From: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Date: Mon, 1 Mar 2010 02:58:09 +0000 (+0000)
Subject: powerpc: Reset kernel stack on cpu online from cede state
X-Git-Tag: v2.6.34-rc2~64^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8dbce53cc249a76e9450708d291fce5a7e29c6a1;p=pandora-kernel.git

powerpc: Reset kernel stack on cpu online from cede state

Cpu hotplug (offline) without dlpar operation will place cpu
in cede state and the extended_cede_processor() function will
return when resumed.

Kernel stack pointer needs to be reset before
start_secondary() is called to continue the online operation.

Added new function start_secondary_resume() to do the above
steps.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Cc: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

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