s390/spinlock: optimize spinlock code sequence
authorPhilipp Hachtmann <phacht@linux.vnet.ibm.com>
Mon, 7 Apr 2014 16:25:23 +0000 (18:25 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Tue, 20 May 2014 06:58:42 +0000 (08:58 +0200)
Use lowcore constant to improve the code generated for spinlocks.

[ Martin Schwidefsky: patch breakdown and code beautification ]

Signed-off-by: Philipp Hachtmann <phacht@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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