linux-kernel - Re: [PATCH] mm: Unsigned 'nr_pages' always larger than zero

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Message-ID: <03511a98-9e60-9426-e472-4ef6cb0d4695@suse.cz>
Date:   Thu, 5 Sep 2019 09:19:35 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     zhong jiang <zhongjiang@...wei.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     mhocko@...nel.org, anshuman.khandual@....com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Ira Weiny <ira.weiny@...el.com>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: Re: [PATCH] mm: Unsigned 'nr_pages' always larger than zero

On 9/5/19 8:18 AM, zhong jiang wrote:
> On 2019/9/5 2:48, Andrew Morton wrote:
> Firstly,  I consider the some modified method as you has writen down above.  It seems to work well.
> According to Vlastimil's feedback,   I repost the patch in v2,   changing the parameter to long to fix
> the issue.  which one do you prefer?

Please forget about my suggestion to change parameter to long, it was
wrong. New variable is better.

> Thanks,
> zhong jiang
>