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BUG: KCSAN: data-race in __lru_add_drain_all / folios_put_refs

write to 0xffff888237c2ac08 of 1 bytes by task 6503 on cpu 0:
 folio_batch_reinit include/linux/pagevec.h:50 [inline]
 folios_put_refs+0x293/0x2e0 mm/swap.c:1028
 folios_put include/linux/mm.h:1565 [inline]
 folio_batch_move_lru+0x298/0x2c0 mm/swap.c:240
 folio_batch_add_and_move mm/swap.c:249 [inline]
 folio_add_lru+0xd4/0x130 mm/swap.c:532
 migrate_folio_move mm/migrate.c:1303 [inline]
 migrate_pages_batch+0x1143/0x18a0 mm/migrate.c:1778
 migrate_pages_sync mm/migrate.c:1844 [inline]
 migrate_pages+0xd41/0x17f0 mm/migrate.c:1953
 do_mbind mm/mempolicy.c:1390 [inline]
 kernel_mbind mm/mempolicy.c:1532 [inline]
 __do_sys_mbind mm/mempolicy.c:1606 [inline]
 __se_sys_mbind+0xeb6/0x1030 mm/mempolicy.c:1602
 __x64_sys_mbind+0x78/0x90 mm/mempolicy.c:1602
 x64_sys_call+0x1cee/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:238
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888237c2ac08 of 1 bytes by task 6482 on cpu 1:
 folio_batch_count include/linux/pagevec.h:56 [inline]
 cpu_needs_drain mm/swap.c:810 [inline]
 __lru_add_drain_all+0x137/0x420 mm/swap.c:904
 lru_cache_disable+0x1f/0x30 mm/swap.c:957
 do_mbind mm/mempolicy.c:1307 [inline]
 kernel_mbind mm/mempolicy.c:1532 [inline]
 __do_sys_mbind mm/mempolicy.c:1606 [inline]
 __se_sys_mbind+0x48c/0x1030 mm/mempolicy.c:1602
 __x64_sys_mbind+0x78/0x90 mm/mempolicy.c:1602
 x64_sys_call+0x1cee/0x2d30 arch/x86/include/generated/asm/syscalls_64.h:238
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1d0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 6482 Comm: syz-executor.4 Not tainted 6.9.0-rc4-syzkaller-00031-g96fca68c4fbf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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