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cgroup,rcu: convert call_rcu(free_cgroup_rcu) to kfree_rcu() 

The rcu callback free_cgroup_rcu() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(free_cgroup_rcu).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Lai Jiangshan 2011-03-15 17:55:16 +08:00 committed by Paul E. McKenney
parent 30088ad815
commit f2da1c40dc
1 changed files with 1 additions and 8 deletions
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9
kernel/cgroup.c
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@ -806,13 +806,6 @@ static int cgroup_call_pre_destroy(struct cgroup *cgrp)
return ret;
}
static void free_cgroup_rcu(struct rcu_head *obj)
{
struct cgroup *cgrp = container_of(obj, struct cgroup, rcu_head);
kfree(cgrp);
}
static void cgroup_diput(struct dentry *dentry, struct inode *inode)
{
/* is dentry a directory ? if so, kfree() associated cgroup */
@ -850,7 +843,7 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode)
*/
BUG_ON(!list_empty(&cgrp->pidlists));
call_rcu(&cgrp->rcu_head, free_cgroup_rcu);
kfree_rcu(cgrp, rcu_head);
}
iput(inode);
}