Do not use the 'noacl' mount option when mounting a container disk with
an ext4 file system. The option was removed from the kernel in commit
2d544ec923db

The ext4 detection is based on $do_format in alloc_disk.

Signed-off-by: Filip Schauer <f.scha...@proxmox.com>
---
 src/PVE/LXC.pm | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/PVE/LXC.pm b/src/PVE/LXC.pm
index 7883cfb..6810601 100644
--- a/src/PVE/LXC.pm
+++ b/src/PVE/LXC.pm
@@ -1835,8 +1835,26 @@ sub __mountpoint_mount {
     }
 
     my $acl = $mountpoint->{acl};
-    if (defined($acl)) {
-       push @$optlist, ($acl ? 'acl' : 'noacl');
+
+    if ($acl) {
+       push @$optlist, 'acl';
+    } else {
+       my $noacl = 1;
+
+       if ($storage) {
+           my $scfg = PVE::Storage::storage_config($storage_cfg, $storage);
+
+           # Avoid the outdated 'noacl' mount option on ext4 file systems
+           if ($scfg->{content}->{rootdir} && $scfg->{path}) {
+               $noacl = ($scfg->{type} eq 'btrfs' && $scfg->{quotas});
+           } elsif ($scfg->{type} eq 'zfspool') {
+               $noacl = 1;
+           } elsif ($scfg->{content}->{rootdir}) {
+               $noacl = 0;
+           }
+       }
+
+       push @$optlist, 'noacl' if $noacl;
     }
 
     my $optstring = join(',', @$optlist);
-- 
2.39.2



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