[sheepdog] [PATCH] object list cache: cleanup object list cache when format cluster

[Hitoshi Mitake]

At Fri, 15 May 2015 12:56:43 +0800,
Meng Lingkun wrote:
> 
> Cleanup the object list cache when format cluster to keep data
> consistency.
> 
> Signed-off-by: Meng Lingkun <menglingkun at cmss.chinamobile.com>
> ---
>  sheep/object_list_cache.c |    8 ++++++++
>  sheep/ops.c               |    1 +
>  2 files changed, 9 insertions(+), 0 deletions(-)
> 
> diff --git a/sheep/object_list_cache.c b/sheep/object_list_cache.c
> index b9acaa0..86642cd 100644
> --- a/sheep/object_list_cache.c
> +++ b/sheep/object_list_cache.c
> @@ -196,3 +196,11 @@ int objlist_cache_cleanup(uint32_t vid)
>  
>  	return SD_RES_SUCCESS;
>  }
> +
> +void objlist_cache_format(void)
> +{
> +	sd_write_lock(&obj_list_cache.lock);
> +	rb_destroy(&obj_list_cache.root, struct objlist_cache_entry, node);
> +	INIT_RB_ROOT(&obj_list_cache.root);
> +	sd_rw_unlock(&obj_list_cache.lock);
> +}

You need to add a declaration of the above function to sheep_priv.h.

Thanks,
Hitoshi

> diff --git a/sheep/ops.c b/sheep/ops.c
> index c6065d5..7b92f8c 100644
> --- a/sheep/ops.c
> +++ b/sheep/ops.c
> @@ -342,6 +342,7 @@ static int cluster_make_fs(const struct sd_req *req, struct sd_rsp *rsp,
>  	memset(sys->vdi_inuse, 0, sizeof(sys->vdi_inuse));
>  	memset(sys->vdi_deleted, 0, sizeof(sys->vdi_deleted));
>  	clean_vdi_state();
> +	objlist_cache_format();
>  
>  	sys->cinfo.epoch = 0;
>  
> -- 
> 1.7.1
> 
> 
> 
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