======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Tainted: G             L     
------------------------------------------------------
syz.7.2223/15234 is trying to acquire lock:
ffff8880659f89a0 (&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1025 [inline]
ffff8880659f89a0 (&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_xattr_set+0xbeb/0x13a0 fs/ocfs2/xattr.c:3666

but task is already holding lock:
ffff8880659fa2e8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x494/0x13a0 fs/ocfs2/xattr.c:3627

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (&oi->ip_xattr_sem){++++}-{4:4}:
       down_read+0x4a/0x330 kernel/locking/rwsem.c:1574
       ocfs2_init_acl+0x2fd/0x7e0 fs/ocfs2/acl.c:367
       ocfs2_mknod+0x166a/0x2240 fs/ocfs2/namei.c:414
       ocfs2_create+0x195/0x460 fs/ocfs2/namei.c:676
       lookup_open+0xc0d/0x1a40 fs/namei.c:4567
       open_last_lookups fs/namei.c:4767 [inline]
       path_openat+0x677/0x1d60 fs/namei.c:4997
       do_file_open+0x23e/0x4a0 fs/namei.c:5029
       do_sys_openat2+0x115/0x200 fs/open.c:1417
       do_sys_open fs/open.c:1423 [inline]
       __do_sys_openat fs/open.c:1439 [inline]
       __se_sys_openat fs/open.c:1434 [inline]
       __x64_sys_openat+0x138/0x170 fs/open.c:1434
       do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
       do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #2 (&journal->j_trans_barrier){.+.+}-{4:4}:
       down_read+0x4a/0x330 kernel/locking/rwsem.c:1574
       ocfs2_start_trans+0x3ae/0x700 fs/ocfs2/journal.c:369
       ocfs2_block_group_alloc fs/ocfs2/suballoc.c:801 [inline]
       ocfs2_reserve_suballoc_bits+0x7b7/0x4850 fs/ocfs2/suballoc.c:950
       ocfs2_reserve_new_metadata_blocks+0x415/0x9a0 fs/ocfs2/suballoc.c:1100
       ocfs2_expand_inline_dir fs/ocfs2/dir.c:2873 [inline]
       ocfs2_extend_dir+0xd35/0x4b60 fs/ocfs2/dir.c:3235
       ocfs2_prepare_dir_for_insert+0x339a/0x5190 fs/ocfs2/dir.c:4353
       ocfs2_mknod+0xa16/0x2240 fs/ocfs2/namei.c:298
       ocfs2_mkdir+0x180/0x430 fs/ocfs2/namei.c:660
       vfs_mkdir+0x40c/0x620 fs/namei.c:5410
       filename_mkdirat+0x285/0x510 fs/namei.c:5443
       __do_sys_mkdirat fs/namei.c:5464 [inline]
       __se_sys_mkdirat+0x35/0x150 fs/namei.c:5461
       do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
       do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (sb_internal#2){.+.+}-{0:0}:
       percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline]
       percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline]
       __sb_start_write include/linux/fs/super.h:19 [inline]
       sb_start_intwrite include/linux/fs/super.h:177 [inline]
       ocfs2_start_trans+0x2ac/0x700 fs/ocfs2/journal.c:367
       ocfs2_remove_btree_range+0x819/0x15f0 fs/ocfs2/alloc.c:5769
       ocfs2_commit_truncate+0xc60/0x2560 fs/ocfs2/alloc.c:7383
       ocfs2_truncate_for_delete fs/ocfs2/inode.c:735 [inline]
       ocfs2_wipe_inode fs/ocfs2/inode.c:902 [inline]
       ocfs2_delete_inode fs/ocfs2/inode.c:1191 [inline]
       ocfs2_evict_inode+0xf8f/0x4390 fs/ocfs2/inode.c:1333
       evict+0x624/0xb50 fs/inode.c:822
       d_delete_notify include/linux/fsnotify.h:381 [inline]
       vfs_rmdir+0x413/0x6a0 fs/namei.c:5528
       filename_rmdir+0x292/0x520 fs/namei.c:5572
       __do_sys_rmdir fs/namei.c:5595 [inline]
       __se_sys_rmdir+0x2e/0x140 fs/namei.c:5592
       do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
       do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3181 [inline]
       check_prevs_add kernel/locking/lockdep.c:3300 [inline]
       validate_chain kernel/locking/lockdep.c:3924 [inline]
       __lock_acquire+0x1520/0x2cf0 kernel/locking/lockdep.c:5253
       lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5886
       down_write+0x96/0x200 kernel/locking/rwsem.c:1631
       inode_lock include/linux/fs.h:1025 [inline]
       ocfs2_xattr_set+0xbeb/0x13a0 fs/ocfs2/xattr.c:3666
       __vfs_setxattr+0x442/0x480 fs/xattr.c:223
       __vfs_setxattr_noperm+0x12a/0x660 fs/xattr.c:257
       vfs_setxattr+0x163/0x360 fs/xattr.c:344
       do_setxattr fs/xattr.c:662 [inline]
       filename_setxattr+0x296/0x630 fs/xattr.c:690
       path_setxattrat+0x408/0x450 fs/xattr.c:734
       __do_sys_setxattr fs/xattr.c:768 [inline]
       __se_sys_setxattr fs/xattr.c:764 [inline]
       __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:764
       do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
       do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  &ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE] --> &journal->j_trans_barrier --> &oi->ip_xattr_sem

