timer: hrtimer: Don't check idle_cpu() before calling get_nohz_timer_…

…target()

Check for current cpu's idleness is already done in implementation of
sched_select_non_idle_cpu() which is called by get_nohz_timer_target(). So, no
need to call idle_cpu() twice, once from sched_select_non_idle_cpu() and once
from timer and hrtimer before calling get_nohz_timer_target().

This patch removes calls to idle_cpu() from timer and hrtimer.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Seongmin Park <r_data@naver.com>
 drivers: mmc: disable CRC

Signed-off-by: Francisco Franco <franciscofranco.1990@gmail.com>
Signed-off-by: Seongmin Park <r_data@naver.com>
Add frandom(/dev/frandom) -Fast kernel number generator Link: http://billauer.co.il/frandom.html
random: entropy tweaks are all the rage nowadays

use nonblocking for all.  Read this web page:
http://lwn.net/Articles/489734/
modem_io.c wakelock timeout 조정
MIN_CPU_KHZ_FREQ 100 -> 200
Page-writeback 트윅
ipv4: save cpu cycles from check_leaf()
zalloc tweak
 Fixed Linux 3.0.79 bug stucking, in some cases, at least 2 cpu cores …

…on Max Freq
init/main.c: Reduce logging, remove ftrace thx temasek
Reach deeper C idle states faster thx imseyon
 ARM: 7746/1: mm: lazy cache flushing on non-mapped pages

Currently flush_dcache_page() thinks pages as non-mapped if
mapping_mapped(mapping) return false. This approach is very
coase
Wifi 수정