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[S390] cio: ensure single load of irq handler pointer
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Thu, 26 Mar 2009 14:24:10 +0000 (15:24 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 26 Mar 2009 14:24:14 +0000 (15:24 +0100)
Add barrier to prevent compiler from reloading pointer to irq handler.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

No differences found
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