797206d996605df8f6658d00a Mon Sep 17 00:00:00 2001
From: Fabricio Voznika <fvoznika@google.com>
Date: Tue, 9 Jun 2020 18:44:57 -0700
Subject: Implement flock(2) in VFS2

LockFD is the generic implementation that can be embedded in
FileDescriptionImpl implementations. Unique lock ID is
maintained in vfs.FileDescription and is created on demand.

Updates #1480

PiperOrigin-RevId: 315604825
---
 pkg/sentry/fsimpl/eventfd/eventfd.go | 1 +
 1 file changed, 1 insertion(+)

(limited to 'pkg/sentry/fsimpl/eventfd/eventfd.go')

diff --git a/pkg/sentry/fsimpl/eventfd/eventfd.go b/pkg/sentry/fsimpl/eventfd/eventfd.go
index c573d7935..d12d78b84 100644
--- a/pkg/sentry/fsimpl/eventfd/eventfd.go
+++ b/pkg/sentry/fsimpl/eventfd/eventfd.go
@@ -37,6 +37,7 @@ type EventFileDescription struct {
 	vfsfd vfs.FileDescription
 	vfs.FileDescriptionDefaultImpl
 	vfs.DentryMetadataFileDescriptionImpl
+	vfs.NoLockFD
 
 	// queue is used to notify interested parties when the event object
 	// becomes readable or writable.
-- 
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