---
title: kThreadWaitKernelRWLockUpgrade
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12.4+]
path: kernel/block_hint_t/kthreadwaitkernelrwlockupgrade
---

# kThreadWaitKernelRWLockUpgrade

## Declaration

```occ
kThreadWaitKernelRWLockUpgrade = 0x09
```