UBUNTU: SAUCE: (namespace) fuse: Allow user namespace mounts by default

BugLink: http://bugs.launchpad.net/bugs/1634964

Supporting snaps in lxd containers requires mounting filesystems
in user namespaces using fuse. Enable this by default, but keep
the module parameter to allow users to disable it if desired.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

fs/fuse/inode.c

@@ -48,7 +48,7 @@ MODULE_PARM_DESC(max_user_congthresh,
  "Global limit for the maximum congestion threshold an "
  "unprivileged user can set");
 
-static bool userns_mounts;
+static bool userns_mounts = true;
 module_param(userns_mounts, bool, 0644);
 MODULE_PARM_DESC(userns_mounts, "Allow mounts from unprivileged user namespaces");