From patchwork Tue Mar 11 13:26:11 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Hajnoczi X-Patchwork-Id: 14011920 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 74607C282EC for ; Tue, 11 Mar 2025 13:32:01 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1trzeS-0003e4-6I; Tue, 11 Mar 2025 09:28:08 -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 1trzdS-0002Ol-D5 for qemu-devel@nongnu.org; Tue, 11 Mar 2025 09:27:07 -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 1trzdQ-0005GL-F0 for qemu-devel@nongnu.org; Tue, 11 Mar 2025 09:27:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1741699622; 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=LEAblqs+/QeL64NIpBD9nW8zWVA/2GdqUlR+17Zc9i4=; b=JN5x/aXBDeZnnNZDqokQKO/GPlIzDEBjkB97K83AojercHqW9HAloMbMSe/hk9Y9eZkCPT freYXm8bXglYeDp/MHw/M5nFFsAKu8J4d87gqFlk+Pw9+L1pdjFPz2eCgz54szj9FewHA1 VorngtR1tOO3BbioJzRYdtkXdCp7e+U= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-552-kGSmP0wyMMmia9dXoFBmqA-1; Tue, 11 Mar 2025 09:27:01 -0400 X-MC-Unique: kGSmP0wyMMmia9dXoFBmqA-1 X-Mimecast-MFC-AGG-ID: kGSmP0wyMMmia9dXoFBmqA_1741699620 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id E061C18001E2; Tue, 11 Mar 2025 13:26:59 +0000 (UTC) Received: from localhost (unknown [10.2.16.118]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 18788195608F; Tue, 11 Mar 2025 13:26:56 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Cc: John Snow , Paolo Bonzini , "Michael S. Tsirkin" , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Stefan Hajnoczi , Kevin Wolf , pkrempa@redhat.com, Fam Zheng , , David Hildenbrand , Peter Xu , Hanna Reitz Subject: [PATCH v4 08/13] virtio-blk: extract cleanup_iothread_vq_mapping() function Date: Tue, 11 Mar 2025 21:26:11 +0800 Message-ID: <20250311132616.1049687-9-stefanha@redhat.com> In-Reply-To: <20250311132616.1049687-1-stefanha@redhat.com> References: <20250311132616.1049687-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.133.124; envelope-from=stefanha@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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=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: 2.1.29 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 This is the cleanup function that must be called after apply_iothread_vq_mapping() succeeds. virtio-scsi will need this function too, so extract it. Signed-off-by: Stefan Hajnoczi Reviewed-by: Kevin Wolf --- hw/block/virtio-blk.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c index 5135b4d8f1..21b1b768ed 100644 --- a/hw/block/virtio-blk.c +++ b/hw/block/virtio-blk.c @@ -1495,6 +1495,9 @@ validate_iothread_vq_mapping_list(IOThreadVirtQueueMappingList *list, * Fill in the AioContext for each virtqueue in the @vq_aio_context array given * the iothread-vq-mapping parameter in @iothread_vq_mapping_list. * + * cleanup_iothread_vq_mapping() must be called to free IOThread object + * references after this function returns success. + * * Returns: %true on success, %false on failure. **/ static bool apply_iothread_vq_mapping( @@ -1545,6 +1548,23 @@ static bool apply_iothread_vq_mapping( return true; } +/** + * cleanup_iothread_vq_mapping: + * @list: The mapping of virtqueues to IOThreads. + * + * Release IOThread object references that were acquired by + * apply_iothread_vq_mapping(). + */ +static void cleanup_iothread_vq_mapping(IOThreadVirtQueueMappingList *list) +{ + IOThreadVirtQueueMappingList *node; + + for (node = list; node; node = node->next) { + IOThread *iothread = iothread_by_id(node->value->iothread); + object_unref(OBJECT(iothread)); + } +} + /* Context: BQL held */ static bool virtio_blk_vq_aio_context_init(VirtIOBlock *s, Error **errp) { @@ -1611,12 +1631,7 @@ static void virtio_blk_vq_aio_context_cleanup(VirtIOBlock *s) assert(!s->ioeventfd_started); if (conf->iothread_vq_mapping_list) { - IOThreadVirtQueueMappingList *node; - - for (node = conf->iothread_vq_mapping_list; node; node = node->next) { - IOThread *iothread = iothread_by_id(node->value->iothread); - object_unref(OBJECT(iothread)); - } + cleanup_iothread_vq_mapping(conf->iothread_vq_mapping_list); } if (conf->iothread) {