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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8BC6FC43334 for ; Fri, 10 Jun 2022 20:16:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:CC:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ngiycs0SqGNoBcBOOiS6n513hBNhAYc94F0OBqdAAPA=; b=ihA/t0jpVzCdrVAbw+N72GR7kx eLi3c1VfDYZitPFNexBb3zdu+Q8TQIVE9sBJyXy6oWT3S5f1aLJOYAuuC81THtTs417y1jxGGZd6Q WOEl0QpRo0qnHxCoFrmMxVIjbxlcg5Vika5D8+ITLTOpTh/O1dKjpMilJMjG+wOJTzTaPylkczfiW mkwxLfqxDBeLIFkmGRbb/WTN+ltNd/SYo1OH1B5cI7b0ZbK8W5m0Oh7ub3QG7k1AVgvAHSiAZrMrE 8I4w0xDmh5CbPJp3gew4EbTK1fUP9IV9/lVVTCs6xbmt8Cqh0yHjLqEdpCOU1uG+1/KH1e0Qddmpa G1kPoK4g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nzl3M-009fwB-0v; Fri, 10 Jun 2022 20:16:20 +0000 Received: from mx0b-00082601.pphosted.com ([67.231.153.30]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nzl3G-009ftm-FR for linux-nvme@lists.infradead.org; Fri, 10 Jun 2022 20:16:15 +0000 Received: from pps.filterd (m0109332.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 25AIDwan029072 for ; Fri, 10 Jun 2022 13:16:13 -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 3gmb208ph9-4 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 10 Jun 2022 13:16:13 -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: rHodmA7M_vWhjOdYBxpPVR7ENzu8wfaA X-Proofpoint-ORIG-GUID: rHodmA7M_vWhjOdYBxpPVR7ENzu8wfaA 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220610_131614_671694_11346E28 X-CRM114-Status: GOOD ( 16.74 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.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