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[S390] add support for nonquiescing sske
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Mon, 25 Oct 2010 14:10:14 +0000 (16:10 +0200)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Mon, 25 Oct 2010 14:10:15 +0000 (16:10 +0200)
Improve performance of the sske operation by using the nonquiescing
variant if the affected page has no mappings established. On machines
with no support for the new sske variant the mask bit will be ignored.

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

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