[PATCH v8 3/4] ata: Add APM X-Gene SoC SATA host controller driver

[Tejun Heo]

On Tue, Jan 14, 2014 at 11:03:12AM -0500, Tejun Heo wrote:
> > As mentioned, the flush requires immediately after reading the CI.
> > Otherwise, there is still an chance that the command is completed and
> > the OS notified the upper layer while the data is still in flight. For
> > the initial version, I will remove the flush (IRQ wrapper) and submit
> > separate patch.
> 
> The function is called with ap->lock held.  Nothing can happen
> inbetween.

Oh, or do you mean that upper layer may get data which hasn't finish
transferring without the flush?

-- 
tejun