From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Wed, 11 Apr 2012 12:28:06 +0000 (+0200)
Subject: [S390] kernel: Use local_irq_save() for memcpy_real()
X-Git-Tag: v3.4-rc4~29^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b785e0d06ac551f80204742682be3218158234d1;p=pandora-kernel.git

[S390] kernel: Use local_irq_save() for memcpy_real()

Currently in the memcpy_real() function interrupts are disabled with
__arch_local_irq_stnsm(). In order to notify lockdep that interrupts
are disabled, with this patch local_irq_save() is used instead. The
function __arch_local_irq_stnsm() is still used for switching to
real mode.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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