Port GETOWN, SETOWN fcntls to vfs2.

Also make some fixes to vfs1's F_SETOWN. The fcntl test now entirely passes
on vfs2.

Fixes #2920.

PiperOrigin-RevId: 318669529

2 files changed, 8 insertions, 1 deletions

diff --git a/pkg/sentry/kernel/fasync/BUILD b/pkg/sentry/kernel/fasync/BUILD
index b9126e946..2b3955598 100644
--- a/pkg/sentry/kernel/fasync/BUILD
+++ b/pkg/sentry/kernel/fasync/BUILD
@@ -11,6 +11,7 @@ go_library(
         "//pkg/sentry/fs",
         "//pkg/sentry/kernel",
         "//pkg/sentry/kernel/auth",
+        "//pkg/sentry/vfs",
         "//pkg/sync",
         "//pkg/waiter",
     ],
diff --git a/pkg/sentry/kernel/fasync/fasync.go b/pkg/sentry/kernel/fasync/fasync.go
index d32c3e90a..323f1dfa5 100644
--- a/pkg/sentry/kernel/fasync/fasync.go
+++ b/pkg/sentry/kernel/fasync/fasync.go
@@ -20,15 +20,21 @@ import (
 	"gvisor.dev/gvisor/pkg/sentry/fs"
 	"gvisor.dev/gvisor/pkg/sentry/kernel"
 	"gvisor.dev/gvisor/pkg/sentry/kernel/auth"
+	"gvisor.dev/gvisor/pkg/sentry/vfs"
 	"gvisor.dev/gvisor/pkg/sync"
 	"gvisor.dev/gvisor/pkg/waiter"
 )
 
-// New creates a new FileAsync.
+// New creates a new fs.FileAsync.
 func New() fs.FileAsync {
 	return &FileAsync{}
 }
 
+// NewVFS2 creates a new vfs.FileAsync.
+func NewVFS2() vfs.FileAsync {
+	return &FileAsync{}
+}
+
 // FileAsync sends signals when the registered file is ready for IO.
 //
 // +stateify savable