From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A9B413C9B3 for ; Fri, 18 Apr 2025 17:14:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744996443; cv=none; b=ngonoPFPM9AY15py5lqPiZ5ksT+GRT2PIiL0FsEO3HQpIQvf7X6OkV4616Nlr+eqgP5nz6rKmJevJ2Fq7Mq9Q/a6kBAeESQ3HmG2axSMQvSyjVA/8c4LCjKLmDPbdjRLuocLw/zQznDIzqnSxWu5bcgY2TKQPlE+Zdqi2xRIMBA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744996443; c=relaxed/simple; bh=jd1ecwHmwX3hXRj3osnvOTAoWV78DHR0Q0S6/Pu/47c=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=OC2PHHVkstr+O66FSP/xCX2NRSHD/hH9SInZzt5Gp1/fGbO/G5pD3+dF6aG2hArHFbck17TCjDCK/SDGRG7BdTfLxZpxpIrFYRcpaVE08YYZHw4mckGZredRsHwpEnxByJixvE0F/C1JI//cw1Bacrx1gNttvDZrBdGQ6isaf5Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=D7wbL9gs; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="D7wbL9gs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B728AC4CEEF; Fri, 18 Apr 2025 17:14:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744996442; bh=jd1ecwHmwX3hXRj3osnvOTAoWV78DHR0Q0S6/Pu/47c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D7wbL9gslBrISR3VcgHEe9xQkYw3Ws/9JZ42ZQO3O+XQQHB/LQYXGkjLTCOAJa350 JMQLMPDCvH0sW2qG/IYnGVuWvPRf7DiXxklZ4oAGChr5LqlOB/q57bFge4AP+n/kBc 6SiJ78rDcPKgv5fJ4Hzzs4mUZ6NrYPT/Q2y/NHW6QST6DYXBqGtnfnvOxWNG64mc9a QKFWNLQ7BVFST/vRTbZ14uApbi6Hn7ZxYRKlDKOUlplaXZ6/GE/rrq4PU5wriLU3uZ PG2u2LSm+35e6gp6JQgrX8pa7SiknxqJgSZiYK5JRnTmwoyeFzBUs7wdUXB+6RgohF lYY+WJspIdOJA== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id F158CCE176A; Fri, 18 Apr 2025 10:14:01 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: kernel-team@meta.com, Andrew Morton , Kuniyuki Iwashima , Mateusz Guzik , Petr Mladek , Steven Rostedt , John Ogness , Sergey Senozhatsky , Jon Pan-Doh , Bjorn Helgaas , Karolina Stolarek , "Paul E. McKenney" Subject: [PATCH v2 ratelimit 10/14] ratelimit: Allow zero ->burst to disable ratelimiting Date: Fri, 18 Apr 2025 10:13:55 -0700 Message-Id: <20250418171359.1187719-10-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <4edcefb0-cdbd-4422-8a08-ffc091de158e@paulmck-laptop> References: <4edcefb0-cdbd-4422-8a08-ffc091de158e@paulmck-laptop> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit If ->burst is zero, rate-limiting will be applied unconditionally. Therefore, make it low overhead. Signed-off-by: Paul E. McKenney Cc: Andrew Morton Cc: Kuniyuki Iwashima Cc: Mateusz Guzik Cc: Petr Mladek Cc: Steven Rostedt Cc: John Ogness Cc: Sergey Senozhatsky --- lib/ratelimit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/ratelimit.c b/lib/ratelimit.c index 90c9fe57eb422..04f16b8e24575 100644 --- a/lib/ratelimit.c +++ b/lib/ratelimit.c @@ -35,7 +35,7 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func) unsigned long flags; int ret; - if (!interval) + if (!interval || !burst) return 1; /* -- 2.40.1