BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS info (device loop0): checking UUID tree
================================================
WARNING: lock held when returning to user space!
6.6.0-syzkaller-15365-g305230142ae0-dirty #0 Not tainted
------------------------------------------------
syz-executor.0/5537 is leaving the kernel with locks still held!
3 locks held by syz-executor.0/5537:
 #0: ffff88806e8a2608 (sb_internal#2){.+.+}-{0:0}, at: btrfs_ioctl_qgroup_create+0x103/0x200 fs/btrfs/ioctl.c:3802
 #1: ffff888052082390 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transaction+0x401/0xce0 fs/btrfs/transaction.c:294
 #2: ffff8880520823b8 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transaction+0x401/0xce0 fs/btrfs/transaction.c:294