From: Florian Westphal <fw@xxxxxxxxx>
[ Upstream commit 28b3a4270c0fc064557e409111f2a678e64b6fa7 ]
no need, just use a simple boolean to indicate we want to reap all
entries.
Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
Signed-off-by: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/netfilter/xt_hashlimit.c | 22 ++++------------------
1 file changed, 4 insertions(+), 18 deletions(-)
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index 1b68a131083c2..7a2c4b8408c49 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -358,21 +358,7 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg,
return 0;
}
-static bool select_all(const struct xt_hashlimit_htable *ht,
- const struct dsthash_ent *he)
-{
- return true;
-}
-
-static bool select_gc(const struct xt_hashlimit_htable *ht,
- const struct dsthash_ent *he)
-{
- return time_after_eq(jiffies, he->expires);
-}
-
-static void htable_selective_cleanup(struct xt_hashlimit_htable *ht,
- bool (*select)(const struct xt_hashlimit_htable *ht,
- const struct dsthash_ent *he))
+static void htable_selective_cleanup(struct xt_hashlimit_htable *ht, bool select_all)
{
unsigned int i;
@@ -382,7 +368,7 @@ static void htable_selective_cleanup(struct xt_hashlimit_htable *ht,
spin_lock_bh(&ht->lock);
hlist_for_each_entry_safe(dh, n, &ht->hash[i], node) {
- if ((*select)(ht, dh))
+ if (time_after_eq(jiffies, dh->expires) || select_all)
dsthash_free(ht, dh);
}
spin_unlock_bh(&ht->lock);
@@ -396,7 +382,7 @@ static void htable_gc(struct work_struct *work)
ht = container_of(work, struct xt_hashlimit_htable, gc_work.work);
- htable_selective_cleanup(ht, select_gc);
+ htable_selective_cleanup(ht, false);
queue_delayed_work(system_power_efficient_wq,
&ht->gc_work, msecs_to_jiffies(ht->cfg.gc_interval));
@@ -420,7 +406,7 @@ static void htable_destroy(struct xt_hashlimit_htable *hinfo)
{
cancel_delayed_work_sync(&hinfo->gc_work);
htable_remove_proc_entry(hinfo);
- htable_selective_cleanup(hinfo, select_all);
+ htable_selective_cleanup(hinfo, true);
kfree(hinfo->name);
vfree(hinfo);
}
--
2.20.1
