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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 94045C04AAF for ; Tue, 21 May 2019 08:47:28 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6C2C62173C for ; Tue, 21 May 2019 08:47:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6C2C62173C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([127.0.0.1]:49021 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hT0Qh-0004eo-MH for qemu-devel@archiver.kernel.org; Tue, 21 May 2019 04:47:27 -0400 Received: from eggs.gnu.org ([209.51.188.92]:48828) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hT0Oo-0003ZM-G6 for qemu-devel@nongnu.org; Tue, 21 May 2019 04:45:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hT0On-0004GP-MF for qemu-devel@nongnu.org; Tue, 21 May 2019 04:45:30 -0400 Received: from relay.sw.ru ([185.231.240.75]:60610) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hT0Ol-0004AL-J4; Tue, 21 May 2019 04:45:27 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.91) (envelope-from ) id 1hT0Oh-0003ut-9k; Tue, 21 May 2019 11:45:23 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org, qemu-devel@nongnu.org Date: Tue, 21 May 2019 11:45:19 +0300 Message-Id: <20190521084522.15050-1-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.18.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 185.231.240.75 Subject: [Qemu-devel] [RFC PATCH 0/3] block: qiov_offset parameter for io X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, fam@euphon.net, vsementsov@virtuozzo.com, mreitz@redhat.com, stefanha@redhat.com, den@openvz.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Hi all! Here is idea of adding qiov_offset parameter to io path, to avoid a lot of places with same pattern of creating local_qiov or hd_qiov variables. Here is only read path for qcow2, if we like it, I'll make v2 with both read and write paths for qcow2. Vladimir Sementsov-Ogievskiy (3): block/io: introduce bdrv_co_preadv_part block/qcow2: refactor qcow2_co_preadv to use buffer-based io block/qcow2: implement .bdrv_co_preadv_part include/block/block_int.h | 6 +++ block/io.c | 87 ++++++++++++++++++++++++++------------- block/qcow2.c | 67 +++++++++++++++--------------- 3 files changed, 97 insertions(+), 63 deletions(-) -- 2.18.0