Re: [PATCH 8/8] cgroup: make ->pre_destroy() return void

[Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

On Tue, Oct 30, 2012 at 09:22:45PM -0700, Tejun Heo wrote:
> All ->pre_destory() implementations return 0 now, which is the only
> allowed return value.  Make it return void.
> 
> Signed-off-by: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
> Cc: Balbir Singh <bsingharora-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
> Cc: Vivek Goyal <vgoyal-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  block/blk-cgroup.c     | 3 +--
>  include/linux/cgroup.h | 2 +-
>  kernel/cgroup.c        | 2 +-
>  mm/hugetlb_cgroup.c    | 4 +---
>  mm/memcontrol.c        | 3 +--
>  5 files changed, 5 insertions(+), 9 deletions(-)
> 
> diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
> index f3b44a6..a7816f3 100644
> --- a/block/blk-cgroup.c
> +++ b/block/blk-cgroup.c
> @@ -600,7 +600,7 @@ struct cftype blkcg_files[] = {
>   *
>   * This is the blkcg counterpart of ioc_release_fn().
>   */
> -static int blkcg_pre_destroy(struct cgroup *cgroup)
> +static void blkcg_pre_destroy(struct cgroup *cgroup)
>  {
>  	struct blkcg *blkcg = cgroup_to_blkcg(cgroup);
>  
> @@ -622,7 +622,6 @@ static int blkcg_pre_destroy(struct cgroup *cgroup)
>  	}
>  
>  	spin_unlock_irq(&blkcg->lock);
> -	return 0;

Looks good from blk-cgroup perspective. ACK for these bits.

Thanks
Vivek