From patchwork Wed Jul 19 20:27:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Blake X-Patchwork-Id: 13319493 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 70274C001B0 for ; Wed, 19 Jul 2023 20:38:13 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qMDv6-0005un-0e; Wed, 19 Jul 2023 16:37:12 -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 1qMDv3-0005tg-W9 for qemu-devel@nongnu.org; Wed, 19 Jul 2023 16:37:10 -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 1qMDv1-0001mj-WD for qemu-devel@nongnu.org; Wed, 19 Jul 2023 16:37:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689799027; 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=W7YLu/P/YgajFgHCKNUtyzQmvJdgtGqjZP1FgSzTZDg=; b=CFaofVJaEu06HBs9cklbR07Kue4liNL1OhsYcZVi3eBPY7VhCFGh7J+NJ80Ya5onVMhtxW c3JN1pSzTD+7n0JkcTfu2+bHTTg5SXxYgxo5xuhOTYHCgNqnWdZKY776EWeyl9sqQd5NBI atojCtHP4PmjmFbw/jnTLkiI0G8V6UA= 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-466-WIbhMaecOK2MN_p9jeuGiQ-1; Wed, 19 Jul 2023 16:37:03 -0400 X-MC-Unique: WIbhMaecOK2MN_p9jeuGiQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 065EE185A795; Wed, 19 Jul 2023 20:37:03 +0000 (UTC) Received: from green.redhat.com (unknown [10.2.16.192]) by smtp.corp.redhat.com (Postfix) with ESMTP id 62C964CD0FB; Wed, 19 Jul 2023 20:37:02 +0000 (UTC) From: Eric Blake To: qemu-devel@nongnu.org Cc: "Denis V. Lunev" , Vladimir Sementsov-Ogievskiy , qemu-stable@nongnu.org, qemu-block@nongnu.org (open list:Network Block Dev...) Subject: [PULL 01/14] qemu-nbd: pass structure into nbd_client_thread instead of plain char* Date: Wed, 19 Jul 2023 15:27:38 -0500 Message-ID: <20230719202736.2675295-17-eblake@redhat.com> In-Reply-To: <20230719202736.2675295-16-eblake@redhat.com> References: <20230719202736.2675295-16-eblake@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.133.124; envelope-from=eblake@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_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable 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 From: "Denis V. Lunev" We are going to pass additional flag inside next patch. Signed-off-by: Denis V. Lunev CC: Eric Blake CC: Vladimir Sementsov-Ogievskiy CC: Message-ID: <20230717145544.194786-2-den@openvz.org> Reviewed-by: Eric Blake Signed-off-by: Eric Blake --- qemu-nbd.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/qemu-nbd.c b/qemu-nbd.c index 4276163564b..77f98c736bb 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -272,9 +272,13 @@ static void *show_parts(void *arg) return NULL; } +struct NbdClientOpts { + char *device; +}; + static void *nbd_client_thread(void *arg) { - char *device = arg; + struct NbdClientOpts *opts = arg; NBDExportInfo info = { .request_sizes = false, .name = g_strdup("") }; QIOChannelSocket *sioc; int fd = -1; @@ -298,10 +302,10 @@ static void *nbd_client_thread(void *arg) goto out; } - fd = open(device, O_RDWR); + fd = open(opts->device, O_RDWR); if (fd < 0) { /* Linux-only, we can use %m in printf. */ - error_report("Failed to open %s: %m", device); + error_report("Failed to open %s: %m", opts->device); goto out; } @@ -311,11 +315,11 @@ static void *nbd_client_thread(void *arg) } /* update partition table */ - pthread_create(&show_parts_thread, NULL, show_parts, device); + pthread_create(&show_parts_thread, NULL, show_parts, opts->device); if (verbose) { fprintf(stderr, "NBD device %s is now connected to %s\n", - device, srcpath); + opts->device, srcpath); } else { /* Close stderr so that the qemu-nbd process exits. */ dup2(STDOUT_FILENO, STDERR_FILENO); @@ -1125,8 +1129,11 @@ int main(int argc, char **argv) if (device) { #if HAVE_NBD_DEVICE int ret; + struct NbdClientOpts opts = { + .device = device, + }; - ret = pthread_create(&client_thread, NULL, nbd_client_thread, device); + ret = pthread_create(&client_thread, NULL, nbd_client_thread, &opts); if (ret != 0) { error_report("Failed to create client thread: %s", strerror(ret)); exit(EXIT_FAILURE);