Fix remove subvolumes error on brtfs during installation

Current blivet didn't invoke the default subvolume during
brtfs mounting, it lead to the higher level subvolume cannot be removed.

Solution:
Backport upstream patch to fix this issue.
    * 0b672ff4 Make sure we mount the top level subvolume
               when mounting btrfs

Link: 0b672ff452
Reference: bsn#313
Change-Id: If96ad4b7565a332f339734c939e5cf657627d20b
Signed-off-by: Chenxi Mao <chenxi.mao@suse.com>
(cherry picked from commit a47ebf0c372a2d3f575eb1612d026247e5901333)

0001-Make-sure-we-mount-the-top-level-subvolume-when-moun.patch

@@ -0,0 +1,36 @@
+From 0b672ff4527ccbb7b7527f1ab2394fa36738b27f Mon Sep 17 00:00:00 2001
+From: Vojtech Trefny <vtrefny@redhat.com>
+Date: Thu, 27 Jan 2022 17:53:06 +0100
+Subject: [PATCH 1/1] Make sure we mount the top level subvolume when mounting
+ btrfs
+
+If we don't specify the subvolid=5 we end up mounting the default
+subvolume and if it isn't the top volume one, we can't remove
+other subvolumes "higher" in the hierarchy.
+
+This makes the installer crash when reinstalling over a preexisting
+btrfs installation, for example the default openSUSE installation
+where the default subvolume is a post installation snapshot.
+
+Resolves: rhbz#2026205
+---
+ blivet/devices/btrfs.py | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/blivet/devices/btrfs.py b/blivet/devices/btrfs.py
+index 3b9374fc..6629ba95 100644
+--- a/blivet/devices/btrfs.py
++++ b/blivet/devices/btrfs.py
+@@ -123,7 +123,8 @@ class BTRFSDevice(StorageDevice):
+         else:
+             tmpdir = tempfile.mkdtemp(prefix=self._temp_dir_prefix)
+             try:
+-                util.mount(device=fmt.device, mountpoint=tmpdir, fstype=fmt.type)
++                util.mount(device=fmt.device, mountpoint=tmpdir, fstype=fmt.type,
++                           options=fmt.mountopts)
+             except errors.FSError as e:
+                 log.debug("btrfs temp mount failed: %s", e)
+                 raise
+-- 
+2.33.0
+

python-blivet.spec

@@ -3,7 +3,7 @@
 
 Name:           python-blivet
 Version:        3.4.2
-Release:        1
+Release:        2
 Epoch:          1
 Summary:        A python module for system storage configuration
 License:        LGPLv2+
@@ -20,6 +20,7 @@ BuildRequires:  python2-devel python2-setuptools
 Patch0:         0001-force-lvm-plugin.patch
 Patch1:         fix-the-long-hostname.patch
 Patch9000:      fix-allocate-partitions-threw-exception-when-raid.patch
+Patch9001:      0001-Make-sure-we-mount-the-top-level-subvolume-when-moun.patch
 
 
 
@@ -122,6 +123,9 @@ make PYTHON=%{__python2} DESTDIR=%{buildroot} install
 %doc README.md
 
 %changelog
+* Thu Jul 28 2022 Chenxi Mao <chenxi.mao@suse.com> - 3.4.2-2
+- Fix remove subvolumes error on brtfs during installation.
+
 * Wed Dec 15 2021 yangcheng <yangcheng87@huawei.com> - 3.4.2-1
 - Upgrade to 3.4.2