Re: [PATCH v5 3/4] ata: Enabling ATA Command Priorities

2016-10-13 Thread Tejun Heo
Hello, On Thu, Oct 13, 2016 at 04:00:30PM -0700, Adam Manzanares wrote: > This patch checks to see if an ATA device supports NCQ command priorities. > If so and the user has specified an iocontext that indicates > IO_PRIO_CLASS_RT then we build a tf with a high priority command. > > This is done

[PATCH v5 3/4] ata: Enabling ATA Command Priorities

2016-10-13 Thread Adam Manzanares
This patch checks to see if an ATA device supports NCQ command priorities. If so and the user has specified an iocontext that indicates IO_PRIO_CLASS_RT then we build a tf with a high priority command. This is done to improve the tail latency of commands that are high priority by passing priority