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net: sched: using kfree_rcu() to simplify the code

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The callback function of call_rcu() just calls a kfree(), so we
can use kfree_rcu() instead of call_rcu() + callback function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun
2019-02-16 08:19:55 +00:00
committed by David S. Miller
parent 780feae7eb
commit 6e07902f56
1 changed files with 1 additions and 6 deletions
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7
net/sched/sch_api.c
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@@ -526,11 +526,6 @@ static struct qdisc_size_table *qdisc_get_stab(struct nlattr *opt,
return stab; return stab;
} }
static void stab_kfree_rcu(struct rcu_head *head)
{
kfree(container_of(head, struct qdisc_size_table, rcu));
}
void qdisc_put_stab(struct qdisc_size_table *tab) void qdisc_put_stab(struct qdisc_size_table *tab)
{ {
if (!tab) if (!tab)
@@ -538,7 +533,7 @@ void qdisc_put_stab(struct qdisc_size_table *tab)
if (--tab->refcnt == 0) { if (--tab->refcnt == 0) {
list_del(&tab->list); list_del(&tab->list);
call_rcu(&tab->rcu, stab_kfree_rcu); kfree_rcu(tab, rcu);
} }
} }
EXPORT_SYMBOL(qdisc_put_stab); EXPORT_SYMBOL(qdisc_put_stab);