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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 32161C4332B for ; Fri, 20 Mar 2020 22:47:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 05D0B2072D for ; Fri, 20 Mar 2020 22:47:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="BC9QvV5W" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727532AbgCTWrz (ORCPT ); Fri, 20 Mar 2020 18:47:55 -0400 Received: from us-smtp-delivery-74.mimecast.com ([63.128.21.74]:38976 "EHLO us-smtp-delivery-74.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726880AbgCTWry (ORCPT ); Fri, 20 Mar 2020 18:47:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1584744473; 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: in-reply-to:in-reply-to:references:references; bh=WUk4FuE693/Ims71nGi8Vyb20vScmj2OBiS6y31l7rg=; b=BC9QvV5WJMG/3RtPazoq+NICfrSLUlgx7B2s0I6GGBjyDMfZeD4FvwiF8D7tA5IaBkjtej SuW3cEDJtYiXg21D80a61zu3/ShBQR0lnN25s4oTS6ov5/9NKDSmJNy6suqBGTJ+CZYTnS hlxKV0xM1iAzsToxsGleZBJxLP7LkXo= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-284-0ATRpAtlPvKrLUjMpUBfCA-1; Fri, 20 Mar 2020 18:47:52 -0400 X-MC-Unique: 0ATRpAtlPvKrLUjMpUBfCA-1 Received: by mail-wr1-f71.google.com with SMTP id t4so3353164wrr.1 for ; Fri, 20 Mar 2020 15:47:52 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=WUk4FuE693/Ims71nGi8Vyb20vScmj2OBiS6y31l7rg=; b=GrP5omWYLB2YqAlY3cd+cW9q7gGHJ0fgsuRKnmk2JOHz9irWmQ6J8r7Pn3PaMmc6ps mRZgBKWrrsA5VJC0Clt1xV4dt8aEWG1BBxnGXQtXlulsUYqla/Oda68T7gGGhGxacpgd pFEld+PgMw5P+qT6JtKDH++tb7KSHZc/S/ZtEOairFl8ZP6f6q/5XJ9Zg5tsOFIZ+QYX 0WApyGQxWwDzcO8KEsgO+9zW426Ba4juTskvXoHGrrdXSSG4NyvWzZvHd5diHRyHbKTm CFqwW2ZSTcnGlr/kClNyX/JEcF9qnBTWwDpeL1p0usRTB+dlM1q+kRf231UQmlT9Yeei 48ug== X-Gm-Message-State: ANhLgQ3Uja1nKX6/KJ2fabmqxcq8YXTEs8xUTtNmjUyDYEJYt/X0NKRp 0cwkcyQFS2japv00OXlaDWD8Vc9RL7YexeuveUaEjqlqgkwIp9/nV88kVujQySgqiOmqAW6WFKW lETwnWd9ZV1Gk X-Received: by 2002:a1c:4642:: with SMTP id t63mr12556354wma.164.1584744471136; Fri, 20 Mar 2020 15:47:51 -0700 (PDT) X-Google-Smtp-Source: ADFU+vuPybOpKmuJb0qYlCdkGVlgmgPsG4GTfzqG4QJZsauttmA//egJ/jt8Hv5GEno+xQ6dO7QrBg== X-Received: by 2002:a1c:4642:: with SMTP id t63mr12556341wma.164.1584744470945; Fri, 20 Mar 2020 15:47:50 -0700 (PDT) Received: from xz-x1 ([2607:9880:19c0:32::2]) by smtp.gmail.com with ESMTPSA id 61sm11285191wrn.82.2020.03.20.15.47.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Mar 2020 15:47:49 -0700 (PDT) Date: Fri, 20 Mar 2020 18:47:44 -0400 From: Peter Xu To: Sean Christopherson Cc: Christian Borntraeger , Janosch Frank , Paolo Bonzini , David Hildenbrand , Cornelia Huck , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Qian Cai Subject: Re: [PATCH 4/7] KVM: selftests: Add helpers to consolidate open coded list operations Message-ID: <20200320224744.GG127076@xz-x1> References: <20200320205546.2396-1-sean.j.christopherson@intel.com> <20200320205546.2396-5-sean.j.christopherson@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200320205546.2396-5-sean.j.christopherson@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Fri, Mar 20, 2020 at 01:55:43PM -0700, Sean Christopherson wrote: > Add helpers for the KVM sefltests' variant of a linked list to replace a > variety of open coded adds, deletes and iterators. > > Signed-off-by: Sean Christopherson > --- > tools/testing/selftests/kvm/lib/kvm_util.c | 68 ++++++++++++---------- > 1 file changed, 37 insertions(+), 31 deletions(-) > > diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c > index 9a783c20dd26..d7b74f465570 100644 > --- a/tools/testing/selftests/kvm/lib/kvm_util.c > +++ b/tools/testing/selftests/kvm/lib/kvm_util.c > @@ -19,6 +19,27 @@ > #define KVM_UTIL_PGS_PER_HUGEPG 512 > #define KVM_UTIL_MIN_PFN 2 > > +#define kvm_list_add(head, new) \ > +do { \ > + if (head) \ > + head->prev = new; \ > + new->next = head; \ > + head = new; \ > +} while (0) > + > +#define kvm_list_del(head, del) \ > +do { \ > + if (del->next) \ > + del->next->prev = del->prev; \ > + if (del->prev) \ > + del->prev->next = del->next; \ > + else \ > + head = del->next; \ > +} while (0) > + > +#define kvm_list_for_each(head, iter) \ > + for (iter = head; iter; iter = iter->next) > + I'm not sure whether we should start to use a common list, e.g., tools/include/linux/list.h, if we're going to rework them after all... Even if this is preferred, maybe move to a header so kvm selftests can use it in the future outside "vcpu" struct too and this file only? Thanks, -- Peter Xu