From patchwork Tue Oct 12 08:48:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emanuele Giuseppe Esposito X-Patchwork-Id: 1539672 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=G96fGngo; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 bilbo.ozlabs.org (Postfix) with ESMTPS id 4HT93f2b9Sz9sR4 for ; Tue, 12 Oct 2021 20:14:54 +1100 (AEDT) Received: from localhost ([::1]:50732 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1maDs3-000779-Ur for incoming@patchwork.ozlabs.org; Tue, 12 Oct 2021 05:14:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33594) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maDUi-0006L3-AR for qemu-devel@nongnu.org; Tue, 12 Oct 2021 04:50:44 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:60983) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maDUa-00030v-Rz for qemu-devel@nongnu.org; Tue, 12 Oct 2021 04:50:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634028635; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+LjO3Z3lpeZPbCuvAFswOO9dYLKScSVlpOhmcwat98U=; b=G96fGngoUPqpMf2/Toj9N2KwcgwKHj6006kcCOqBGZXv0mrYHXLZNjHzcPVa9jIwuGaUHk cNP8drii6INpm1l2lxzR22Mgan2v9yoN+DEvZy6cXW7zGWnAz7QIl9Ik05+aU4ThZ+Cc5b +uv7kQb3kImRZUMn/EZ7kuihYDnmsW0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-517-sdjswsVqOsmrATjCJKqAOA-1; Tue, 12 Oct 2021 04:50:33 -0400 X-MC-Unique: sdjswsVqOsmrATjCJKqAOA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B4CC3800FF0; Tue, 12 Oct 2021 08:50:32 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 86C5F5C232; Tue, 12 Oct 2021 08:50:31 +0000 (UTC) From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [PATCH v3 18/25] block/coroutines: I/O API Date: Tue, 12 Oct 2021 04:48:59 -0400 Message-Id: <20211012084906.2060507-19-eesposit@redhat.com> In-Reply-To: <20211012084906.2060507-1-eesposit@redhat.com> References: <20211012084906.2060507-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eesposit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=eesposit@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.049, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, T_SPF_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Kevin Wolf , Fam Zheng , Vladimir Sementsov-Ogievskiy , =?utf-8?q?Daniel_P?= =?utf-8?q?=2E_Berrang=C3=A9?= , Eduardo Habkost , Juan Quintela , qemu-devel@nongnu.org, John Snow , Emanuele Giuseppe Esposito , Richard Henderson , Markus Armbruster , "Dr. David Alan Gilbert" , Hanna Reitz , Stefan Hajnoczi , Paolo Bonzini , Eric Blake Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" block coroutines functions run in different aiocontext, and are not protected by the BQL. Therefore are I/O. Signed-off-by: Emanuele Giuseppe Esposito Reviewed-by: Paolo Bonzini Reviewed-by: Stefan Hajnoczi --- block/coroutines.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/block/coroutines.h b/block/coroutines.h index 514d169d23..079de537a0 100644 --- a/block/coroutines.h +++ b/block/coroutines.h @@ -27,6 +27,13 @@ #include "block/block_int.h" +/* + * I/O API functions. These functions are thread-safe. + * + * See include/block/block-io.h for more information about + * the I/O API. + */ + int coroutine_fn bdrv_co_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix); int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp);