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BUG: KCSAN: data-race in drain_all_stock / try_charge_memcg

write to 0xffff888237d2a3c0 of 4 bytes by task 31479 on cpu 1:
 consume_stock mm/memcontrol.c:2297 [inline]
 try_charge_memcg+0xb49/0xd30 mm/memcontrol.c:2703
 try_charge mm/memcontrol.c:2884 [inline]
 charge_memcg mm/memcontrol.c:7210 [inline]
 __mem_cgroup_charge+0x63/0xf0 mm/memcontrol.c:7225
 mem_cgroup_charge include/linux/memcontrol.h:684 [inline]
 shmem_alloc_and_add_folio mm/shmem.c:1662 [inline]
 shmem_get_folio_gfp+0x44e/0xb40 mm/shmem.c:2037
 shmem_get_folio mm/shmem.c:2119 [inline]
 shmem_write_begin+0xa0/0x1b0 mm/shmem.c:2702
 generic_perform_write+0x1cclient_loop: send disconnect: Broken pipe