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BUG: KCSAN: data-race in folio_mapping / page_cache_delete_batch

write to 0xffffea0004e963d8 of 8 bytes by task 30208 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_inode_pages_final+0x54/0x60 mm/truncate.c:487
 ext4_evict_inode+0x22b/0xe40 fs/ext4/inode.c:219
 evict+0x1aa/0x410 fs/inode.c:664
 iput_final fs/inode.c:1744 [inline]
 iput+0x3f9/0x580 fs/inode.c:1770
 do_unlinkat+0x2b3/0x510 fs/namei.c:4267
 __do_sys_unlink fs/namei.c:4308 [inline]
 __se_sys_unlink fs/namei.c:4306 [inline]
 __x64_sys_unlink+0x2c/0x30 fs/namei.c:4306
 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 0xffffea0004e963d8 of 8 bytes by task 30346 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_inactive_list+0x44a/0x740 mm/vmscan.c:2389
 shrink_list mm/vmscan.c:2616 [inline]
 shrink_lruvec+0x3aa/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
 memory_max_write+0x1b0/0x420 mm/memcontrol.c:6292
 cgroup_file_write+0x167/0x300 kernel/cgroup/cgroup.c:3891
 kernfs_fop_write_iter+0x1d3/0x2c0 fs/kernfs/file.c:290
 call_write_iter include/linux/fs.h:2058 [inline]
 new_sync_write fs/read_write.c:504 [inline]
 vfs_write+0x71c/0x890 fs/read_write.c:591
 ksys_write+0xe8/0x1a0 fs/read_write.c:644
 __do_sys_write fs/read_write.c:656 [inline]
 __se_sys_write fs/read_write.c:653 [inline]
 __x64_sys_write+0x3e/0x50 fs/read_write.c:653
 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: 0xffff8881378f6dc0 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 30346 Comm: syz-executor.3 Not tainted 5.19.0-rc7-syzkaller-00212-gaf2c9ac24019-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
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