Re: [PATCH v2 3/7] mm/mempolicy: correct putback method for isolate pages if failed

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On Mon, Dec 09, 2013 at 06:10:44PM +0900, Joonsoo Kim wrote:
>queue_pages_range() isolates hugetlbfs pages and putback_lru_pages() can't
>handle these. We should change it to putback_movable_pages().
>
>Naoya said that it is worth going into stable, because it can break
>in-use hugepage list.
>
>Cc: <stable@xxxxxxxxxxxxxxx> # 3.12
>Reviewed-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
>Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
>

Reviewed-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>

>diff --git a/mm/mempolicy.c b/mm/mempolicy.c
>index eca4a31..6d04d37 100644
>--- a/mm/mempolicy.c
>+++ b/mm/mempolicy.c
>@@ -1318,7 +1318,7 @@ static long do_mbind(unsigned long start, unsigned long len,
> 		if (nr_failed && (flags & MPOL_MF_STRICT))
> 			err = -EIO;
> 	} else
>-		putback_lru_pages(&pagelist);
>+		putback_movable_pages(&pagelist);
>
> 	up_write(&mm->mmap_sem);
>  mpol_out:
>-- 
>1.7.9.5
>
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