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[NETNS][FRAGS]: Make the mem counter per-namespace.

Browse source 
This is also simple, but introduces more changes, since
then mem counter is altered in more places.

Signed-off-by: Pavel Emelyanov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pavel Emelyanov 2008-01-22 06:07:25 -08:00 • committed by David S. Miller
commit 6ddc082223
9 changed files with 54 additions and 50 deletions
Download patch file Download diff file Expand all files Collapse all files

14
net/ipv6/netfilter/nf_conntrack_reasm.c
View file

@ -155,7 +155,7 @@ static inline void frag_kfree_skb(struct sk_buff *skb, unsigned int *work)
{
if (work)
*work -= skb->truesize;
atomic_sub(skb->truesize, &nf_frags.mem);
atomic_sub(skb->truesize, &nf_init_frags.mem);
nf_skb_free(skb);
kfree_skb(skb);
}
@ -177,7 +177,7 @@ static __inline__ void fq_kill(struct nf_ct_frag6_queue *fq)
static void nf_ct_frag6_evictor(void)
{
inet_frag_evictor(&nf_frags);
inet_frag_evictor(&nf_init_frags, &nf_frags);
}
static void nf_ct_frag6_expire(unsigned long data)
@ -382,7 +382,7 @@ static int nf_ct_frag6_queue(struct nf_ct_frag6_queue *fq, struct sk_buff *skb,
skb->dev = NULL;
fq->q.stamp = skb->tstamp;
fq->q.meat += skb->len;
atomic_add(skb->truesize, &nf_frags.mem);
atomic_add(skb->truesize, &nf_init_frags.mem);
/* The first fragment.
* nhoffset is obtained from the first fragment, of course.
@ -459,7 +459,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
clone->ip_summed = head->ip_summed;
NFCT_FRAG6_CB(clone)->orig = NULL;
atomic_add(clone->truesize, &nf_frags.mem);
atomic_add(clone->truesize, &nf_init_frags.mem);
}
/* We have to remove fragment header from datagram and to relocate
@ -473,7 +473,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
skb_shinfo(head)->frag_list = head->next;
skb_reset_transport_header(head);
skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &nf_frags.mem);
atomic_sub(head->truesize, &nf_init_frags.mem);
for (fp=head->next; fp; fp = fp->next) {
head->data_len += fp->len;
@ -483,7 +483,7 @@ nf_ct_frag6_reasm(struct nf_ct_frag6_queue *fq, struct net_device *dev)
else if (head->ip_summed == CHECKSUM_COMPLETE)
head->csum = csum_add(head->csum, fp->csum);
head->truesize += fp->truesize;
atomic_sub(fp->truesize, &nf_frags.mem);
atomic_sub(fp->truesize, &nf_init_frags.mem);
}
head->next = NULL;
@ -633,7 +633,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
goto ret_orig;
}
if (atomic_read(&nf_frags.mem) > nf_frags_ctl.high_thresh)
if (atomic_read(&nf_init_frags.mem) > nf_frags_ctl.high_thresh)
nf_ct_frag6_evictor();
fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr);

2
net/ipv6/proc.c
View file

@ -44,7 +44,7 @@ static int sockstat6_seq_show(struct seq_file *seq, void *v)
seq_printf(seq, "RAW6: inuse %d\n",
sock_prot_inuse_get(&rawv6_prot));
seq_printf(seq, "FRAG6: inuse %d memory %d\n",
ip6_frag_nqueues(&init_net), ip6_frag_mem());
ip6_frag_nqueues(&init_net), ip6_frag_mem(&init_net));
return 0;
}

28
net/ipv6/reassembly.c
View file

@ -89,9 +89,9 @@ int ip6_frag_nqueues(struct net *net)
return net->ipv6.frags.nqueues;
}
int ip6_frag_mem(void)
int ip6_frag_mem(struct net *net)
{
return atomic_read(&ip6_frags.mem);
return atomic_read(&net->ipv6.frags.mem);
}
static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
@ -149,11 +149,12 @@ int ip6_frag_match(struct inet_frag_queue *q, void *a)
EXPORT_SYMBOL(ip6_frag_match);
/* Memory Tracking Functions. */
static inline void frag_kfree_skb(struct sk_buff *skb, int *work)
static inline void frag_kfree_skb(struct netns_frags *nf,
struct sk_buff *skb, int *work)
{
if (work)
*work -= skb->truesize;
atomic_sub(skb->truesize, &ip6_frags.mem);
atomic_sub(skb->truesize, &nf->mem);
kfree_skb(skb);
}
@ -183,11 +184,11 @@ static __inline__ void fq_kill(struct frag_queue *fq)
inet_frag_kill(&fq->q, &ip6_frags);
}
static void ip6_evictor(struct inet6_dev *idev)
static void ip6_evictor(struct net *net, struct inet6_dev *idev)
{
int evicted;
evicted = inet_frag_evictor(&ip6_frags);
evicted = inet_frag_evictor(&net->ipv6.frags, &ip6_frags);
if (evicted)
IP6_ADD_STATS_BH(idev, IPSTATS_MIB_REASMFAILS, evicted);
}
@ -389,7 +390,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
fq->q.fragments = next;
fq->q.meat -= free_it->len;
frag_kfree_skb(free_it, NULL);
frag_kfree_skb(fq->q.net, free_it, NULL);
}
}
@ -409,7 +410,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
}
fq->q.stamp = skb->tstamp;
fq->q.meat += skb->len;
atomic_add(skb->truesize, &ip6_frags.mem);
atomic_add(skb->truesize, &fq->q.net->mem);
/* The first fragment.
* nhoffset is obtained from the first fragment, of course.
@ -503,7 +504,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
head->len -= clone->len;
clone->csum = 0;
clone->ip_summed = head->ip_summed;
atomic_add(clone->truesize, &ip6_frags.mem);
atomic_add(clone->truesize, &fq->q.net->mem);
}
/* We have to remove fragment header from datagram and to relocate
@ -518,7 +519,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
skb_shinfo(head)->frag_list = head->next;
skb_reset_transport_header(head);
skb_push(head, head->data - skb_network_header(head));
atomic_sub(head->truesize, &ip6_frags.mem);
atomic_sub(head->truesize, &fq->q.net->mem);
for (fp=head->next; fp; fp = fp->next) {
head->data_len += fp->len;
@ -528,7 +529,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
else if (head->ip_summed == CHECKSUM_COMPLETE)
head->csum = csum_add(head->csum, fp->csum);
head->truesize += fp->truesize;
atomic_sub(fp->truesize, &ip6_frags.mem);
atomic_sub(fp->truesize, &fq->q.net->mem);
}
head->next = NULL;
@ -600,8 +601,9 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
}
net = skb->dev->nd_net;
if (atomic_read(&ip6_frags.mem) > init_net.ipv6.sysctl.frags.high_thresh)
ip6_evictor(ip6_dst_idev(skb->dst));
if (atomic_read(&net->ipv6.frags.mem) >
init_net.ipv6.sysctl.frags.high_thresh)
ip6_evictor(net, ip6_dst_idev(skb->dst));
if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
ip6_dst_idev(skb->dst))) != NULL) {