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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C23CC54EBD for ; Mon, 9 Jan 2023 17:58:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237265AbjAIRnd (ORCPT ); Mon, 9 Jan 2023 12:43:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235012AbjAIRn2 (ORCPT ); Mon, 9 Jan 2023 12:43:28 -0500 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE91D1ADA8 for ; Mon, 9 Jan 2023 09:43:27 -0800 (PST) Received: by mail-pf1-x42a.google.com with SMTP id y5so6722946pfe.2 for ; Mon, 09 Jan 2023 09:43:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=GSSXv+I+w/8fq5Yx5Ez6ORBTwPIwCfMMjmGhcpp+UqU=; b=g0eGXd1q88kKO1UBdVGzjP/95p/jpiFOz1tlu9gArFeF2qE16G4bVRKZnTw+XZWtP+ EXrJCYtuU4eMsLsoIGwLHGE/k07Dndjexhtc4+89wiIh6t0htZq88FgfPeF2HiM+62gW 6bVYPLutu6hFNdoSRn3rQ3obSPWJsZ/DaHbp0ph0JiEXjk2KMis4Qd8AW9xA1OlPRfcO IRE2Tydovrr2fE+hnvN0agTBvFC49yxzQWirTToKPy0kam/RY/O5O+6uTm/r2z8YrQ3h YOdKyhwgMJMT55xd9yRJf6srnW5aApxQjTtPOI1niagvZTpis4FDOtgy/qD+Nl8IXzWT vPfA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=GSSXv+I+w/8fq5Yx5Ez6ORBTwPIwCfMMjmGhcpp+UqU=; b=4RkI0ecefLc3wHn8mNY4nTA9eCtdMpQP9OnIzGFJzlfhrX/vI16ygTUPvVOCguL28D c2kgwJwOvVeQpGr5A/3Cog2cPuyncfNjjfSktVq8sk2tmHcjaW1JrV6mNF+pULCuxoY3 aSiedBJ68K3PSWTv39WTrGukkZcesaik2ixOz8gmup/o/KT5TQUM9b0grqLUb+FfRTQB lmWHWnuqCuErm3A9legfSI2m+E9H8gf+QvXZ6c8Ac6pVvToCmSl7W93p0dZIN0yVSv1y 265yBty+ZuEq4gFs0FHet072uG07xcRAbEHCYAHmpuIeE5LBenRdNU6H1Kace/c+ad/4 kGTA== X-Gm-Message-State: AFqh2krKg87P7+IzKzBE4dtk1mi9Fb7lV9ae8DxZFpDVXxsYrd/kBg3A SIf4r8uYrOkFgl49LF4Qs01SxA== X-Google-Smtp-Source: AMrXdXuahdX5fT5IrjPkz4RnJUA4Kk4OaigXHUxhSIcCKVvee6MrvxGtSvPNdBbAdchzeYDmGAb45w== X-Received: by 2002:aa7:9249:0:b0:576:9252:d06 with SMTP id 9-20020aa79249000000b0057692520d06mr740111pfp.0.1673286207259; Mon, 09 Jan 2023 09:43:27 -0800 (PST) Received: from google.com (7.104.168.34.bc.googleusercontent.com. [34.168.104.7]) by smtp.gmail.com with ESMTPSA id k197-20020a6284ce000000b00574b86040a4sm6350861pfd.3.2023.01.09.09.43.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Jan 2023 09:43:26 -0800 (PST) Date: Mon, 9 Jan 2023 17:43:23 +0000 From: Sean Christopherson To: "Paul E. McKenney" Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Paolo Bonzini , x86@kernel.org, kvm@vger.kernel.org Subject: Re: [PATCH rcu 01/27] arch/x86: Remove "select SRCU" Message-ID: References: <20230105003759.GA1769545@paulmck-ThinkPad-P17-Gen-1> <20230105003813.1770367-1-paulmck@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230105003813.1770367-1-paulmck@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 04, 2023, Paul E. McKenney wrote: > Now that the SRCU Kconfig option is unconditionally selected, there is > no longer any point in selecting it. Therefore, remove the "select SRCU" > Kconfig statements. > > Signed-off-by: Paul E. McKenney > Cc: Thomas Gleixner > Cc: Ingo Molnar > Cc: Borislav Petkov > Cc: Dave Hansen > Cc: "H. Peter Anvin" > Cc: Sean Christopherson > Cc: Paolo Bonzini > Cc: > Cc: > --- ... > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > index fbeaa9ddef598..9306d99585188 100644 > --- a/arch/x86/kvm/Kconfig > +++ b/arch/x86/kvm/Kconfig > @@ -46,7 +46,6 @@ config KVM > select KVM_XFER_TO_GUEST_WORK > select KVM_GENERIC_DIRTYLOG_READ_PROTECT > select KVM_VFIO > - select SRCU Would it be too much trouble to bundle all of the KVM changes into a single patch? The SRCU requirement is a generic KVM requirement that's handled in the arch Kconfigs purely because of KVM's somewhat roundabout Kconfig setup. > select INTERVAL_TREE > select HAVE_KVM_PM_NOTIFIER if PM > help > -- > 2.31.1.189.g2e36527f23 >