c8d: mark stargz as requiring reference-counted mounts

neersighted · rumpl · neersighted · commit 21c0a54a6b2d · 2023-06-20T12:59:13.000-06:00
The stargz snapshotter cannot be re-mounted, so the reference-counted
path must be used.

Co-authored-by: Djordje Lukic &lt;djordje.lukic@docker.com&gt;
Signed-off-by: Bjorn Neergaard &lt;bjorn.neergaard@docker.com&gt;
diff --git a/daemon/snapshotter/mount.go b/daemon/snapshotter/mount.go
@@ -14,7 +14,7 @@ import (
 const mountsDir = "rootfs"
 
 // List of known filesystems that can't be re-mounted or have shared layers
-var refCountedFileSystems = []string{"overlayfs", "zfs", "fuse-overlayfs"}
+var refCountedFileSystems = []string{"fuse-overlayfs", "overlayfs", "stargz", "zfs"}
 
 // Mounter handles mounting/unmounting things coming in from a snapshotter
 // with optional reference counting if needed by the filesystem
