sched: Remove redundant update_runtime notifier

migration_call() will do all the things that update_runtime() does.
So let's remove it.

Furthermore, there is potential risk that the current code will catch
BUG_ON at line 689 of rt.c when do cpu hotplug while there are realtime
threads running because of enabling runtime twice while the rt_runtime
may already changed.

Change-Id: If2d953316d93c6b7e32f94bd49f2c10e64de6ed8
Signed-off-by: Neil Zhang <zhangwm@marvell.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1365685499-26515-1-git-send-email-zhangwm@marvell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Git-commit: c5405a495e88d93cf9b4f4cc91507c7f4afcb901
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
[mattw@codeaurora.org: resolved trivial header file context conflict]
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
netlink: Queue the kernel socket after setting the flag

Queueing the socket after setting the NETLINK_KERNEL_SOCKET on the
kernel socket.

This change is required in-order to avoid the BUG check which is
caused due to race condition between setting this flag and a
message from the app space for this kernel netlink sock.

Change-Id: I19a8edf2fe009a3020b194684a6172654f8f257a
CRs-Fixed: 681815
Signed-off-by: Vinay Krishna Eranna <veran@codeaurora.org>