From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933186Ab3D3UCY (ORCPT ); Tue, 30 Apr 2013 16:02:24 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:34640 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932661Ab3D3UCX (ORCPT ); Tue, 30 Apr 2013 16:02:23 -0400 Date: Tue, 30 Apr 2013 15:01:58 -0500 From: "Philip J. Kelleher" To: axboe@kernel.dk Cc: linux-kernel@vger.kernel.org, klebers@linux.vnet.ibm.com, brking@linux.vnet.ibm.com Subject: [PATCH 9/9] rsxx: Disallows DMA transfer during format. Message-ID: <20130430200158.GB15930@oc6784271780.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-12-10) X-TM-AS-MML: No X-Content-Scanned: Fidelis XPS MAILER x-cbid: 13043020-7182-0000-0000-0000067980F2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Philip J Kelleher Verifies the card is not formatting before DMAs are transferred. Signed-off-by: Philip J Kelleher ------------------------------------------------------------------------------- diff -uprN -X linux-block-vanilla/Documentation/dontdiff linux-block-vanilla/drivers/block/rsxx/dma.c linux-block/drivers/block/rsxx/dma.c --- linux-block-vanilla/drivers/block/rsxx/dma.c 2013-04-29 16:06:49.997249172 -0500 +++ linux-block/drivers/block/rsxx/dma.c 2013-04-29 16:10:46.960184429 -0500 @@ -721,7 +721,8 @@ int rsxx_dma_queue_bio(struct rsxx_cardi } } - if (unlikely(card->halt)) + if (unlikely(card->halt) || + unlikely(card->state == CARD_STATE_FORMATTING)) goto bvec_err; for (i = 0; i < card->n_targets; i++) {