Re: [syzbot] [btrfs?] kernel BUG in btrfs_ioctl_add_dev

[syzbot]

syzbot suspects this issue was fixed by commit:

commit ac868bc9d136cde6e3eb5de77019a63d57a540ff
Author: xiaoshoukui <xiaoshoukui@xxxxxxxxx>
Date:   Thu Apr 13 09:55:07 2023 +0000

    btrfs: fix assertion of exclop condition when starting balance

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=12bdc3a3280000
start commit:   04a357b1f6f0 Merge tag 'mips_6.3_1' of git://git.kernel.or..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=f763d89e26d3d4c4
dashboard link: https://syzkaller.appspot.com/bug?extid=afdee14f9fd3d20448e7
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11f043b0c80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15d2ea9cc80000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: btrfs: fix assertion of exclop condition when starting balance

For information about bisection process see: https://goo.gl/tpsmEJ#bisection