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 60724C433E0 for ; Wed, 10 Feb 2021 01:14:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1694764E3F for ; Wed, 10 Feb 2021 01:14:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234718AbhBJBOy (ORCPT ); Tue, 9 Feb 2021 20:14:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234143AbhBIWYf (ORCPT ); Tue, 9 Feb 2021 17:24:35 -0500 Received: from mail-pl1-x62b.google.com (mail-pl1-x62b.google.com [IPv6:2607:f8b0:4864:20::62b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02D64C061224 for ; Tue, 9 Feb 2021 14:21:27 -0800 (PST) Received: by mail-pl1-x62b.google.com with SMTP id d13so100245plg.0 for ; Tue, 09 Feb 2021 14:21:26 -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=vGwYMuoA/+ahXke9oYiC70zL9lBda/6UphvWrpObbGM=; b=OWbeRvApKIMIa44WG70mylfOqlaC7KAvsBVdljzD+2f9LIhPbOjmjqHFEATxHrb1pZ nQGby43Wnvh0V8mkA9X6eezyAsh7RmIJopD7OVX7v7SaycdDuWgS17kjjY9Ehbjz9zuB BIr1cNWIxEIHfIcW846FmKyNapslVueGrGpn2JFhbFObAtCsgi6Hmq07i5jeM7/03jll 0dJ4rA2mEhn+ER1+zkqkiKf7OnS7dGV2a1kiUg0yKV/3HZGoXJ4OhdvFPWBfO4qfV2TG Njze0I1eXIrBNdTuOi/BvY14ceumZcmXnMGbbsLfmt/aP6UV3hDAkhNykNJmiQhSFm+z /LMw== 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=vGwYMuoA/+ahXke9oYiC70zL9lBda/6UphvWrpObbGM=; b=QnYEE28i4kSHNlD2//LXdOZsuRwSL5kp+lVxHCGly3h9lisc53s262gR8CYgpe0WcR 1QIkjrLuQ/kMUnxP53wW5QJEf30gRkeYbcyJ80J5O8nhl/vejdI2dwJUoRMFHywZqs7g Re37KfdtWumJv6B41PTpRXgEWzRi5+zJnVyR/0RTt8m801ZzB/ziUdlYI9l2H4bIB14N 7fAn4wMx8I6j6pfSPlHR5UvzIgXnKd/YwDnXONiNUor7dOENqo8wUSreksZO1U4a0QAD otW5TwSKs2ek6XssxdycrtJB2h5MyQMuGgZnYQOaeWGklou2/1ktor+uI7LlMH20m/XN Bn8w== X-Gm-Message-State: AOAM531XU2p1jlVhuQH/5fC1tR7iZA7ZPAUZ7RrE+m/sMboWr3iV/xXJ 91mx3EvPRDMEUhdO1t9ijd8= X-Google-Smtp-Source: ABdhPJxGcxpwdhAuvO2qPNGyvitX9m70atthLRVHrS6uXQMbXQQS18Qh8w0o8BfB1lRp9Y8tH/lW4A== X-Received: by 2002:a17:90a:206:: with SMTP id c6mr69279pjc.50.1612909286476; Tue, 09 Feb 2021 14:21:26 -0800 (PST) Received: from sc2-haas01-esx0118.eng.vmware.com ([66.170.99.1]) by smtp.gmail.com with ESMTPSA id v9sm58601pju.33.2021.02.09.14.21.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 14:21:25 -0800 (PST) From: Nadav Amit X-Google-Original-From: Nadav Amit To: Thomas Gleixner Cc: linux-kernel@vger.kernel.org, Andy Lutomirski , Peter Zijlstra , Dave Hansen , Nadav Amit Subject: [PATCH v5 7/8] cpumask: Mark functions as pure Date: Tue, 9 Feb 2021 14:16:52 -0800 Message-Id: <20210209221653.614098-8-namit@vmware.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210209221653.614098-1-namit@vmware.com> References: <20210209221653.614098-1-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..e86b7d027cfb 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); +__pure int cpumask_next_and(int n, const struct cpumask *, const struct cpumask *); +__pure int 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