syzbot

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WARNING: CPU: 0 PID: 20 at fs/btrfs/inode.c:3450 btrfs_add_delayed_iput+0x2e6/0x360 fs/btrfs/inode.c:3450
Modules linked in:
CPU: 0 UID: 0 PID: 20 Comm: rcuc/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:btrfs_add_delayed_iput+0x2e6/0x360 fs/btrfs/inode.c:3450
Code: 90 81 5c fe 48 8b 3b 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 0a e0 cb fd e8 d5 c9 fa fd e9 f5 fd ff ff e8 cb c9 fa fd 90 <0f> 0b 90 e9 4f fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 81
RSP: 0018:ffffc900001976a0 EFLAGS: 00010246
RAX: ffffffff83c3f435 RBX: ffff88804e230000 RCX: ffff88801b6bda00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000100
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000100
R10: dffffc0000000000 R11: ffffed1009c46471 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88803d3852c0 R15: 0000000000000200
FS:  0000000000000000(0000) GS:ffff888126dfc000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcfde987dac CR3: 0000000038532000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 btrfs_put_ordered_extent+0x19f/0x470 fs/btrfs/ordered-data.c:635
 blk_update_request+0x57e/0xe60 block/blk-mq.c:998
 blk_mq_end_request+0x3e/0x70 block/blk-mq.c:1160
 blk_complete_reqs block/blk-mq.c:1235 [inline]
 blk_done_softirq+0x10a/0x160 block/blk-mq.c:1240
 handle_softirqs+0x22f/0x710 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 __local_bh_enable_ip+0x1a0/0x2e0 kernel/softirq.c:302
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 rcu_do_batch kernel/rcu/tree.c:2624 [inline]
 rcu_core kernel/rcu/tree.c:2861 [inline]
 rcu_cpu_kthread+0xc3d/0x1b50 kernel/rcu/tree.c:2949
 smpboot_thread_fn+0x542/0xa60 kernel/smpboot.c:160
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>