From: Wei Yongjun <weiyongj...@huawei.com>
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 <weiyongj...@huawei.com>
---
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 282b16d..e8c5ddd 100644
--- a/drivers/net/xen-netback/hash.c
+++ b/drivers/net/xen-netback/hash.c
@@ -32,15 +32,6 @@
#include <linux/vmalloc.h>
#include <linux/rculist.h>
-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);
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