From patchwork Fri Feb 3 15:06:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13127994 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 CBDFAC636D7 for ; Fri, 3 Feb 2023 15:07:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233780AbjBCPHc (ORCPT ); Fri, 3 Feb 2023 10:07:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232498AbjBCPHa (ORCPT ); Fri, 3 Feb 2023 10:07:30 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AF714A2A5E; Fri, 3 Feb 2023 07:07:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=CiyB48vb6mrmTaEOVbqLR4u5Ie+kSkIibxGdt/yEGrQ=; b=D+S3e79rKed63zGKQODZ2ajajk tY9PTZKFAa2fY7TmJOLLnb65WB73dEl4Jgj/gOugeSqMbkmLbXohy1C6IwWfuiZo77jdisGjM3yt4 9xvdaWC7YH4+evg/huO/wnallnWJ+vAfbAy+KZ1lxMwOxypC9YvrMMgminhOcGcxNYLxnvCObX1OD yOODt3y4LRWDt6sPzQe9gbo91x07bQX4zJYyv+FuFp5RkEeW42m5CZNG2NJ+PmXd8QRNdkVwaLx8u Ed4Ftp13pBU7ExNTD2TCUOM24LHzJnSBzaVBjKWd5mYX39pRy/ZbN9BsCfck6fVftE+tsT0WOITG1 xZXpO+3Q==; Received: from [2001:4bb8:19a:272a:910:bb67:7287:f956] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pNxeE-002adJ-Pc; Fri, 03 Feb 2023 15:06:43 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Ilya Dryomov , "Michael S. Tsirkin" , Jason Wang , Minchan Kim , Sergey Senozhatsky , Keith Busch , Sagi Grimberg , Chaitanya Kulkarni , "Martin K. Petersen" , David Howells , Marc Dionne , Xiubo Li , Steve French , Trond Myklebust , Anna Schumaker , Mike Marshall , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Chuck Lever , linux-block@vger.kernel.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, kvm@vger.kernel.org, netdev@vger.kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, devel@lists.orangefs.org, io-uring@vger.kernel.org, linux-mm@kvack.org, Johannes Thumshirn Subject: [PATCH 02/23] block: add a bvec_set_folio helper Date: Fri, 3 Feb 2023 16:06:13 +0100 Message-Id: <20230203150634.3199647-3-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230203150634.3199647-1-hch@lst.de> References: <20230203150634.3199647-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org A smaller wrapper around bvec_set_page that takes a folio instead. There are only two potential users for this in the tree, but the number will grow in the future. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni Reviewed-by: Johannes Thumshirn --- include/linux/bvec.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/linux/bvec.h b/include/linux/bvec.h index 9e3dac51eb26b6..2bae1134499e7f 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -50,6 +50,19 @@ static inline void bvec_set_page(struct bio_vec *bv, struct page *page, bv->bv_offset = offset; } +/** + * bvec_set_folio - initialize a bvec based off a struct folio + * @bv: bvec to initialize + * @folio: folio the bvec should point to + * @len: length of the bvec + * @offset: offset into the folio + */ +static inline void bvec_set_folio(struct bio_vec *bv, struct folio *folio, + unsigned int len, unsigned int offset) +{ + bvec_set_page(bv, &folio->page, len, offset); +} + struct bvec_iter { sector_t bi_sector; /* device address in 512 byte sectors */