[syzbot] WARNING in iomap_page_release

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    92510a7f Add linux-next specific files for 20210709
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=14fa5bc4300000
kernel config:  https://syzkaller.appspot.com/x/.config?x=505de2716f052686
dashboard link: https://syzkaller.appspot.com/bug?extid=5ea720fb6b767fbcab6d

Unfortunately, I don't have any reproducer for this issue yet.

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+5ea720fb6b767fbcab6d@xxxxxxxxxxxxxxxxxxxxxxxxx

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WARNING: CPU: 0 PID: 8462 at fs/iomap/buffered-io.c:77 iomap_page_release+0x687/0x790 fs/iomap/buffered-io.c:77
Modules linked in:
CPU: 1 PID: 8462 Comm: syz-executor.1 Tainted: G        W         5.13.0-next-20210709-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:iomap_page_release+0x687/0x790 fs/iomap/buffered-io.c:77
Code: 4f 8d 8a ff 49 8d 6d ff e9 1b fe ff ff e8 41 8d 8a ff 0f 0b e9 71 fe ff ff e8 35 8d 8a ff 0f 0b e9 97 fd ff ff e8 29 8d 8a ff <0f> 0b e9 32 fd ff ff 4c 89 ef e8 3a 9a d0 ff e9 96 f9 ff ff 48 89
RSP: 0018:ffffc9000169f830 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000001000 RCX: 0000000000000000
RDX: ffff8880265f8000 RSI: ffffffff81eb0f77 RDI: 0000000000000003
RBP: ffffea0001380bc0 R08: 0000000000000000 R09: ffff88808995165b
R10: ffffffff81eb0ca7 R11: 000000000000003f R12: ffff888089951658
R13: ffffea0001380bc8 R14: 000000000000000c R15: 0000000000000031
FS:  00000000027d1400(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000544038 CR3: 00000000702a5000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 iomap_invalidatepage fs/iomap/buffered-io.c:489 [inline]
 iomap_invalidatepage+0x46d/0x670 fs/iomap/buffered-io.c:478
 do_invalidatepage mm/truncate.c:167 [inline]
 truncate_cleanup_page+0x393/0x560 mm/truncate.c:186
 truncate_inode_pages_range+0x26c/0x1030 mm/truncate.c:335
 gfs2_evict_inode+0x1e1/0x1ff0 fs/gfs2/super.c:1467
 evict+0x2ed/0x6b0 fs/inode.c:590
 iput_final fs/inode.c:1670 [inline]
 iput.part.0+0x539/0x850 fs/inode.c:1696
 iput+0x58/0x70 fs/inode.c:1686
 gfs2_put_super+0x29a/0x650 fs/gfs2/super.c:668
 generic_shutdown_super+0x14c/0x370 fs/super.c:465
 kill_block_super+0x97/0xf0 fs/super.c:1395
 gfs2_kill_sb+0x104/0x160 fs/gfs2/ops_fstype.c:1682
 deactivate_locked_super+0x94/0x160 fs/super.c:335
 deactivate_super+0xad/0xd0 fs/super.c:366
 cleanup_mnt+0x3a2/0x540 fs/namespace.c:1136
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
 exit_to_user_mode_prepare+0x27e/0x290 kernel/entry/common.c:209
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x467a37
Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffeb202ad98 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000467a37
RDX: 00007ffeb202ae6b RSI: 0000000000000002 RDI: 00007ffeb202ae60
RBP: 00007ffeb202ae60 R08: 00000000ffffffff R09: 00007ffeb202ac30
R10: 00000000027d28e3 R11: 0000000000000246 R12: 00000000004bee70
R13: 00007ffeb202bf30 R14: 00000000027d2810 R15: 00007ffeb202bf70


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