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BUG: KCSAN: data-race in __mark_inode_dirty / __mark_inode_dirty

write to 0xffff8881004a41c0 of 8 bytes by task 6299 on cpu 1:
 __mark_inode_dirty+0x250/0x7d0 fs/fs-writeback.c:2483
 generic_update_time fs/inode.c:1942 [inline]
 inode_update_time fs/inode.c:1955 [inline]
 __file_update_time fs/inode.c:2143 [inline]
 file_modified_flags+0x1ac/0x1d0 fs/inode.c:2214
 file_modified+0x17/0x20 fs/inode.c:2230
 ext4_write_checks fs/ext4/file.c:279 [inline]
 ext4_buffered_write_iter+0x1d8/0x370 fs/ext4/file.c:295
 ext4_file_write_iter+0x297/0xe10
 call_write_iter include/linux/fs.h:2085 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x430/0x6b0 fs/read_write.c:590
 ksys_write+0xeb/0x1a0 fs/read_write.c:643
 __do_sys_write fs/read_write.c:655 [inline]
 __se_sys_write fs/read_write.c:652 [inline]
 __x64_sys_write+0x42/0x50 fs/read_write.c:652
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff8881004a41c0 of 8 bytes by task 6294 on cpu 0:
 __mark_inode_dirty+0x58/0x7d0 fs/fs-writeback.c:2434
 generic_update_time fs/inode.c:1942 [inline]
 inode_update_time fs/inode.c:1955 [inline]
 touch_atime+0x1be/0x2d0 fs/inode.c:2027
 file_accessed include/linux/fs.h:2437 [inline]
 ext4_file_mmap+0xde/0x120 fs/ext4/file.c:797
 call_mmap include/linux/fs.h:2090 [inline]
 mmap_region+0x9a1/0x1650 mm/mmap.c:2819
 do_mmap+0x67e/0xa90 mm/mmap.c:1379
 vm_mmap_pgoff+0x12e/0x240 mm/util.c:556
 ksys_mmap_pgoff+0x2b8/0x330 mm/mmap.c:1425
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x59/0x120 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x0000000000000000 -> 0x0000000000000001

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 6294 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-02723-gde927f6c0b07 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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