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

write to 0xffffea0004d5b5d8 of 8 bytes by task 3021 on cpu 0:
 page_cache_delete mm/filemap.c:144 [inline]
 __delete_from_page_cache+0x1b7/0x2c0 mm/filemap.c:231
 delete_from_page_cache+0x97/0x1e0 mm/filemap.c:266
 truncate_inode_page mm/truncate.c:229 [inline]
 truncate_inode_pages_range+0x8d7/0xa00 mm/truncate.c:407
 truncate_inode_pages+0x20/0x30 mm/truncate.c:435
 kill_bdev block/bdev.c:78 [inline]
 set_blocksize+0x24e/0x270 block/bdev.c:158
 sb_set_blocksize block/bdev.c:167 [inline]
 sb_min_blocksize+0x92/0x110 block/bdev.c:183
 fat_fill_super+0xe95/0x2af0 fs/fat/inode.c:1646
 vfat_fill_super+0x2c/0x40 fs/fat/namei_vfat.c:1051
 mount_bdev+0x1e8/0x290 fs/super.c:1370
 vfat_mount+0x2d/0x40 fs/fat/namei_vfat.c:1058
 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610
 vfs_get_tree+0x4a/0x1a0 fs/super.c:1500
 do_new_mount fs/namespace.c:2988 [inline]
 path_mount+0x11cf/0x1c40 fs/namespace.c:3318
 do_mount fs/namespace.c:3331 [inline]
 __do_sys_mount fs/namespace.c:3539 [inline]
 __se_sys_mount+0x24b/0x2f0 fs/namespace.c:3516
 __x64_sys_mount+0x63/0x70 fs/namespace.c:3516
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffffea0004d5b5d8 of 8 bytes by task 3014 on cpu 1:
 folio_mapping+0x92/0x120 mm/util.c:722
 folio_evictable mm/internal.h:112 [inline]
 __pagevec_lru_add_fn+0x81/0x380 mm/swap.c:1043
 __pagevec_lru_add+0x1c3/0x270 mm/swap.c:1071
 lru_add_drain_cpu+0x6a/0x260 mm/swap.c:613
 lru_add_drain mm/swap.c:717 [inline]
 __pagevec_release+0x4b/0xc0 mm/swap.c:997
 pagevec_release include/linux/pagevec.h:81 [inline]
 clean_bdev_aliases+0x3b4/0x450 fs/buffer.c:1650
 clean_bdev_bh_alias include/linux/buffer_head.h:179 [inline]
 __block_write_begin_int+0x6a8/0x1010 fs/buffer.c:2018
 __block_write_begin fs/buffer.c:2060 [inline]
 block_write_begin fs/buffer.c:2120 [inline]
 cont_write_begin+0x4cf/0x7b0 fs/buffer.c:2469
 fat_write_begin+0x61/0xf0 fs/fat/inode.c:235
 generic_perform_write+0x1c8/0x400 mm/filemap.c:3756
 __generic_file_write_iter+0x195/0x2b0 mm/filemap.c:3851
 generic_file_write_iter+0x75/0x130 mm/filemap.c:3915
 call_write_iter include/linux/fs.h:2162 [inline]
 do_iter_readv_writev+0x2de/0x380 fs/read_write.c:725
 do_iter_write+0x192/0x5c0 fs/read_write.c:851
 vfs_iter_write+0x4c/0x70 fs/read_write.c:892
 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:1245
 __do_sys_sendfile64 fs/read_write.c:1310 [inline]
 __se_sys_sendfile64 fs/read_write.c:1296 [inline]
 __x64_sys_sendfile64+0x102/0x140 fs/read_write.c:1296
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffff888101391678 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 3014 Comm: syz-executor.3 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
syz-executor.3 (3014) used greatest stack depth: 10544 bytes left