msm: acpuclock-krait: Userspace voltage control
ghost: Improve UI and bootup performance

* ROW for UI, NOOP for bootup
* 512kB of readahead is a good number
* Speeds up the bootup process due to all
  I/O requests

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
ghost: Enable cpu boost driver

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>
sched: provide per cpu-cgroup option to notify on migrations

On systems where CPUs may run asynchronously, task migrations
between CPUs running at grossly different speeds can cause
problems.

This change provides a mechanism to notify a subsystem
in the kernel if a task in a particular cgroup migrates to a
different CPU. Other subsystems (such as cpufreq) may then
register for this notifier to take appropriate action when
such a task is migrated.

The cgroup attribute to set for this behavior is
"notify_on_migrate" .

Change-Id: Ie1868249e53ef901b89c837fdc33b0ad0c0a4590
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
ghost: Notify on CPU task migrations

Signed-off-by: Zhao Wei Liew <zhaoweiliew@gmail.com>