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[S390] qdio: leave inbound SBALs primed

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It is not required to change the state of primed SBALs. Leaving them
primed saves a SQBS instruction under z/VM.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Jan Glauber 2009-06-22 12:08:14 +02:00 committed by Martin Schwidefsky
parent cf9a031c2c
commit f0a0b15e0f
1 changed files with 0 additions and 7 deletions
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7
drivers/s390/cio/qdio_main.c
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@ -455,13 +455,6 @@ static inline void inbound_primed(struct qdio_q *q, int count)
count--;
if (!count)
return;
/*
* Need to change all PRIMED buffers to NOT_INIT, otherwise
* we're loosing initiative in the thinint code.
*/
set_buf_states(q, q->first_to_check, SLSB_P_INPUT_NOT_INIT,
count);
}
static int get_inbound_buffer_frontier(struct qdio_q *q)