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ipmr, ip6mr: Unite creation of new mr_table 

Now that both ipmr and ip6mr are using the same mr_table structure,
we can have a common function to allocate & initialize a new instance.

Signed-off-by: Yuval Mintz <yuvalm@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz 2018-02-28 23:29:33 +02:00 committed by David S. Miller
parent b70432f731
commit 0bbbf0e7d0
4 changed files with 64 additions and 37 deletions
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17
include/linux/mroute_base.h
View File

@ -85,6 +85,13 @@ void vif_device_init(struct vif_device *v,
unsigned char threshold,
unsigned short flags,
unsigned short get_iflink_mask);
struct mr_table *
mr_table_alloc(struct net *net, u32 id,
const struct rhashtable_params *rht_params,
void (*expire_func)(struct timer_list *t),
void (*table_set)(struct mr_table *mrt,
struct net *net));
#else
static inline void vif_device_init(struct vif_device *v,
struct net_device *dev,
@ -94,5 +101,15 @@ static inline void vif_device_init(struct vif_device *v,
unsigned short get_iflink_mask)
{
}
static inline struct mr_table *
mr_table_alloc(struct net *net, u32 id,
const struct rhashtable_params *rht_params,
void (*expire_func)(struct timer_list *t),
void (*table_set)(struct mr_table *mrt,
struct net *net))
{
return NULL;
}
#endif
#endif

27
net/ipv4/ipmr.c
View File

@ -352,6 +352,14 @@ static const struct rhashtable_params ipmr_rht_params = {
.automatic_shrinking = true,
};
static void ipmr_new_table_set(struct mr_table *mrt,
struct net *net)
{
#ifdef CONFIG_IP_MROUTE_MULTIPLE_TABLES
list_add_tail_rcu(&mrt->list, &net->ipv4.mr_tables);
#endif
}
static struct mr_table *ipmr_new_table(struct net *net, u32 id)
{
struct mr_table *mrt;
@ -364,23 +372,8 @@ static struct mr_table *ipmr_new_table(struct net *net, u32 id)
if (mrt)
return mrt;
mrt = kzalloc(sizeof(*mrt), GFP_KERNEL);
if (!mrt)
return ERR_PTR(-ENOMEM);
write_pnet(&mrt->net, net);
mrt->id = id;
rhltable_init(&mrt->mfc_hash, &ipmr_rht_params);
INIT_LIST_HEAD(&mrt->mfc_cache_list);
INIT_LIST_HEAD(&mrt->mfc_unres_queue);
timer_setup(&mrt->ipmr_expire_timer, ipmr_expire_process, 0);
mrt->mroute_reg_vif_num = -1;
#ifdef CONFIG_IP_MROUTE_MULTIPLE_TABLES
list_add_tail_rcu(&mrt->list, &net->ipv4.mr_tables);
#endif
return mrt;
return mr_table_alloc(net, id, &ipmr_rht_params,
ipmr_expire_process, ipmr_new_table_set);
}
static void ipmr_free_table(struct mr_table *mrt)

27
net/ipv4/ipmr_base.c
View File

@ -26,3 +26,30 @@ void vif_device_init(struct vif_device *v,
v->link = dev->ifindex;
}
EXPORT_SYMBOL(vif_device_init);
struct mr_table *
mr_table_alloc(struct net *net, u32 id,
const struct rhashtable_params *rht_params,
void (*expire_func)(struct timer_list *t),
void (*table_set)(struct mr_table *mrt,
struct net *net))
{
struct mr_table *mrt;
mrt = kzalloc(sizeof(*mrt), GFP_KERNEL);
if (!mrt)
return NULL;
mrt->id = id;
write_pnet(&mrt->net, net);
rhltable_init(&mrt->mfc_hash, rht_params);
INIT_LIST_HEAD(&mrt->mfc_cache_list);
INIT_LIST_HEAD(&mrt->mfc_unres_queue);
timer_setup(&mrt->ipmr_expire_timer, expire_func, 0);
mrt->mroute_reg_vif_num = -1;
table_set(mrt, net);
return mrt;
}
EXPORT_SYMBOL(mr_table_alloc);

30
net/ipv6/ip6mr.c
View File

@ -31,7 +31,6 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/compat.h>
#include <net/protocol.h>
#include <linux/skbuff.h>
@ -295,6 +294,14 @@ static const struct rhashtable_params ip6mr_rht_params = {
.automatic_shrinking = true,
};
static void ip6mr_new_table_set(struct mr_table *mrt,
struct net *net)
{
#ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
list_add_tail_rcu(&mrt->list, &net->ipv6.mr6_tables);
#endif
}
static struct mr_table *ip6mr_new_table(struct net *net, u32 id)
{
struct mr_table *mrt;
@ -303,25 +310,8 @@ static struct mr_table *ip6mr_new_table(struct net *net, u32 id)
if (mrt)
return mrt;
mrt = kzalloc(sizeof(*mrt), GFP_KERNEL);
if (!mrt)
return NULL;
mrt->id = id;
write_pnet(&mrt->net, net);
rhltable_init(&mrt->mfc_hash, &ip6mr_rht_params);
INIT_LIST_HEAD(&mrt->mfc_cache_list);
INIT_LIST_HEAD(&mrt->mfc_unres_queue);
timer_setup(&mrt->ipmr_expire_timer, ipmr_expire_process, 0);
#ifdef CONFIG_IPV6_PIMSM_V2
mrt->mroute_reg_vif_num = -1;
#endif
#ifdef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
list_add_tail_rcu(&mrt->list, &net->ipv6.mr6_tables);
#endif
return mrt;
return mr_table_alloc(net, id, &ip6mr_rht_params,
ipmr_expire_process, ip6mr_new_table_set);
}
static void ip6mr_free_table(struct mr_table *mrt)