linux-kernel - Re: [patch 2/2] mm, compaction: persistently skip hugetlbfs pageblocks

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Date:   Fri, 18 Aug 2017 10:49:12 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     David Rientjes <rientjes@...gle.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Mel Gorman <mgorman@...hsingularity.net>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] mm, compaction: persistently skip hugetlbfs
 pageblocks

I am getting 
mm/compaction.c: In function 'isolate_freepages_block':
mm/compaction.c:469:4: error: implicit declaration of function 'pageblock_skip_persistent' [-Werror=implicit-function-declaration]
    if (pageblock_skip_persistent(page, order)) {
    ^
mm/compaction.c:470:5: error: implicit declaration of function 'set_pageblock_skip' [-Werror=implicit-function-declaration]
     set_pageblock_skip(page);

when compaction is disabled because isolate_freepages_block is defined
also when CONFIG_COMPACTION=n. I haven't checked how to fix this
properly yet.
-- 
Michal Hocko
SUSE Labs