Messages in this thread Patch in this message | | | Date | Tue, 19 Feb 2008 15:41:00 +0100 | From | Martin Schwidefsky <> | Subject | [patch 13/13] qdio: FCP/SCSI write I/O stagnates on LPAR |
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From: Ursula Braun <braunu@de.ibm.com>
If running on LPAR, qdio might overlook an incoming buffer in certain scenarios. The patch makes sure that incoming buffers are detected immediately in all situations.
Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> ---
drivers/s390/cio/qdio.c | 3 --- 1 file changed, 3 deletions(-)
Index: quilt-2.6/drivers/s390/cio/qdio.c =================================================================== --- quilt-2.6.orig/drivers/s390/cio/qdio.c +++ quilt-2.6/drivers/s390/cio/qdio.c @@ -1215,9 +1215,6 @@ tiqdio_is_inbound_q_done(struct qdio_q * if (!no_used) return 1; - if (!q->siga_sync && !irq->is_qebsm) - /* we'll check for more primed buffers in qeth_stop_polling */ - return 0; if (irq->is_qebsm) { count = 1; start_buf = q->first_to_check; -- blue skies, Martin.
"Reality continues to ruin my life." - Calvin.
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