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BUG: KCSAN: data-race in delete_from_page_cache_batch / folio_mapping

write to 0xffffea00047f9e58 of 8 bytes by task 9270 on cpu 0:
 page_cache_delete_batch mm/filemap.c:308 [inline]
 delete_from_page_cache_batch+0x31b/0x770 mm/filemap.c:334
 truncate_inode_pages_range+0x355/0x830 mm/truncate.c:369
 truncate_inode_pages mm/truncate.c:448 [inline]
 truncate_pagecache+0x4f/0x70 mm/truncate.c:743
 ext4_setattr+0xabe/0xf10 fs/ext4/inode.c:5616
 notify_change+0xa5c/0xad0 fs/attr.c:482
 do_truncate+0xfa/0x140 fs/open.c:65
 handle_truncate fs/namei.c:3216 [inline]
 do_open fs/namei.c:3561 [inline]
 path_openat+0x1840/0x1b60 fs/namei.c:3714
 do_filp_open+0x105/0x220 fs/namei.c:3741
 do_sys_openat2+0xb5/0x2a0 fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __x64_sys_openat+0xef/0x110 fs/open.c:1337
 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 0xffffea00047f9e58 of 8 bytes by task 9272 on cpu 1:
 folio_mapping+0x8e/0x110 mm/util.c:752
 folio_evictable mm/internal.h:138 [inline]
 move_folios_to_lru+0x12d/0x6d0 mm/vmscan.c:2413
 shrink_inactive_list+0x426/0x760 mm/vmscan.c:2529
 shrink_list mm/vmscan.c:2767 [inline]
 shrink_lruvec+0x2ba/0x6f0 mm/vmscan.c:5951
 shrink_node_memcgs+0x240/0x450 mm/vmscan.c:6138
 shrink_node+0x1d7/0x930 mm/vmscan.c:6169
 shrink_zones+0x2c1/0x5d0 mm/vmscan.c:6407
 do_try_to_free_pages+0x195/0x760 mm/vmscan.c:6469
 try_to_free_mem_cgroup_pages+0x1d0/0x420 mm/vmscan.c:6786
 try_charge_memcg+0x2cf/0x9b0 mm/memcontrol.c:2687
 try_charge mm/memcontrol.c:2830 [inline]
 mem_cgroup_charge_skmem+0x4d/0x130 mm/memcontrol.c:7277
 sock_reserve_memory+0xb0/0x3a0 net/core/sock.c:1025
 sk_setsockopt+0xf79/0x1cc0 net/core/sock.c:1525
 sock_setsockopt+0x38/0x50 net/core/sock.c:1549
 __sys_setsockopt+0x17c/0x230 net/socket.c:2242
 __do_sys_setsockopt net/socket.c:2257 [inline]
 __se_sys_setsockopt net/socket.c:2254 [inline]
 __x64_sys_setsockopt+0x62/0x70 net/socket.c:2254
 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: 0xffff88815b11f420 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 9272 Comm: syz-executor.0 Tainted: G        W          6.2.0-rc6-syzkaller-00011-gc0b67534c95c-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
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