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ipv4: Minor logic clean-up in ipv4_mtu 

In ipv4_mtu there is some logic where we are testing for a non-zero value
and a timer expiration, then setting the value to zero, and then testing if
the value is zero we set it to a value based on the dst.  Instead of
bothering with the extra steps it is easier to just cleanup the logic so
that we set it to the dst based value if it is zero or if the timer has
expired.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
This commit is contained in:
Alexander Duyck 2012-08-27 06:30:01 +00:00 committed by David S. Miller
parent 4a2c240691
commit 98d75c3724
1 changed files with 1 additions and 4 deletions
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5
net/ipv4/route.c
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@ -1134,10 +1134,7 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst)
const struct rtable *rt = (const struct rtable *) dst;
unsigned int mtu = rt->rt_pmtu;
if (mtu && time_after_eq(jiffies, rt->dst.expires))
mtu = 0;
if (!mtu)
if (!mtu || time_after_eq(jiffies, rt->dst.expires))
mtu = dst_metric_raw(dst, RTAX_MTU);
if (mtu && rt_is_output_route(rt))