Re: [Xen-devel] [PATCH] arm/mm: remove unused p2m_refcount in page_info

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Thu, 23 Mar 2017, Wei Liu wrote:
> The code which used that field has been deleted. Found by code
> inspection.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>

> ---
> Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>
> Cc: Julien Grall <julien.grall@xxxxxxx>
> 
> Compile test only
> ---
>  xen/include/asm-arm/mm.h | 6 ------
>  1 file changed, 6 deletions(-)
> 
> diff --git a/xen/include/asm-arm/mm.h b/xen/include/asm-arm/mm.h
> index 60ccbf3769..4892155596 100644
> --- a/xen/include/asm-arm/mm.h
> +++ b/xen/include/asm-arm/mm.h
> @@ -32,12 +32,6 @@ struct page_info
>          struct {
>              /* Type reference count and various PGT_xxx flags and fields. */
>              unsigned long type_info;
> -            /*
> -             * Reference count for page table used in the P2M code.
> -             * The counter is protected by the p2m->lock of the
> -             * associated domain.
> -             */
> -            unsigned long p2m_refcount;
>          } inuse;
>          /* Page is on a free list: ((count_info & PGC_count_mask) == 0). */
>          struct {
> -- 
> 2.11.0
> 

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