sync_container_namespace: skip virtual filesystems

skip additional virtual filesystems.

the list is taken from a running debian container's /proc/mounts

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>

diff --git a/src/PVE/LXC.pm b/src/PVE/LXC.pm
index b3e35815e19cdf3a98a6e1e0528e333f8f772f2f..9c150d9d56b5285b98701f147486acd344fa288f 100644 (file)
--- a/src/PVE/LXC.pm
+++ b/src/PVE/LXC.pm
@@ -1103,11 +1103,24 @@ my $do_syncfs = sub {
     my $mountdata = do { local $/ = undef; <$socket> };
     close $socket;
 
+    my %nosyncfs = (
+       cgroup => 1,
+       cgroup2 => 1,
+       devtmpfs => 1,
+       devpts => 1,
+       'fuse.lxcfs' => 1,
+       fusectl => 1,
+       mqueue => 1,
+       proc => 1,
+       sysfs => 1,
+       tmpfs => 1,
+    );
+
     # Now sync all mountpoints...
     my $mounts = PVE::ProcFSTools::parse_mounts($mountdata);
     foreach my $mp (@$mounts) {
        my ($what, $dir, $fs) = @$mp;
-       next if $fs eq 'fuse.lxcfs';
+       next if $nosyncfs{$fs};
        eval { PVE::Tools::sync_mountpoint($dir); };
        warn $@ if $@;
     }