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BUG: KCSAN: data-race in ext4_free_inodes_count / ext4_free_inodes_set

write to 0xffff88810394100e of 2 bytes by task 5915 on cpu 1:
 ext4_free_inodes_set+0x1f/0x80 fs/ext4/super.c:398
 __ext4_new_inode+0x15c5/0x2270 fs/ext4/ialloc.c:1216
 ext4_symlink+0x242/0x590 fs/ext4/namei.c:3399
 vfs_symlink+0xc2/0x1a0 fs/namei.c:4480
 do_symlinkat+0xe3/0x320 fs/namei.c:4506
 __do_sys_symlinkat fs/namei.c:4522 [inline]
 __se_sys_symlinkat fs/namei.c:4519 [inline]
 __x64_sys_symlinkat+0x62/0x70 fs/namei.c:4519
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff88810394100e of 2 bytes by task 5921 on cpu 0:
 ext4_free_inodes_count+0x1c/0x80 fs/ext4/super.c:342
 __ext4_new_inode+0xb6e/0x2270 fs/ext4/ialloc.c:1040
 ext4_symlink+0x242/0x590 fs/ext4/namei.c:3399
 vfs_symlink+0xc2/0x1a0 fs/namei.c:4480
 do_symlinkat+0xe3/0x320 fs/namei.c:4506
 __do_sys_symlinkat fs/namei.c:4522 [inline]
 __se_sys_symlinkat fs/namei.c:4519 [inline]
 __x64_sys_symlinkat+0x62/0x70 fs/namei.c:4519
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x185a -> 0x1859

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 5921 Comm: syz-executor.1 Not tainted 6.6.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
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