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Date:   Thu, 25 Mar 2021 12:05:25 +0000
From:   Matthew Wilcox <willy@infradead.org>
To:     Mel Gorman <mgorman@techsingularity.net>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Chuck Lever <chuck.lever@oracle.com>,
        Jesper Dangaard Brouer <brouer@redhat.com>,
        Christoph Hellwig <hch@infradead.org>,
        Alexander Duyck <alexander.duyck@gmail.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Ilias Apalodimas <ilias.apalodimas@linaro.org>,
        LKML <linux-kernel@vger.kernel.org>,
        Linux-Net <netdev@vger.kernel.org>,
        Linux-MM <linux-mm@kvack.org>,
        Linux-NFS <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 2/9] mm/page_alloc: Add a bulk page allocator
Message-ID: <20210325120525.GU1719932@casper.infradead.org>
References: <20210325114228.27719-1-mgorman@techsingularity.net>
 <20210325114228.27719-3-mgorman@techsingularity.net>
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In-Reply-To: <20210325114228.27719-3-mgorman@techsingularity.net>
Precedence: bulk

On Thu, Mar 25, 2021 at 11:42:21AM +0000, Mel Gorman wrote:
> +int __alloc_pages_bulk(gfp_t gfp, int preferred_nid,
> +				nodemask_t *nodemask, int nr_pages,
> +				struct list_head *list);
> +
> +/* Bulk allocate order-0 pages */
> +static inline unsigned long
> +alloc_pages_bulk(gfp_t gfp, unsigned long nr_pages, struct list_head *list)
> +{
> +	return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, list);

Discrepancy in the two return types here.  Suspect they should both
be 'unsigned int' so there's no question about "can it return an errno".

>  
> +/*

If you could make that "/**" instead ...