diff options
| author |   David Ahern <dsahern@gmail.com> | 2018-10-04 20:07:54 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-10-04 21:54:25 -0700 |
| commit | 1620a33695d81611360d813a47ebde9386714036 (patch) | |
| tree | 31389ac748a71fdac40f2ab6f4122267df29845b /include | |
| parent | net: common metrics init helper for dst_entry (diff) | |
| download | linux-dev-1620a33695d81611360d813a47ebde9386714036.tar.xz linux-dev-1620a33695d81611360d813a47ebde9386714036.zip | |
net: Move free of dst_metrics to helper
Move the refcounting and potential free of dst metrics associated
for ipv4 and ipv6 to a common helper.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index f9a7125b4bda..72593e171d14 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -441,6 +441,15 @@ void ip_dst_init_metrics(struct dst_entry *dst, struct dst_metrics *fib_metrics) } } +static inline +void ip_dst_metrics_put(struct dst_entry *dst) +{ + struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst); + + if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt)) + kfree(p); +} + u32 ip_idents_reserve(u32 hash, int segs); void __ip_select_ident(struct net *net, struct iphdr *iph, int segs); |