1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Sun, 15 Dec 2019 22:08:04 +0100
Subject: [PATCH] wireguard: allowedips: use kfree_rcu() instead of call_rcu()
commit d89ee7d5c73af15c1c6f12b016cdf469742b5726 upstream.
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>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
drivers/net/wireguard/allowedips.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
--- a/drivers/net/wireguard/allowedips.c
+++ b/drivers/net/wireguard/allowedips.c
@@ -31,11 +31,6 @@ static void copy_and_assign_cidr(struct
#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 a
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);
}
}
|
