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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B77DC433EF for ; Fri, 10 Jun 2022 20:16:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350564AbiFJUQQ (ORCPT ); Fri, 10 Jun 2022 16:16:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1350528AbiFJUQP (ORCPT ); Fri, 10 Jun 2022 16:16:15 -0400 Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DA5024C0B9 for ; Fri, 10 Jun 2022 13:16:14 -0700 (PDT) Received: from pps.filterd (m0109331.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25AHidpd024989 for ; Fri, 10 Jun 2022 13:16:14 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=ngiycs0SqGNoBcBOOiS6n513hBNhAYc94F0OBqdAAPA=; b=NqOkwff1ndriV/TqQJAtJRzR/JpvvR4lbX+fxMfx67z+bs2ijggeFi+39k+wAQGAWNL4 0gOQgflYbrkdH1971CCxabjXgApJatfZLuB38WHbBwvotbjy77Yi0m31qTPtFQ5SJelR Rlr1taJtGb4I6ZY3wNiRa8R9DZEri3nmduE= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3gmam8ryq4-9 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 10 Jun 2022 13:16:14 -0700 Received: from twshared5131.09.ash9.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:82::d) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.28; Fri, 10 Jun 2022 13:16:12 -0700 Received: by devbig007.nao1.facebook.com (Postfix, from userid 544533) id 408614E9D6AC; Fri, 10 Jun 2022 12:58:32 -0700 (PDT) From: Keith Busch To: , , CC: , Kernel Team , , , , , , Keith Busch Subject: [PATCHv6 11/11] iomap: add support for dma aligned direct-io Date: Fri, 10 Jun 2022 12:58:30 -0700 Message-ID: <20220610195830.3574005-12-kbusch@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220610195830.3574005-1-kbusch@fb.com> References: <20220610195830.3574005-1-kbusch@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-GUID: YpZOQ_p8Tfhh3irUaxmMRrgJyP946SqS X-Proofpoint-ORIG-GUID: YpZOQ_p8Tfhh3irUaxmMRrgJyP946SqS X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.874,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-10_08,2022-06-09_02,2022-02-23_01 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org From: Keith Busch Use the address alignment requirements from the block_device for direct io instead of requiring addresses be aligned to the block size. Signed-off-by: Keith Busch Reviewed-by: Christoph Hellwig --- fs/iomap/direct-io.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c index 370c3241618a..5d098adba443 100644 --- a/fs/iomap/direct-io.c +++ b/fs/iomap/direct-io.c @@ -242,7 +242,6 @@ static loff_t iomap_dio_bio_iter(const struct iomap_i= ter *iter, struct inode *inode =3D iter->inode; unsigned int blkbits =3D blksize_bits(bdev_logical_block_size(iomap->bd= ev)); unsigned int fs_block_size =3D i_blocksize(inode), pad; - unsigned int align =3D iov_iter_alignment(dio->submit.iter); loff_t length =3D iomap_length(iter); loff_t pos =3D iter->pos; unsigned int bio_opf; @@ -253,7 +252,8 @@ static loff_t iomap_dio_bio_iter(const struct iomap_i= ter *iter, size_t copied =3D 0; size_t orig_count; =20 - if ((pos | length | align) & ((1 << blkbits) - 1)) + if ((pos | length) & ((1 << blkbits) - 1) || + !bdev_iter_is_aligned(iomap->bdev, dio->submit.iter)) return -EINVAL; =20 if (iomap->type =3D=3D IOMAP_UNWRITTEN) { --=20 2.30.2