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authorEric Dumazet <edumazet@google.com>2019-05-24 09:03:38 -0700
committerDavid S. Miller <davem@davemloft.net>2019-05-26 14:08:05 -0700
commita39aca678a0626941aa99c18c1c452ca758e7865 (patch)
treef7b16eb9d746b1afe0b8b70c78c5bc197aef0ca4 /net/ipv4/ip_fragment.c
parentnet: rename inet_frags_init_net() to fdir_init() (diff)
downloadlinux-dev-a39aca678a0626941aa99c18c1c452ca758e7865.tar.xz
linux-dev-a39aca678a0626941aa99c18c1c452ca758e7865.zip
net: add a net pointer to struct fqdir
fqdir will soon be dynamically allocated. We need to reach the struct net pointer from fqdir, so add it, and replace the various container_of() constructs by direct access to the new field. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_fragment.c')
-rw-r--r--net/ipv4/ip_fragment.c20
1 files changed, 7 insertions, 13 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index d95592d52981..d59269bbe1b6 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -82,9 +82,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
static void ip4_frag_init(struct inet_frag_queue *q, const void *a)
{
struct ipq *qp = container_of(q, struct ipq, q);
- struct netns_ipv4 *ipv4 = container_of(q->fqdir, struct netns_ipv4,
- fqdir);
- struct net *net = container_of(ipv4, struct net, ipv4);
+ struct net *net = q->fqdir->net;
const struct frag_v4_compare_key *key = a;
@@ -142,7 +140,7 @@ static void ip_expire(struct timer_list *t)
int err;
qp = container_of(frag, struct ipq, q);
- net = container_of(qp->q.fqdir, struct net, ipv4.fqdir);
+ net = qp->q.fqdir->net;
rcu_read_lock();
spin_lock(&qp->q.lock);
@@ -236,12 +234,8 @@ static int ip_frag_too_far(struct ipq *qp)
rc = qp->q.fragments_tail && (end - start) > max;
- if (rc) {
- struct net *net;
-
- net = container_of(qp->q.fqdir, struct net, ipv4.fqdir);
- __IP_INC_STATS(net, IPSTATS_MIB_REASMFAILS);
- }
+ if (rc)
+ __IP_INC_STATS(qp->q.fqdir->net, IPSTATS_MIB_REASMFAILS);
return rc;
}
@@ -273,7 +267,7 @@ static int ip_frag_reinit(struct ipq *qp)
/* Add new segment to existing queue. */
static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
{
- struct net *net = container_of(qp->q.fqdir, struct net, ipv4.fqdir);
+ struct net *net = qp->q.fqdir->net;
int ihl, end, flags, offset;
struct sk_buff *prev_tail;
struct net_device *dev;
@@ -399,7 +393,7 @@ err:
static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
struct sk_buff *prev_tail, struct net_device *dev)
{
- struct net *net = container_of(qp->q.fqdir, struct net, ipv4.fqdir);
+ struct net *net = qp->q.fqdir->net;
struct iphdr *iph;
void *reasm_data;
int len, err;
@@ -673,7 +667,7 @@ static int __net_init ipv4_frags_init_net(struct net *net)
net->ipv4.fqdir.max_dist = 64;
- res = fqdir_init(&net->ipv4.fqdir, &ip4_frags);
+ res = fqdir_init(&net->ipv4.fqdir, &ip4_frags, net);
if (res < 0)
return res;
res = ip4_frags_ns_ctl_register(net);