From patchwork Thu Dec 8 18:31:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yury Norov X-Patchwork-Id: 13068668 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95603C4332F for ; Thu, 8 Dec 2022 18:32:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229885AbiLHSb7 (ORCPT ); Thu, 8 Dec 2022 13:31:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46932 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229894AbiLHSbS (ORCPT ); Thu, 8 Dec 2022 13:31:18 -0500 Received: from mail-ot1-x329.google.com (mail-ot1-x329.google.com [IPv6:2607:f8b0:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0279AE4FD; Thu, 8 Dec 2022 10:31:14 -0800 (PST) Received: by mail-ot1-x329.google.com with SMTP id l8-20020a056830054800b006705fd35eceso1362463otb.12; Thu, 08 Dec 2022 10:31:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=k44aAa8w+g09OTVc3BtKD/GeVUZOQmCH52b2zgD7vNE=; b=kJnn8W88eYCSTCdaionDWs5lanPHeksZRwOquRqQpTBf+8LE/3uQ6Kb7qIiD+I2JFB NXC1hNgGIMNa4RtjALbAPIj6NPXaAplZSYXFpEgFkCE4Kuvr62KzE9Db6q3E1uaCKomN EIMjj/zqnYLqPfVe+aWersTJ5haEMRKBNYkkM/2+XbFQAQ4YHH1RxjnPmpxvHaUnjvU2 ZRhNYhUEHZFxgLz1LFrWWFbSfevTzqa0HvdTj1q3AuGflLvTvBTsVo/X2HEusft2UGsW Q7Ih9kt50RqgUeUUITRHBrHUwXI7bvDSkpH02dZ/dQN5XFutYGi6lP5X4TUXs6MCZIRn fFTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=k44aAa8w+g09OTVc3BtKD/GeVUZOQmCH52b2zgD7vNE=; b=AS8kMgIt5wpLTCjPlxvwekueIeibvqTLzAiC78348nVkbvNKMVPaVf/BuvXISj8gIL n52qWIaJqzpSMTeW7w/ekN7bmfTuuknKFGHKcY5hGxl2cYv8aQaVL3zqLr1YSzFy4WWt pjhBiYSSfRhBjMx4YLDsPZMU3Kbx3dOp/GaVkHrBNE20uieS3bsalN8Ihuzh7V/z5cEO D5m7xqaXG5EyZeyMGbU5H3R6SXdipq4xRcN5gz/Ee+4EPXotrSuWq6wNhR7BsABCJpUa lbwg6zTWwLlwp3f8VYtCidQHUrxf+vxhO2rVKJQKbJdTyxTNHKYoD/q7wbRiDwYL/FdL 0iLA== X-Gm-Message-State: ANoB5pm12qik4BhbF3BA73eNYRQcFcAWtjIWX7mKVdMPpojd2Mm+/pke TLxhxkJN2FeiA9ZAGNMy4cg9xmPzPG8= X-Google-Smtp-Source: AA0mqf5qkVMTNLwYrHEwSHnT1jBNeG/TVLvAyXhtP9eQdTstA6d6OIfcNnz3oSL3kXGPlxhIOl1IdQ== X-Received: by 2002:a9d:5f02:0:b0:66d:a5fa:5c54 with SMTP id f2-20020a9d5f02000000b0066da5fa5c54mr1449103oti.1.1670524273395; Thu, 08 Dec 2022 10:31:13 -0800 (PST) Received: from localhost ([12.97.180.36]) by smtp.gmail.com with ESMTPSA id x26-20020a9d629a000000b006705e35c4e2sm3077138otk.35.2022.12.08.10.31.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Dec 2022 10:31:13 -0800 (PST) From: Yury Norov To: linux-kernel@vger.kernel.org, "David S. Miller" , Andy Shevchenko , Barry Song , Ben Segall , haniel Bristot de Oliveira , Dietmar Eggemann , Gal Pressman , Greg Kroah-Hartman , Heiko Carstens , Ingo Molnar , Jakub Kicinski , Jason Gunthorpe , Jesse Brandeburg , Jonathan Cameron , Juri Lelli , Leon Romanovsky , Mel Gorman , Peter Zijlstra , Rasmus Villemoes , Saeed Mahameed , Steven Rostedt , Tariq Toukan , Tariq Toukan , Tony Luck , Valentin Schneider , Vincent Guittot Cc: Yury Norov , linux-crypto@vger.kernel.org, netdev@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH v3 5/5] lib/cpumask: reorganize cpumask_local_spread() logic Date: Thu, 8 Dec 2022 10:31:01 -0800 Message-Id: <20221208183101.1162006-6-yury.norov@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221208183101.1162006-1-yury.norov@gmail.com> References: <20221208183101.1162006-1-yury.norov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org Now after moving all NUMA logic into sched_numa_find_nth_cpu(), else-branch of cpumask_local_spread() is just a function call, and we can simplify logic by using ternary operator. While here, replace BUG() with WARN(). Signed-off-by: Yury Norov Reviewed-by: Peter Lafreniere --- lib/cpumask.c | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/lib/cpumask.c b/lib/cpumask.c index 255974cd6734..c7029fb3c372 100644 --- a/lib/cpumask.c +++ b/lib/cpumask.c @@ -127,16 +127,12 @@ unsigned int cpumask_local_spread(unsigned int i, int node) /* Wrap: we always want a cpu. */ i %= num_online_cpus(); - if (node == NUMA_NO_NODE) { - cpu = cpumask_nth(i, cpu_online_mask); - if (cpu < nr_cpu_ids) - return cpu; - } else { - cpu = sched_numa_find_nth_cpu(cpu_online_mask, i, node); - if (cpu < nr_cpu_ids) - return cpu; - } - BUG(); + cpu = node == NUMA_NO_NODE ? + cpumask_nth(i, cpu_online_mask) : + sched_numa_find_nth_cpu(cpu_online_mask, i, node); + + WARN_ON(cpu >= nr_cpu_ids); + return cpu; } EXPORT_SYMBOL(cpumask_local_spread);