From patchwork Wed Sep 11 13:28:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yang X-Patchwork-Id: 11141099 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9D5A21395 for ; Wed, 11 Sep 2019 13:29:55 +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 74DFE2084D for ; Wed, 11 Sep 2019 13:29:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="u1dC051L" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 74DFE2084D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:51096 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i82h0-0004Xl-AV for patchwork-qemu-devel@patchwork.kernel.org; Wed, 11 Sep 2019 09:29:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59991) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1i82fx-0003Iv-TR for qemu-devel@nongnu.org; Wed, 11 Sep 2019 09:28:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1i82fx-00025i-13 for qemu-devel@nongnu.org; Wed, 11 Sep 2019 09:28:49 -0400 Received: from mail-ed1-x52f.google.com ([2a00:1450:4864:20::52f]:33210) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1i82fw-00025J-Rm for qemu-devel@nongnu.org; Wed, 11 Sep 2019 09:28:48 -0400 Received: by mail-ed1-x52f.google.com with SMTP id o9so20683401edq.0 for ; Wed, 11 Sep 2019 06:28:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=V1495VjBr5Eee/kq6x6EHhYczJaWW3yVjCdU/LV7Ty4=; b=u1dC051LW77bp9B23kRV6AmfNSzZIwY/X9BYF2a6TDEKc1AeTGHez/Kl7AMII19QMV 1ECJN244Q9y5QOvl0JcryTbTpMY2XM+fueQOZLhMlVvoULrTdLvqJ8BFxIdvA/QOPQwS 2JDO0bhu/0AT8kOg0n6XkNuQXXMrzzf1ReMXQmDQAuEftQIqghKDFif3neBwQ43lNuGC pOw0robJ2T0N+DHPpDe14PCK+21g9zJEajzJPZmSOnaq/N7ZL7hyG0qQOF2KJw7WRDmV anDpsFPoElyTxOmpRY5Oe7IQgFdb6X4RSe+foX5Agidqs7rA14C2jb9xKtqyXpljpCfW 3isw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=V1495VjBr5Eee/kq6x6EHhYczJaWW3yVjCdU/LV7Ty4=; b=cEgHL2NTmY9X6zWPFoPxj46/XfaTNEjm3wc87YUnkBxO5QSMql5uitzWRDse6UA0Fo ZbTu9HQ9efhkXEQmjpg6MNhku4XhRNoQE24aj/NTYb1v8a+zKFUl5VYehZDLyqEI9GJm 3o2nKqMO1PSiu0mnMPBg5i0a6FcfMc6wXwO3uVWKaoaaS7xtB1uiaeIX3pgepQbFq4cf wgdVTuG+CubTJ5dTZ7ZTjEoInqRTSP3QF75+fdN9RokHIEdjO5AHlgSbOkQERI+uzVVu VoyNWWzXIBa5H60xVrPBgf+yuZCulmCqlW7RuRXeN+jVwMZoSDJV0QqIgkN+gxTNnEUX qNMQ== X-Gm-Message-State: APjAAAUsb1dLtBeJbwIQx0Lm2Ncs2rzqux9hiVhDNPC22afwXjsHJlu0 sNDVOsBJVEbPnEaqDGZ7PSiiHKDD X-Google-Smtp-Source: APXvYqz/zsLNxS3uISJ4ENjDI6gz6yqweEDYUKpv3fPJd3m3hDB+9uFfrQIG3F4redSfZZ9VB4qmOg== X-Received: by 2002:a17:906:aad2:: with SMTP id kt18mr29677939ejb.201.1568208527577; Wed, 11 Sep 2019 06:28:47 -0700 (PDT) Received: from localhost ([185.92.221.13]) by smtp.gmail.com with ESMTPSA id l1sm4152298edc.11.2019.09.11.06.28.46 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 11 Sep 2019 06:28:46 -0700 (PDT) From: Wei Yang To: qemu-devel@nongnu.org Date: Wed, 11 Sep 2019 13:28:38 +0000 Message-Id: <20190911132839.23336-2-richard.weiyang@gmail.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190911132839.23336-1-richard.weiyang@gmail.com> References: <20190911132839.23336-1-richard.weiyang@gmail.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::52f Subject: [Qemu-devel] [PATCH V2 1/2] migration/qemu-file: remove check on writev_buffer in qemu_put_compression_data 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: Wei Yang , dgilbert@redhat.com, quintela@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Wei Yang The check of writev_buffer is in qemu_fflush, which means it is not harmful if it is NULL. And removing it will make the code consistent since all other add_to_iovec() is called without the check. Signed-off-by: Wei Yang Reviewed-by: Dr. David Alan Gilbert --- migration/qemu-file.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/migration/qemu-file.c b/migration/qemu-file.c index e33c46764f..47f16d0e54 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -761,9 +761,7 @@ ssize_t qemu_put_compression_data(QEMUFile *f, z_stream *stream, } qemu_put_be32(f, blen); - if (f->ops->writev_buffer) { - add_to_iovec(f, f->buf + f->buf_index, blen, false); - } + add_to_iovec(f, f->buf + f->buf_index, blen, false); f->buf_index += blen; if (f->buf_index == IO_BUF_SIZE) { qemu_fflush(f);