[PATCH 4.8 57/57] cfq: fix starvation of asynchronous writes

4.8-stable review patch. If anyone has any objections, please let me know. -- From: Glauber Costa commit 3932a86b4b9d1f0b049d64d4591ce58ad18b44ec upstream. While debugging timeouts happening in my application workload (ScyllaDB), I have observed calls to

[PATCH 4.8 57/57] cfq: fix starvation of asynchronous writes

4.8-stable review patch. If anyone has any objections, please let me know. -- From: Glauber Costa commit 3932a86b4b9d1f0b049d64d4591ce58ad18b44ec upstream. While debugging timeouts happening in my application workload (ScyllaDB), I have observed calls to open() taking a long