[Sheepdog] [PATCH 1/2] object cache: fix cow write

[Liu Yuan]

On 04/16/2012 10:16 PM, Liu Yuan wrote:

> From: Liu Yuan <tailai.ly at taobao.com>
> 
> We should bypass object cache for COW object writing, because
> we simply shouldn't create COW object without fetching it first
> from the cluster storage
> 
> Signed-off-by: Liu Yuan <tailai.ly at taobao.com>
> ---
>  sheep/store.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/sheep/store.c b/sheep/store.c
> index 1a2deb7..d26aded 100644
> --- a/sheep/store.c
> +++ b/sheep/store.c
> @@ -869,7 +869,8 @@ static int bypass_object_cache(struct sd_obj_req *hdr)
>  	/*
>  	 * For vmstate && vdi_attr object, we don't do caching
>  	 */
> -	if (is_vmstate_obj(oid) || is_vdi_attr_obj(oid))
> +	if (is_vmstate_obj(oid) || is_vdi_attr_obj(oid) ||
> +	    hdr->flags & SD_FLAG_CMD_COW)
>  		return 1;
>  	return 0;
>  }


Applied both

Thanks,
Yuan