Re: [PATCH 01/17] mm: sl[au]b: Add knowledge of PFMEMALLOC reserve pages

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On Wed, Jun 20, 2012 at 10:35:04AM +0100, Mel Gorman wrote:
> [a.p.zijlstra@xxxxxxxxx: Original implementation]
> Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
> ---
> diff --git a/mm/slab.c b/mm/slab.c
> index e901a36..b190cac 100644
> --- a/mm/slab.c
> +++ b/mm/slab.c
> @@ -1851,6 +1984,7 @@ static void kmem_freepages(struct kmem_cache *cachep, void *addr)
>  	while (i--) {
>  		BUG_ON(!PageSlab(page));
>  		__ClearPageSlab(page);
> +		__ClearPageSlabPfmemalloc(page);
>  		page++;
>  	}
>  	if (current->reclaim_state)
> @@ -3120,16 +3254,19 @@ bad:
> diff --git a/mm/slub.c b/mm/slub.c
> index 8c691fa..43738c9 100644
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -1414,6 +1418,7 @@ static void __free_slab(struct kmem_cache *s, struct page *page)
>  		-pages);
>  
>  	__ClearPageSlab(page);
> +	__ClearPageSlabPfmemalloc(page);
>  	reset_page_mapcount(page);
>  	if (current->reclaim_state)
>  		current->reclaim_state->reclaimed_slab += pages;

So you mention a change here in v11's changelog but I don't see it.

Sebastian

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