s390/sclp: single increment assignment control
Set a new option bit of the attach command to speed up memory hotplug. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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@ -252,6 +252,7 @@ static int sclp_attach_storage(u8 id)
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if (!sccb)
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return -ENOMEM;
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sccb->header.length = PAGE_SIZE;
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sccb->header.function_code = 0x40;
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rc = sclp_sync_request_timeout(0x00080001 | id << 8, sccb,
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SCLP_QUEUE_INTERVAL);
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if (rc)
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