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Date:   Tue, 15 Sep 2020 17:48:55 -0700
From:   Andrew Morton <akpm@linux-foundation.org>
To:     <yanfei.xu@windriver.com>
Cc:     <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm/page_alloc.c: variable type of 'progress' should be
 'unsigned long'
Message-Id: <20200915174855.822d866316948aadb8193e9b@linux-foundation.org>
In-Reply-To: <20200915104620.20582-1-yanfei.xu@windriver.com>
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On Tue, 15 Sep 2020 18:46:20 +0800 <yanfei.xu@windriver.com> wrote:

> From: Yanfei Xu <yanfei.xu@windriver.com>
> 
> try_to_free_pages returns the number of pages reclaimed, and the type of
> returns is 'unsigned long'. So we should use a matched type for storing
> it.
> 

__perform_reclaim() returns an int, so this change is fairly pointless.

However __perform_reclaim()'s single caller expects it to return
unsigned long, so including that change in this patch would make more
sense.