From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 5 Dec 2014 08:48:29 +0000 (+0000)
Subject: x86, smpboot: Remove pointless preempt_disable() in native_smp_prepare_cpus()
X-Git-Tag: omap-for-v3.19/fixes-rc1~23^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=250a1ac685f147d4f4b2f132cfaffcce1a6792c1;p=pandora-kernel.git

x86, smpboot: Remove pointless preempt_disable() in native_smp_prepare_cpus()

There is no reason to keep preemption disabled in this function.

We only have two other threads live: kthreadd and idle. Neither of
them is going to preempt. But that preempt_disable forces all the code
inside to do GFP_ATOMIC allocations which is just insane.

Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Borislav Petkov <bp@alien8.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20141205084147.153643952@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

Reading git-diff-tree failed