From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C9B8C433DB for ; Sat, 20 Feb 2021 23:30:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDC2F64E54 for ; Sat, 20 Feb 2021 23:30:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229817AbhBTXaA (ORCPT ); Sat, 20 Feb 2021 18:30:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229920AbhBTXXT (ORCPT ); Sat, 20 Feb 2021 18:23:19 -0500 Received: from mail-pf1-x434.google.com (mail-pf1-x434.google.com [IPv6:2607:f8b0:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89D22C061797 for ; Sat, 20 Feb 2021 15:22:32 -0800 (PST) Received: by mail-pf1-x434.google.com with SMTP id j24so1362934pfi.2 for ; Sat, 20 Feb 2021 15:22:32 -0800 (PST) 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 :mime-version:content-transfer-encoding; bh=BIGRgbEs/t4RBf6ZeZc16x5LJucnukGEkzkgq8yfXMo=; b=C2WE8xLVMkRF+kneEi9k1K80ncYOrIMr+3EDzits/omeQaePCUtkW70nb+mMHiCzJJ pnMCfYUIOljYsU4TziUHOuDMusb4XQDTK0O1mQ6Vf9kJsEiVvtNutTg5vb0LV0s9yvYU n/FXNy+wqYW9Drm09vgfU8+47/7WG4QrqJAGNRjLpu1y6dtjzykJJPNKgvKapvXdBKsC 2z89fVeC+cawkaW1QBxLxZ96/pd9F8ZSKMAyOOpQROvdEY1SQjfrzWYCWCgnhih2VZsG dQvLlxR7/6CTFSyW0qqCa0MELsGOOb47Zqjuwd/9UVqCS9Av6U1UJSm/ggOd9kVp8Eaj oZDg== 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:mime-version:content-transfer-encoding; bh=BIGRgbEs/t4RBf6ZeZc16x5LJucnukGEkzkgq8yfXMo=; b=q6I/ghSSKvx8xXnst7ZIrRBtSxGjeB4hw9lxypNTElzFjrDfvShfD9rxzDkCnucsle 0ENLSJO30zbsXcsiv8ReKSN7189XW0g94+Ms2gTWnsGOZq+QQuALjfJTaMqVGtveXlK5 7PRRFvjlyHqDi1Llfr/KitII9WTOh9sgmM6xe3PaNZ34yi9WvaiMPKb97zaBsmWGYAfJ 8zIeCXlPW5mKd9L0I+gmHaVYfM9EfCcR0argB4MvJRg+gTfK1ehdyVLlmWOML9nphRO5 Cwe7l3CmCitSeVDqzvqYmrlUQAzJXONKqWycIGmi5E+A2QRonrcbZu98DbiG4+gYHRih /pNA== X-Gm-Message-State: AOAM5333XeGQyN4WQzLhtUnhRjf+9Pkxx+zMHIxuSN9smumVkzFRa0BZ 3pOtkTqTdBRZiA30u/P0jJPJsjKbK1sLZw== X-Google-Smtp-Source: ABdhPJxDBsBdUY40gV8EEtqP1m72o80GQxnY9jF4K4a4fgPOTlwQawGeC6Sh/BklvHCfjESbQmMGeQ== X-Received: by 2002:a05:6a00:1353:b029:1c5:8a8d:7ee6 with SMTP id k19-20020a056a001353b02901c58a8d7ee6mr15199578pfu.13.1613863351714; Sat, 20 Feb 2021 15:22:31 -0800 (PST) Received: from sc2-haas01-esx0118.eng.vmware.com ([66.170.99.1]) by smtp.gmail.com with ESMTPSA id 4sm13171538pjc.23.2021.02.20.15.22.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 20 Feb 2021 15:22:31 -0800 (PST) From: Nadav Amit X-Google-Original-From: Nadav Amit To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , Andy Lutomirski , Thomas Gleixner , Nadav Amit , Dave Hansen Subject: [PATCH v6 7/9] cpumask: Mark functions as pure Date: Sat, 20 Feb 2021 15:17:10 -0800 Message-Id: <20210220231712.2475218-8-namit@vmware.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210220231712.2475218-1-namit@vmware.com> References: <20210220231712.2475218-1-namit@vmware.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nadav Amit cpumask_next_and() and cpumask_any_but() are pure, and marking them as such seems to generate different and presumably better code for native_flush_tlb_multi(). Reviewed-by: Dave Hansen Signed-off-by: Nadav Amit --- include/linux/cpumask.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 383684e30f12..c53364c4296d 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -235,7 +235,7 @@ static inline unsigned int cpumask_last(const struct cpumask *srcp) return find_last_bit(cpumask_bits(srcp), nr_cpumask_bits); } -unsigned int cpumask_next(int n, const struct cpumask *srcp); +unsigned int __pure cpumask_next(int n, const struct cpumask *srcp); /** * cpumask_next_zero - get the next unset cpu in a cpumask @@ -252,8 +252,8 @@ static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp) return find_next_zero_bit(cpumask_bits(srcp), nr_cpumask_bits, n+1); } -int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *); -int cpumask_any_but(const struct cpumask *mask, unsigned int cpu); +int __pure cpumask_next_and(int n, const struct cpumask *, const struct cpumask *); +int __pure cpumask_any_but(const struct cpumask *mask, unsigned int cpu); unsigned int cpumask_local_spread(unsigned int i, int node); int cpumask_any_and_distribute(const struct cpumask *src1p, const struct cpumask *src2p); -- 2.25.1