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BUG: KCSAN: data-race in ext4_free_inodes_count / ext4_free_inodes_set

write to 0xffff88810403e00e of 2 bytes by task 3362 on cpu 1:
 ext4_free_inodes_set+0x1f/0x80 fs/ext4/super.c:405
 ext4_free_inode+0x43a/0x810 fs/ext4/ialloc.c:323
 ext4_evict_inode+0xb25/0xdd0 fs/ext4/inode.c:303
 evict+0x1ae/0x420 fs/inode.c:667
 iput_final fs/inode.c:1741 [inline]
 iput+0x432/0x5c0 fs/inode.c:1767
 do_unlinkat+0x282/0x4c0 fs/namei.c:4414
 __do_sys_unlink fs/namei.c:4455 [inline]
 __se_sys_unlink fs/namei.c:4453 [inline]
 __x64_sys_unlink+0x30/0x40 fs/namei.c:4453
 x64_sys_call+0x28a3/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:88
 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 0xffff88810403e00e of 2 bytes by task 3365 on cpu 0:
 ext4_free_inodes_count+0x1c/0x80 fs/ext4/super.c:349
 __ext4_new_inode+0xb6f/0x2270 fs/ext4/ialloc.c:1040
 ext4_mkdir+0x27f/0x740 fs/ext4/namei.c:3013
 vfs_mkdir+0x1f4/0x320 fs/namei.c:4131
 do_mkdirat+0x12f/0x2a0 fs/namei.c:4154
 __do_sys_mkdirat fs/namei.c:4169 [inline]
 __se_sys_mkdirat fs/namei.c:4167 [inline]
 __x64_sys_mkdirat+0x50/0x60 fs/namei.c:4167
 x64_sys_call+0x2ce5/0x2d70 arch/x86/include/generated/asm/syscalls_64.h:259
 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

value changed: 0x1853 -> 0x1854

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 3365 Comm: syz-executor.1 Not tainted 6.10.0-rc1-syzkaller-00267-gcc8ed4d0a848 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
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