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BUG: KCSAN: data-race in folio_mapping / page_cache_delete_batch

write to 0xffffea0005125bd8 of 8 bytes by task 16108 on cpu 1:
 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+0x20/0x30 mm/truncate.c:452
 kill_bdev block/bdev.c:75 [inline]
 set_blocksize+0x24e/0x270 block/bdev.c:151
 sb_set_blocksize block/bdev.c:160 [inline]
 sb_min_blocksize+0x92/0x110 block/bdev.c:176
 __ext4_fill_super fs/ext4/super.c:4346 [inline]
 ext4_fill_super+0x3b7/0x5000 fs/ext4/super.c:5517
 get_tree_bdev+0x2b4/0x3b0 fs/super.c:1323
 ext4_get_tree+0x18/0x20 fs/ext4/super.c:5547
 vfs_get_tree+0x49/0x190 fs/super.c:1530
 do_new_mount+0x200/0x650 fs/namespace.c:3040
 path_mount+0x4ad/0xbb0 fs/namespace.c:3370
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x281/0x2d0 fs/namespace.c:3568
 __x64_sys_mount+0x63/0x70 fs/namespace.c:3568
 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 0xffffea0005125bd8 of 8 bytes by task 16106 on cpu 0:
 folio_mapping+0x8e/0x110 mm/util.c:806
 folio_evictable mm/internal.h:136 [inline]
 lru_add_fn+0x12e/0x520 mm/swap.c:210
 folio_batch_move_lru+0x1e1/0x2a0 mm/swap.c:246
 lru_add_drain_cpu+0x73/0x250 mm/swap.c:626
 lru_add_drain+0x21/0x60 mm/swap.c:730
 __pagevec_release+0x3a/0x70 mm/swap.c:1029
 pagevec_release include/linux/pagevec.h:71 [inline]
 __filemap_fdatawait_range+0x1f1/0x260 mm/filemap.c:527
 filemap_write_and_wait_range+0xfc/0x1d0 mm/filemap.c:682
 __iomap_dio_rw+0x5dc/0x1000 fs/iomap/direct-io.c:573
 iomap_dio_rw+0x3c/0x80 fs/iomap/direct-io.c:690
 ext4_dio_read_iter fs/ext4/file.c:79 [inline]
 ext4_file_read_iter+0x22d/0x2a0 fs/ext4/file.c:130
 call_read_iter include/linux/fs.h:2181 [inline]
 generic_file_splice_read+0xde/0x2b0 fs/splice.c:309
 do_splice_to fs/splice.c:793 [inline]
 splice_direct_to_actor+0x26c/0x620 fs/splice.c:865
 do_splice_direct+0xfb/0x180 fs/splice.c:974
 do_sendfile+0x3bf/0x910 fs/read_write.c:1249
 __do_sys_sendfile64 fs/read_write.c:1317 [inline]
 __se_sys_sendfile64 fs/read_write.c:1303 [inline]
 __x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1303
 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: 0xffff8881023e0588 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 16106 Comm: syz-executor.4 Not tainted 6.0.0-rc1-syzkaller-00340-g50cd95ac4654-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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