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BUG: KCSAN: data-race in __filemap_remove_folio / filemap_write_and_wait_range

read-write to 0xffff888118bc5560 of 8 bytes by task 16937 on cpu 0:
 page_cache_delete mm/filemap.c:150 [inline]
 __filemap_remove_folio+0x224/0x320 mm/filemap.c:228
 __remove_mapping+0x35b/0x480 mm/vmscan.c:1457
 remove_mapping+0x23/0xa0 mm/vmscan.c:1490
 mapping_evict_folio mm/truncate.c:282 [inline]
 mapping_try_invalidate+0x2a9/0x3f0 mm/truncate.c:521
 invalidate_mapping_pages+0x27/0x30 mm/truncate.c:559
 ext4_dio_write_iter fs/ext4/file.c:645 [inline]
 ext4_file_write_iter+0x1100/0x1230 fs/ext4/file.c:720
 do_iter_write+0x4b4/0x7b0 fs/read_write.c:860
 vfs_iter_write+0x56/0x70 fs/read_write.c:901
 iter_file_splice_write+0x462/0x7e0 fs/splice.c:739
 do_splice_from fs/splice.c:936 [inline]
 direct_splice_actor+0x8a/0xb0 fs/splice.c:1145
 splice_direct_to_actor+0x31d/0x690 fs/splice.c:1091
 do_splice_direct+0x10d/0x190 fs/splice.c:1197
 do_sendfile+0x3b6/0x9a0 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888118bc5560 of 8 bytes by task 16954 on cpu 1:
 mapping_needs_writeback mm/filemap.c:631 [inline]
 filemap_write_and_wait_range+0x54/0x220 mm/filemap.c:680
 kiocb_write_and_wait+0x79/0x110 mm/filemap.c:2744
 __iomap_dio_rw+0x510/0x10a0 fs/iomap/direct-io.c:520
 iomap_dio_rw+0x40/0x90 fs/iomap/direct-io.c:665
 ext4_dio_read_iter fs/ext4/file.c:94 [inline]
 ext4_file_read_iter+0x21c/0x2a0 fs/ext4/file.c:145
 call_read_iter include/linux/fs.h:1865 [inline]
 copy_splice_read+0x26b/0x4b0 fs/splice.c:367
 vfs_splice_read fs/splice.c:995 [inline]
 splice_direct_to_actor+0x2aa/0x690 fs/splice.c:1072
 do_splice_direct+0x10d/0x190 fs/splice.c:1197
 do_sendfile+0x3b6/0x9a0 fs/read_write.c:1254
 __do_sys_sendfile64 fs/read_write.c:1322 [inline]
 __se_sys_sendfile64 fs/read_write.c:1308 [inline]
 __x64_sys_sendfile64+0x110/0x150 fs/read_write.c:1308
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000000000004 -> 0x0000000000000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 16954 Comm: syz-executor.0 Tainted: G        W          6.5.0-rc4-syzkaller-00227-g024ff300db33 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
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