xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ipv6: unify fragment thresh handling code

Browse Source 
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Michal Kubeček <mkubecek@suse.cz>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amerigo Wang
2012-09-18 16:50:11 +00:00
committed by David S. Miller
parent d4915c087f
commit 6b102865e7
5 changed files with 18 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
net/ipv4/inet_fragment.c
View File

@@ -89,7 +89,7 @@ void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f)
nf->low_thresh = 0;
local_bh_disable();
inet_frag_evictor(nf, f);
inet_frag_evictor(nf, f, true);
local_bh_enable();
}
EXPORT_SYMBOL(inet_frags_exit_net);
@@ -158,11 +158,16 @@ void inet_frag_destroy(struct inet_frag_queue *q, struct inet_frags *f,
}
EXPORT_SYMBOL(inet_frag_destroy);
int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f)
int inet_frag_evictor(struct netns_frags *nf, struct inet_frags *f, bool force)
{
struct inet_frag_queue *q;
int work, evicted = 0;
if (!force) {
if (atomic_read(&nf->mem) <= nf->high_thresh)
return 0;
}
work = atomic_read(&nf->mem) - nf->low_thresh;
while (work > 0) {
read_lock(&f->lock);

5
net/ipv4/ip_fragment.c
View File

@@ -219,7 +219,7 @@ static void ip_evictor(struct net *net)
{
int evicted;
evicted = inet_frag_evictor(&net->ipv4.frags, &ip4_frags);
evicted = inet_frag_evictor(&net->ipv4.frags, &ip4_frags, false);
if (evicted)
IP_ADD_STATS_BH(net, IPSTATS_MIB_REASMFAILS, evicted);
}
@@ -684,8 +684,7 @@ int ip_defrag(struct sk_buff *skb, u32 user)
IP_INC_STATS_BH(net, IPSTATS_MIB_REASMREQDS);
/* Start by cleaning up the memory. */
if (atomic_read(&net->ipv4.frags.mem) > net->ipv4.frags.high_thresh)
ip_evictor(net);
ip_evictor(net);
/* Lookup (or create) queue header */
if ((qp = ip_find(net, ip_hdr(skb), user)) != NULL) {