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t=1639734838; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oMpHLFnAOlHU9gzC7TjjwaMdWTqq3NepEk77ZJXazSM=; b=LFkT2hiR+nhWMPeCbnCZ90aKZyU9Fyga69Ml965qq46P6DQvkE087AD1mKDDkMAbprAPbv xTFHH9NmdHfERfCQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 675F913F31; Fri, 17 Dec 2021 09:53:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id FzXJFzZevGHqHAAAMHmgww (envelope-from ); Fri, 17 Dec 2021 09:53:58 +0000 Subject: Re: [PATCH 1/1] multifd: Remove some redundant code To: Claudio Fontana , quintela@redhat.com, dgilbert@redhat.com, qemu-devel@nongnu.org References: <20211217093318.6260-1-lizhang@suse.de> <5ff179bb-cea8-35d9-f062-9cbfd3f7cb9e@suse.de> From: Li Zhang Message-ID: Date: Fri, 17 Dec 2021 10:53:57 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <5ff179bb-cea8-35d9-f062-9cbfd3f7cb9e@suse.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=195.135.220.29; envelope-from=lizhang@suse.de; helo=smtp-out2.suse.de X-Spam_score_int: -60 X-Spam_score: -6.1 X-Spam_bar: ------ X-Spam_report: (-6.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-1.716, RCVD_IN_DNSWL_MED=-2.3, 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" On 12/17/21 10:39 AM, Claudio Fontana wrote: > Hi Li, > > the full function for context: > > static void multifd_new_send_channel_async(QIOTask *task, gpointer opaque) > { > MultiFDSendParams *p = opaque; > QIOChannel *sioc = QIO_CHANNEL(qio_task_get_source(task)); > Error *local_err = NULL; > > trace_multifd_new_send_channel_async(p->id); > if (qio_task_propagate_error(task, &local_err)) { > goto cleanup; > } else { > p->c = QIO_CHANNEL(sioc); > qio_channel_set_delay(p->c, false); > p->running = true; > if (!multifd_channel_connect(p, sioc, local_err)) { > goto cleanup; > } > return; > } > > cleanup: > multifd_new_send_channel_cleanup(p, sioc, local_err); > } > > > > On 12/17/21 10:33 AM, Li Zhang wrote: >> Clean up some unnecessary code >> >> Signed-off-by: Li Zhang >> --- >> migration/multifd.c | 9 ++------- >> 1 file changed, 2 insertions(+), 7 deletions(-) >> >> diff --git a/migration/multifd.c b/migration/multifd.c >> index 3242f688e5..1405cf95b8 100644 >> --- a/migration/multifd.c >> +++ b/migration/multifd.c >> @@ -854,9 +854,7 @@ static void multifd_new_send_channel_async(QIOTask *task, gpointer opaque) >> Error *local_err = NULL; >> >> trace_multifd_new_send_channel_async(p->id); >> - if (qio_task_propagate_error(task, &local_err)) { >> - goto cleanup; > > I see you are removing this goto, but keeping there the other one.. is this a bit inconsistent? Ah, you are right. The other one is not necessary anymore. > > Should the second check be inverted too, to remove the other goto as well? I would like to remove the goto and call the function directly. > > Ciao, > > Claudio > >> - } else { >> + if (!qio_task_propagate_error(task, &local_err)) { >> p->c = QIO_CHANNEL(sioc); >> qio_channel_set_delay(p->c, false); >> p->running = true; >> @@ -1078,10 +1076,7 @@ static void *multifd_recv_thread(void *opaque) >> >> ret = qio_channel_read_all_eof(p->c, (void *)p->packet, >> p->packet_len, &local_err); >> - if (ret == 0) { /* EOF */ >> - break; >> - } >> - if (ret == -1) { /* Error */ >> + if (ret == 0 || ret == -1) { /* 0: EOF -1: Error */ >> break; >> } >> >> >