==================================================================
BUG: KCSAN: data-race in folio_mapping / page_cache_delete_batch

write to 0xffffea0004db21d8 of 8 bytes by task 11092 on cpu 0:
 page_cache_delete_batch+0x1ab/0x4b0 mm/filemap.c:308
 delete_from_page_cache_batch+0x190/0x2a0 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: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:3039 [inline]
 path_mount+0x11cf/0x1c40 fs/namespace.c:3369
 do_mount fs/namespace.c:3382 [inline]
 __do_sys_mount fs/namespace.c:3590 [inline]
 __se_sys_mount+0x24b/0x2f0 fs/namespace.c:3567
 __x64_sys_mount+0x63/0x70 fs/namespace.c:3567
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffea0004db21d8 of 8 bytes by task 11065 on cpu 1:
 folio_mapping+0x92/0x120 mm/util.c:766
 folio_evictable mm/internal.h:121 [inline]
 __pagevec_lru_add_fn+0x134/0x520 mm/swap.c:1022
 __pagevec_lru_add+0x1c6/0x320 mm/swap.c:1058
 lru_add_drain_cpu+0x6d/0x260 mm/swap.c:601
 lru_add_drain mm/swap.c:707 [inline]
 __pagevec_release+0x46/0xb0 mm/swap.c:995
 pagevec_release include/linux/pagevec.h:82 [inline]
 __filemap_fdatawait_range+0x1f1/0x260 mm/filemap.c:527
 file_write_and_wait_range+0x176/0x1d0 mm/filemap.c:783
 ext4_sync_file+0xad/0x570 fs/ext4/fsync.c:151
 vfs_fsync_range+0x107/0x120 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2761 [inline]
 ext4_buffered_write_iter+0x243/0x290 fs/ext4/file.c:277
 ext4_file_write_iter+0x21a/0xd70
 call_write_iter include/linux/fs.h:2079 [inline]
 do_iter_readv_writev+0x27d/0x320 fs/read_write.c:726
 do_iter_write+0x192/0x5c0 fs/read_write.c:852
 vfs_iter_write+0x4c/0x70 fs/read_write.c:893
 iter_file_splice_write+0x43a/0x790 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+0x345/0x650 fs/splice.c:891
 do_splice_direct+0x106/0x190 fs/splice.c:979
 do_sendfile+0x675/0xc40 fs/read_write.c:1246
 __do_sys_sendfile64 fs/read_write.c:1311 [inline]
 __se_sys_sendfile64 fs/read_write.c:1297 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1297
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x50 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffff8881004915b0 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 11065 Comm: syz-executor.3 Not tainted 5.17.0-syzkaller-13673-ge8b767f5e040-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================