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wireguard: allowedips: use kfree_rcu() instead of call_rcu()

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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: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wei Yongjun 2019-12-15 22:08:04 +01:00 committed by David S. Miller
parent 43967b6ff9
commit d89ee7d5c7
1 changed files with 1 additions and 6 deletions
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7
drivers/net/wireguard/allowedips.c
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@ -31,11 +31,6 @@ static void copy_and_assign_cidr(struct allowedips_node *node, const u8 *src,
#define CHOOSE_NODE(parent, key) \
parent->bit[(key[parent->bit_at_a] >> parent->bit_at_b) & 1]
static void node_free_rcu(struct rcu_head *rcu)
{
kfree(container_of(rcu, struct allowedips_node, rcu));
}
static void push_rcu(struct allowedips_node **stack,
struct allowedips_node __rcu *p, unsigned int *len)
{
@ -112,7 +107,7 @@ static void walk_remove_by_peer(struct allowedips_node __rcu **top,
if (!node->bit[0] || !node->bit[1]) {
rcu_assign_pointer(*nptr, DEREF(
&node->bit[!REF(node->bit[0])]));
call_rcu(&node->rcu, node_free_rcu);
kfree_rcu(node, rcu);
node = DEREF(nptr);
}
}