From nobody Mon Feb 9 09:18:26 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=126.com ARC-Seal: i=1; a=rsa-sha256; t=1663688835; cv=none; d=zohomail.com; s=zohoarc; b=CfDsMkIImKAm4J2ztMugImlW5b+723Bx8zKExoVTvIoCd0Qcj08fqgbIfm2tCUSEBM2+AU7rqJzi9LMCPdRjfJRE2aagSvtwJjAuoltvN9ebB/tkxlAP822h0lR73mc9FqAnw8x5svDMFbbewXeVsVHwIyMT20cuGaFuKhSdcHQ= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1663688835; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=bhm6ckdBWPnkoJ7YlE7d0BLIpXDAhpF8yrM5FTUJ928=; b=KYWj/gPsM1lkOJlBqjfg3o4IjBomioBIP3n7lHskeM7ShLgfVERwXD6DFG0/sYka2Ewz8kLgAqrN3OphPy+JwBzbvH8JKPmnQ7VSaf9QJjUo3xyZFxg7gyavG51uq3zfdO7795ZMA+NsRl3WQpysD1ICv2usHpQp94DCmTzS8wo= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1663688835736961.8513068569914; Tue, 20 Sep 2022 08:47:15 -0700 (PDT) Received: from localhost ([::1]:53902 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oafSq-0004ud-JR for importer@patchew.org; Tue, 20 Sep 2022 11:47:12 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57528) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oacxa-0004y3-Cy; Tue, 20 Sep 2022 09:06:46 -0400 Received: from m15112.mail.126.com ([220.181.15.112]:34345) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oacxU-00008A-4G; Tue, 20 Sep 2022 09:06:44 -0400 Received: from localhost.localdomain (unknown [117.160.246.157]) by smtp2 (Coremail) with SMTP id DMmowACXm7Bmsylj6TyqBw--.25196S4; Tue, 20 Sep 2022 20:34:48 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=126.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=bhm6c kdBWPnkoJ7YlE7d0BLIpXDAhpF8yrM5FTUJ928=; b=THfnhLc0D1O/ZWAY12fCY yFhQCRr1HlCMqIgph+P4vSrdTNqwtCvyIItydD+QYxh5sHSpXPSrEBVf8bWgzTdB 8KXcjxkQvG7IKaDpI3re3US7c6IJeCJZ9zkIIhpqrc6alS+WBQ47Gb6ZkvryZ3Di eoFxo8z5Tn0Wmj+izrlAis= From: wangliangzz@126.com To: qemu-devel@nongnu.org, qemu-block@nongnu.org, wangliangzz@126.com Cc: pbonzini@redhat.com, stefanha@redhat.com, silbe@linux.vnet.ibm.com, berto@igalia.com, Wang Liang Subject: [PATCH] ratelimit: restrict the delay time to a non-negative value Date: Tue, 20 Sep 2022 20:33:50 +0800 Message-Id: <20220920123350.205391-1-wangliangzz@126.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: DMmowACXm7Bmsylj6TyqBw--.25196S4 X-Coremail-Antispam: 1Uf129KBjvdXoW7GFW7Zr15tF18XryDZw4xJFb_yoWfJFgEga y7X3yrury8Z3Z7ua17A3Zayr1Sqr1rXayxGr18GwsrAFyktrs5AFWUGa17KFZ7uF42qFZ5 WF1q934vyr4kGjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7xRK-eOJUUUUU== X-Originating-IP: [117.160.246.157] X-CM-SenderInfo: pzdqwzpldqw6b26rjloofrz/1tbiLQiC1lpD-keqAQAAs6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=220.181.15.112; envelope-from=wangliangzz@126.com; helo=m15112.mail.126.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @126.com) X-ZM-MESSAGEID: 1663688837450100001 Content-Type: text/plain; charset="utf-8" From: Wang Liang The delay time should never be a negative value. Signed-off-by: Wang Liang --- include/qemu/ratelimit.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/qemu/ratelimit.h b/include/qemu/ratelimit.h index 48bf59e857..c8ea855fc1 100644 --- a/include/qemu/ratelimit.h +++ b/include/qemu/ratelimit.h @@ -69,7 +69,7 @@ static inline int64_t ratelimit_calculate_delay(RateLimit= *limit, uint64_t n) delay_slices =3D (double)limit->dispatched / limit->slice_quota; limit->slice_end_time =3D limit->slice_start_time + (uint64_t)(delay_slices * limit->slice_ns); - return limit->slice_end_time - now; + return MAX(limit->slice_end_time - now, 0); } =20 static inline void ratelimit_init(RateLimit *limit) --=20 2.31.1