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Re: [PATCH 1/2] Remove redundant RtlZeroMemory on CacheCreateSlab


  • To: Owen Smith <owen.smith@xxxxxxxxxx>, win-pv-devel@xxxxxxxxxxxxxxxxxxxx
  • From: Tu Dinh <ngoc-tu.dinh@xxxxxxxxxx>
  • Date: Fri, 7 Aug 2026 13:42:40 +0200
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  • Delivery-date: Fri, 07 Aug 2026 11:42:49 +0000
  • Feedback-id: default:8631fc262581453bbf619ec5b2062170:Sweego
  • List-id: Developer list for the Windows PV Drivers subproject <win-pv-devel.lists.xenproject.org>

On 06/08/2026 09:46, Owen Smith wrote:
> __CacheAllocate already returns zeroed memory, it is redundant to
> call RtlZeroMemory after allocation.
> 
> Signed-off-by: Owen Smith <owen.smith@xxxxxxxxxx>

Reviewed-by: Tu Dinh <ngoc-tu.dinh@xxxxxxxxxx>

> ---
>   src/xenbus/cache.c | 2 --
>   1 file changed, 2 deletions(-)
> 
> diff --git a/src/xenbus/cache.c b/src/xenbus/cache.c
> index eb7020d..81cd3eb 100644
> --- a/src/xenbus/cache.c
> +++ b/src/xenbus/cache.c
> @@ -424,8 +424,6 @@ CacheCreateSlab(
>       if (Slab == NULL)
>           goto fail2;
>   
> -    RtlZeroMemory(Slab, NumberOfBytes);
> -
>       Slab->Magic = XENBUS_CACHE_SLAB_MAGIC;
>       Slab->Cache = Cache;
>   



--
Ngoc Tu Dinh | Vates XCP-ng Developer

XCP-ng & Xen Orchestra - Vates solutions

web: https://vates.tech

 


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