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Message-Id: <20170123115706.4354-9-aschultz@tpip.net>
Date: Mon, 23 Jan 2017 12:56:57 +0100
From: Andreas Schultz <aschultz@...p.net>
To: Pablo Neira <pablo@...filter.org>
Cc: netdev@...r.kernel.org, Harald Welte <laforge@...monks.org>,
Lionel Gauthier <Lionel.Gauthier@...ecom.fr>,
openbsc@...ts.osmocom.org
Subject: [PATCH 08/17] gtp: consolidate pdp context destruction into helper
Signed-off-by: Andreas Schultz <aschultz@...p.net>
---
drivers/net/gtp.c | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)
diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index f434f84..5b35ebb 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -84,6 +84,8 @@ struct gtp_net {
static u32 gtp_h_initval;
+static void pdp_context_delete(struct pdp_ctx *pctx);
+
static inline u32 gtp0_hashfn(u64 tid)
{
u32 *tid32 = (u32 *) &tid;
@@ -775,13 +777,10 @@ static void gtp_hashtable_free(struct gtp_dev *gtp)
struct pdp_ctx *pctx;
int i;
- for (i = 0; i < gtp->hash_size; i++) {
- hlist_for_each_entry_rcu(pctx, >p->tid_hash[i], hlist_tid) {
- hlist_del_rcu(&pctx->hlist_tid);
- hlist_del_rcu(&pctx->hlist_addr);
- kfree_rcu(pctx, rcu_head);
- }
- }
+ for (i = 0; i < gtp->hash_size; i++)
+ hlist_for_each_entry_rcu(pctx, >p->tid_hash[i], hlist_tid)
+ pdp_context_delete(pctx);
+
synchronize_rcu();
kfree(gtp->addr_hash);
kfree(gtp->tid_hash);
@@ -984,6 +983,13 @@ static int ipv4_pdp_add(struct net_device *dev, struct genl_info *info)
return 0;
}
+static void pdp_context_delete(struct pdp_ctx *pctx)
+{
+ hlist_del_rcu(&pctx->hlist_tid);
+ hlist_del_rcu(&pctx->hlist_addr);
+ kfree_rcu(pctx, rcu_head);
+}
+
static int gtp_genl_new_pdp(struct sk_buff *skb, struct genl_info *info)
{
struct net_device *dev;
@@ -1082,10 +1088,7 @@ static int gtp_genl_del_pdp(struct sk_buff *skb, struct genl_info *info)
pr_debug("GTPv1-U: deleting tunnel id = %x/%x (pdp %p)\n",
pctx->u.v1.i_tei, pctx->u.v1.o_tei, pctx);
- hlist_del_rcu(&pctx->hlist_tid);
- hlist_del_rcu(&pctx->hlist_addr);
- kfree_rcu(pctx, rcu_head);
-
+ pdp_context_delete(pctx);
return 0;
}
--
2.10.2
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