[S390] kernel: Use local_irq_save() for memcpy_real()
authorMichael Holzheu <holzheu@linux.vnet.ibm.com>
Wed, 11 Apr 2012 12:28:06 +0000 (14:28 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 11 Apr 2012 12:28:24 +0000 (14:28 +0200)
commitb785e0d06ac551f80204742682be3218158234d1
treee0128220a97d1e7478c5ae695062ecd18b3a738b
parentdae1df42f544ce3969d437dfa835169210593240
[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>
arch/s390/mm/maccess.c