------------[ cut here ]------------
atomic_read(&ifs->write_bytes_pending) != 0
WARNING: fs/iomap/buffered-io.c:1828 at iomap_writeback_init fs/iomap/buffered-io.c:1828 [inline], CPU#1: kworker/u10:5/4737
WARNING: fs/iomap/buffered-io.c:1828 at iomap_writeback_folio+0x20f6/0x2790 fs/iomap/buffered-io.c:1974, CPU#1: kworker/u10:5/4737
Modules linked in:
CPU: 1 UID: 0 PID: 4737 Comm: kworker/u10:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:iomap_writeback_init fs/iomap/buffered-io.c:1828 [inline]
RIP: 0010:iomap_writeback_folio+0x20f6/0x2790 fs/iomap/buffered-io.c:1974
Code: e8 4f 96 5b ff 48 8d 3d 28 c1 ce 0d 67 48 0f b9 3a e9 da e3 ff ff e8 39 96 5b ff 90 0f 0b 90 e9 4b e5 ff ff e8 2b 96 5b ff 90 <0f> 0b 90 e9 cc e8 ff ff e8 1d 96 5b ff bf e4 ff ff ff 44 89 ee e8
RSP: 0018:ffffc90003e3ef80 EFLAGS: 00010293
RAX: ffffffff826a9a75 RBX: 00000000ffff8881 RCX: ffff88816b235940
RDX: 0000000000000000 RSI: 00000000ffff8881 RDI: 0000000000000000
RBP: 1ffff11036dd96d9 R08: ffff8881babac587 R09: 1ffff110375758b0
R10: dffffc0000000000 R11: ffffed10375758b1 R12: 1ffff110375758b0
R13: 000000000000000a R14: ffff8881babac584 R15: ffffea0006bc8ac0
FS:  0000000000000000(0000) GS:ffff8882a9227000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555779c0a28 CR3: 0000000113804000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 iomap_writepages+0x167/0x2e0 fs/iomap/buffered-io.c:2051
 minix_writepages+0xef/0x160 fs/minix/inode.c:488
 do_writepages+0x338/0x560 mm/page-writeback.c:2571
 __writeback_single_inode+0x12e/0xf90 fs/fs-writeback.c:1787
 writeback_sb_inodes+0x9de/0x1b00 fs/fs-writeback.c:2079
 wb_writeback+0x41c/0xad0 fs/fs-writeback.c:2264
 wb_do_writeback fs/fs-writeback.c:2432 [inline]
 wb_workfn+0x431/0x10f0 fs/fs-writeback.c:2477
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>