From patchwork Mon Jan 30 09:21:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13120541 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 8E409C54EED for ; Mon, 30 Jan 2023 09:23:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236301AbjA3JX4 (ORCPT ); Mon, 30 Jan 2023 04:23:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234878AbjA3JXi (ORCPT ); Mon, 30 Jan 2023 04:23:38 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 56D3B125B7; Mon, 30 Jan 2023 01:23:28 -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=qHieNPI7z3sFtodokWVnoougmLvZVnqE3Y/VparMyFY=; b=ODubD1C2BRMqrFChW7fD2/w9bG Bek9dBQcKN5N+ru2staBvvFXiwAiWim7hYwhHUZGSLXX24jbnEbAqdmS5Ajj9+NlnFCavBXfsfhs3 XI6lzCu2GeqKtRgevITrArS3zGcwLMRZMxlr4utu1juNhvass81bDd906uTcf5xiZsb6cCOqyl8nK m98KeGJ9SE/V3c3ZRyUJeGtRoQ5nsh6i4jGrfSPRpVbUu4hyqMBJxi9JGDZJNhoGK0a94aCuKbtu8 rmmcphUXaeiu9gmh/7++19/XF9wkSuRyP7q7ZgI/exYaX7pXYil/gd10qOnCgTC3hp+S0hEq97BKO qjR+Sy/Q==; Received: from [2001:4bb8:19a:272a:732e:e417:47d7:2f4a] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pMQMh-002o1D-D3; Mon, 30 Jan 2023 09:22:15 +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 Subject: [PATCH 03/23] block: add a bvec_set_virt helper Date: Mon, 30 Jan 2023 10:21:37 +0100 Message-Id: <20230130092157.1759539-4-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230130092157.1759539-1-hch@lst.de> References: <20230130092157.1759539-1-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: netdev@vger.kernel.org A small wrapper around bvec_set_page for callers that have a virtual address. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Reviewed-by: Chaitanya Kulkarni --- include/linux/bvec.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/linux/bvec.h b/include/linux/bvec.h index f094512ce3bda9..7031d83af02267 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -63,6 +63,18 @@ static inline void bvec_set_folio(struct bio_vec *bv, struct folio *folio, bvec_set_page(bv, &folio->page, len, offset); } +/** + * bvec_set_virt - initialize a bvec based on a virtual address + * @bv: bvec to initialize + * @vaddr: virtual address to set the bvec to + * @len: length of the bvec + */ +static inline void bvec_set_virt(struct bio_vec *bv, void *vaddr, + unsigned int len) +{ + bvec_set_page(bv, virt_to_page(vaddr), len, offset_in_page(vaddr)); +} + struct bvec_iter { sector_t bi_sector; /* device address in 512 byte sectors */