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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A22BC433F5 for ; Tue, 12 Oct 2021 09:10:03 +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 E458660F3A for ; Tue, 12 Oct 2021 09:10:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E458660F3A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:43894 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1maDnO-0002JA-0I for qemu-devel@archiver.kernel.org; Tue, 12 Oct 2021 05:10:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33454) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maDUb-0006H3-7e for qemu-devel@nongnu.org; Tue, 12 Oct 2021 04:50:40 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:53521) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1maDUU-0002xZ-Uw for qemu-devel@nongnu.org; Tue, 12 Oct 2021 04:50:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634028629; 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=7XmWWfAkLFE2tUo6uck21SNDay0SRayp0iCtwrY24bk=; b=RY4uaiaVEywlOXqBkXdSFvqPMLeMysUCvCq+u6fHJLd/tppa1DwimTSo/DBoxeNotwPnE2 q5Mhtm/ssyAFprIqp3Xe+MC/hZ+CpUGjmzbKGrDRoNlcne58A0kD1hBog5bSYWWxpopR7S chNMXQvWTAqs6Jd3gpOWjH86agKfTcU= 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-415-PkMVvzolNOWgBdcXyjQwKw-1; Tue, 12 Oct 2021 04:50:28 -0400 X-MC-Unique: PkMVvzolNOWgBdcXyjQwKw-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 88F078018D9; Tue, 12 Oct 2021 08:50:27 +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 5A0E55C1B4; Tue, 12 Oct 2021 08:50:26 +0000 (UTC) From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [PATCH v3 14/25] include/systemu/blockdev.h: global state API Date: Tue, 12 Oct 2021 04:48:55 -0400 Message-Id: <20211012084906.2060507-15-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 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" 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: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 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, SPF_PASS=-0.001 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=20P=2E=20Berrang=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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" blockdev functions run always under the BQL lock. Signed-off-by: Emanuele Giuseppe Esposito --- include/sysemu/blockdev.h | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/include/sysemu/blockdev.h b/include/sysemu/blockdev.h index 960b54d320..cc9dfb5181 100644 --- a/include/sysemu/blockdev.h +++ b/include/sysemu/blockdev.h @@ -40,7 +40,13 @@ struct DriveInfo { QTAILQ_ENTRY(DriveInfo) next; }; -DriveInfo *blk_legacy_dinfo(BlockBackend *blk); +/* + * Global state (GS) API. These functions run under the BQL lock. + * + * See include/block/block-global-state.h for more information about + * the GS API. + */ + DriveInfo *blk_set_legacy_dinfo(BlockBackend *blk, DriveInfo *dinfo); BlockBackend *blk_by_legacy_dinfo(DriveInfo *dinfo); @@ -50,10 +56,14 @@ DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit); void drive_check_orphaned(void); DriveInfo *drive_get_by_index(BlockInterfaceType type, int index); int drive_get_max_bus(BlockInterfaceType type); -int drive_get_max_devs(BlockInterfaceType type); DriveInfo *drive_get_next(BlockInterfaceType type); DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type, Error **errp); +/* Common functions that are neither I/O nor Global State */ + +DriveInfo *blk_legacy_dinfo(BlockBackend *blk); +int drive_get_max_devs(BlockInterfaceType type); + #endif -- 2.27.0