Re: [PATCH] mm, hugetlb: Fix a double unlock bug in alloc_surplus_huge_page()

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On Tue 09-01-18 23:06:00, Dan Carpenter wrote:
> We aren't holding the hugetlb_lock so there is no need to unlock.
> 
> Fixes: b27f11e5e675 ("mm, hugetlb: get rid of surplus page accounting tricks")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

Ups, a left over after refactoring. Andrew, could you fold this into
mm-hugetlb-further-simplify-hugetlb-allocation-api.patch please?
 
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index ffcae114ceed..742a929f2311 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -1567,7 +1567,7 @@ static struct page *alloc_surplus_huge_page(struct hstate *h, gfp_t gfp_mask,
>  
>  	page = alloc_fresh_huge_page(h, gfp_mask, nid, nmask);
>  	if (!page)
> -		goto out_unlock;
> +		return NULL;
>  
>  	spin_lock(&hugetlb_lock);
>  	/*

-- 
Michal Hocko
SUSE Labs

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