BUG: sleeping function called from invalid context at mm/util.c:743
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 15880, name: syz.0.2609
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.0.2609/15880:
 #0: ffff8880279bc420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1157
 #1: ffff888148c4da48 (&mapping->i_private_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff888148c4da48 (&mapping->i_private_lock){+.+.}-{3:3}, at: __buffer_migrate_folio+0x241/0x5d0 mm/migrate.c:853
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 0 UID: 0 PID: 15880 Comm: syz.0.2609 Not tainted 6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 __might_resched+0x558/0x6c0 kernel/sched/core.c:8818
 folio_mc_copy+0x140/0x1d0 mm/util.c:743
 __migrate_folio mm/migrate.c:758 [inline]
 filemap_migrate_folio+0xb4/0x4c0 mm/migrate.c:943
 __buffer_migrate_folio+0x3ec/0x5d0 mm/migrate.c:874
 move_to_new_folio+0x2ae/0xc30 mm/migrate.c:1050
 migrate_folio_move mm/migrate.c:1358 [inline]
 migrate_folios_move mm/migrate.c:1710 [inline]
 migrate_pages_batch+0x1e86/0x30b0 mm/migrate.c:1957
 migrate_pages_sync mm/migrate.c:1987 [inline]
 migrate_pages+0x2028/0x36c0 mm/migrate.c:2096
 compact_zone+0x365d/0x4dd0 mm/compaction.c:2689
 compact_node mm/compaction.c:2958 [inline]
 compact_nodes mm/compaction.c:2980 [inline]
 sysctl_compaction_handler+0x498/0x9a0 mm/compaction.c:3031
 proc_sys_call_handler+0x60a/0x950 fs/proc/proc_sysctl.c:601
 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1158
 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x281/0x3d0 fs/splice.c:1227
 do_sendfile+0x582/0x8c0 fs/read_write.c:1368
 __do_sys_sendfile64 fs/read_write.c:1423 [inline]
 __se_sys_sendfile64+0x102/0x1e0 fs/read_write.c:1415
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4f9ab8e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4f9b9b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f4f9adb6160 RCX: 00007f4f9ab8e969
RDX: 00002000000000c0 RSI: 0000000000000006 RDI: 0000000000000007
RBP: 00007f4f9ac10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4f9adb6160 R15: 00007f4f9aedfa28
 </TASK>
BUG: sleeping function called from invalid context at mm/util.c:743
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 15880, name: syz.0.2609
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
2 locks held by syz.0.2609/15880:
 #0: ffff8880279bc420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x220 fs/splice.c:1157
 #1: ffff888148c4da48 (&mapping->i_private_lock){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #1: ffff888148c4da48 (&mapping->i_private_lock){+.+.}-{3:3}, at: __buffer_migrate_folio+0x241/0x5d0 mm/migrate.c:853
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 UID: 0 PID: 15880 Comm: syz.0.2609 Tainted: G        W           6.15.0-rc3-syzkaller-00032-ga79be02bba5c #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 __might_resched+0x558/0x6c0 kernel/sched/core.c:8818
 folio_mc_copy+0x140/0x1d0 mm/util.c:743
 __migrate_folio mm/migrate.c:758 [inline]
 filemap_migrate_folio+0xb4/0x4c0 mm/migrate.c:943
 __buffer_migrate_folio+0x3ec/0x5d0 mm/migrate.c:874
 move_to_new_folio+0x2ae/0xc30 mm/migrate.c:1050
 migrate_folio_move mm/migrate.c:1358 [inline]
 migrate_folios_move mm/migrate.c:1710 [inline]
 migrate_pages_batch+0x1e86/0x30b0 mm/migrate.c:1957
 migrate_pages_sync mm/migrate.c:1987 [inline]
 migrate_pages+0x2028/0x36c0 mm/migrate.c:2096
 compact_zone+0x365d/0x4dd0 mm/compaction.c:2689
 compact_node mm/compaction.c:2958 [inline]
 compact_nodes mm/compaction.c:2980 [inline]
 sysctl_compaction_handler+0x498/0x9a0 mm/compaction.c:3031
 proc_sys_call_handler+0x60a/0x950 fs/proc/proc_sysctl.c:601
 iter_file_splice_write+0xbdf/0x1530 fs/splice.c:738
 do_splice_from fs/splice.c:935 [inline]
 direct_splice_actor+0x11b/0x220 fs/splice.c:1158
 splice_direct_to_actor+0x595/0xc90 fs/splice.c:1102
 do_splice_direct_actor fs/splice.c:1201 [inline]
 do_splice_direct+0x281/0x3d0 fs/splice.c:1227
 do_sendfile+0x582/0x8c0 fs/read_write.c:1368
 __do_sys_sendfile64 fs/read_write.c:1423 [inline]
 __se_sys_sendfile64+0x102/0x1e0 fs/read_write.c:1415
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4f9ab8e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4f9b9b3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f4f9adb6160 RCX: 00007f4f9ab8e969
RDX: 00002000000000c0 RSI: 0000000000000006 RDI: 0000000000000007
RBP: 00007f4f9ac10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4f9adb6160 R15: 00007f4f9aedfa28
 </TASK>