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=-7.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 5806BC433DB for ; Thu, 28 Jan 2021 08:26:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE96E64D9D for ; Thu, 28 Jan 2021 08:26:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231826AbhA1IZv (ORCPT ); Thu, 28 Jan 2021 03:25:51 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:57460 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231698AbhA1IZl (ORCPT ); Thu, 28 Jan 2021 03:25:41 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611822255; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=86GGfjuYM3AI7mr7QU3sHTo8h+wDitIDwwAKJzsDkt4=; b=jVFZJXzar1VHdyDormgxxOK2X9zq4OA9ZzTTNhxjZHdSD6Y7DY7wTayVM1DamIBQpo7ezo FzqX7RjOndQSq7Oyn/KNUO0rAPulEmCLiGST5vadNU7pwvlCvIXdfjHK7ubtQA/Namm4bw 48arkLphk68HDCr/qBHv45eELxq1h5g= Received: from mail-ed1-f69.google.com (mail-ed1-f69.google.com [209.85.208.69]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-127-aHzowZ_cPUaGxyEQvVG7dg-1; Thu, 28 Jan 2021 03:24:13 -0500 X-MC-Unique: aHzowZ_cPUaGxyEQvVG7dg-1 Received: by mail-ed1-f69.google.com with SMTP id f12so2818499edq.15 for ; Thu, 28 Jan 2021 00:24:13 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=86GGfjuYM3AI7mr7QU3sHTo8h+wDitIDwwAKJzsDkt4=; b=GK4SQjX3eLIWKBue9CjlTRv3mWDGNsqzVdCvhQTETyPPw5RYbAK6kp8UeKZb3j9dPn E/D9j0jznGJ8K9ezM6KpGrcTvkUlQT/MwlZl/Vts6ySHoppsEBQNr/gpTvTgUD+h6Hg4 D3q5IQU9iYW2MYVDkaDeRPs/1z9iZ+a5PcNm8EQQpcjBcWQtTg+5TvSFDlcV4nu9Bavo Qjvp7k8M6oqUhpiGAmyBbDOYjHrSrAepyNG26E1YBJ7TyhQKUIkdimbka4DW9YP3JvKt CJUNcSSJ6EnRbHPlMdY56midHnUarOXlPE3w6YQvpZZdhkChK8ta33dqcesQimkpqH4X XJYQ== X-Gm-Message-State: AOAM532/NapNsQ7pf8J3fvbKYUCN2fbhsdEcrC9YaQhW4NBqBl9mvH+L bO0fb/oh/gqdCq90T/zxtb3zhN9wYP/A0nb7nR4cb+gc7ZBUI4NcLFqJFCc70OlhsmQnnyDeZe/ K0PFyyv8cEuR/oMlSofpdA14ICW7lhYfTpJcTRdRsRwfE1sZ4ibVkVQ+rLIEyB2cEcVGns1QWOH Z7 X-Received: by 2002:a50:fc97:: with SMTP id f23mr13618239edq.307.1611822252371; Thu, 28 Jan 2021 00:24:12 -0800 (PST) X-Google-Smtp-Source: ABdhPJzKeyRQU9dTdlY4Nl3GONGetNGeiPQr74OAYJp5BcB/yhphlMwTsYUn9nYqkvL8aFBxIUZZSg== X-Received: by 2002:a50:fc97:: with SMTP id f23mr13618213edq.307.1611822252108; Thu, 28 Jan 2021 00:24:12 -0800 (PST) Received: from ?IPv6:2001:b07:6468:f312:c8dd:75d4:99ab:290a? ([2001:b07:6468:f312:c8dd:75d4:99ab:290a]) by smtp.gmail.com with ESMTPSA id t11sm2496533edd.1.2021.01.28.00.24.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 28 Jan 2021 00:24:11 -0800 (PST) Subject: Re: [PATCH] KVM: x86/mmu: Add '__func__' in rmap_printk() To: Joe Perches , Stephen Zhang , seanjc@google.com, vkuznets@redhat.com, wanpengli@tencent.com, jmattson@google.com, joro@8bytes.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org References: <1611713325-3591-1-git-send-email-stephenzhangzsd@gmail.com> <244f1c7f-d6ca-bd7c-da5e-8da3bf8b5aee@redhat.com> <854ee6dc-2299-3897-c4af-3f7058f195af@redhat.com> <10805faed4d19ce842cef277b74479a883514afe.camel@perches.com> From: Paolo Bonzini Message-ID: <409943d7-5917-9269-98eb-1a9ca704fda3@redhat.com> Date: Thu, 28 Jan 2021 09:24:09 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <10805faed4d19ce842cef277b74479a883514afe.camel@perches.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 27/01/21 19:28, Joe Perches wrote: > It's not enabled unless DEBUG is defined (and it's not enabled by default) > or CONFIG_DYNAMIC_DEBUG is enabled and then dynamic_debug jump points are > used when not enabled so I think any slowdown, even when dynamic_debug is > enabled is trivial. Ah, I confused DEBUG with CONFIG_DEBUG_KERNEL. I'll post a patch, thanks! Paolo