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

write to 0xffffea0004205f98 of 8 bytes by task 13188 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:77 [inline]
 set_blocksize+0x24e/0x270 block/bdev.c:153
 sb_set_blocksize+0x2c/0xa0 block/bdev.c:162
 isofs_fill_super+0xfc2/0x17b0 fs/isofs/inode.c:862
 mount_bdev+0x1e2/0x280 fs/super.c:1367
 isofs_mount+0x2d/0x40 fs/isofs/inode.c:1567
 legacy_get_tree+0x70/0xc0 fs/fs_context.c:610
 vfs_get_tree+0x49/0x190 fs/super.c:1497
 do_new_mount+0x200/0x650 fs/namespace.c:3040
 path_mount+0x4b1/0xb60 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+0x46/0xb0

read to 0xffffea0004205f98 of 8 bytes by task 3945 on cpu 0:
 folio_mapping+0x92/0x120 mm/util.c:806
 folio_evictable mm/internal.h:136 [inline]
 __pagevec_lru_add_fn+0x134/0x520 mm/swap.c:1024
 __pagevec_lru_add+0x1c6/0x320 mm/swap.c:1060
 folio_add_lru+0x112/0x160 mm/swap.c:467
 filemap_add_folio+0xf8/0x150 mm/filemap.c:974
 page_cache_ra_unbounded+0x19e/0x2e0 mm/readahead.c:245
 do_page_cache_ra mm/readahead.c:293 [inline]
 force_page_cache_ra+0x1c6/0x200 mm/readahead.c:324
 page_cache_sync_ra+0xc8/0xf0 mm/readahead.c:695
 page_cache_sync_readahead include/linux/pagemap.h:1234 [inline]
 filemap_get_pages mm/filemap.c:2594 [inline]
 filemap_read+0x3ef/0x1410 mm/filemap.c:2688
 blkdev_read_iter+0x2c6/0x370 block/fops.c:594
 call_read_iter include/linux/fs.h:2052 [inline]
 new_sync_read fs/read_write.c:401 [inline]
 vfs_read+0x5a5/0x6a0 fs/read_write.c:482
 ksys_read+0xe8/0x1a0 fs/read_write.c:620
 __do_sys_read fs/read_write.c:630 [inline]
 __se_sys_read fs/read_write.c:628 [inline]
 __x64_sys_read+0x3e/0x50 fs/read_write.c:628
 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+0x46/0xb0

value changed: 0xffff88810042b5c8 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3945 Comm: udevd Not tainted 5.19.0-rc4-syzkaller-00125-ga175eca0f3d7-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2022
==================================================================
 loop4:
 loop4:
 loop4:
 loop4:
blk_print_req_error: 4 callbacks suppressed
I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
buffer_io_error: 4 callbacks suppressed
Buffer I/O error on dev loop4, logical block 0, async page read
 loop4:
 loop4:
I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Buffer I/O error on dev loop4, logical block 0, async page read
 loop4:
 loop4:
 loop4:
I/O error, dev loop4, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 0
Buffer I/O error on dev loop4, logical block 0, async page read
 loop4:
 loop4: