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=-9.9 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_GIT 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 43F23C4BA0A for ; Wed, 26 Feb 2020 08:39:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1873D2084E for ; Wed, 26 Feb 2020 08:39:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="XVbbGf+C" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727359AbgBZIi7 (ORCPT ); Wed, 26 Feb 2020 03:38:59 -0500 Received: from aserp2120.oracle.com ([141.146.126.78]:44660 "EHLO aserp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726425AbgBZIi7 (ORCPT ); Wed, 26 Feb 2020 03:38:59 -0500 Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01Q8bfkv157629; Wed, 26 Feb 2020 08:38:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=acpLegKDnU44X1fRbDFiV4FGyBMPOWOiU9STyDSbBAY=; b=XVbbGf+CU/1nfp8cxB3Ti/kDZxHlO3nwMTsDYkleaW0wvMxZPY/lnts/Lj5eQHrdq9dr Y/Q7slRYS0ziB0c7yKjKS9sxK1FtH99BMalmxTbChWIFwEZE8WcAPTa/6H6cu7aka287 1+M+6GGKiUpC6PP6s6oZsGu1ZN2WGDUd5YvMz6PqEWD3JVeWWDytukFC+dr5TAbCcXRa Z3ImBvOyKjJLS2UTLqi1fnGIj4C+wFXYy4347abylOs+m/UMAlQ8UYp+UgoNNV17sTJA UxMDUoAvNJOSd2lL2UY1KWSIsSnO30UT+bFwaAmp9wPlnleTi2nHeuC8deTNOTVdTgZn cQ== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by aserp2120.oracle.com with ESMTP id 2ydcsrhxat-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Feb 2020 08:38:57 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 01Q8adkN044043; Wed, 26 Feb 2020 08:38:57 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserp3030.oracle.com with ESMTP id 2ydcs9b4cu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Feb 2020 08:38:57 +0000 Received: from abhmp0005.oracle.com (abhmp0005.oracle.com [141.146.116.11]) by aserv0121.oracle.com (8.14.4/8.13.8) with ESMTP id 01Q8cuJl010146; Wed, 26 Feb 2020 08:38:56 GMT Received: from localhost.localdomain (/114.88.246.185) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 26 Feb 2020 00:38:56 -0800 From: Bob Liu To: linux-block@vger.kernel.org Cc: axboe@kernel.dk, martin.petersen@oracle.com, linux-fsdevel@vger.kernel.org, darrick.wong@oracle.com, io-uring@vger.kernel.org, Bob Liu Subject: [PATCH 3/4] block_dev: support protect information passthrough Date: Wed, 26 Feb 2020 16:37:18 +0800 Message-Id: <20200226083719.4389-4-bob.liu@oracle.com> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20200226083719.4389-1-bob.liu@oracle.com> References: <20200226083719.4389-1-bob.liu@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9542 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 phishscore=0 bulkscore=0 spamscore=0 mlxlogscore=999 mlxscore=0 suspectscore=1 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002260065 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9542 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxscore=0 adultscore=0 suspectscore=1 bulkscore=0 malwarescore=0 spamscore=0 impostorscore=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=999 phishscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002260065 Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org 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); + break; + } + } + qc = submit_bio(bio); if (polled) -- 2.9.5