From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3715AC4BA13 for ; Wed, 26 Feb 2020 16:05:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 04AB621556 for ; Wed, 26 Feb 2020 16:05:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="naP77yd3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727213AbgBZQFD (ORCPT ); Wed, 26 Feb 2020 11:05:03 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:44148 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727048AbgBZQFD (ORCPT ); Wed, 26 Feb 2020 11:05:03 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01QFxPmQ164659; Wed, 26 Feb 2020 16:04:59 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=date : from : to : cc : subject : message-id : references : mime-version : content-type : in-reply-to; s=corp-2020-01-29; bh=/op6eB0GJIWmE5awTMCc59CC2KBIYmyjFl9AwZ4pu7w=; b=naP77yd3khxdk8GZLMAnBM9+66OE1nM0HX9YOPaVPvTUQo9FTpSZjsgCb1sZtAzHHi6x +kDw7rKpPQIdmkLUvH6IU0z6hIYhhULzizHu+ucWvFb3oZvOrrm0V8/kbD1Hf0T3FfLN VcL6ltG/47H6Sx5U0QYXGacqht02A9lPE/L2W4DlWAIrqpfXQRdB+deYNxf5NYOrieem NiyovZXLaLu9BnshaWlzd117Ba2M+ruKZsbZdcOrnENLFuhG5wVUvQw8+PU23pJlXxK9 Uk9A/kkBqQKclzVZ4dh5Fn2C3CFkBgaFFmIDg0doMj9Cl4j7XgHHsYENi565rXlHGkF4 zQ== Received: from aserp3020.oracle.com (aserp3020.oracle.com [141.146.126.70]) by userp2130.oracle.com with ESMTP id 2ydcsncmny-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Feb 2020 16:04:59 +0000 Received: from pps.filterd (aserp3020.oracle.com [127.0.0.1]) by aserp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01QFwHOr052230; Wed, 26 Feb 2020 16:04:59 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserp3020.oracle.com with ESMTP id 2ydcs5c4ry-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Feb 2020 16:04:58 +0000 Received: from abhmp0013.oracle.com (abhmp0013.oracle.com [141.146.116.19]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 01QG4vYs020904; Wed, 26 Feb 2020 16:04:57 GMT Received: from localhost (/67.169.218.210) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 26 Feb 2020 08:04:57 -0800 Date: Wed, 26 Feb 2020 08:04:56 -0800 From: "Darrick J. Wong" To: Bob Liu Cc: linux-block@vger.kernel.org, axboe@kernel.dk, martin.petersen@oracle.com, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org Subject: Re: [PATCH 3/4] block_dev: support protect information passthrough Message-ID: <20200226160456.GC8044@magnolia> References: <20200226083719.4389-1-bob.liu@oracle.com> <20200226083719.4389-4-bob.liu@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200226083719.4389-4-bob.liu@oracle.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9543 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 bulkscore=0 phishscore=0 mlxlogscore=999 spamscore=0 suspectscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002260111 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9543 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 malwarescore=0 bulkscore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 spamscore=0 adultscore=0 suspectscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002260111 Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Wed, Feb 26, 2020 at 04:37:18PM +0800, Bob Liu wrote: > Support protect information passed from use sapce, on direct io > is considered now. > > Signed-off-by: Bob Liu > --- > fs/block_dev.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/fs/block_dev.c b/fs/block_dev.c > index 69bf2fb..10e3299 100644 > --- a/fs/block_dev.c > +++ b/fs/block_dev.c > @@ -348,6 +348,13 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) > loff_t pos = iocb->ki_pos; > blk_qc_t qc = BLK_QC_T_NONE; > int ret = 0; > + struct iovec *pi_iov; > + > + if (iocb->ki_flags & IOCB_USE_PI) { > + ret = iter_slice_protect_info(iter, nr_pages, &pi_iov); > + if (ret) > + return -EINVAL; > + } > > if ((pos | iov_iter_alignment(iter)) & > (bdev_logical_block_size(bdev) - 1)) > @@ -411,6 +418,16 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages) > polled = true; > } > > + /* Add protection information to bio */ > + if (iocb->ki_flags & IOCB_USE_PI) { > + ret = bio_integrity_prep_from_iovec(bio, pi_iov); > + if (ret) { > + bio->bi_status = BLK_STS_IOERR; > + bio_endio(bio); If you're just going to mash all the error codes into IOERR, then this could very well become bio_io_error() ? --D > + break; > + } > + } > + > qc = submit_bio(bio); > > if (polled) > -- > 2.9.5 >