Re: [PATCH RESEND] Btrfs-progs: fix compile warning in btrfs_free_block_groups()

[Stefan Behrens <sbehrens@giantdisaster.de>]

On Thu,  4 Jul 2013 00:24:45 +0800, Wang Shilong wrote:
> From: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
> 
> extent-tree.c: In function 'btrfs_free_block_groups':
> extent-tree.c:3189:12: warning: cast to pointer from
> integer of different size [-Wint-to-pointer-cast]
> 
> Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
> ---
>  extent-tree.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/extent-tree.c b/extent-tree.c
> index b0cfe0a..7561bbb 100644
> --- a/extent-tree.c
> +++ b/extent-tree.c
> @@ -3186,7 +3186,8 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
>  			break;
>  		ret = get_state_private(&info->block_group_cache, start, &ptr);
>  		if (!ret) {
> -			cache = (struct btrfs_block_group_cache *)ptr;
> +			cache = (struct btrfs_block_group_cache *)
> +				(unsigned long)ptr;

Shouldn't this be "(uintptr_t)" instead of "(unsigned long)"?