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Date: Mon, 26 Mar 2018 15:01:33 +0300
From: Ido Schimmel <idosch@...lanox.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, yuvalm@...lanox.com, jiri@...lanox.com,
nikolay@...ulusnetworks.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 03/15] ipmr: Make ipmr_dump() common
From: Yuval Mintz <yuvalm@...lanox.com>
Since all the primitive elements used for the notification done by ipmr
are now common [mr_table, mr_mfc, vif_device] we can refactor the logic
for dumping them to a common file.
Signed-off-by: Yuval Mintz <yuvalm@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
include/linux/mroute_base.h | 18 +++++++++++++++
net/ipv4/ipmr.c | 53 ++-------------------------------------------
net/ipv4/ipmr_base.c | 42 +++++++++++++++++++++++++++++++++++
3 files changed, 62 insertions(+), 51 deletions(-)
diff --git a/include/linux/mroute_base.h b/include/linux/mroute_base.h
index 2c594686c05e..289eb5aa7b5d 100644
--- a/include/linux/mroute_base.h
+++ b/include/linux/mroute_base.h
@@ -277,6 +277,13 @@ int mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb,
u32 portid, u32 seq, struct mr_mfc *c,
int cmd, int flags),
spinlock_t *lock);
+
+int mr_dump(struct net *net, struct notifier_block *nb, unsigned short family,
+ int (*rules_dump)(struct net *net,
+ struct notifier_block *nb),
+ struct mr_table *(*mr_iter)(struct net *net,
+ struct mr_table *mrt),
+ rwlock_t *mrt_lock);
#else
static inline void vif_device_init(struct vif_device *v,
struct net_device *dev,
@@ -333,6 +340,17 @@ mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb,
{
return -EINVAL;
}
+
+static inline int mr_dump(struct net *net, struct notifier_block *nb,
+ unsigned short family,
+ int (*rules_dump)(struct net *net,
+ struct notifier_block *nb),
+ struct mr_table *(*mr_iter)(struct net *net,
+ struct mr_table *mrt),
+ rwlock_t *mrt_lock)
+{
+ return -EINVAL;
+}
#endif
static inline void *mr_mfc_find(struct mr_table *mrt, void *hasharg)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 470956d2d8ad..24c340021aba 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -644,16 +644,6 @@ static struct net_device *ipmr_reg_vif(struct net *net, struct mr_table *mrt)
}
#endif
-static int call_ipmr_vif_entry_notifier(struct notifier_block *nb,
- struct net *net,
- enum fib_event_type event_type,
- struct vif_device *vif,
- vifi_t vif_index, u32 tb_id)
-{
- return mr_call_vif_notifier(nb, net, RTNL_FAMILY_IPMR, event_type,
- vif, vif_index, tb_id);
-}
-
static int call_ipmr_vif_entry_notifiers(struct net *net,
enum fib_event_type event_type,
struct vif_device *vif,
@@ -664,15 +654,6 @@ static int call_ipmr_vif_entry_notifiers(struct net *net,
&net->ipv4.ipmr_seq);
}
-static int call_ipmr_mfc_entry_notifier(struct notifier_block *nb,
- struct net *net,
- enum fib_event_type event_type,
- struct mfc_cache *mfc, u32 tb_id)
-{
- return mr_call_mfc_notifier(nb, net, RTNL_FAMILY_IPMR,
- event_type, &mfc->_c, tb_id);
-}
-
static int call_ipmr_mfc_entry_notifiers(struct net *net,
enum fib_event_type event_type,
struct mfc_cache *mfc, u32 tb_id)
@@ -2950,38 +2931,8 @@ static unsigned int ipmr_seq_read(struct net *net)
static int ipmr_dump(struct net *net, struct notifier_block *nb)
{
- struct mr_table *mrt;
- int err;
-
- err = ipmr_rules_dump(net, nb);
- if (err)
- return err;
-
- ipmr_for_each_table(mrt, net) {
- struct vif_device *v = &mrt->vif_table[0];
- struct mr_mfc *mfc;
- int vifi;
-
- /* Notifiy on table VIF entries */
- read_lock(&mrt_lock);
- for (vifi = 0; vifi < mrt->maxvif; vifi++, v++) {
- if (!v->dev)
- continue;
-
- call_ipmr_vif_entry_notifier(nb, net, FIB_EVENT_VIF_ADD,
- v, vifi, mrt->id);
- }
- read_unlock(&mrt_lock);
-
- /* Notify on table MFC entries */
- list_for_each_entry_rcu(mfc, &mrt->mfc_cache_list, list)
- call_ipmr_mfc_entry_notifier(nb, net,
- FIB_EVENT_ENTRY_ADD,
- (struct mfc_cache *)mfc,
- mrt->id);
- }
-
- return 0;
+ return mr_dump(net, nb, RTNL_FAMILY_IPMR, ipmr_rules_dump,
+ ipmr_mr_table_iter, &mrt_lock);
}
static const struct fib_notifier_ops ipmr_notifier_ops_template = {
diff --git a/net/ipv4/ipmr_base.c b/net/ipv4/ipmr_base.c
index 8ba55bfda817..4fe97723b53f 100644
--- a/net/ipv4/ipmr_base.c
+++ b/net/ipv4/ipmr_base.c
@@ -321,3 +321,45 @@ int mr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb,
return skb->len;
}
EXPORT_SYMBOL(mr_rtm_dumproute);
+
+int mr_dump(struct net *net, struct notifier_block *nb, unsigned short family,
+ int (*rules_dump)(struct net *net,
+ struct notifier_block *nb),
+ struct mr_table *(*mr_iter)(struct net *net,
+ struct mr_table *mrt),
+ rwlock_t *mrt_lock)
+{
+ struct mr_table *mrt;
+ int err;
+
+ err = rules_dump(net, nb);
+ if (err)
+ return err;
+
+ for (mrt = mr_iter(net, NULL); mrt; mrt = mr_iter(net, mrt)) {
+ struct vif_device *v = &mrt->vif_table[0];
+ struct mr_mfc *mfc;
+ int vifi;
+
+ /* Notifiy on table VIF entries */
+ read_lock(mrt_lock);
+ for (vifi = 0; vifi < mrt->maxvif; vifi++, v++) {
+ if (!v->dev)
+ continue;
+
+ mr_call_vif_notifier(nb, net, family,
+ FIB_EVENT_VIF_ADD,
+ v, vifi, mrt->id);
+ }
+ read_unlock(mrt_lock);
+
+ /* Notify on table MFC entries */
+ list_for_each_entry_rcu(mfc, &mrt->mfc_cache_list, list)
+ mr_call_mfc_notifier(nb, net, family,
+ FIB_EVENT_ENTRY_ADD,
+ mfc, mrt->id);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(mr_dump);
--
2.14.3
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