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&oi->ip_xattr_sem);
                               lock(&journal->j_trans_barrier);
                               lock(&oi->ip_xattr_sem);
  lock(&ocfs2_sysfile_lock_key[TRUNCATE_LOG_SYSTEM_INODE]);

 *** DEADLOCK ***

locks held by syz.7.2223/15234: 3, last CPU#0:
 #0: ffff88807a8e0460 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90 fs/namespace.c:494
 #1: ffff8880659fa5a0 (&sb->s_type->i_mutex_key#26){++++}-{4:4}, at: inode_lock include/linux/fs.h:1025 [inline]
 #1: ffff8880659fa5a0 (&sb->s_type->i_mutex_key#26){++++}-{4:4}, at: vfs_setxattr+0x13e/0x360 fs/xattr.c:343
 #2: ffff8880659fa2e8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x494/0x13a0 fs/ocfs2/xattr.c:3627

stack backtrace:
CPU: 0 UID: 0 PID: 15234 Comm: syz.7.2223 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/16/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2059
 check_noncircular+0x12e/0x150 kernel/locking/lockdep.c:2191
 check_prev_add kernel/locking/lockdep.c:3181 [inline]
 check_prevs_add kernel/locking/lockdep.c:3300 [inline]
 validate_chain kernel/locking/lockdep.c:3924 [inline]
 __lock_acquire+0x1520/0x2cf0 kernel/locking/lockdep.c:5253
 lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5886
 down_write+0x96/0x200 kernel/locking/rwsem.c:1631
 inode_lock include/linux/fs.h:1025 [inline]
 ocfs2_xattr_set+0xbeb/0x13a0 fs/ocfs2/xattr.c:3666
 __vfs_setxattr+0x442/0x480 fs/xattr.c:223
 __vfs_setxattr_noperm+0x12a/0x660 fs/xattr.c:257
 vfs_setxattr+0x163/0x360 fs/xattr.c:344
 do_setxattr fs/xattr.c:662 [inline]
 filename_setxattr+0x296/0x630 fs/xattr.c:690
 path_setxattrat+0x408/0x450 fs/xattr.c:734
 __do_sys_setxattr fs/xattr.c:768 [inline]
 __se_sys_setxattr fs/xattr.c:764 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:764
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff55dd9e0d9
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:00007ff55ec61028 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007ff55e026090 RCX: 00007ff55dd9e0d9
RDX: 000020000000a440 RSI: 0000200000000280 RDI: 0000200000000000
RBP: 00007ff55de35024 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000090f R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff55e026128 R14: 00007ff55e026090 R15: 00007ffca8199d58
 </TASK>