From patchwork Wed Mar 16 18:54:41 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Reitz X-Patchwork-Id: 8603441 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 34B949F294 for ; Wed, 16 Mar 2016 19:03:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 89AED2026C for ; Wed, 16 Mar 2016 19:03:55 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C593720219 for ; Wed, 16 Mar 2016 19:03:54 +0000 (UTC) Received: from localhost ([::1]:58316 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agGja-0005sb-6P for patchwork-qemu-devel@patchwork.kernel.org; Wed, 16 Mar 2016 15:03:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37310) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agGbL-0001Jy-Nc for qemu-devel@nongnu.org; Wed, 16 Mar 2016 14:55:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1agGbK-0005fE-L7 for qemu-devel@nongnu.org; Wed, 16 Mar 2016 14:55:23 -0400 Received: from mx1.redhat.com ([209.132.183.28]:41972) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1agGbI-0005eX-JG; Wed, 16 Mar 2016 14:55:20 -0400 Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) by mx1.redhat.com (Postfix) with ESMTPS id 277C346267; Wed, 16 Mar 2016 18:55:20 +0000 (UTC) Received: from localhost (ovpn-116-135.ams2.redhat.com [10.36.116.135]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u2GItI8j018217 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 16 Mar 2016 14:55:19 -0400 From: Max Reitz To: qemu-block@nongnu.org Date: Wed, 16 Mar 2016 19:54:41 +0100 Message-Id: <1458154485-32536-14-git-send-email-mreitz@redhat.com> In-Reply-To: <1458154485-32536-1-git-send-email-mreitz@redhat.com> References: <1458154485-32536-1-git-send-email-mreitz@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: Kevin Wolf , Markus Armbruster , qemu-devel@nongnu.org, Stefan Hajnoczi , Max Reitz Subject: [Qemu-devel] [PATCH v4 13/17] block: Add bdrv_next_monitor_owned() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add a function for iterating over all monitor-owned BlockDriverStates so the generic block layer can do so. Signed-off-by: Max Reitz --- blockdev.c | 7 +++++++ include/block/block.h | 1 + stubs/Makefile.objs | 1 + stubs/bdrv-next-monitor-owned.c | 8 ++++++++ 4 files changed, 17 insertions(+) create mode 100644 stubs/bdrv-next-monitor-owned.c diff --git a/blockdev.c b/blockdev.c index b6d2444..a5df7e7 100644 --- a/blockdev.c +++ b/blockdev.c @@ -723,6 +723,13 @@ void blockdev_close_all_bdrv_states(void) } } +/* Iterates over the list of monitor-owned BlockDriverStates */ +BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs) +{ + return bs ? QTAILQ_NEXT(bs, monitor_list) + : QTAILQ_FIRST(&monitor_bdrv_states); +} + static void qemu_opt_rename(QemuOpts *opts, const char *from, const char *to, Error **errp) { diff --git a/include/block/block.h b/include/block/block.h index ea5be0f..09272c3 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -412,6 +412,7 @@ BlockDriverState *bdrv_lookup_bs(const char *device, bool bdrv_chain_contains(BlockDriverState *top, BlockDriverState *base); BlockDriverState *bdrv_next_node(BlockDriverState *bs); BlockDriverState *bdrv_next(BlockDriverState *bs); +BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs); int bdrv_is_encrypted(BlockDriverState *bs); int bdrv_key_required(BlockDriverState *bs); int bdrv_set_key(BlockDriverState *bs, const char *key); diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs index 9d9f1d0..b6d1e65 100644 --- a/stubs/Makefile.objs +++ b/stubs/Makefile.objs @@ -1,4 +1,5 @@ stub-obj-y += arch-query-cpu-def.o +stub-obj-y += bdrv-next-monitor-owned.o stub-obj-y += blk-commit-all.o stub-obj-y += blockdev-close-all-bdrv-states.o stub-obj-y += clock-warp.o diff --git a/stubs/bdrv-next-monitor-owned.c b/stubs/bdrv-next-monitor-owned.c new file mode 100644 index 0000000..2acf6c3 --- /dev/null +++ b/stubs/bdrv-next-monitor-owned.c @@ -0,0 +1,8 @@ +#include "qemu/osdep.h" +#include "qemu-common.h" +#include "block/block.h" + +BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs) +{ + return NULL; +}