Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759884AbYBSOt5 (ORCPT ); Tue, 19 Feb 2008 09:49:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757440AbYBSOpk (ORCPT ); Tue, 19 Feb 2008 09:45:40 -0500 Received: from mtagate5.de.ibm.com ([195.212.29.154]:31946 "EHLO mtagate5.de.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754219AbYBSOpM (ORCPT ); Tue, 19 Feb 2008 09:45:12 -0500 Message-Id: <20080219144506.067881522@de.ibm.com> References: <20080219144047.587547541@de.ibm.com> User-Agent: quilt/0.46-1 Date: Tue, 19 Feb 2008 15:41:00 +0100 From: Martin Schwidefsky To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Cc: Ursula Braun , Martin Schwidefsky Subject: [patch 13/13] qdio: FCP/SCSI write I/O stagnates on LPAR Content-Disposition: inline; filename=013-qdio-stalls.diff Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1185 Lines: 39 From: Ursula Braun 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 Signed-off-by: Martin Schwidefsky --- 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. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/