============================================
WARNING: possible recursive locking detected
6.9.0-rc7-syzkaller-00008-gee5b455b0ada #0 Not tainted
--------------------------------------------
syz-executor116/5176 is trying to acquire lock:
ffff888024af1548 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}
, at: hfsplus_get_block+0x277/0x9e0 fs/hfsplus/extents.c:260

but task is already holding lock:
ffff888024af22c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x204/0x9e0 fs/hfsplus/extents.c:576

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

       CPU0
       ----
  lock(&HFSPLUS_I(inode)->extents_lock);
  lock(&HFSPLUS_I(inode)->extents_lock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

6 locks held by syz-executor116/5176:
 #0: ffff88802bd7e420 (sb_writers#10){.+.+}-{0:0}, at: do_unlinkat+0x1d3/0x750 fs/namei.c:4382
 #1: ffff888024af1e00 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:830 [inline]
 #1: ffff888024af1e00 (&type->i_mutex_dir_key#6/1){+.+.}-{3:3}, at: do_unlinkat+0x288/0x750 fs/namei.c:4386
 #2: ffff888024af24c0 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:795 [inline]
 #2: ffff888024af24c0 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}, at: vfs_unlink+0xd3/0x910 fs/namei.c:4324
 #3: ffff88802a6a1998 (&sbi->vh_mutex){+.+.}-{3:3}, at: hfsplus_unlink+0x184/0x7f0 fs/hfsplus/dir.c:370
 #4: ffff888024af22c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x204/0x9e0 fs/hfsplus/extents.c:576
 #5: ffff88802a6a18f8 (&sbi->alloc_mutex){+.+.}-{3:3}, at: hfsplus_block_free+0xd2/0x530 fs/hfsplus/bitmap.c:182

stack backtrace:
CPU: 2 PID: 5176 Comm: syz-executor116 Not tainted 6.9.0-rc7-syzkaller-00008-gee5b455b0ada #0
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 lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
 check_deadlock kernel/locking/lockdep.c:3062 [inline]
 validate_chain kernel/locking/lockdep.c:3856 [inline]
 __lock_acquire+0x20e6/0x3b30 kernel/locking/lockdep.c:5137
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719
 __mutex_lock_common kernel/locking/mutex.c:608 [inline]
 __mutex_lock+0x175/0x9c0 kernel/locking/mutex.c:752
 hfsplus_get_block+0x277/0x9e0 fs/hfsplus/extents.c:260
 block_read_full_folio+0x38f/0xa70 fs/buffer.c:2384
 filemap_read_folio+0xe5/0x2c0 mm/filemap.c:2331
 do_read_cache_folio+0x203/0x540 mm/filemap.c:3747
 do_read_cache_page mm/filemap.c:3813 [inline]
 read_cache_page+0x5b/0x160 mm/filemap.c:3822
 read_mapping_page include/linux/pagemap.h:888 [inline]
 hfsplus_block_free+0x12f/0x530 fs/hfsplus/bitmap.c:185
 hfsplus_free_extents+0x3a6/0x520 fs/hfsplus/extents.c:363
 hfsplus_file_truncate+0x836/0x9e0 fs/hfsplus/extents.c:591
 hfsplus_delete_inode+0x18f/0x220 fs/hfsplus/inode.c:450
 hfsplus_unlink+0x583/0x7f0 fs/hfsplus/dir.c:405
 vfs_unlink+0x2fb/0x910 fs/namei.c:4335
 do_unlinkat+0x5c0/0x750 fs/namei.c:4399
 __do_sys_unlink fs/namei.c:4447 [inline]
 __se_sys_unlink fs/namei.c:4445 [inline]
 __x64_sys_unlink+0xc7/0x110 fs/namei.c:4445
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f18973bc5f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe3f29d5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007ffe3f29d7b8 RCX: 00007f18973bc5f9
RDX: 00007f18973bb691 RSI: 0000000000000000 RDI: 00000000200001c0
RBP: 00007f189742f610 R08: 0000000000000643 R09: 0000000000000000
R10: 00007ffe3f29d4a0 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffe3f29d7a8 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
hfsplus: unable to mark blocks free: error -5
hfsplus: can't free extent