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BUG: KCSAN: data-race in folio_mapping / page_cache_delete_batch

write to 0xffffea0004eccf58 of 8 bytes by task 23993 on cpu 0:
 page_cache_delete_batch+0x1a7/0x470 mm/filemap.c:308
 delete_from_page_cache_batch+0x18f/0x2a0 mm/filemap.c:334
 truncate_inode_pages_range+0x3ca/0xae0 mm/truncate.c:370
 truncate_inode_pages mm/truncate.c:452 [inline]
 truncate_pagecache+0x4f/0x70 mm/truncate.c:753
 ext4_setattr+0x9a0/0xde0 fs/ext4/inode.c:5502
 notify_change+0x8e6/0xa00 fs/attr.c:424
 do_truncate+0xf7/0x140 fs/open.c:65
 handle_truncate fs/namei.c:3176 [inline]
 do_open fs/namei.c:3524 [inline]
 path_openat+0x1834/0x1b30 fs/namei.c:3653
 do_filp_open+0x105/0x220 fs/namei.c:3680
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1278
 do_sys_open fs/open.c:1294 [inline]
 __do_sys_openat fs/open.c:1310 [inline]
 __se_sys_openat fs/open.c:1305 [inline]
 __x64_sys_openat+0xef/0x110 fs/open.c:1305
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffffea0004eccf58 of 8 bytes by task 23972 on cpu 1:
 folio_mapping+0x92/0x120 mm/util.c:806
 page_mapping+0x3b/0xe0 mm/folio-compat.c:14
 page_evictable mm/internal.h:148 [inline]
 move_pages_to_lru+0x12d/0xd00 mm/vmscan.c:2273
 shrink_active_list+0xa34/0xc30 mm/vmscan.c:2531
 shrink_list mm/vmscan.c:2610 [inline]
 shrink_lruvec+0x382/0x6d0 mm/vmscan.c:2933
 shrink_node_memcgs+0x23e/0x400 mm/vmscan.c:3122
 shrink_node+0x8c3/0x10f0 mm/vmscan.c:3245
 shrink_zones+0x2c1/0x5d0 mm/vmscan.c:3482
 do_try_to_free_pages+0x165/0x720 mm/vmscan.c:3540
 try_to_free_mem_cgroup_pages+0x1cd/0x420 mm/vmscan.c:3854
 try_charge_memcg+0x270/0x960 mm/memcontrol.c:2622
 try_charge mm/memcontrol.c:2757 [inline]
 mem_cgroup_charge_skmem+0x4d/0x130 mm/memcontrol.c:7051
 sock_reserve_memory+0xaf/0x1e0 net/core/sock.c:1016
 sock_setsockopt+0xeeb/0x1a40 net/core/sock.c:1481
 __sys_setsockopt+0x242/0x2b0 net/socket.c:2250
 __do_sys_setsockopt net/socket.c:2265 [inline]
 __se_sys_setsockopt net/socket.c:2262 [inline]
 __x64_sys_setsockopt+0x62/0x70 net/socket.c:2262
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0xffff8881063dd360 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 23972 Comm: syz-executor.0 Not tainted 5.19.0-rc8-syzkaller-00155-g6a010258447d-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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