linux-kernel - Re: [RFC] mm/migrate: Add new migration reason MR

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Message-Id: <7c99fbcd-bb9f-38ed-fbf1-e5481c59968c@linux.vnet.ibm.com>
Date:   Tue, 30 Jan 2018 10:46:32 +0530
From:   Anshuman Khandual <khandual@...ux.vnet.ibm.com>
To:     Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:     akpm@...ux-foundation.org, mhocko@...e.com
Subject: Re: [RFC] mm/migrate: Add new migration reason MR_HUGETLB

On 01/30/2018 08:37 AM, Anshuman Khandual wrote:
> @@ -7621,8 +7622,13 @@ static int __alloc_contig_migrate_range(struct compact_control *cc,
>  							&cc->migratepages);
>  		cc->nr_migratepages -= nr_reclaimed;
>  
> +		if (migratetype == MIGRATE_CMA)
> +			migrate_reason = MR_CMA;
> +		else
> +			migrate_reason = MR_HUGETLB;
> +
>  		ret = migrate_pages(&cc->migratepages, new_page_alloc_contig,

Oops, this is on top of the changes from the other RFC regarding migration
helper functions.