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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 1A5D5C47404 for ; Fri, 11 Oct 2019 09:10:52 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E2FF42084C for ; Fri, 11 Oct 2019 09:10:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E2FF42084C 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 ([::1]:47624 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIqwk-0002py-RK for qemu-devel@archiver.kernel.org; Fri, 11 Oct 2019 05:10:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49514) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIqtM-0005wq-8V for qemu-devel@nongnu.org; Fri, 11 Oct 2019 05:07:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iIqtL-0004BM-7g for qemu-devel@nongnu.org; Fri, 11 Oct 2019 05:07:20 -0400 Received: from relay.sw.ru ([185.231.240.75]:60322) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iIqtH-00047A-MT; Fri, 11 Oct 2019 05:07:15 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.2) (envelope-from ) id 1iIqtE-0000XM-Ke; Fri, 11 Oct 2019 12:07:12 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-block@nongnu.org Subject: [PATCH v2 3/5] block/block-backend: add blk_co_pwritev_part Date: Fri, 11 Oct 2019 12:07:09 +0300 Message-Id: <20191011090711.19940-4-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191011090711.19940-1-vsementsov@virtuozzo.com> References: <20191011090711.19940-1-vsementsov@virtuozzo.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, kwolf@redhat.com, vsementsov@virtuozzo.com, qemu-devel@nongnu.org, mreitz@redhat.com, den@openvz.org, jsnow@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add blk write function with qiov_offset parameter. It's needed for the following commit. Signed-off-by: Vladimir Sementsov-Ogievskiy Reviewed-by: Max Reitz --- include/sysemu/block-backend.h | 4 ++++ block/block-backend.c | 17 +++++++++++++---- 2 files changed, 17 insertions(+), 4 deletions(-) diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h index 368d53af77..73f2cef7fe 100644 --- a/include/sysemu/block-backend.h +++ b/include/sysemu/block-backend.h @@ -121,6 +121,10 @@ void blk_set_dev_ops(BlockBackend *blk, const BlockDevOps *ops, void *opaque); int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags); +int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset, + unsigned int bytes, + QEMUIOVector *qiov, size_t qiov_offset, + BdrvRequestFlags flags); int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, unsigned int bytes, QEMUIOVector *qiov, BdrvRequestFlags flags); diff --git a/block/block-backend.c b/block/block-backend.c index 1c605d5444..b3d00478af 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1176,9 +1176,10 @@ int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset, return ret; } -int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, - unsigned int bytes, QEMUIOVector *qiov, - BdrvRequestFlags flags) +int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset, + unsigned int bytes, + QEMUIOVector *qiov, size_t qiov_offset, + BdrvRequestFlags flags) { int ret; BlockDriverState *bs; @@ -1205,11 +1206,19 @@ int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, flags |= BDRV_REQ_FUA; } - ret = bdrv_co_pwritev(blk->root, offset, bytes, qiov, flags); + ret = bdrv_co_pwritev_part(blk->root, offset, bytes, qiov, qiov_offset, + flags); bdrv_dec_in_flight(bs); return ret; } +int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset, + unsigned int bytes, QEMUIOVector *qiov, + BdrvRequestFlags flags) +{ + return blk_co_pwritev_part(blk, offset, bytes, qiov, 0, flags); +} + typedef struct BlkRwCo { BlockBackend *blk; int64_t offset; -- 2.21.0