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BUG: KCSAN: data-race in delete_from_page_cache_batch / folio_mapping

write to 0xffffea00044fc4d8 of 8 bytes by task 5574 on cpu 1:
 page_cache_delete_batch mm/filemap.c:317 [inline]
 delete_from_page_cache_batch+0x308/0x700 mm/filemap.c:343
 truncate_inode_pages_range+0x1c5/0x6b0 mm/truncate.c:343
 truncate_inode_pages+0x24/0x30 mm/truncate.c:423
 kill_bdev block/bdev.c:90 [inline]
 set_blocksize+0x267/0x280 block/bdev.c:172
 sb_set_blocksize block/bdev.c:181 [inline]
 sb_min_blocksize+0x63/0xe0 block/bdev.c:197
 ext4_load_super fs/ext4/super.c:4991 [inline]
 __ext4_fill_super fs/ext4/super.c:5188 [inline]
 ext4_fill_super+0x38b/0x39e0 fs/ext4/super.c:5664
 get_tree_bdev+0x256/0x2e0 fs/super.c:1635
 ext4_get_tree+0x1c/0x30 fs/ext4/super.c:5696
 vfs_get_tree+0x56/0x1e0 fs/super.c:1800
 do_new_mount+0x227/0x690 fs/namespace.c:3472
 path_mount+0x49b/0xb30 fs/namespace.c:3799
 do_mount fs/namespace.c:3812 [inline]
 __do_sys_mount fs/namespace.c:4020 [inline]
 __se_sys_mount+0x27c/0x2d0 fs/namespace.c:3997
 __x64_sys_mount+0x67/0x80 fs/namespace.c:3997
 x64_sys_call+0x203e/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffea00044fc4d8 of 8 bytes by task 28 on cpu 0:
 folio_mapping+0x97/0x110 mm/util.c:815
 folio_evictable mm/internal.h:370 [inline]
 lru_add_fn+0x89/0x440 mm/swap.c:183
 folio_batch_move_lru+0x15f/0x230 mm/swap.c:215
 lru_add_drain_cpu+0x77/0x260 mm/swap.c:661
 lru_add_drain mm/swap.c:775 [inline]
 __folio_batch_release+0x51/0xc0 mm/swap.c:1096
 folio_batch_release include/linux/pagevec.h:101 [inline]
 mpage_prepare_extent_to_map+0xa44/0xb80 fs/ext4/inode.c:2571
 ext4_do_writepages+0x6ea/0x2110 fs/ext4/inode.c:2706
 ext4_writepages+0x159/0x2e0 fs/ext4/inode.c:2842
 do_writepages+0x1d8/0x480 mm/page-writeback.c:2683
 __writeback_single_inode+0x91/0x870 fs/fs-writeback.c:1651
 writeback_sb_inodes+0x559/0xb20 fs/fs-writeback.c:1947
 wb_writeback+0x25e/0x720 fs/fs-writeback.c:2127
 wb_do_writeback fs/fs-writeback.c:2274 [inline]
 wb_workfn+0x1a8/0x940 fs/fs-writeback.c:2314
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312
 worker_thread+0x526/0x6e0 kernel/workqueue.c:3389
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0xffff8881004c0b58 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 28 Comm: kworker/u8:1 Not tainted 6.11.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: writeback wb_workfn (flush-7:3)
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