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BUG: KCSAN: data-race in __delete_from_page_cache / folio_mapping

write to 0xffffea00040ccb58 of 8 bytes by task 24336 on cpu 1:
 page_cache_delete mm/filemap.c:144 [inline]
 __delete_from_page_cache+0x1b7/0x2c0 mm/filemap.c:231
 delete_from_page_cache+0x82/0x140 mm/filemap.c:265
 truncate_inode_page+0x3e/0x50 mm/truncate.c:219
 shmem_undo_range+0x280/0xed0 mm/shmem.c:954
 shmem_truncate_range mm/shmem.c:1057 [inline]
 shmem_evict_inode+0x115/0x560 mm/shmem.c:1139
 evict+0x1aa/0x410 fs/inode.c:588
 iput_final fs/inode.c:1664 [inline]
 iput+0x3fa/0x510 fs/inode.c:1690
 dentry_unlink_inode+0x23d/0x250 fs/dcache.c:376
 __dentry_kill+0x293/0x450 fs/dcache.c:582
 dput+0x218/0x430 fs/dcache.c:888
 do_renameat2+0x6fb/0xa20 fs/namei.c:4779
 __do_sys_rename fs/namei.c:4823 [inline]
 __se_sys_rename fs/namei.c:4821 [inline]
 __x64_sys_rename+0x58/0x60 fs/namei.c:4821
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffea00040ccb58 of 8 bytes by task 26759 on cpu 0:
 folio_mapping+0x92/0x120 mm/util.c:722
 folio_evictable mm/internal.h:91 [inline]
 __pagevec_lru_add_fn+0x81/0x380 mm/swap.c:1033
 __pagevec_lru_add+0x1c3/0x270 mm/swap.c:1061
 lru_add_drain_cpu+0x6a/0x260 mm/swap.c:603
 lru_add_drain+0x21/0x60 mm/swap.c:707
 free_pages_and_swap_cache+0x1d/0x200 mm/swap_state.c:317
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:242 [inline]
 tlb_flush_mmu+0x597/0x5f0 mm/mmu_gather.c:249
 zap_pte_range+0xe66/0x10f0 mm/memory.c:1432
 zap_pmd_range mm/memory.c:1481 [inline]
 zap_pud_range mm/memory.c:1510 [inline]
 zap_p4d_range mm/memory.c:1531 [inline]
 unmap_page_range+0x2dc/0x3d0 mm/memory.c:1552
 unmap_single_vma+0x157/0x210 mm/memory.c:1597
 unmap_vmas+0xd0/0x180 mm/memory.c:1629
 exit_mmap+0x23d/0x470 mm/mmap.c:3171
 __mmput+0x27/0x1b0 kernel/fork.c:1113
 mmput+0x3d/0x50 kernel/fork.c:1134
 exit_mm+0xdb/0x170 kernel/exit.c:507
 do_exit+0x608/0x17a0 kernel/exit.c:819
 do_group_exit+0x17d/0x180 kernel/exit.c:929
 __do_sys_exit_group+0xb/0x10 kernel/exit.c:940
 __se_sys_exit_group+0x5/0x10 kernel/exit.c:938
 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:938
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffff8881071dbe20 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 26759 Comm: syz-executor.3 Not tainted 5.15.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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