On Tue, 21 Jun 2011 21:11:41 -0700 (PDT)
David Miller <davem@xxxxxxxxxxxxx> wrote:
>
> Commit 37573e8c718277103f61f03741bdc5606d31b07e ("memcg: fix
> init_page_cgroup nid with sparsemem") broke the build on sparc64
> because this is the first time the page_end_pfn() interface has
> actually been used in a long time, and sparc64's definition
> referes to ->node_end_pfn which doesn't even exist.
>
> While fixing this I noticed powerpc had the same problem, and
> m32r's version had an off-by-one error.
>
> These are all fixed here.
>
> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Sorry, a patch is now queued in mmotm, as
http://marc.info/?l=linux-mm-commits&m=130834703319994&w=2
Thanks,
-Kame
>
> diff --git a/arch/m32r/include/asm/mmzone.h b/arch/m32r/include/asm/mmzone.h
> index 9f3b5ac..31238e0 100644
> --- a/arch/m32r/include/asm/mmzone.h
> +++ b/arch/m32r/include/asm/mmzone.h
> @@ -18,7 +18,7 @@ extern struct pglist_data *node_data[];
> #define node_end_pfn(nid) \
> ({ \
> pg_data_t *__pgdat = NODE_DATA(nid); \
> - __pgdat->node_start_pfn + __pgdat->node_spanned_pages - 1; \
> + __pgdat->node_start_pfn + __pgdat->node_spanned_pages; \
> })
>
> #define pmd_page(pmd) (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
> diff --git a/arch/powerpc/include/asm/mmzone.h b/arch/powerpc/include/asm/mmzone.h
> index fd3fd58..86bf6ac 100644
> --- a/arch/powerpc/include/asm/mmzone.h
> +++ b/arch/powerpc/include/asm/mmzone.h
> @@ -43,7 +43,8 @@ u64 memory_hotplug_max(void);
> */
>
> #define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
> -#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn)
> +#define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
> + NODE_DATA(nid)->node_spanned_pages)
>
> #else
> #define memory_hotplug_max() memblock_end_of_DRAM()
> diff --git a/arch/sparc/include/asm/mmzone.h b/arch/sparc/include/asm/mmzone.h
> index e8c6487..a321b04 100644
> --- a/arch/sparc/include/asm/mmzone.h
> +++ b/arch/sparc/include/asm/mmzone.h
> @@ -9,7 +9,8 @@ extern struct pglist_data *node_data[];
>
> #define NODE_DATA(nid) (node_data[nid])
> #define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
> -#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn)
> +#define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
> + NODE_DATA(nid)->node_spanned_pages)
>
> extern int numa_cpu_lookup_table[];
> extern cpumask_t numa_cpumask_lookup_table[];
> --
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