Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Wed, 14 Apr 2021 14:58:42 +0200
From:   Michal Hocko <mhocko@suse.com>
To:     Feng Tang <feng.tang@intel.com>
Cc:     linux-mm@kvack.org, linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Andrea Arcangeli <aarcange@redhat.com>,
        David Rientjes <rientjes@google.com>,
        Mel Gorman <mgorman@techsingularity.net>,
        Mike Kravetz <mike.kravetz@oracle.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        Vlastimil Babka <vbabka@suse.cz>,
        Dave Hansen <dave.hansen@intel.com>,
        Ben Widawsky <ben.widawsky@intel.com>,
        Andi Kleen <ak@linux.intel.com>,
        Dan Williams <dan.j.williams@intel.com>
Subject: Re: [PATCH v4 06/13] mm/mempolicy: kill v.preferred_nodes
Message-ID: <YHbnAii50shoetsp@dhcp22.suse.cz>
References: <1615952410-36895-1-git-send-email-feng.tang@intel.com>
 <1615952410-36895-7-git-send-email-feng.tang@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1615952410-36895-7-git-send-email-feng.tang@intel.com>
Precedence: bulk

On Wed 17-03-21 11:40:03, Feng Tang wrote:
> From: Ben Widawsky <ben.widawsky@intel.com>
> 
> Now that preferred_nodes is just a mask, and policies are mutually
> exclusive, there is no reason to have a separate mask.
> 
> This patch is optional. It definitely helps clean up code in future
> patches, but there is no functional difference to leaving it with the
> previous name. I do believe it helps demonstrate the exclusivity of the
> fields.

Yeah, let's just do it after the whole thing is merged. The separation
helps a bit to review the code at this stage because it is so much
easier to grep for preferred_nodes than nodes.
-- 
Michal Hocko
SUSE Labs