On 2013/6/13 5:03, Tejun Heo wrote:
> * __css_get() isn't used by anyone. Fold it into css_get().
>
> * Add proper function comments to all css reference functions.
>
> This patch is purely cosmetic.
>
> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx>
> ---
> include/linux/cgroup.h | 48 ++++++++++++++++++++++++------------------------
> 1 file changed, 24 insertions(+), 24 deletions(-)
>
> diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
> index 0e32855..7b16882 100644
> --- a/include/linux/cgroup.h
> +++ b/include/linux/cgroup.h
> @@ -94,33 +94,31 @@ enum {
> CSS_ONLINE = (1 << 1), /* between ->css_online() and ->css_offline() */
> };
>
> -/* Caller must verify that the css is not for root cgroup */
> -static inline void __css_get(struct cgroup_subsys_state *css, int count)
> -{
> - atomic_add(count, &css->refcnt);
> -}
> -
> -/*
> - * Call css_get() to hold a reference on the css; it can be used
> - * for a reference obtained via:
> - * - an existing ref-counted reference to the css
> - * - task->cgroups for a locked task
> +/**
> + * css_get - obtain a reference on the specified css
> + * @css: taget css
s/taget/target
> + *
> + * The caller must already have a reference.
> */
> -
> static inline void css_get(struct cgroup_subsys_state *css)
> {
> /* We don't need to reference count the root state */
> if (!(css->flags & CSS_ROOT))
> - __css_get(css, 1);
> + atomic_inc(&css->refcnt);
> }
>
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