syzbot

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workqueue: WQ_MEM_RECLAIM dio/loop0:dio_aio_complete_work is flushing !WQ_MEM_RECLAIM events_long:flush_mdb
WARNING: CPU: 1 PID: 4420 at kernel/workqueue.c:2653 check_flush_dependency+0x2b0/0x350 kernel/workqueue.c:2649
Modules linked in:
CPU: 1 PID: 4420 Comm: kworker/1:12 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: dio/loop0 dio_aio_complete_work
RIP: 0010:check_flush_dependency+0x2b0/0x350 kernel/workqueue.c:2649
Code: 74 08 4c 89 ff e8 e0 f0 6e 00 49 8b 17 48 8b 0c 24 48 81 c1 60 01 00 00 48 c7 c7 60 57 0a 8a 4c 89 e6 4d 89 f0 e8 00 e4 49 08 <0f> 0b eb a1 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c a6 fd ff ff 4c
RSP: 0018:ffffc9000323f8f8 EFLAGS: 00010046
RAX: d0055179524d1a00 RBX: dffffc0000000000 RCX: ffff888075935940
RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
RBP: 0000000000000008 R08: dffffc0000000000 R09: ffffed1017224f2c
R10: ffffed1017224f2c R11: 1ffff11017224f2b R12: ffff888023ca3960
R13: ffff888023ca39c0 R14: ffffffff822db250 R15: ffff888073176418
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f84c71f2000 CR3: 0000000071757000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 start_flush_work+0x2b4/0x820 kernel/workqueue.c:3053
 __flush_work+0x10e/0x1b0 kernel/workqueue.c:3093
 flush_work kernel/workqueue.c:3115 [inline]
 flush_delayed_work+0x121/0x170 kernel/workqueue.c:3239
 hfs_file_fsync+0xed/0x140 fs/hfs/inode.c:684
 generic_write_sync include/linux/fs.h:2990 [inline]
 dio_complete+0x5ae/0x720 fs/direct-io.c:310
 process_one_work+0x863/0x1000 kernel/workqueue.c:2310
 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>