linux-kernel - Re: [PATCH -mmotm] mm: fix kmemcheck.c build errors

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Date:	Sun, 31 Aug 2014 15:36:18 +0400
From:	Andrey Ryabinin <ryabinin.a.a@...il.com>
To:	Randy Dunlap <rdunlap@...radead.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	linux-next@...r.kernel.org, sfr@...b.auug.org.au, mhocko@...e.cz,
	Pekka Enberg <penberg@...nel.org>,
	Vegard Nossum <vegardno@....uio.no>
Subject: Re: [PATCH -mmotm] mm: fix kmemcheck.c build errors

2014-08-30 5:48 GMT+04:00 Randy Dunlap <rdunlap@...radead.org>:
> From: Randy Dunlap <rdunlap@...radead.org>
>
> Add header file to fix kmemcheck.c build errors:
>
> ../mm/kmemcheck.c:70:7: error: dereferencing pointer to incomplete type
> ../mm/kmemcheck.c:83:15: error: dereferencing pointer to incomplete type
> ../mm/kmemcheck.c:95:8: error: dereferencing pointer to incomplete type
> ../mm/kmemcheck.c:95:21: error: dereferencing pointer to incomplete type
>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> ---
>  mm/kmemcheck.c |    1 +
>  1 file changed, 1 insertion(+)
>
> Index: mmotm-2014-0829-1515/mm/kmemcheck.c
> ===================================================================
> --- mmotm-2014-0829-1515.orig/mm/kmemcheck.c
> +++ mmotm-2014-0829-1515/mm/kmemcheck.c
> @@ -2,6 +2,7 @@
>  #include <linux/mm_types.h>
>  #include <linux/mm.h>
>  #include <linux/slab.h>
> +#include <linux/slab_def.h>

This will work only for CONFIG_SLAB=y. struct kmem_cache definition
was moved to internal header [*],
so you need to include it here:
#include "slab.h"

[*] http://ozlabs.org/~akpm/mmotm/broken-out/mm-slab_common-move-kmem_cache-definition-to-internal-header.patch

>  #include <linux/kmemcheck.h>
>
>  void kmemcheck_alloc_shadow(struct page *page, int order, gfp_t flags, int node)
>


-- 
Best regards,
Andrey Ryabinin
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