EXT4-fs: Ignoring removed nobh option
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.1.768/9447 is trying to acquire lock:
ffff88805b746bf8 (&ei->i_data_sem/3){++++}-{4:4}, at: ext4_truncate+0x678/0x1280 fs/ext4/inode.c:4575

but task is already holding lock:
ffff88805b747590 (&ei->i_data_sem/3){++++}-{4:4}, at: ext4_truncate+0x678/0x1280 fs/ext4/inode.c:4575

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&ei->i_data_sem/3);
  lock(&ei->i_data_sem/3);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

5 locks held by syz.1.768/9447:
 #0: ffff88807d1fc420 (sb_writers#4){.+.+}-{0:0}, at: vfs_truncate+0x336/0x720 fs/open.c:96
 #1: ffff88805b747700 (&sb->s_type->i_mutex_key#12){++++}-{4:4}, at: inode_lock_killable include/linux/fs.h:1033 [inline]
 #1: ffff88805b747700 (&sb->s_type->i_mutex_key#12){++++}-{4:4}, at: do_truncate+0x14e/0x240 fs/open.c:63
 #2: ffff88805b7478a0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock include/linux/fs.h:1083 [inline]
 #2: ffff88805b7478a0 (mapping.invalidate_lock#2){++++}-{4:4}, at: ext4_setattr+0xff8/0x27c0 fs/ext4/inode.c:5911
 #3: ffff88805b747590 (&ei->i_data_sem/3){++++}-{4:4}, at: ext4_truncate+0x678/0x1280 fs/ext4/inode.c:4575
 #4: ffff88805b7473e8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_write_trylock_xattr fs/ext4/xattr.h:164 [inline]
 #4: ffff88805b7473e8 (&ei->xattr_sem){++++}-{4:4}, at: ext4_try_to_expand_extra_isize fs/ext4/inode.c:6382 [inline]
 #4: ffff88805b7473e8 (&ei->xattr_sem){++++}-{4:4}, at: __ext4_mark_inode_dirty+0x606/0x8b0 fs/ext4/inode.c:6463

stack backtrace:
CPU: 0 UID: 0 PID: 9447 Comm: syz.1.768 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_deadlock_bug.cold+0xbd/0xca kernel/locking/lockdep.c:3041
 check_deadlock kernel/locking/lockdep.c:3093 [inline]
 validate_chain kernel/locking/lockdep.c:3895 [inline]
 __lock_acquire+0x12bb/0x2630 kernel/locking/lockdep.c:5237
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x1cf/0x380 kernel/locking/lockdep.c:5825
 down_write+0x8b/0x1f0 kernel/locking/rwsem.c:1590
 ext4_truncate+0x678/0x1280 fs/ext4/inode.c:4575
 ext4_evict_inode+0x8be/0x1990 fs/ext4/inode.c:272
 evict+0x3c2/0xad0 fs/inode.c:846
 iput_final fs/inode.c:1966 [inline]
 iput.part.0+0x605/0xf50 fs/inode.c:2015
 iput+0x35/0x40 fs/inode.c:1981
 ext4_xattr_set_entry+0x62e/0x20b0 fs/ext4/xattr.c:1849
 ext4_xattr_ibody_set+0x3d3/0x5d0 fs/ext4/xattr.c:2273
 ext4_xattr_move_to_block fs/ext4/xattr.c:2676 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2744 [inline]
 ext4_expand_extra_isize_ea+0x180d/0x1d70 fs/ext4/xattr.c:2832
 __ext4_expand_extra_isize+0x346/0x480 fs/ext4/inode.c:6342
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:6385 [inline]
 __ext4_mark_inode_dirty+0x693/0x8b0 fs/ext4/inode.c:6463
 ext4_ext_truncate+0xa9/0x2f0 fs/ext4/extents.c:4557
 ext4_truncate+0xf04/0x1280 fs/ext4/inode.c:4579
 ext4_setattr+0x1fca/0x27c0 fs/ext4/inode.c:6001
 notify_change+0xb25/0x1330 fs/attr.c:556
 do_truncate+0x1df/0x240 fs/open.c:68
 vfs_truncate+0x538/0x720 fs/open.c:118
 do_sys_truncate+0xee/0x190 fs/open.c:142
 __do_sys_truncate fs/open.c:154 [inline]
 __se_sys_truncate fs/open.c:152 [inline]
 __x64_sys_truncate+0x54/0x80 fs/open.c:152
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8ae539a379
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:00007f8ae62a0028 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f8ae55d5fa0 RCX: 00007f8ae539a379
RDX: 0000000000000000 RSI: 000000000000041a RDI: 00002000000000c0
RBP: 00007f8ae542dd68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8ae55d6038 R14: 00007f8ae55d5fa0 R15: 00007ffc72ccea48
 </TASK>