From patchwork Fri Aug 16 23:12:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Snow X-Patchwork-Id: 11098351 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6F63B14F7 for ; Fri, 16 Aug 2019 23:21:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5B35D289DC for ; Fri, 16 Aug 2019 23:21:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4901828A99; Fri, 16 Aug 2019 23:21:33 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C9D89289DC for ; Fri, 16 Aug 2019 23:21:32 +0000 (UTC) Received: from localhost ([::1]:33162 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hylXH-0007ps-DA for patchwork-qemu-devel@patchwork.kernel.org; Fri, 16 Aug 2019 19:21:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46127) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1hylPa-0006EP-EI for qemu-devel@nongnu.org; Fri, 16 Aug 2019 19:13:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hylPY-0005jV-Qr for qemu-devel@nongnu.org; Fri, 16 Aug 2019 19:13:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43704) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hylPT-0005bz-Eq; Fri, 16 Aug 2019 19:13:29 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 727F7C049E1A; Fri, 16 Aug 2019 23:13:24 +0000 (UTC) Received: from probe.bos.redhat.com (dhcp-17-187.bos.redhat.com [10.18.17.187]) by smtp.corp.redhat.com (Postfix) with ESMTP id BFA5719C6A; Fri, 16 Aug 2019 23:13:23 +0000 (UTC) From: John Snow To: qemu-devel@nongnu.org Date: Fri, 16 Aug 2019 19:12:44 -0400 Message-Id: <20190816231318.8650-3-jsnow@redhat.com> In-Reply-To: <20190816231318.8650-1-jsnow@redhat.com> References: <20190816231318.8650-1-jsnow@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Fri, 16 Aug 2019 23:13:24 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 02/36] drive-backup: create do_backup_common 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: peter.maydell@linaro.org, jsnow@redhat.com, qemu-stable@nongnu.org, qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Create a common core that comprises the actual meat of what the backup API boundary needs to do, and then switch drive-backup to use it. Signed-off-by: John Snow Reviewed-by: Max Reitz Message-id: 20190709232550.10724-3-jsnow@redhat.com Signed-off-by: John Snow --- blockdev.c | 122 +++++++++++++++++++++++++++++------------------------ 1 file changed, 67 insertions(+), 55 deletions(-) diff --git a/blockdev.c b/blockdev.c index 95cdd5a5cb0..d822b19b4b0 100644 --- a/blockdev.c +++ b/blockdev.c @@ -3427,6 +3427,70 @@ out: aio_context_release(aio_context); } +/* Common QMP interface for drive-backup and blockdev-backup */ +static BlockJob *do_backup_common(BackupCommon *backup, + BlockDriverState *bs, + BlockDriverState *target_bs, + AioContext *aio_context, + JobTxn *txn, Error **errp) +{ + BlockJob *job = NULL; + BdrvDirtyBitmap *bmap = NULL; + int job_flags = JOB_DEFAULT; + int ret; + + if (!backup->has_speed) { + backup->speed = 0; + } + if (!backup->has_on_source_error) { + backup->on_source_error = BLOCKDEV_ON_ERROR_REPORT; + } + if (!backup->has_on_target_error) { + backup->on_target_error = BLOCKDEV_ON_ERROR_REPORT; + } + if (!backup->has_job_id) { + backup->job_id = NULL; + } + if (!backup->has_auto_finalize) { + backup->auto_finalize = true; + } + if (!backup->has_auto_dismiss) { + backup->auto_dismiss = true; + } + if (!backup->has_compress) { + backup->compress = false; + } + + ret = bdrv_try_set_aio_context(target_bs, aio_context, errp); + if (ret < 0) { + return NULL; + } + + if (backup->has_bitmap) { + bmap = bdrv_find_dirty_bitmap(bs, backup->bitmap); + if (!bmap) { + error_setg(errp, "Bitmap '%s' could not be found", backup->bitmap); + return NULL; + } + if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_DEFAULT, errp)) { + return NULL; + } + } + + if (!backup->auto_finalize) { + job_flags |= JOB_MANUAL_FINALIZE; + } + if (!backup->auto_dismiss) { + job_flags |= JOB_MANUAL_DISMISS; + } + + job = backup_job_create(backup->job_id, bs, target_bs, backup->speed, + backup->sync, bmap, backup->compress, + backup->on_source_error, backup->on_target_error, + job_flags, NULL, NULL, txn, errp); + return job; +} + static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn, Error **errp) { @@ -3434,39 +3498,16 @@ static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn, BlockDriverState *target_bs; BlockDriverState *source = NULL; BlockJob *job = NULL; - BdrvDirtyBitmap *bmap = NULL; AioContext *aio_context; QDict *options = NULL; Error *local_err = NULL; - int flags, job_flags = JOB_DEFAULT; + int flags; int64_t size; bool set_backing_hd = false; - int ret; - if (!backup->has_speed) { - backup->speed = 0; - } - if (!backup->has_on_source_error) { - backup->on_source_error = BLOCKDEV_ON_ERROR_REPORT; - } - if (!backup->has_on_target_error) { - backup->on_target_error = BLOCKDEV_ON_ERROR_REPORT; - } if (!backup->has_mode) { backup->mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS; } - if (!backup->has_job_id) { - backup->job_id = NULL; - } - if (!backup->has_auto_finalize) { - backup->auto_finalize = true; - } - if (!backup->has_auto_dismiss) { - backup->auto_dismiss = true; - } - if (!backup->has_compress) { - backup->compress = false; - } bs = bdrv_lookup_bs(backup->device, backup->device, errp); if (!bs) { @@ -3543,12 +3584,6 @@ static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn, goto out; } - ret = bdrv_try_set_aio_context(target_bs, aio_context, errp); - if (ret < 0) { - bdrv_unref(target_bs); - goto out; - } - if (set_backing_hd) { bdrv_set_backing_hd(target_bs, source, &local_err); if (local_err) { @@ -3556,31 +3591,8 @@ static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn, } } - if (backup->has_bitmap) { - bmap = bdrv_find_dirty_bitmap(bs, backup->bitmap); - if (!bmap) { - error_setg(errp, "Bitmap '%s' could not be found", backup->bitmap); - goto unref; - } - if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_DEFAULT, errp)) { - goto unref; - } - } - if (!backup->auto_finalize) { - job_flags |= JOB_MANUAL_FINALIZE; - } - if (!backup->auto_dismiss) { - job_flags |= JOB_MANUAL_DISMISS; - } - - job = backup_job_create(backup->job_id, bs, target_bs, backup->speed, - backup->sync, bmap, backup->compress, - backup->on_source_error, backup->on_target_error, - job_flags, NULL, NULL, txn, &local_err); - if (local_err != NULL) { - error_propagate(errp, local_err); - goto unref; - } + job = do_backup_common(qapi_DriveBackup_base(backup), + bs, target_bs, aio_context, txn, errp); unref: bdrv_unref(target_bs);