From 939c5ae4029e1679bb93f7d09afb8c831db985bd Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 16 May 2014 09:35:02 +0200
Subject: [PATCH] s390/rwlock: add missing local_irq_restore calls

The out of line _raw_read_lock_wait_flags/_raw_write_lock_wait_flags
functions for the arch_read_lock_flags/arch_write_lock_flags  calls
fail to re-enable the interrupts after another unsuccessful try to
get the lock with compare-and-swap. The following wait would be
done with interrupts disabled which is suboptimal.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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