[v4] binfmt_elf.c: use get_random_int() to fix entropy depleting
ipv4: save cpu cycles from check_leaf()

Compiler is not smart enough to avoid double BSWAP instructions in
ntohl(inet_make_mask(plen)).

Lets cache this value in struct leaf_info, (fill a hole on 64bit arches)

With route cache disabled, this saves ~2% of cpu in udpflood bench on
x86_64 machine.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 5c74501f76360ce6f410730b9b5e5976f38e8504)
Governor Nightmare cleaning code!

Conflicts:
	drivers/cpufreq/cpufreq_nightmare.c
opp4xxx_data.c: Add 1651 + Cleaning Code
tuna_ak_defconfig: Enable 1800 = 1651
cpufreq_wheatley.c: Add EARLYSUSPEND
cpufreq_nightmare.c: Spring Clean IIII
Add New Bootlogo - ak-arz-kernel-bootlogo
tuna_ak_defconfig: Disable GOV POWERSAVE, USERSPACE, SAVAGEDZEN, ADAPTIVE
tuna_ak_defconfig: Set DEFAULT SCHED FIOPS
mm.h: set VM_MAX_READAHEAD 2048 - VM_MIN_READAHEAD 16
Kernel Version: ak.521.42.berserk