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yaml
---
r: 133892
b: refs/heads/master
c: 1e8fb3b
h: refs/heads/master
v: v3
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Benjamin Thery authored and David S. Miller committed Jan 22, 2009
1 parent b5da316 commit ac131fd
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Showing 3 changed files with 23 additions and 19 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2bb8b26c3ea8bde1943dc5cd4dda2dc9f48fb281
refs/heads/master: 1e8fb3b6a4ac6c5e486298d88289038456957545
1 change: 1 addition & 0 deletions trunk/include/net/netns/ipv4.h
Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@ struct netns_ipv4 {
struct mfc_cache **mfc_cache_array;
struct vif_device *vif_table;
int maxvif;
atomic_t cache_resolve_queue_len;
#endif
};
#endif
39 changes: 21 additions & 18 deletions trunk/net/ipv4/ipmr.c
Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,6 @@ static int mroute_do_assert; /* Set in PIM assert */
static int mroute_do_pim;

static struct mfc_cache *mfc_unres_queue; /* Queue of unresolved entries */
static atomic_t cache_resolve_queue_len; /* Size of unresolved */

/* Special spinlock for queue of unresolved entries */
static DEFINE_SPINLOCK(mfc_unres_lock);
Expand Down Expand Up @@ -340,7 +339,7 @@ static void ipmr_destroy_unres(struct mfc_cache *c)
struct sk_buff *skb;
struct nlmsgerr *e;

atomic_dec(&cache_resolve_queue_len);
atomic_dec(&init_net.ipv4.cache_resolve_queue_len);

while ((skb = skb_dequeue(&c->mfc_un.unres.unresolved))) {
if (ip_hdr(skb)->version == 0) {
Expand Down Expand Up @@ -374,7 +373,7 @@ static void ipmr_expire_process(unsigned long dummy)
return;
}

if (atomic_read(&cache_resolve_queue_len) == 0)
if (mfc_unres_queue == NULL)
goto out;

now = jiffies;
Expand All @@ -395,7 +394,7 @@ static void ipmr_expire_process(unsigned long dummy)
ipmr_destroy_unres(c);
}

if (atomic_read(&cache_resolve_queue_len))
if (mfc_unres_queue != NULL)
mod_timer(&ipmr_expire_timer, jiffies + expires);

out:
Expand Down Expand Up @@ -690,7 +689,8 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)

spin_lock_bh(&mfc_unres_lock);
for (c=mfc_unres_queue; c; c=c->next) {
if (c->mfc_mcastgrp == iph->daddr &&
if (net_eq(mfc_net(c), &init_net) &&
c->mfc_mcastgrp == iph->daddr &&
c->mfc_origin == iph->saddr)
break;
}
Expand All @@ -700,7 +700,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
* Create a new entry if allowable
*/

if (atomic_read(&cache_resolve_queue_len) >= 10 ||
if (atomic_read(&init_net.ipv4.cache_resolve_queue_len) >= 10 ||
(c = ipmr_cache_alloc_unres(&init_net)) == NULL) {
spin_unlock_bh(&mfc_unres_lock);

Expand Down Expand Up @@ -729,7 +729,7 @@ ipmr_cache_unresolved(vifi_t vifi, struct sk_buff *skb)
return err;
}

atomic_inc(&cache_resolve_queue_len);
atomic_inc(&init_net.ipv4.cache_resolve_queue_len);
c->next = mfc_unres_queue;
mfc_unres_queue = c;

Expand Down Expand Up @@ -827,14 +827,16 @@ static int ipmr_mfc_add(struct mfcctl *mfc, int mrtsock)
spin_lock_bh(&mfc_unres_lock);
for (cp = &mfc_unres_queue; (uc=*cp) != NULL;
cp = &uc->next) {
if (uc->mfc_origin == c->mfc_origin &&
if (net_eq(mfc_net(uc), &init_net) &&
uc->mfc_origin == c->mfc_origin &&
uc->mfc_mcastgrp == c->mfc_mcastgrp) {
*cp = uc->next;
if (atomic_dec_and_test(&cache_resolve_queue_len))
del_timer(&ipmr_expire_timer);
atomic_dec(&init_net.ipv4.cache_resolve_queue_len);
break;
}
}
if (mfc_unres_queue == NULL)
del_timer(&ipmr_expire_timer);
spin_unlock_bh(&mfc_unres_lock);

if (uc) {
Expand Down Expand Up @@ -880,18 +882,19 @@ static void mroute_clean_tables(struct sock *sk)
}
}

if (atomic_read(&cache_resolve_queue_len) != 0) {
struct mfc_cache *c;
if (atomic_read(&init_net.ipv4.cache_resolve_queue_len) != 0) {
struct mfc_cache *c, **cp;

spin_lock_bh(&mfc_unres_lock);
while (mfc_unres_queue != NULL) {
c = mfc_unres_queue;
mfc_unres_queue = c->next;
spin_unlock_bh(&mfc_unres_lock);
cp = &mfc_unres_queue;
while ((c = *cp) != NULL) {
if (!net_eq(mfc_net(c), &init_net)) {
cp = &c->next;
continue;
}
*cp = c->next;

ipmr_destroy_unres(c);

spin_lock_bh(&mfc_unres_lock);
}
spin_unlock_bh(&mfc_unres_lock);
}
Expand Down

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