From 1345b1ac57a1b85d73912bd13c2bad5f9f26df91 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 22 Aug 2016 23:01:29 +0000 Subject: [PATCH] xen-netback: using kfree_rcu() to simplify the code 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 Signed-off-by: David S. Miller --- drivers/net/xen-netback/hash.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/net/xen-netback/hash.c b/drivers/net/xen-netback/hash.c index 282b16d8093a..e8c5dddc54ba 100644 --- a/drivers/net/xen-netback/hash.c +++ b/drivers/net/xen-netback/hash.c @@ -32,15 +32,6 @@ #include #include -static void xenvif_del_hash(struct rcu_head *rcu) -{ - struct xenvif_hash_cache_entry *entry; - - entry = container_of(rcu, struct xenvif_hash_cache_entry, rcu); - - kfree(entry); -} - static void xenvif_add_hash(struct xenvif *vif, const u8 *tag, unsigned int len, u32 val) { @@ -76,7 +67,7 @@ static void xenvif_add_hash(struct xenvif *vif, const u8 *tag, if (++vif->hash.cache.count > xenvif_hash_cache_size) { list_del_rcu(&oldest->link); vif->hash.cache.count--; - call_rcu(&oldest->rcu, xenvif_del_hash); + kfree_rcu(oldest, rcu); } } @@ -114,7 +105,7 @@ static void xenvif_flush_hash(struct xenvif *vif) list_for_each_entry_rcu(entry, &vif->hash.cache.list, link) { list_del_rcu(&entry->link); vif->hash.cache.count--; - call_rcu(&entry->rcu, xenvif_del_hash); + kfree_rcu(entry, rcu); } spin_unlock_irqrestore(&vif->hash.cache.lock, flags); -- 2.20.1