Merge release-20210906.0-51-ge819029f3 (automated)

2 files changed, 11 insertions, 7 deletions

diff --git a/runsc/boot/fs.go b/runsc/boot/fs.go
index 40cf2a3df..ba5460f1c 100644
--- a/runsc/boot/fs.go
+++ b/runsc/boot/fs.go
@@ -188,8 +188,8 @@ func compileMounts(spec *specs.Spec, conf *config.Config, vfs2Enabled bool) []sp
 	return mounts
 }
 
-// p9MountData creates a slice of p9 mount data.
-func p9MountData(fd int, fa config.FileAccessType, vfs2 bool) []string {
+// goferMountData creates a slice of gofer mount data.
+func goferMountData(fd int, fa config.FileAccessType, attachPath string, vfs2 bool, lisafs bool) []string {
 	opts := []string{
 		"trans=fd",
 		"rfdno=" + strconv.Itoa(fd),
@@ -203,6 +203,10 @@ func p9MountData(fd int, fa config.FileAccessType, vfs2 bool) []string {
 	if fa == config.FileAccessShared {
 		opts = append(opts, "cache=remote_revalidating")
 	}
+	if vfs2 && lisafs {
+		opts = append(opts, "lisafs=true")
+		opts = append(opts, "aname="+attachPath)
+	}
 	return opts
 }
 
@@ -761,7 +765,7 @@ func (c *containerMounter) createRootMount(ctx context.Context, conf *config.Con
 	fd := c.fds.remove()
 	log.Infof("Mounting root over 9P, ioFD: %d", fd)
 	p9FS := mustFindFilesystem("9p")
-	opts := p9MountData(fd, conf.FileAccess, false /* vfs2 */)
+	opts := goferMountData(fd, conf.FileAccess, "/", false /* vfs2 */, false /* lisafs */)
 
 	// We can't check for overlayfs here because sandbox is chroot'ed and gofer
 	// can only send mount options for specs.Mounts (specs.Root is missing
@@ -822,7 +826,7 @@ func (c *containerMounter) getMountNameAndOptions(conf *config.Config, m *specs.
 	case bind:
 		fd := c.fds.remove()
 		fsName = gofervfs2.Name
-		opts = p9MountData(fd, c.getMountAccessType(conf, m), conf.VFS2)
+		opts = goferMountData(fd, c.getMountAccessType(conf, m), m.Destination, conf.VFS2, conf.Lisafs)
 		// If configured, add overlay to all writable mounts.
 		useOverlay = conf.Overlay && !mountFlags(m.Options).ReadOnly
 	case cgroupfs.Name:
@@ -980,7 +984,7 @@ func (c *containerMounter) createRestoreEnvironment(conf *config.Config) (*fs.Re
 
 	// Add root mount.
 	fd := c.fds.remove()
-	opts := p9MountData(fd, conf.FileAccess, false /* vfs2 */)
+	opts := goferMountData(fd, conf.FileAccess, "/", false /* vfs2 */, false /* lisafs */)
 
 	mf := fs.MountSourceFlags{}
 	if c.root.Readonly || conf.Overlay {
diff --git a/runsc/boot/vfs.go b/runsc/boot/vfs.go
index 346796d9c..2f1332566 100644
--- a/runsc/boot/vfs.go
+++ b/runsc/boot/vfs.go
@@ -208,7 +208,7 @@ func (c *containerMounter) mountAll(conf *config.Config, procArgs *kernel.Create
 // createMountNamespaceVFS2 creates the container's root mount and namespace.
 func (c *containerMounter) createMountNamespaceVFS2(ctx context.Context, conf *config.Config, creds *auth.Credentials) (*vfs.MountNamespace, error) {
 	fd := c.fds.remove()
-	data := p9MountData(fd, conf.FileAccess, true /* vfs2 */)
+	data := goferMountData(fd, conf.FileAccess, "/", true /* vfs2 */, conf.Lisafs)
 
 	// We can't check for overlayfs here because sandbox is chroot'ed and gofer
 	// can only send mount options for specs.Mounts (specs.Root is missing
@@ -515,7 +515,7 @@ func (c *containerMounter) getMountNameAndOptionsVFS2(conf *config.Config, m *mo
 			// but unlikely to be correct in this context.
 			return "", nil, false, fmt.Errorf("9P mount requires a connection FD")
 		}
-		data = p9MountData(m.fd, c.getMountAccessType(conf, m.mount), true /* vfs2 */)
+		data = goferMountData(m.fd, c.getMountAccessType(conf, m.mount), m.mount.Destination, true /* vfs2 */, conf.Lisafs)
 		internalData = gofer.InternalFilesystemOptions{
 			UniqueID: m.mount.Destination,
 		}