Re: [PATCH 08/23] cgroup: pass around cgroup_subsys_state insteadof cgroup in subsystem methods

[Li Zefan]

> @@ -4298,7 +4308,7 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
>  	for_each_root_subsys(root, ss) {
>  		struct cgroup_subsys_state *css;
>  
> -		css = ss->css_alloc(cgrp);
> +		css = ss->css_alloc(parent->subsys[ss->subsys_id]);

As this patchset is based on for-3.12 branch, which lacks the fix in for-3.11,
so the css_alloc() in that bug fix is not converted.

>  		if (IS_ERR(css)) {
>  			err = PTR_ERR(css);
>  			goto err_free_all;
> @@ -4377,7 +4387,7 @@ err_free_all:
>  
>  		if (css) {
>  			percpu_ref_cancel_init(&css->refcnt);
> -			ss->css_free(cgrp);
> +			ss->css_free(css);
>  		}
>  	}
>  	mutex_unlock(&cgroup_mutex);

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