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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 742B7C77B7D for ; Wed, 10 May 2023 12:26:02 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pwipv-0002sE-3D; Wed, 10 May 2023 08:22:27 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pwipO-0002C2-V3 for qemu-devel@nongnu.org; Wed, 10 May 2023 08:21:55 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pwipG-0007eW-Tm for qemu-devel@nongnu.org; Wed, 10 May 2023 08:21:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1683721306; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=n6NgxL3Ny4N+o7FNz1jS3NWEGhSnpXMSIMsKhoPZ220=; b=LkHSG+ri4tb4Uzf6gJSQ/DKbQ2ZMB18//ilofv1yIIyR7Toq0mwHu11wtJKBMRB1FDzT2H 2hu3Cg5Hx05RmvOA6wEDl6Hf7qkpIQL6fntfBYToexSw/xyCzMppRVQbkA/onhfALIAEyG fSfLj51WN87tXjVJQeeADXTChUYy2Ok= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-76-Ok9pn10NPYWm0I4AGsAjXQ-1; Wed, 10 May 2023 08:21:44 -0400 X-MC-Unique: Ok9pn10NPYWm0I4AGsAjXQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7CD27101A55C; Wed, 10 May 2023 12:21:44 +0000 (UTC) Received: from merkur.fritz.box (unknown [10.39.194.148]) by smtp.corp.redhat.com (Postfix) with ESMTP id C162D47CD0; Wed, 10 May 2023 12:21:43 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, richard.henderson@linaro.org, qemu-devel@nongnu.org Subject: [PULL 08/28] block: Consistently call bdrv_activate() outside coroutine Date: Wed, 10 May 2023 14:20:51 +0200 Message-Id: <20230510122111.46566-9-kwolf@redhat.com> In-Reply-To: <20230510122111.46566-1-kwolf@redhat.com> References: <20230510122111.46566-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Received-SPF: pass client-ip=170.10.133.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Migration code can call bdrv_activate() in coroutine context, whereas other callers call it outside of coroutines. As it calls other code that is not supposed to run in coroutines, standardise on running outside of coroutines. This adds a no_co_wrapper to switch to the main loop before calling bdrv_activate(). Cc: qemu-stable@nongnu.org Signed-off-by: Kevin Wolf Reviewed-by: Eric Blake Reviewed-by: Stefan Hajnoczi Message-Id: <20230504115750.54437-3-kwolf@redhat.com> Signed-off-by: Kevin Wolf --- include/block/block-global-state.h | 6 +++++- block/block-backend.c | 10 +++++++++- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/include/block/block-global-state.h b/include/block/block-global-state.h index 399200a9a3..2c312cc774 100644 --- a/include/block/block-global-state.h +++ b/include/block/block-global-state.h @@ -166,7 +166,11 @@ int bdrv_amend_options(BlockDriverState *bs_new, QemuOpts *opts, BlockDriverState *check_to_replace_node(BlockDriverState *parent_bs, const char *node_name, Error **errp); -int bdrv_activate(BlockDriverState *bs, Error **errp); +int no_coroutine_fn bdrv_activate(BlockDriverState *bs, Error **errp); + +int coroutine_fn no_co_wrapper +bdrv_co_activate(BlockDriverState *bs, Error **errp); + void bdrv_activate_all(Error **errp); int bdrv_inactivate_all(void); diff --git a/block/block-backend.c b/block/block-backend.c index fc530ded6a..e37d55d3e9 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -2024,7 +2024,15 @@ void blk_activate(BlockBackend *blk, Error **errp) return; } - bdrv_activate(bs, errp); + /* + * Migration code can call this function in coroutine context, so leave + * coroutine context if necessary. + */ + if (qemu_in_coroutine()) { + bdrv_co_activate(bs, errp); + } else { + bdrv_activate(bs, errp); + } } bool coroutine_fn blk_co_is_inserted(BlockBackend *blk) -- 2.40.1