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ns_cgroup: remove unused spinlock

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I happened to find the spinlock in struct ns_cgroup is never used.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Li Zefan 2009-01-07 18:07:34 -08:00 committed by Linus Torvalds
parent 75139b8274
commit cae7a366f7
1 changed files with 0 additions and 2 deletions
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2
kernel/ns_cgroup.c
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@ -13,7 +13,6 @@
struct ns_cgroup {
struct cgroup_subsys_state css;
spinlock_t lock;
};
struct cgroup_subsys ns_subsys;
@ -84,7 +83,6 @@ static struct cgroup_subsys_state *ns_create(struct cgroup_subsys *ss,
ns_cgroup = kzalloc(sizeof(*ns_cgroup), GFP_KERNEL);
if (!ns_cgroup)
return ERR_PTR(-ENOMEM);
spin_lock_init(&ns_cgroup->lock);
return &ns_cgroup->css;
}