ntfs3(loop1): Different NTFS sector size (1024) and media sector size (512).
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.1.621/9018 is trying to acquire lock:
ffff8881bcfa8278 (&wnd->rw_lock){++++}-{4:4}, at: ntfs_look_for_free_space+0xd9/0x650

but task is already holding lock:
ffff8881ad4f6ee8 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_extend_mft+0x144/0x460

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&ni->file.run_lock#2){++++}-{4:4}:
       down_read+0x47/0x2e0
       run_unpack_ex+0x7fa/0xb90
       ntfs_iget5+0x2416/0x38f0
       dir_search_u+0x1fd/0x2e0
       ntfs_lookup+0xfb/0x1f0
       path_openat+0x13bc/0x3e20
       do_filp_open+0x22d/0x490
       do_sys_openat2+0x12f/0x220
       __x64_sys_open+0x11e/0x150
       do_syscall_64+0xe2/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&wnd->rw_lock){++++}-{4:4}:
       __lock_acquire+0x15a5/0x2cf0
       lock_acquire+0x106/0x330
       down_write_nested+0x9d/0x210
       ntfs_look_for_free_space+0xd9/0x650
       attr_allocate_clusters+0x1bd/0x6b0
       attr_set_size+0x14cf/0x2cf0
       ntfs_extend_mft+0x169/0x460
       ntfs_look_free_mft+0x646/0xd70
       ntfs_create_inode+0x595/0x33e0
       ntfs_mkdir+0x3d/0x50
       vfs_mkdir+0x511/0x5b0
       do_mkdirat+0x27d/0x4b0
       __x64_sys_mkdirat+0x87/0xa0
       do_syscall_64+0xe2/0xf80
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ni->file.run_lock#2);
                               lock(&wnd->rw_lock);
                               lock(&ni->file.run_lock#2);
  lock(&wnd->rw_lock);

 *** DEADLOCK ***

5 locks held by syz.1.621/9018:
 #0: ffff8881bcfaa420 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff8881ad4f53b0 (&type->i_mutex_dir_key#13/1){+.+.}-{4:4}, at: filename_create+0x200/0x370
 #2: ffff8881ad4f5118 (&ni->ni_lock#2/6){+.+.}-{4:4}, at: ntfs_create_inode+0x17d/0x33e0
 #3: ffff8881bcfa8130 (&wnd->rw_lock/1){+.+.}-{4:4}, at: ntfs_look_free_mft+0x170/0xd70
 #4: ffff8881ad4f6ee8 (&ni->file.run_lock#2){++++}-{4:4}, at: ntfs_extend_mft+0x144/0x460

stack backtrace:
CPU: 1 UID: 0 PID: 9018 Comm: syz.1.621 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
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 print_circular_bug+0x2e1/0x300
 check_noncircular+0x12e/0x150
 __lock_acquire+0x15a5/0x2cf0
 lock_acquire+0x106/0x330
 down_write_nested+0x9d/0x210
 ntfs_look_for_free_space+0xd9/0x650
 attr_allocate_clusters+0x1bd/0x6b0
 attr_set_size+0x14cf/0x2cf0
 ntfs_extend_mft+0x169/0x460
 ntfs_look_free_mft+0x646/0xd70
 ntfs_create_inode+0x595/0x33e0
 ntfs_mkdir+0x3d/0x50
 vfs_mkdir+0x511/0x5b0
 do_mkdirat+0x27d/0x4b0
 __x64_sys_mkdirat+0x87/0xa0
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa6ddd99b97
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 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:00007fa6decace58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fa6decacee0 RCX: 00007fa6ddd99b97
RDX: 00000000000001ff RSI: 0000200000000280 RDI: 00000000ffffff9c
RBP: 0000200000000000 R08: 0000200000000080 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000200000000280
R13: 00007fa6decacea0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
ntfs3(loop1): ino=0, attr_set_size
ntfs3(loop1): ino=0, attr_set_size
ntfs3(loop1): ino=0, attr_set_size
ntfs3(loop1): ino=0, attr_set_size
