From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-189.mta1.migadu.com (out-189.mta1.migadu.com [95.215.58.189]) (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 153EF29346F for ; Sun, 5 Jul 2026 17:21:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.189 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783272065; cv=none; b=ZDRH1jmQqXz35maPUQLLuEeG4X6C8kFxxQH7NNvqc422Xmig6COmTnVfpI6A0Qs0pbnenrBs8jcuQ7P0ZQgEk9hfFJtaiEsQHj1qU9oSDEVqk4WPltjRHpZJCLLrF9R4oA8vJgok42uV9LCdTaslVRWziiezSGLicJOt65j5jo8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783272065; c=relaxed/simple; bh=//B5td3WGlWZKDRvGeKerJr1/AUEW5h+xKeF2NvtldU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=REKqLws9QOEE3D+Hqoo0vKVsIiH+JlZOapmblC12O0dEEaND8Hf9E+Cxp522JLdjXZm2Gm5f/XfYhTl/9LSrcVXzdnpXiyGtrJWQ7M61SiB/EfDT2QTlnINiOC0Uuaj5rvscOBGMpD8ug026/vICGoQxNomai90Z80Evvwq2dbA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=swi1zVNY; arc=none smtp.client-ip=95.215.58.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="swi1zVNY" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1783272061; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=i7+9r/eCTZeqHsrayKJ6oa/c2MAineowILksYl9Wf4s=; b=swi1zVNYpFHdfWQfqXopQnvQfEBfimYzyOX4UqG/sVvHX8xNb6dse0GjAUSA2tA1iZKOpd kExu4hjUgoHCU9DXg7Xene8/w+jER7l/xXzjdPB44yBLZQdHKM1HMyU8QutkqBh93+t/w3 6FIkz2itVJLCwfjNt/jZOkeN6KreHac= From: Thorsten Blum To: Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , K Prateek Nayak Cc: Thorsten Blum , linux-kernel@vger.kernel.org Subject: [PATCH RESEND] sched/mmcid: Use clamp() to simplify mm_cid_calc_pcpu_thrs() Date: Sun, 5 Jul 2026 19:20:54 +0200 Message-ID: <20260705172054.339425-2-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=775; i=thorsten.blum@linux.dev; h=from:subject; bh=//B5td3WGlWZKDRvGeKerJr1/AUEW5h+xKeF2NvtldU=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFlek8r0ZW5rK+iueJtiyXdtol2x74QP7/ZHx32a8m1rc 2Tqv4xpHaUsDGJcDLJiiiwPZv2Y4VtaU7nJJGInzBxWJpAhDFycAjARhjCG/1VndGJbvO7V5FeH 3JK03JuTqGv9fkH6np4LZ152fDuwR4Hhf5DhmkqmB/b3f/nF/3s/WX29oMGxPOH7yk9u/Gl7lXR 1LhcA X-Developer-Key: i=thorsten.blum@linux.dev; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Use clamp() to simplify the code and improve its readability. Signed-off-by: Thorsten Blum --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 8b791e9e9f67..31739bd43176 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -10785,7 +10785,7 @@ static inline unsigned int mm_cid_calc_pcpu_thrs(struct mm_mm_cid *mc) opt_cids = min(mc->nr_cpus_allowed, mc->users); /* Has to be at least 1 because 0 indicates PCPU mode off */ - return max(min(opt_cids - opt_cids / 4, num_possible_cpus() / 2), 1); + return clamp(opt_cids - opt_cids / 4, 1, num_possible_cpus() / 2); } static bool mm_update_max_cids(struct mm_struct *mm)