msm: hotplug: Fix firing up all CPUs while resuming

Checks introduced in 3435c9fc98c71f287bb3256a53cb20921344521c  do not let us
fire up all cpus with online_cpu() function if max_cpus_online != 4.

Fix this by letting resume function to online all cpus independently.

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
mm: page-writeback.c: local functions should not be exposed globally

The function global_dirtyable_memory is only referenced in this file and
should be marked static to prevent it from being exposed globally.

This quiets the sparse warning:

warning: symbol 'global_dirtyable_memory' was not declared. Should it be static?

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>