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Date: Mon, 9 Dec 2013 16:17:32 +0000 From: Christoph Lameter <cl@...ux.com> To: Joonsoo Kim <iamjoonsoo.kim@....com> cc: Andrew Morton <akpm@...ux-foundation.org>, Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>, Rafael Aquini <aquini@...hat.com>, Naoya Horiguchi <n-horiguchi@...jp.nec.com>, Joonsoo Kim <js1304@...il.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org, Vlastimil Babka <vbabka@...e.cz>, Zhang Yanfei <zhangyanfei@...fujitsu.com> Subject: Re: [PATCH v2 2/7] mm/migrate: correct failure handling if !hugepage_migration_support() On Mon, 9 Dec 2013, Joonsoo Kim wrote: > We should remove the page from the list if we fail without ENOSYS, > since migrate_pages() consider error cases except -ENOMEM and -EAGAIN > as permanent failure and it assumes that the page would be removed from > the list. Without this patch, we could overcount number of failure. Ok what does the patch do about this? I dont see any modifications. Remove this part of the description? > In addition, we should put back the new hugepage if > !hugepage_migration_support(). If not, we would leak hugepage memory. Ok looks like that is fixed by this patch. Acked-by: Christoph Lameter <cl@...ux.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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