------------[ cut here ]------------
!(inode_state_read_once(inode) & I_LINKABLE)
WARNING: fs/inode.c:475 at inc_nlink+0x122/0x150, CPU#1: syz.1.5/5890
Modules linked in:
CPU: 1 UID: 0 PID: 5890 Comm: syz.1.5 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
RIP: 0010:inc_nlink+0x122/0x150
Code: e5 ff e9 3a ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 4c ff ff ff 48 89 df e8 19 cf e5 ff e9 3f ff ff ff e8 4f 92 7b ff 90 <0f> 0b 90 eb 80 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 50 ff ff ff
RSP: 0018:ffffc90005177ac8 EFLAGS: 00010283
RAX: ffffffff824a0e91 RBX: ffff8881b8053240 RCX: 0000000000080000
RDX: ffffc90009583000 RSI: 0000000000002322 RDI: 0000000000002323
RBP: 0000000000000000 R08: ffffffff90119ab7 R09: 1ffffffff2023356
R10: dffffc0000000000 R11: fffffbfff2023357 R12: dffffc0000000000
R13: 1ffff1103700a648 R14: ffff8881b80531f8 R15: ffff8881b80532c8
FS:  00007fc3678626c0(0000) GS:ffff8882a9460000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc35c63f000 CR3: 0000000176776000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 jfs_mkdir+0x877/0xb00
 vfs_mkdir+0x413/0x630
 filename_mkdirat+0x285/0x510
 __se_sys_mkdir+0x34/0x150
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc36699c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc367862028 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007fc366c15fa0 RCX: 00007fc36699c799
RDX: 0000000000000000 RSI: 0000000000000142 RDI: 0000200000000300
RBP: 00007fc366a32c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc366c16038 R14: 00007fc366c15fa0 R15: 00007ffc9ada9408
 </TASK>
