[sheepdog] [PATCH v2 UPDATE] sheep: support disk more than 2T

[MORITA Kazutaka]

At Thu, 17 Jan 2013 19:18:35 +0800,
Liu Yuan wrote:
> 
> From: Liu Yuan <tailai.ly at taobao.com>
> 
> Currently we only support disk as backend storage less than 2T due to hardcoded
> 4M list buffer. The underlying object list cache already return error code when
> passed buffer is too small. Simply retry with larger buffer for this case will
> allow us enjoy however big disk is and remove this limit.
> 
> Signed-off-by: Liu Yuan <tailai.ly at taobao.com>
> ---
>  UPDATE: fix compile error
> 
>  include/sheepdog_proto.h  |    1 +
>  sheep/object_list_cache.c |    2 +-
>  sheep/recovery.c          |   61 +++++++++++++++++++++++++++------------------
>  3 files changed, 39 insertions(+), 25 deletions(-)
> 
> diff --git a/include/sheepdog_proto.h b/include/sheepdog_proto.h
> index 865f451..5942c76 100644
> --- a/include/sheepdog_proto.h
> +++ b/include/sheepdog_proto.h
> @@ -74,6 +74,7 @@
>  #define SD_RES_KILLED           0x24 /* Node is killed */
>  #define SD_RES_OID_EXIST        0x25 /* Object ID exists already */
>  #define SD_RES_AGAIN            0x26 /* Ask to try again */
> +#define SD_RES_BUFFER_SMALL     0x27 /* The buffer is too small */

Seems that we are unlikely to use this outside sheep.  If so, define
it in include/internal_proto.h.

Thanks,

Kazutaka