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s390/pgtable: make pgste lock an explicit barrier
authorChristian Borntraeger <borntraeger@de.ibm.com>
Wed, 5 Jun 2013 07:25:34 +0000 (09:25 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 5 Jun 2013 15:36:21 +0000 (17:36 +0200)
Getting and Releasing the pgste lock has lock semantics. Make the
code an explicit barrier.

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

No differences found
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