From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752820AbcE1MDb (ORCPT ); Sat, 28 May 2016 08:03:31 -0400 Received: from mail-pa0-f66.google.com ([209.85.220.66]:36280 "EHLO mail-pa0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752515AbcE1MDE (ORCPT ); Sat, 28 May 2016 08:03:04 -0400 Date: Sat, 28 May 2016 20:02:59 +0800 From: Minfei Huang To: Paolo Bonzini Cc: Andy Lutomirski , Borislav Petkov , Andrew Lutomirski , "H. Peter Anvin" , Ingo Molnar , Thomas Gleixner , X86 ML , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 3/3] pvclock: Add a new wrapper function to only get variable flags Message-ID: <20160528120259.GA7163@dhcp-128-8.nay.redhat.com> References: <1464329832-4638-1-git-send-email-mnghuan@gmail.com> <1464329832-4638-3-git-send-email-mnghuan@gmail.com> <9d18b1a3-90b4-6969-6bda-b7556d8264a6@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <9d18b1a3-90b4-6969-6bda-b7556d8264a6@redhat.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/27/16 at 06:06P, Paolo Bonzini wrote: > > > On 27/05/2016 17:40, Andy Lutomirski wrote: > > On Thu, May 26, 2016 at 11:17 PM, Minfei Huang wrote: > >> There is a generic function __pvclock_read_cycles to be used to get both > >> flags and cycles. For function pvclock_read_flags, it's useless to get > >> cycles value. To make this function be more effective, add a new wrapper > >> function to only get variable flags. > > > > Why not just get rid of this function entirely? > > I agree. If you want to abstract the retry logic, perhaps you can add Hmm, I will get rid of pvclock_read_flags, and repost it. Thanks Minfei > pvclock_read_{begin,retry} functions like seqlock_read_{begin,retry}? > > Thanks, > > Paolo