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Subject[PATCH 01/36] net,rcu: convert call_rcu(free_dm_hw_stat) to kfree_rcu()


The rcu callback free_dm_hw_stat() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(free_dm_hw_stat).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
net/core/drop_monitor.c | 12 ++----------
1 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 36e603c..32365e7 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -207,14 +207,6 @@ static void trace_napi_poll_hit(void *ignore, struct napi_struct *napi)
rcu_read_unlock();
}

-
-static void free_dm_hw_stat(struct rcu_head *head)
-{
- struct dm_hw_stat_delta *n;
- n = container_of(head, struct dm_hw_stat_delta, rcu);
- kfree(n);
-}
-
static int set_all_monitor_traces(int state)
{
int rc = 0;
@@ -245,7 +237,7 @@ static int set_all_monitor_traces(int state)
list_for_each_entry_safe(new_stat, temp, &hw_stats_list, list) {
if (new_stat->dev == NULL) {
list_del_rcu(&new_stat->list);
- call_rcu(&new_stat->rcu, free_dm_hw_stat);
+ kfree_rcu(new_stat, rcu);
}
}
break;
@@ -314,7 +306,7 @@ static int dropmon_net_event(struct notifier_block *ev_block,
new_stat->dev = NULL;
if (trace_state == TRACE_OFF) {
list_del_rcu(&new_stat->list);
- call_rcu(&new_stat->rcu, free_dm_hw_stat);
+ kfree_rcu(new_stat, rcu);
break;
}
}
--
1.7.4

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