* request for -stable: "route: Use ipv4_mtu instead of raw rt_pmtu"
@ 2015-07-13 17:26 Timo Teras
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From: Timo Teras @ 2015-07-13 17:26 UTC (permalink / raw)
To: David S. Miller; +Cc: Herbert Xu, Li Wei, netdev
Hi,
Can you queue for active older -stables up to 3.18:
commit 3cdaa5be9e81 "ipv4: Don't increase PMTU with Datagram Too Big message"
commit cb6ccf09d6b9 "route: Use ipv4_mtu instead of raw rt_pmtu"
commit 3cdaa5be9e81 made it to 3.19.y and was later fixed additionally
with conversion to ipv4_mtu() in the second referenced commit.
However, these patches together will fix another case that is not so
obvious: the case if the original route had MTU set on it. Previously
it was ignored but using ipv4_mtu as the first check will also check
RTAX_MTU on metrics. This fixes the nasty issue that PMTU can trigger
to send larger packets then what was explicitly configured via a static
route mtu.
Thanks,
Timo
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2015-07-13 17:26 request for -stable: "route: Use ipv4_mtu instead of raw rt_pmtu" Timo Teras
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