gentoo-overlay/app-containers/lxd/files/lxd-5.0.3-btrfs-quota-group-fix.patch

From e7c852e43c0479060e630adb50342d2552a6cdad Mon Sep 17 00:00:00 2001
From: Thomas Parrott <thomas.parrott@canonical.com>
Date: Tue, 7 Feb 2023 10:04:27 +0000
Subject: [PATCH] lxd/storage/drivers/driver/btrfs/utils: Only check for
 minimum number of columns in `btrfs qgroup show` command

Previously we expected 4 columns, but in btrfs-progs >= 6.0 this has changed to 5 columns.

E.g. in Jammy btrfs-progs v5.16.2:

```
sudo btrfs qgroup show /var/lib/lxd/storage-pools/btrfs
qgroupid         rfer         excl
--------         ----         ----
0/5          16.00KiB     16.00KiB
0/256         9.66MiB    400.00KiB
0/257         9.66MiB    392.00KiB
```

And in Lunar btrfs-progs v6.1.3:

```
btrfs qgroup show /var/lib/lxd/storage-pools/btrfs
Qgroupid    Referenced    Exclusive   Path
--------    ----------    ---------   ----
0/5           16.00KiB     16.00KiB   <toplevel>
0/256          9.63MiB    400.00KiB   images/1f81470478d136f0008c856e3a47369e0ac863f0402ce0e31c56dd29e9fdd4d7
0/257          9.64MiB    404.00KiB   containers/c1
```

Fixes #11210

Signed-off-by: Thomas Parrott <thomas.parrott@canonical.com>
---
 lxd/storage/drivers/driver_btrfs_utils.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lxd/storage/drivers/driver_btrfs_utils.go b/lxd/storage/drivers/driver_btrfs_utils.go
index e1468e4b1a59..722a2de20978 100644
--- a/lxd/storage/drivers/driver_btrfs_utils.go
+++ b/lxd/storage/drivers/driver_btrfs_utils.go
@@ -253,7 +253,9 @@ func (d *btrfs) getQGroup(path string) (string, int64, error) {
 		}
 
 		fields := strings.Fields(line)
-		if len(fields) != 4 {
+
+		// The BTRFS tooling changed the number of columns between versions so we only check for minimum.
+		if len(fields) < 3 {
 			continue
 		}