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netfilter: nft_set_rbtree: rename gc deactivate+erase function

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Next patch adds a cllaer that doesn't hold the priv->write lock and
will need a similar function.

Rename the existing function to make it clear that it can only
be used for opportunistic gc during insertion.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Florian Westphal 2023-10-13 14:18:15 +02:00 committed by Pablo Neira Ayuso
parent 5e3704030b
commit 8079fc30f7
1 changed files with 6 additions and 5 deletions
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11
net/netfilter/nft_set_rbtree.c
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@ -221,14 +221,15 @@ static void *nft_rbtree_get(const struct net *net, const struct nft_set *set,
return rbe;
}
static void nft_rbtree_gc_remove(struct net *net, struct nft_set *set,
struct nft_rbtree *priv,
struct nft_rbtree_elem *rbe)
static void nft_rbtree_gc_elem_remove(struct net *net, struct nft_set *set,
struct nft_rbtree *priv,
struct nft_rbtree_elem *rbe)
{
struct nft_set_elem elem = {
.priv = rbe,
};
lockdep_assert_held_write(&priv->lock);
nft_setelem_data_deactivate(net, set, &elem);
rb_erase(&rbe->node, &priv->root);
}
@ -263,7 +264,7 @@ nft_rbtree_gc_elem(const struct nft_set *__set, struct nft_rbtree *priv,
rbe_prev = NULL;
if (prev) {
rbe_prev = rb_entry(prev, struct nft_rbtree_elem, node);
nft_rbtree_gc_remove(net, set, priv, rbe_prev);
nft_rbtree_gc_elem_remove(net, set, priv, rbe_prev);
/* There is always room in this trans gc for this element,
* memory allocation never actually happens, hence, the warning
@ -277,7 +278,7 @@ nft_rbtree_gc_elem(const struct nft_set *__set, struct nft_rbtree *priv,
nft_trans_gc_elem_add(gc, rbe_prev);
}
nft_rbtree_gc_remove(net, set, priv, rbe);
nft_rbtree_gc_elem_remove(net, set, priv, rbe);
gc = nft_trans_gc_queue_sync(gc, GFP_ATOMIC);
if (WARN_ON_ONCE(!gc))
return ERR_PTR(-ENOMEM);