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BUG: KCSAN: data-race in folio_mapping / page_cache_delete

write to 0xffffea0004f0f558 of 8 bytes by task 22398 on cpu 1:
 page_cache_delete+0x30d/0x360 mm/filemap.c:143
 __filemap_remove_folio+0x3b/0xf0 mm/filemap.c:223
 invalidate_complete_folio2 mm/truncate.c:594 [inline]
 invalidate_inode_pages2_range+0x450/0x670 mm/truncate.c:682
 __iomap_dio_rw+0x5f9/0xf50 fs/iomap/direct-io.c:582
 iomap_dio_rw+0x3c/0x80 fs/iomap/direct-io.c:689
 ext4_dio_write_iter fs/ext4/file.c:566 [inline]
 ext4_file_write_iter+0xaa9/0x1210 fs/ext4/file.c:677
 do_iter_readv_writev+0x27b/0x300
 do_iter_write+0x16f/0x5c0 fs/read_write.c:868
 vfs_iter_write+0x4c/0x70 fs/read_write.c:909
 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x80/0xa0 fs/splice.c:936
 splice_direct_to_actor+0x345/0x660 fs/splice.c:891
 do_splice_direct+0xfb/0x180 fs/splice.c:979
 do_sendfile+0x3ad/0x900 fs/read_write.c:1262
 __do_sys_sendfile64 fs/read_write.c:1327 [inline]
 __se_sys_sendfile64 fs/read_write.c:1313 [inline]
 __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1313
 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 0xffffea0004f0f558 of 8 bytes by task 22409 on cpu 0:
 folio_mapping+0x92/0x120 mm/util.c:806
 page_mapping+0x3b/0xe0 mm/folio-compat.c:14
 page_evictable mm/internal.h:148 [inline]
 __munlock_page+0x51a/0x1340 mm/mlock.c:152
 mlock_pagevec+0x9a/0x150 mm/mlock.c:204
 munlock_page+0x25f/0x2a0 mm/mlock.c:304
 munlock_vma_page mm/internal.h:539 [inline]
 page_remove_rmap+0x17e/0x220 mm/rmap.c:1467
 zap_pte_range+0x6ca/0x1560 mm/memory.c:1446
 zap_pmd_range mm/memory.c:1567 [inline]
 zap_pud_range mm/memory.c:1596 [inline]
 zap_p4d_range mm/memory.c:1617 [inline]
 unmap_page_range+0x2dc/0x3d0 mm/memory.c:1638
 unmap_single_vma+0x157/0x230 mm/memory.c:1686
 zap_page_range_single+0x1c8/0x260 mm/memory.c:1774
 unmap_mapping_range_vma mm/memory.c:3478 [inline]
 unmap_mapping_range_tree+0xbe/0x100 mm/memory.c:3495
 unmap_mapping_pages+0xbc/0xd0 mm/memory.c:3561
 invalidate_inode_pages2_range+0x1bf/0x670 mm/truncate.c:663
 __iomap_dio_rw+0x5f9/0xf50 fs/iomap/direct-io.c:582
 iomap_dio_rw+0x3c/0x80 fs/iomap/direct-io.c:689
 ext4_dio_write_iter fs/ext4/file.c:566 [inline]
 ext4_file_write_iter+0xaa9/0x1210 fs/ext4/file.c:677
 do_iter_readv_writev+0x27b/0x300
 do_iter_write+0x16f/0x5c0 fs/read_write.c:868
 vfs_iter_write+0x4c/0x70 fs/read_write.c:909
 iter_file_splice_write+0x44a/0x7c0 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0x80/0xa0 fs/splice.c:936
 splice_direct_to_actor+0x345/0x660 fs/splice.c:891
 do_splice_direct+0xfb/0x180 fs/splice.c:979
 do_sendfile+0x3ad/0x900 fs/read_write.c:1262
 __do_sys_sendfile64 fs/read_write.c:1327 [inline]
 __se_sys_sendfile64 fs/read_write.c:1313 [inline]
 __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1313
 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: 0xffff888159c594a0 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 22409 Comm: syz-executor.4 Not tainted 5.19.0-rc7-syzkaller-00005-gca85855bdcae-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
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