From patchwork Fri Apr 29 22:45:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Elliott Mitchell X-Patchwork-Id: 12833020 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 E14D4C433EF for ; Sat, 30 Apr 2022 02:42:11 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.317947.537500 (Exim 4.92) (envelope-from ) id 1nkd3a-0004H0-4k; Sat, 30 Apr 2022 02:42:02 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 317947.537500; Sat, 30 Apr 2022 02:42:02 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nkd3a-0004Gt-1B; Sat, 30 Apr 2022 02:42:02 +0000 Received: by outflank-mailman (input) for mailman id 317947; Sat, 30 Apr 2022 02:42:00 +0000 Received: from se1-gles-sth1-in.inumbo.com ([159.253.27.254] helo=se1-gles-sth1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nkd3Y-0004Ge-LJ for xen-devel@lists.xenproject.org; Sat, 30 Apr 2022 02:42:00 +0000 Received: from mailhost.m5p.com (mailhost.m5p.com [74.104.188.4]) by se1-gles-sth1.inumbo.com (Halon) with ESMTPS id 1a890cc2-c82f-11ec-a405-831a346695d4; Sat, 30 Apr 2022 04:41:58 +0200 (CEST) Received: from m5p.com (mailhost.m5p.com [IPv6:2001:470:1f07:15ff:0:0:0:f7]) by mailhost.m5p.com (8.16.1/8.15.2) with ESMTPS id 23U2fm87061622 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO); Fri, 29 Apr 2022 22:41:54 -0400 (EDT) (envelope-from ehem@m5p.com) Received: (from ehem@localhost) by m5p.com (8.16.1/8.15.2/Submit) id 23U2fmBJ061621; Fri, 29 Apr 2022 19:41:48 -0700 (PDT) (envelope-from ehem) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 1a890cc2-c82f-11ec-a405-831a346695d4 Message-Id: In-Reply-To: References: From: Elliott Mitchell Cc: Wei Liu Cc: Anthony PERARD Date: Fri, 29 Apr 2022 15:45:25 -0700 Subject: [PATCH v2 2/3] tools/xl: Use sparse init for dom_info, remove duplicate vars To: xen-devel@lists.xenproject.org Rather than having shadow variables for every element of dom_info, it is better to properly initialize dom_info at the start. This also removes the misleading memset() in the middle of main_create(). Remove the dryrun element of domain_create as that has been displaced by the global "dryrun_only" variable. Signed-off-by: Elliott Mitchell Reviewed-by: Anthony PERARD --- v2: This was added due to the confusing situation with dom_info. --- tools/xl/xl.h | 1 - tools/xl/xl_vmcontrol.c | 76 ++++++++++++++++++++--------------------- 2 files changed, 37 insertions(+), 40 deletions(-) diff --git a/tools/xl/xl.h b/tools/xl/xl.h index c5c4bedbdd..72538d6a81 100644 --- a/tools/xl/xl.h +++ b/tools/xl/xl.h @@ -34,7 +34,6 @@ struct domain_create { int daemonize; int monitor; /* handle guest reboots etc */ int paused; - int dryrun; int quiet; int vnc; int vncautopass; diff --git a/tools/xl/xl_vmcontrol.c b/tools/xl/xl_vmcontrol.c index d081c6c290..4bf041fb01 100644 --- a/tools/xl/xl_vmcontrol.c +++ b/tools/xl/xl_vmcontrol.c @@ -854,8 +854,8 @@ int create_domain(struct domain_create *dom_info) } } - if (debug || dom_info->dryrun) { - FILE *cfg_print_fh = (debug && !dom_info->dryrun) ? stderr : stdout; + if (debug || dryrun_only) { + FILE *cfg_print_fh = (debug && !dryrun_only) ? stderr : stdout; if (default_output_format == OUTPUT_FORMAT_SXP) { printf_info_sexp(-1, &d_config, cfg_print_fh); } else { @@ -873,7 +873,7 @@ int create_domain(struct domain_create *dom_info) ret = 0; - if (dom_info->dryrun) + if (dryrun_only) goto out; start: @@ -1164,10 +1164,26 @@ out: int main_create(int argc, char **argv) { - const char *filename = NULL; - struct domain_create dom_info; - int paused = 0, debug = 0, daemonize = 1, console_autoconnect = 0, - quiet = 0, monitor = 1, vnc = 0, vncautopass = 0, ignore_masks = 0; + struct domain_create dom_info = { + /* Command-line options */ + .config_file = NULL, + .console_autoconnect = 0, + .debug = 0, + .daemonize = 1, + .ignore_global_affinity_masks = 0, + .monitor = 1, + .paused = 0, + .quiet = 0, + .vnc = 0, + .vncautopass = 0, + + /* Extra configuration file settings */ + .extra_config = NULL, + + /* FDs, initialize to invalid */ + .migrate_fd = -1, + .send_back_fd = -1, + }; int opt, rc; static const struct option opts[] = { {"defconfig", 1, 0, 'f'}, @@ -1179,58 +1195,54 @@ int main_create(int argc, char **argv) COMMON_LONG_OPTS }; - dom_info.extra_config = NULL; - if (argv[1] && argv[1][0] != '-' && !strchr(argv[1], '=')) { - filename = argv[1]; + dom_info.config_file = argv[1]; argc--; argv++; } SWITCH_FOREACH_OPT(opt, "AFVcdef:inpq", opts, "create", 0) { case 'A': - vnc = vncautopass = 1; + dom_info.vnc = dom_info.vncautopass = 1; break; case 'F': - daemonize = 0; + dom_info.daemonize = 0; break; case 'V': - vnc = 1; + dom_info.vnc = 1; break; case 'c': - console_autoconnect = 1; + dom_info.console_autoconnect = 1; break; case 'd': - debug = 1; + dom_info.debug = 1; break; case 'e': - daemonize = 0; - monitor = 0; + dom_info.daemonize = 0; + dom_info.monitor = 0; break; case 'f': - filename = optarg; + dom_info.config_file = optarg; break; case 'i': - ignore_masks = 1; + dom_info.ignore_global_affinity_masks = 1; break; case 'n': dryrun_only = 1; break; case 'p': - paused = 1; + dom_info.paused = 1; break; case 'q': - quiet = 1; + dom_info.quiet = 1; break; } - memset(&dom_info, 0, sizeof(dom_info)); - for (; optind < argc; optind++) { if (strchr(argv[optind], '=') != NULL) { string_realloc_append(&dom_info.extra_config, argv[optind]); string_realloc_append(&dom_info.extra_config, "\n"); - } else if (!filename) { - filename = argv[optind]; + } else if (!dom_info.config_file) { + dom_info.config_file = argv[optind]; } else { help("create"); free(dom_info.extra_config); @@ -1238,20 +1250,6 @@ int main_create(int argc, char **argv) } } - dom_info.debug = debug; - dom_info.daemonize = daemonize; - dom_info.monitor = monitor; - dom_info.paused = paused; - dom_info.dryrun = dryrun_only; - dom_info.quiet = quiet; - dom_info.config_file = filename; - dom_info.migrate_fd = -1; - dom_info.send_back_fd = -1; - dom_info.vnc = vnc; - dom_info.vncautopass = vncautopass; - dom_info.console_autoconnect = console_autoconnect; - dom_info.ignore_global_affinity_masks = ignore_masks; - rc = create_domain(&dom_info); if (rc < 0) { free(dom_info.extra_config);