diff options
| author |   David S. Miller <davem@davemloft.net> | 2010-12-12 21:55:08 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-12-12 22:08:17 -0800 |
| commit | 323e126f0c5995f779d7df7fd035f6e8fed8764d (patch) | |
| tree | 402c7267a45ae488363bb1ef8e4c786b65b82572 /net/ipv4/ip_output.c | |
| parent | ipv6: Demark default hoplimit as zero. (diff) | |
| download | linux-dev-323e126f0c5995f779d7df7fd035f6e8fed8764d.tar.xz linux-dev-323e126f0c5995f779d7df7fd035f6e8fed8764d.zip | |
ipv4: Don't pre-seed hoplimit metric.
Always go through a new ip4_dst_hoplimit() helper, just like ipv6.
This allowed several simplifications:
1) The interim dst_metric_hoplimit() can go as it's no longer
userd.
2) The sysctl_ip_default_ttl entry no longer needs to use
ipv4_doint_and_flush, since the sysctl is not cached in
routing cache metrics any longer.
3) ipv4_doint_and_flush no longer needs to be exported and
therefore can be marked static.
When ipv4_doint_and_flush_strategy was removed some time ago,
the external declaration in ip.h was mistakenly left around
so kill that off too.
We have to move the sysctl_ip_default_ttl declaration into
ipv4's route cache definition header net/route.h, because
currently net/ip.h (where the declaration lives now) has
a back dependency on net/route.h
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_output.c')
| -rw-r--r-- | net/ipv4/ip_output.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index ea28fa5f1992..04c7b3ba6b39 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -82,6 +82,7 @@ #include <linux/tcp.h> int sysctl_ip_default_ttl __read_mostly = IPDEFTTL; +EXPORT_SYMBOL(sysctl_ip_default_ttl); /* Generate a checksum for an outgoing IP datagram. */ __inline__ void ip_send_check(struct iphdr *iph) @@ -130,7 +131,7 @@ static inline int ip_select_ttl(struct inet_sock *inet, struct dst_entry *dst) int ttl = inet->uc_ttl; if (ttl < 0) - ttl = dst_metric_hoplimit(dst); + ttl = ip4_dst_hoplimit(dst); return ttl; } |