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

Replace call_rcu() + kmem_cache_free() with kfree_rcu() to simplify
the code and reduce function size.

Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://patch.msgid.link/20260414153944.2742252-2-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
master
Fushuai Wang 2026-04-14 17:39:41 +02:00 committed by Jakub Kicinski
parent bc28831d7a
commit e5549aecdd
1 changed files with 2 additions and 7 deletions
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9
drivers/net/wireguard/allowedips.c
View File

@ -48,11 +48,6 @@ static void push_rcu(struct allowedips_node **stack,
}
}
static void node_free_rcu(struct rcu_head *rcu)
{
kmem_cache_free(node_cache, container_of(rcu, struct allowedips_node, rcu));
}
static void root_free_rcu(struct rcu_head *rcu)
{
struct allowedips_node *node, *stack[MAX_ALLOWEDIPS_DEPTH] = {
@ -271,13 +266,13 @@ static void remove_node(struct allowedips_node *node, struct mutex *lock)
if (free_parent)
child = rcu_dereference_protected(parent->bit[!(node->parent_bit_packed & 1)],
lockdep_is_held(lock));
call_rcu(&node->rcu, node_free_rcu);
kfree_rcu(node, rcu);
if (!free_parent)
return;
if (child)
child->parent_bit_packed = parent->parent_bit_packed;
*(struct allowedips_node **)(parent->parent_bit_packed & ~3UL) = child;
call_rcu(&parent->rcu, node_free_rcu);
kfree_rcu(parent, rcu);
}
static int remove(struct allowedips_node __rcu **trie, u8 bits, const u8 *key,