namespace: when setting up an inaccessible mount point, unmounting everything below

This has the benefit of not triggering any autofs mount points
unnecessarily.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/core/namespace.c b/src/core/namespace.c
index b6deab7081..fcbfd87d47 100644
--- a/src/core/namespace.c
+++ b/src/core/namespace.c
@@ -284,6 +284,12 @@ static int apply_mount(
                 return mount_dev(m);
 
         case INACCESSIBLE:
+
+                /* First, get rid of everything that is below if there
+                 * is anything... Then, overmount it with an
+                 * inaccessible directory. */
+                umount_recursive(m->path, 0);
+
                 what = "/run/systemd/inaccessible";
                 break;