From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1751384AbdJCWgr (ORCPT <rfc822;w@1wt.eu>);
        Tue, 3 Oct 2017 18:36:47 -0400
Received: from mail-it0-f68.google.com ([209.85.214.68]:52013 "EHLO
        mail-it0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751090AbdJCWgq (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 3 Oct 2017 18:36:46 -0400
X-Google-Smtp-Source: AOwi7QAnfgOnMFiaTTU8GZoaeNetM0KjSIeqBBFsCBmSmXmwQv8PqJcI5rKGziSVqEe+ZWlWH6r9SA==
Date: Tue, 3 Oct 2017 15:36:42 -0700
From: Tejun Heo <tj@kernel.org>
To: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Christoph Lameter <cl@linux.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm/percpu.c: use smarter memory allocation for struct
 pcpu_alloc_info
Message-ID: <20171003223642.GN3301751@devbig577.frc2.facebook.com>
References: <nycvar.YSQ.7.76.1710031638450.5407@knanqh.ubzr>
 <20171003210540.GM3301751@devbig577.frc2.facebook.com>
 <nycvar.YSQ.7.76.1710031731130.5407@knanqh.ubzr>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <nycvar.YSQ.7.76.1710031731130.5407@knanqh.ubzr>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hello,

On Tue, Oct 03, 2017 at 06:29:49PM -0400, Nicolas Pitre wrote:
> I'm not sure i understand that code fully, but maybe the following patch 
> could be a better fit:
> 
> ----- >8
> Subject: [PATCH] percpu: don't forget to free the temporary struct pcpu_alloc_info

So, IIRC, the error path is either boot fail or some serious bug in
arch code.  It really doesn't matter whether we free a page or not.

Thanks.

-- 
tejun