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cgroup: make ->pre_destroy() return void

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All ->pre_destory() implementations return 0 now, which is the only
allowed return value.  Make it return void.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
Tejun Heo 2012-11-05 09:16:59 -08:00
commit bcf6de1b91
5 changed files with 5 additions and 9 deletions
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2
include/linux/cgroup.h
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@ -436,7 +436,7 @@ int cgroup_taskset_size(struct cgroup_taskset *tset);
struct cgroup_subsys {
struct cgroup_subsys_state *(*create)(struct cgroup *cgrp);
int (*pre_destroy)(struct cgroup *cgrp);
void (*pre_destroy)(struct cgroup *cgrp);
void (*destroy)(struct cgroup *cgrp);
int (*can_attach)(struct cgroup *cgrp, struct cgroup_taskset *tset);
void (*cancel_attach)(struct cgroup *cgrp, struct cgroup_taskset *tset);