[pve-devel] [PATCH installer v2 2/5] fix #5250: install: write btrfs `compress` option to fstab

[Christoph Heiss]

`compress` instead of `compress-force` is used, as the latter can have
unindented (performance) implications, as the name implies. That would
be neither expected by users nor should such a decision made without the
user explicitly opting for it.

Others do the same, e.g. the installer for RedHat/Fedora systems (aka.
Anaconda) opts for `compress` too.

Signed-off-by: Christoph Heiss <c.heiss at proxmox.com>
---
Changes v1 -> v2:
  * no changes
  * moved some mount setup code here from next patch

 Proxmox/Install.pm | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Proxmox/Install.pm b/Proxmox/Install.pm
index fa2702c..5c64c3d 100644
--- a/Proxmox/Install.pm
+++ b/Proxmox/Install.pm
@@ -1065,7 +1065,16 @@ sub extract_data {
 
 	    die "unable to detect FS UUID" if !defined($fsuuid);
 
-	    $fstab .= "UUID=$fsuuid / btrfs defaults 0 1\n";
+	    my $btrfs_opts = Proxmox::Install::Config::get_btrfs_opt();
+
+	    my $mountopts = 'defaults';
+	    if ($btrfs_opts->{compress} eq 'on') {
+		$mountopts .= ',compress';
+	    } elsif ($btrfs_opts->{compress} ne 'off') {
+		$mountopts .= ",compress=$btrfs_opts->{compress}";
+	    }
+
+	    $fstab .= "UUID=$fsuuid / btrfs $mountopts 0 1\n";
 	} else {
 	    my $root_mountopt = $fssetup->{$filesys}->{root_mountopt} || 'defaults';
 	    $fstab .= "$rootdev / $filesys ${root_mountopt} 0 1\n";
-- 
2.45.2