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BUG: KCSAN: data-race in folio_mapping / page_cache_delete

write to 0xffffea00041e0f58 of 8 bytes by task 6139 on cpu 1:
 page_cache_delete+0x313/0x370 mm/filemap.c:143
 __filemap_remove_folio+0x3b/0xf0 mm/filemap.c:219
 filemap_remove_folio+0x69/0x120 mm/filemap.c:251
 truncate_inode_folio+0x1f6/0x200 mm/truncate.c:223
 truncate_inode_partial_folio+0x2a7/0x350 mm/truncate.c:255
 truncate_inode_pages_range+0x62d/0xad0 mm/truncate.c:390
 truncate_inode_pages+0x20/0x30 mm/truncate.c:461
 kill_bdev block/bdev.c:77 [inline]
 set_blocksize+0x24e/0x270 block/bdev.c:153
 sb_set_blocksize block/bdev.c:162 [inline]
 sb_min_blocksize+0x92/0x110 block/bdev.c:178
 __ext4_fill_super+0xfe/0x5a00 fs/ext4/super.c:4413
 ext4_fill_super+0x10b/0x2f0 fs/ext4/super.c:5587
 get_tree_bdev+0x2c2/0x3d0 fs/super.c:1292
 vfs_get_tree+0x4a/0x1a0 fs/super.c:1497
 do_new_mount fs/namespace.c:3026 [inline]
 path_mount+0x11cf/0x1c40 fs/namespace.c:3356
 do_mount fs/namespace.c:3369 [inline]
 __do_sys_mount fs/namespace.c:3577 [inline]
 __se_sys_mount+0x24b/0x2f0 fs/namespace.c:3554
 __x64_sys_mount+0x63/0x70 fs/namespace.c:3554
 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+0x44/0xae

read to 0xffffea00041e0f58 of 8 bytes by task 6142 on cpu 0:
 folio_mapping+0x92/0x120 mm/util.c:717
 folio_evictable mm/internal.h:121 [inline]
 __pagevec_lru_add_fn+0x134/0x4f0 mm/swap.c:1048
 __pagevec_lru_add+0x1c6/0x320 mm/swap.c:1076
 folio_add_lru+0x115/0x160 mm/swap.c:469
 filemap_add_folio+0xf8/0x150 mm/filemap.c:965
 __filemap_get_folio+0x4c4/0x690 mm/filemap.c:2007
 pagecache_get_page+0x26/0x190 mm/folio-compat.c:125
 grab_cache_page_write_begin+0x3f/0x50 mm/folio-compat.c:139
 ext4_da_write_begin+0x281/0x530 fs/ext4/inode.c:2966
 generic_perform_write+0x1c8/0x400 mm/filemap.c:3772
 ext4_buffered_write_iter+0x19d/0x290 fs/ext4/file.c:270
 ext4_file_write_iter+0x21a/0xd70
 call_write_iter include/linux/fs.h:2081 [inline]
 new_sync_write fs/read_write.c:504 [inline]
 vfs_write+0x7f5/0x950 fs/read_write.c:591
 ksys_write+0xd9/0x190 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+0x44/0xae

value changed: 0xffff888100429bb0 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 6142 Comm: syz-executor.4 Not tainted 5.17.0-syzkaller-02003-g3bf03b9a0839-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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