diff options
author | Jason A. Donenfeld <Jason@zx2c4.com> | 2024-06-13 13:59:10 +0200 |
---|---|---|
committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2024-06-13 13:59:10 +0200 |
commit | e3fdcc94017f685a7908ea33b6d9ffdcffea8d39 (patch) | |
tree | d99f9c75d146d9a7c51c2eef2400556b6f1d4359 /drivers/net | |
parent | b21bc5f7abcb27604e2b159c0ceb6d026826bf30 (diff) | |
download | wireguard-linux-trimmed-stable.tar.gz wireguard-linux-trimmed-stable.zip |
Since SLOB was removed, it is not necessary to use call_rcu() when the
callback only performs kmem_cache_free(), so we can use kfree_rcu()
directly. kfree_rcu() happens in batches and doesn't need to wait on
rcu_barrier() to complete, so also remove the barrier.
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to '')
-rw-r--r-- | drivers/net/wireguard/allowedips.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/net/wireguard/allowedips.c b/drivers/net/wireguard/allowedips.c index 0ba714c..c95f693 100644 --- a/drivers/net/wireguard/allowedips.c +++ b/drivers/net/wireguard/allowedips.c @@ -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] = { @@ -330,13 +325,13 @@ void wg_allowedips_remove_by_peer(struct allowedips *table, 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) continue; 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); } } @@ -382,7 +377,6 @@ int __init wg_allowedips_slab_init(void) void wg_allowedips_slab_uninit(void) { - rcu_barrier(); kmem_cache_destroy(node_cache); } |